feat(builder): Added calssic menubar

Updated project status and milestone details in README.

.codegraph/.gitignore

@@ -0,0 +1,5 @@
+# CodeGraph data files — local to each machine, not for committing.
+# Ignore everything in .codegraph/ except this file itself, so transient
+# files (the database, daemon.pid, sockets, logs) never show up in git.
+*
+!.gitignore

.github/workflows/deploy-docs.yml

@@ -0,0 +1,44 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - "web/docs/**"
+      - "pnpm-lock.yaml"
+      - ".github/workflows/deploy-docs.yml"
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    name: Deploy Docs to Cloudflare Workers
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 11
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: "pnpm"
+
+      - name: Install Dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build Docs
+        run: pnpm --filter docs build
+
+      - name: Deploy to Cloudflare Workers
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          workingDirectory: "web/docs"

.gitignore

@@ -46,6 +46,12 @@ Thumbs.db
 
 # Database
 omnia.db
+*.db
+*.db-journal
+*.db-wal
+*.db-shm
+**/data/*.db
+data/
 
 # Environment Files
 .env
@@ -54,3 +60,5 @@ omnia.db
 
 # Vercel
 .vercel
+
+__local_notes/

CODE_OF_CONDUCT.md

@@ -0,0 +1,128 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+- Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+- The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+mail@adityagupta.dev.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available at
+https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at
+https://www.contributor-covenant.org/faq. Translations are available at
+https://www.contributor-covenant.org/translations.

CONTRIBUTING.md

@@ -0,0 +1,99 @@
+# Contributing to Omnia
+
+Thank you for your interest in contributing to Omnia! We welcome contributions from developers, technical writers, and anyone interested in agentic narrative simulation.
+
+Please take a moment to review this document before submitting contributions.
+
+## Table of Contents
+
+1. [Documentation](#documentation)
+2. [Getting Started](#getting-started)
+3. [Development Workflow](#development-workflow)
+4. [Coding Standards](#coding-standards)
+5. [Pull Request Guidelines](#pull-request-guidelines)
+
+## Documentation
+
+The primary source of truth for the Omnia project is the official documentation:
+👉 **[Omnia Documentation](https://omnia.adityagupta.dev/docs)**
+
+Please refer to the documentation to understand the project architecture, memory model, spatial systems, intents framework, and custom LLM configurations.
+
+## Getting Started
+
+Omnia is organized as a monorepo managed with **pnpm** workspaces.
+
+### Prerequisites
+
+- **Node.js** (v22.13 or newer recommended)
+- **pnpm** (v11 or newer recommended)
+
+### Local Setup
+
+1. Fork the repository and clone your fork:
+   ```bash
+   git clone https://github.com/YOUR_USERNAME/omnia-consolidated.git
+   cd omnia-consolidated
+   ```
+2. Install dependencies:
+   ```bash
+   pnpm install
+   ```
+3. Run the Web GUI interface locally:
+   ```bash
+   pnpm dev:gui
+   ```
+4. Run the Starlight documentation site locally:
+   ```bash
+   pnpm dev:docs
+   ```
+
+## Development Workflow
+
+### Branching
+
+Create a descriptive branch for your changes:
+
+```bash
+git checkout -b feature/your-feature-name
+# or
+git checkout -b fix/issue-description
+```
+
+### Running Tests
+
+Make sure all unit tests pass before submitting changes:
+
+```bash
+# Run tests once
+pnpm test
+
+# Run tests in watch mode
+pnpm test:watch
+```
+
+### Linting and Formatting
+
+We enforce consistent code quality and formatting rules across the repository.
+
+```bash
+# Check code style and formatting
+pnpm lint
+pnpm format:check
+
+# Auto-fix code style issues
+pnpm lint:fix
+pnpm format
+```
+
+## Coding Standards
+
+- **TypeScript**: Omnia is written entirely in TypeScript. Ensure all new code is strongly typed.
+- **Docstrings**: Document public-facing APIs, methods, and configurations.
+
+## Pull Request Guidelines
+
+1. **Keep PRs Focused**: Keep your changes as small and focused as possible.
+2. **Include Tests**: If you are introducing a new feature or fixing a bug, write corresponding tests in `tests/`.
+3. **Update Documentation**: If your changes alter public behavior or introduce new APIs, update the docs under `web/docs/src/content/docs/`.
+4. **Follow Commit Conventions**: Write clear, descriptive commit messages.

README.md

@@ -1,49 +1,97 @@
-![Omnia Logo](web/docs/src/assets/img/logo.png)
+<p align="center">
+<img src="web/docs/src/assets/img/logo.png" alt="Omnia Logo" />
+</p>
 
-An LLM-assisted narrative simulation engine where the <b>world state lives outside the model</b>, characters act through <b>intents that get validated</b> and applied by engine code, and each character's knowledge, memory, and emotional state are subjective and partial by construction.
+<h1 align="center">Omnia</h1>
 
-Omnia is an engine for building narrative RPG-style worlds where characters are played by a language model. It is built to survive long play sessions instead of falling apart after twenty minutes.
+<p align="center">
+<b>An architectural framework for multi agent-narrative simulations and fictional worlds!</b>
+</p>
+<p align="center">
+  <a href="https://omnia.adityagupta.dev/docs"><img src="https://img.shields.io/badge/Omnia_Docs-Read_The_Docs-red?style=for-the-badge" alt="Docs" /></a>
+  <img src="https://img.shields.io/github/license/sortedcord/omnia-consolidated?style=for-the-badge" alt="License" />
+  <img src="https://img.shields.io/github/repo-size/sortedcord/omnia-consolidated?style=for-the-badge" alt="Repo Size" />
+  <img src="https://img.shields.io/github/languages/top/sortedcord/omnia-consolidated?style=for-the-badge" alt="Top Language" />
+</p>
 
-## The Problem with the Naive Approach
+The <b>world state lives outside the model</b>, characters act through <b>intents that get validated</b> and applied by engine code. Each character's knowledge, memory, and emotional state are subjective and partial by construction.
 
-Single-agent, single-context systems (AI Dungeon and its descendants) prompt one model to _be_ the world and everyone in it. That breaks in predictable ways over long sessions:
+<p align="center">
+  <img src="./web/docs/src/assets/img/puppet.webp" />
+</p>
 
-- **State Leaks:** Characters know things they had no way of learning, because a model with full context cannot help but use it. The assassin's target greets him by name.
-- **Secrets Refuse to Stay Secret:** "Don't reveal this" is a suggestion a model can argue past, not a mechanism that says no. One clever player question and the conspiracy folds.
+Single-agent or single-context systems (AI Dungeon and its descendants) prompt one model to _be_ the world and everyone in it. That breaks in predictable ways over long sessions:
+
+- **State Leaks:** Characters know things they had no way of learning, because a model with full context cannot help but use it.
 - **Consequences Evaporate:** Betray someone, apologize, and they forgive you a turn later because nothing is tracking the betrayal as a persistent fact.
-- **Emotional Drift:** Emotional state is either frozen into a meaningless number (`trust: 40`) or handed to the model to grade itself, producing drifting, arbitrary values.
+- **Stat Drift:** Statistical attributes are either frozen into a meaningless number (`trust: 40`) or handed to the model to grade itself, producing drifting, arbitrary values.
 - **World Rot:** The world state slowly contradicts itself because the model has no structured place to keep it. The locked door is open, then locked, then never existed.
-- **Everyone Is One Person:** Every character shares one context, so every character shares one mind. They can't genuinely surprise each other, lie to each other, or know different things — they're sock puppets on the same hand.
+- **Everyone Is One Person:** Every character shares one context, so every character shares one mind. They can't genuinely surprise each other, lie to each other, or know different things. They're sock puppets on the hands of one puppetmaster.
 
-The root cause is the same in every case: the model is being asked to be the database, the physics engine, the referee, and the whole cast simultaneously — inside a context window that forgets, blends, and leaks.
+The model should not be the database, the physics engine and the whole cast simultaneously inside a sliding context window.
 
 ## The Omnia Solution
 
-Omnia answers every one of these failures with the same move: pull the thing that has to stay consistent out of the model and into structured, queryable, code-controlled state.
+Omnia answers every one of these failures with the same move: **pull the thing that has to stay consistent out of the model** and into structured, queryable, code-controlled state.
 
-- **World State:** Lives in a SQLite database, not in a context window. It cannot drift, because nothing regenerates it — it only changes through validated deltas.
+- **World State:** Lives in a DB, not a context window. It cannot drift, because nothing regenerates it. The world state only changes through validated deltas.
 - **Actions:** Actions are proposals (Intents) that engine code validates and applies; they are never direct edits the model makes to the world. The model proposes; deterministic code disposes.
-- **Epistemic Privacy:** Knowledge, memory, and emotion are modeled per character and kept partial on purpose. A character literally cannot reach for what it has not earned the right to know — the secret is not in its prompt, so there is nothing to jailbreak out of it.
+- **Epistemic Privacy:** Knowledge, memory, and emotion are modeled per character and kept partial on purpose. A character literally cannot reach for what it has not earned the right to know. The secret is not in its prompt, so there is **nothing to jailbreak out of it**.
 
-## What This Buys You
+## What this buys you
 
-The payoff is scenario complexity that uni-agent systems structurally cannot represent, no matter how good the model gets:
+<p align="center">
+  <img src="./web/docs/src/assets/img/features.webp" />
+</p>
+
+The payoff is scenario complexity that **uni-agent systems structurally cannot represent, no matter how good the model gets**.
 
 - **Real secrets, real dramatic irony.** One NPC knows the sword is cursed; the other does not. This holds for hundreds of turns not because the model is disciplined, but because the second NPC's prompts are constructed from an attribute set that simply does not contain the fact. Leaking it would require the engine to have handed it over.
-- **Genuine deception between characters.** Because each character acts from its own bounded view, characters can lie to each other — and be believed — with the truth intact in the world state. A con game, a mole in the party, an unreliable ally: these are queries over who-knows-what, not prompt acrobatics.
-- **Betrayal that stays betrayed.** Events persist as per-observer memory entries with outcomes. An apology adds a memory; it does not delete one.
-- **Divergent accounts of the same event.** Two witnesses to the same scene hold two different buffer entries, filtered through their own aliases and vantage points. Ask them separately what happened and you get testimony, not a transcript.
-- **Identity as information.** Characters refer to each other through subjective alias maps ("the hooded figure" vs. "Bob"). Recognizing someone, being recognized, or staying anonymous are all mechanical states — a masked stranger is a masked stranger until the engine says otherwise.
-- **A physics referee that can say no.** "I pick the lock with a hairpin" is validated against world state by the Architect before anything changes. Failure is a recorded outcome the character remembers, not a narrative the model politely retconned.
-- **Time that behaves.** A world clock advances by validated, per-action deltas, and memory is recalled with psychologically natural phrasing ("earlier today, in the afternoon" — not a timestamp). Long timelines stay coherent because time is data, not vibes.
+- **Genuine deception between characters.** Because each entity acts from its own bounded view, they can lie to each other and be believed; with the truth intact in the world state. A con game, a mole in the party, an unreliable ally: these are queries over "who knows what" and not prompt engineering.
+- Events persist as per observer memory entries with outcomes. An apology adds a memory; it does not delete one.
+- **Divergent accounts of the same event.** Two witnesses to the same scene hold two different buffer entries, filtered through their own aliases and vantage points. Ask them separately what happened and you get varied testimony.
+- **A physics referee that can say no.** `I pick the lock with a hairpin` is validated against world state by the Architect before anything changes. Failure is a recorded outcome the entity remembers.
+- **Time that behaves.** A world clock advances by validated, per-action deltas, and memory is recalled with psychologically natural phrasing ("earlier today, in the afternoon" — not a timestamp). `TimeOfDay` is deterministic and not based on vibes.
+- **No main character syndrome.** The simulation runs fully autonomously or you act on behalf of any entity. You, the player, are just an entity in the data model, not structurally elevated above the rest of the world. The world can exist without the you.
+- **Granular model control.** Omnia is not locked to a single LLM. You can pick a different model for **every individual step that calls the LLM**. Narration prose that demands richer reasoning gets a frontier model; quick intent decoding or other generators get smaller ones or a model running entirely on your local machine.
 
-The general principle: **anything that must remain true is state; the model only ever supplies behavior.** That division of labor is what lets the cast, the secrets, and the timeline scale without the fiction collapsing.
+The general principle: **anything that must remain true is state; the model only ever supplies behavior.**
+
+## Installation
+
+### Prerequisites
+
+- [Node.js](https://nodejs.org/) (v20+ recommended)
+- [pnpm](https://pnpm.io/) (v9+ recommended)
+- An API key for Google Gemini (`GOOGLE_API_KEY` environment variable), or configured settings via the GUI.
+
+### Installation
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/sortedcord/omnia-consolidated.git
+   cd omnia-consolidated
+   ```
+2. Install dependencies:
+   ```bash
+   pnpm install
+   ```
+
+### Running the Web GUI
+
+To launch the Next.js development server for the GUI dashboard:
+
+```bash
+pnpm dev:gui
+```
+
+Access the application locally at `http://localhost:3000`.
 
 ## Core Architecture
 
 ### The Actor Agent
 
-Each character takes turns through an **Actor Agent** that receives a strictly epistemically-bounded prompt: its own attributes (public, plus private ones explicitly granted to itself), its subjective memory buffer, the entities co-present at its location, and the current moment. Nothing else. The actor responds with free narrative prose — what the character does, says, or _thinks_.
+Each entity takes turns through an **Actor Agent** that receives a strictly epistemically bounded prompt: its own attributes (public, plus private ones explicitly granted to itself), its subjective memory buffer, the entities co-present at its location, and the current moment. Nothing else. The actor responds with free narrative prose.
 
 Prose is decoded into typed intents:
 
@@ -51,30 +99,30 @@ Prose is decoded into typed intents:
 - **`action`** — a physical act, subject to validation.
 - **`monologue`** — an inner thought. No one else perceives it, it bypasses validation entirely, and it is written straight into the character's private memory.
 
-Not every turn needs an outward act; a character may simply think. This is what makes characters feel inhabited rather than reactive — and it produces a durable, queryable record of each character's private reasoning (see [Research Instrument](#a-research-instrument-model-psychology-in-fiction) below).
+Not every turn needs an outward act; a character may simply think. This is what makes characters feel inhabited rather than reactive and it produces a queryable record of each character's private reasoning (see [Research Instrument](#a-research-instrument-model-psychology-in-fiction) below).
 
-The prose generator is pluggable (`IActorProseGenerator`): the same turn loop runs an LLM-driven NPC or a human at a CLI prompt, identically bounded by what their character knows.
+The prose generator is pluggable (`IActorProseGenerator`): the same turn loop runs an LLM driven NPC or a human, identically bounded by what their character knows. (This is what eliminates Main Character Syndrome)
 
 ### Intents & The World Architect
 
-An action becomes an **Intent** — a cheap, declarative, allowed-to-be-wrong proposal. Intents route to the **World Architect**, which validates them against the objective world state (dialogue is exempt; monologue never even arrives) and generates structured deltas — starting with time advancement — that deterministic code applies after strict schema (Zod) validation. The model proposes a change; it never touches the database.
+An action becomes an **Intent** which is a simple proposal that is _allowed to be wrong_. Intents route to the **World Architect**, which validates them against the objective world state and generates structured deltas like time advancement, attribute change, etc. This deterministic code applies after strict schema (Zod) validation. The model never touches the DB.
 
-This is the load-bearing wall. Because every mutation flows through one validated chokepoint, the world cannot rot: there is no second copy of reality inside a context window to fall out of sync.
+Because every mutation flows through one validated chokepoint, the world cannot rot: there is no second copy of reality inside a context window to fall out of sync.
 
-### Attribute-Level Privacy
+### Attribute Level Privacy
 
-Every entity, item, and location is an attribute bag. Each attribute carries its own visibility (`PUBLIC` or `PRIVATE`) with an explicit access list. "The sword is cursed" is a private attribute checked in code, not a rule the model is politely asked to honor. Privacy lives at the level of the fact, not the entity — a character can be publicly a blacksmith and privately a spy, and even facts about _itself_ are hidden from it unless explicitly granted (amnesia, repression, and unwitting sleeper agents come free with the model).
+Every entity, item, and location is an _attribute bag_. Each attribute carries its own visibility (`PUBLIC` or `PRIVATE`) with an explicit access list. "The sword is cursed" is a private attribute checked in code, not a rule the model is politely asked to honor. Privacy lives at the level of the fact, not the entity. A character can be publicly a blacksmith and privately a spy, and even facts about _itself_ are hidden from it unless explicitly granted (amnesia, repression, and unwitting sleeper agents come free with the model).
 
 The dividend: **prompt-injection-proof secrets.** There is no instruction to override because the information was never serialized into the prompt. Epistemic privacy turns "the model shouldn't say this" (hard, unreliable) into "the model doesn't know this" (trivial, absolute).
 
 ### Spatial Perception
 
-Space is a graph: `world → region → location → point of interest`, connected by portals with sound and vision propagation values. When something happens, it bubbles outward. There are no coordinates, no pathfinding, no collision geometry — a narrative engine doesn't need a tactical simulation, and a discrete graph is sufficient. Today actors perceive co-located entities and their location's visible attributes; portal-propagated perception is on the roadmap.
+Space is a graph: `world → region → location → point of interest`, connected by portals with sound and vision propagation values. When something happens, it bubbles outward. There are no coordinates, no pathfinding, no collision geometry — a narrative engine doesn't need a tactical simulation, and a discrete graph is sufficient. Today actors perceive co-located entities and their location's visible attributes; portal propagated perception is on the roadmap.
 
 ### Memory Tiers
 
-- **Verbatim Buffer (implemented):** Per-character subjective event log. Every entry is stored from the owner's perspective — actors resolved through the owner's alias map, outcomes attached — and recalled with naturalized time phrasing.
-- **Vector Archive (planned):** Summarized, embedded memory entries for semantic retrieval, keeping verbatim quotes only for high-salience lines.
+- **Verbatim Buffer (implemented):** Per-character subjective event log. Every entry is stored from the owner's perspective actors resolved through the owner's alias map, outcomes attached — and recalled with naturalized time phrasing.
+- **Vector Archive (implemented):** Summarized, embedded memory entries for semantic retrieval, keeping verbatim quotes only for high-salience lines.
 - **Dossier (planned):** Each observer's subjective beliefs about another character.
 
 Memory is per-character on purpose: recall is testimony from a vantage point, which is what makes interrogating two witnesses interesting.
@@ -83,20 +131,24 @@ Memory is per-character on purpose: recall is testimony from a vantage point, wh
 
 Rather than a scalar the model drifts, every significant interaction becomes a ledger entry with an affect vector across OCC-derived dimensions (plus arousal, dominance, and social drive). The model judges a single moment; deterministic code aggregates the ledger over time with decay and attention weighting. A character can be simultaneously furious about one thing and grateful for another, and an apology does not silently erase a betrayal.
 
+This however is something that I haven't implementing or plan to implement anytime soon. The mathematical models described in NLAVS is still very abstract and subject to a lot of changes. CAA and RepE is still cutting edge research that I'm still reading papers about.
+
+Omnia might get an affect vector system however, it's going to be more simplistic than what the NLAVS proposal scribbles down.
+
 ## A Research Instrument: Model Psychology in Fiction
 
-Omnia's architecture doubles as an apparatus for studying how language models behave _as characters_ under controlled epistemic conditions — something uni-agent setups cannot do, because they can neither control what the model knows nor observe what it withholds.
+Omnia's architecture doubles as an apparatus for studying how language models behave _as characters_ under controlled epistemic conditions.
 
-- **A window into private reasoning.** Monologue intents are the model's in-character thoughts: unperceived by other agents, exempt from validation, but durably logged. You can directly compare what a character _thinks_ against what it _says and does_ — measuring deception, self-consistency, motivated reasoning, or the gap between private appraisal and public behavior.
-- **Knowledge as an experimental variable.** Attribute ACLs let you administer information with precision: give one agent a fact, withhold it from another, and observe propagation, inference, and leakage through dialogue alone. Secret-keeping stops being anecdotal and becomes testable — _provably_, since the engine logs exactly what each agent was ever shown.
-- **Controlled, reproducible conditions.** A scenario is a JSON file; a run is a SQLite database. Identical initial conditions, swappable model providers behind one interface (`ILLMProvider`), and a deterministic mock for baselines. Rerun the white-room experiment a hundred times, vary one attribute, and diff the transcripts.
-- **Multi-agent social dynamics with ground truth.** Because objective world state exists independently of any agent's beliefs, you can score agents' beliefs and claims against reality — hallucination, confabulation, and social conformity become measurable quantities rather than impressions.
+- **A window into private reasoning.** Monologue intents are the model's in character thoughts: unperceived by other agents, exempt from validation, but durably logged. You can directly compare what a character _thinks_ against what it _says and does_: measuring deception, self-consistency, motivated reasoning, etc.
+- **Knowledge as an experimental variable.** Attribute ACLs let you administer information with precision: give one agent a fact, withhold it from another, and observe propagation, inference, and leakage through dialogue alone.
+- **Controlled, reproducible conditions.** A scenario is a JSON file (like a template); a run is a SQLite database. Identical initial conditions, swappable model providers behind one interface (`ILLMProvider`), and a deterministic mock for baselines. Rerun the scenario a hundred times, vary one attribute, and diff the transcripts.
+- **Multi agent social dynamics with ground truth.** Because objective world state exists independently of any agent's beliefs, you can score agents' beliefs and claims against reality like hallucination. Even social conformity become measurable quantities rather than impressions or _✨ vibes_.
 
-The bundled demo scenario is exactly this: [`talking-room`](./content/demo/scenarios/talking-room.json) places two memory-wiped subjects in a featureless white room — each knowing their own name but not the other's — and observes what they do. It runs today, via the CLI, with a human optionally playing either subject.
+The bundled demo scenario is exactly this: [`talking-room`](./content/demo/scenarios/talking-room.json) places two memory wiped subjects in a featureless white room. Each know their own name but not the other's. Observe what they do. It runs today, ~~via the CLI, with a human optionally playing either subject~~ via a GUI which is in rapid development. You can let it run forever autonomously or roleplay as either character.
 
 ## Project Status: What `v0` Means
 
-The finish line for the first milestone is small on purpose.
+The finish line for the first milestone is small on purpose. `v0` is almost on the horizon. All assigned systems for `v0` have been implemented and tested throughout.
 
 **Currently Implemented:**
 
@@ -111,16 +163,14 @@ The finish line for the first milestone is small on purpose.
 **[The `v0` Milestone:](https://github.com/sortedcord/omnia-consolidated/milestone/1)**
 
 - [x] Two hand-authored NPCs live in one location, playable via CLI.
-- [ ] Each has buffer and vector-archive memory and recalls something said a few turns earlier. _(buffer: done; vector archive: not started)_
-- [ ] One NPC knows a fact the other does not and, provably by testing, will not leak it.
+- [x] Each has buffer and vector-archive memory and recalls something said a few turns earlier.
+- [x] One NPC knows a fact the other does not and, provably by testing, will not leak it.
 - [x] The Architect processes at least one non-trivial action per exchange with a visible state change.
 - [x] The whole thing persists to a SQLite file and reloads identically.
 
-**Explicitly out of scope for `v0`:** Constraint validators (beyond basic sense-checking), multi-location perception, affect-vector decay math, the Dossier, whims/simulation tiering, the delta ledger, and UI beyond CLI.
-
 ### A Note on Tech Debt
 
-The Architect currently trusts an LLM's judgement about reasonable consequences rather than validating every change against declarative constraints. A general constraint solver is worth building eventually, but building it before anything is playable is foundational perfectionism that produces beautiful architecture and no game. `v0` keeps the single-call Architect on purpose.
+The Architect currently trusts an LLM's judgement about reasonable consequences rather than validating every change against declarative constraints. A general constraint solver is worth building eventually, but building it before anything is playable is foundational perfectionism that produces beautiful architecture and no framework. `v0` keeps the single-call Architect on purpose.
 
 ## Repository Layout
 
@@ -138,17 +188,16 @@ omnia/
     llm/         ILLMProvider interface plus Gemini and deterministic mock implementations
     scenario/    scenario JSON schema and loader (JSON → SQLite)
   apps/
-    cli/         the playable loop (human or LLM actors, --scenario / --play flags)
+    gui/         Next.js Web GUI dashboard and simulation runner
   content/
     demo/              bundled scenarios (talking-room)
   tests/
     integration/ cross-package tests against a mocked LLM
     evals/       deliberate real-API evaluation runs
-  docs/          Astro documentation site (→ web/docs/)
+  web/
+    docs/        Astro documentation site
 ```
 
-_The engine core deliberately knows nothing about domain content (stats, traits, genres). Scenarios are plain JSON the loader ingests; what an attribute means is the scenario's business, not the engine's._
-
 ## Roadmap (Build Order after `v0`)
 
 1. Vector-archive memory and retrieval (closing out the `v0` memory milestone).

apps/cli/package.json

@@ -1,21 +0,0 @@
-{
-  "name": "@omnia/cli",
-  "version": "0.0.0",
-  "private": true,
-  "type": "module",
-  "exports": {
-    ".": "./dist/index.js"
-  },
-  "dependencies": {
-    "@omnia/core": "workspace:*",
-    "@omnia/spatial": "workspace:*",
-    "@omnia/memory": "workspace:*",
-    "@omnia/intent": "workspace:*",
-    "@omnia/architect": "workspace:*",
-    "@omnia/actor": "workspace:*",
-    "@omnia/llm": "workspace:*",
-    "@omnia/scenario": "workspace:*",
-    "better-sqlite3": "^12.11.1",
-    "dotenv": "^17.4.2"
-  }
-}

apps/cli/src/index.ts

@@ -1,461 +0,0 @@
-import dotenv from "dotenv";
-import fs from "fs";
-import path from "path";
-import readline from "readline";
-import Database from "better-sqlite3";
-import { WorldState, SQLiteRepository } from "@omnia/core";
-import { BufferRepository } from "@omnia/memory";
-import { Architect, AliasDeltaGenerator } from "@omnia/architect";
-import {
-  ActorAgent,
-  ActorPromptBuilder,
-  IActorProseGenerator,
-  buildBufferEntryForIntent,
-} from "@omnia/actor";
-import { GeminiProvider } from "@omnia/llm";
-import { ScenarioLoader } from "@omnia/scenario";
-
-// Load environment variables
-dotenv.config();
-
-class CLIProseGenerator implements IActorProseGenerator {
-  async generate(
-    entityId: string,
-    systemPrompt: string,
-    userContext: string,
-  ): Promise<string> {
-    console.log(
-      "\n================================================================================",
-    );
-    console.log(`YOUR TURN: Playing as character "${entityId}"`);
-    console.log(
-      "================================================================================",
-    );
-    console.log(userContext);
-    console.log(
-      "================================================================================",
-    );
-
-    const rl = readline.createInterface({
-      input: process.stdin,
-      output: process.stdout,
-    });
-
-    return new Promise<string>((resolve) => {
-      rl.question(
-        "\nDescribe what your character does, says, or thinks (or type 'exit' to quit):\n> ",
-        (answer) => {
-          rl.close();
-          const trimmed = answer.trim();
-          if (trimmed.toLowerCase() === "exit") {
-            console.log("\nExiting simulation. Goodbye!");
-            process.exit(0);
-          }
-          resolve(trimmed);
-        },
-      );
-    });
-  }
-}
-
-/**
- * Checks for co-located entities who do not have subjective aliases for each other,
- * and calls the AliasDeltaGenerator to synthesize names based on visible attributes.
- */
-async function runAliasResolution(
-  worldState: WorldState,
-  aliasGenerator: AliasDeltaGenerator,
-  coreRepo: SQLiteRepository,
-): Promise<void> {
-  const entities = Array.from(worldState.entities.values());
-  for (const viewer of entities) {
-    if (!viewer.locationId) continue;
-
-    for (const target of entities) {
-      if (viewer.id === target.id) continue;
-      if (target.locationId === viewer.locationId) {
-        if (!viewer.aliases.has(target.id)) {
-          const alias = await aliasGenerator.generate(viewer, target);
-          viewer.aliases.set(target.id, alias);
-          console.log(
-            `\n[Alias Resolved] "${viewer.id}" sees "${target.id}" -> alias: "${alias}"`,
-          );
-          // Save the viewer state with the new alias
-          coreRepo.saveEntity(viewer, worldState.id);
-        }
-      }
-    }
-  }
-}
-
-async function main() {
-  const args = process.argv.slice(2);
-
-  const logFileIndex = args.indexOf("--log-file");
-  let logStream: fs.WriteStream | undefined;
-  if (logFileIndex !== -1 && args[logFileIndex + 1]) {
-    const logFilePath = path.resolve(args[logFileIndex + 1]);
-    logStream = fs.createWriteStream(logFilePath, {
-      flags: "w",
-      encoding: "utf-8",
-    });
-
-    // Monkeypatch console.log
-    const originalLog = console.log;
-    console.log = (...messageArgs: unknown[]) => {
-      originalLog(...messageArgs);
-      const text =
-        messageArgs
-          .map((arg) => {
-            if (typeof arg === "object" && arg !== null) {
-              try {
-                return JSON.stringify(arg, null, 2);
-              } catch {
-                return String(arg);
-              }
-            }
-            return String(arg);
-          })
-          .join(" ") + "\n";
-      logStream?.write(text);
-    };
-
-    // Monkeypatch console.error
-    const originalError = console.error;
-    console.error = (...messageArgs: unknown[]) => {
-      originalError(...messageArgs);
-      const text =
-        messageArgs
-          .map((arg) => {
-            if (typeof arg === "object" && arg !== null) {
-              try {
-                return JSON.stringify(arg, null, 2);
-              } catch {
-                return String(arg);
-              }
-            }
-            return String(arg);
-          })
-          .join(" ") + "\n";
-      logStream?.write("[ERROR] " + text);
-    };
-
-    process.on("exit", () => {
-      logStream?.end();
-    });
-  }
-  const scenarioArgIndex = args.indexOf("--scenario");
-  const scenarioPath =
-    scenarioArgIndex !== -1
-      ? args[scenarioArgIndex + 1]
-      : "content/demo/scenarios/talking-room.json";
-
-  const playArgIndex = args.indexOf("--play");
-  const playEntityId = playArgIndex !== -1 ? args[playArgIndex + 1] : undefined;
-
-  const dbPath = path.resolve("./omnia.db");
-  console.log(`Initializing SQLite database at: ${dbPath}`);
-
-  const db = new Database(dbPath);
-  const coreRepo = new SQLiteRepository(db);
-  const bufferRepo = new BufferRepository(db);
-  const loader = new ScenarioLoader(coreRepo, bufferRepo);
-
-  // 1. Read Scenario JSON file
-  if (!fs.existsSync(scenarioPath)) {
-    console.error(
-      `Error: Scenario template file not found at: ${scenarioPath}`,
-    );
-    process.exit(1);
-  }
-
-  console.log(`Loading scenario template from: ${scenarioPath}`);
-  const scenarioJson = JSON.parse(fs.readFileSync(scenarioPath, "utf-8"));
-
-  // 2. Initialize World Instance
-  const worldInstanceId = `run-${Date.now()}`;
-  console.log(`Initializing live world instance: ${worldInstanceId}`);
-  await loader.initializeWorld(scenarioJson, worldInstanceId);
-
-  // Load the running world state
-  const worldState = coreRepo.loadWorldState(worldInstanceId);
-  if (!worldState) {
-    console.error(
-      `Error: Failed to load initialized world state: ${worldInstanceId}`,
-    );
-    process.exit(1);
-  }
-
-  // Resolve playEntityId to actual entity UUID if name/ID substring matches
-  let resolvedPlayEntityId: string | undefined = undefined;
-  if (playEntityId) {
-    let matched = worldState.getEntity(playEntityId);
-    if (!matched) {
-      for (const ent of worldState.entities.values()) {
-        const nameAttr = ent.attributes.get("name")?.getValue();
-        if (nameAttr && nameAttr.toLowerCase() === playEntityId.toLowerCase()) {
-          matched = ent;
-          break;
-        }
-      }
-    }
-    if (!matched) {
-      for (const ent of worldState.entities.values()) {
-        const nameAttr = ent.attributes.get("name")?.getValue();
-        if (
-          (nameAttr && nameAttr.toLowerCase().includes(playEntityId.toLowerCase())) ||
-          ent.id.toLowerCase().includes(playEntityId.toLowerCase())
-        ) {
-          matched = ent;
-          break;
-        }
-      }
-    }
-
-    if (matched) {
-      resolvedPlayEntityId = matched.id;
-      console.log(`Resolved player character "${playEntityId}" to entity ID "${matched.id}" (Name: ${matched.attributes.get("name")?.getValue() || "Unnamed"})`);
-    } else {
-      console.warn(`Warning: Could not find any entity matching "${playEntityId}". Running in observer mode.`);
-    }
-  }
-
-  // 3. Ensure API Key exists if we are running LLMs
-  const apiKey = process.env.GOOGLE_API_KEY;
-  if (!apiKey) {
-    console.error("Error: GOOGLE_API_KEY environment variable is missing.");
-    console.error(
-      "Please provide it in your .env file to enable LLM generators and decoders.",
-    );
-    process.exit(1);
-  }
-
-  const llmProvider = new GeminiProvider(apiKey);
-  const architect = new Architect(llmProvider, coreRepo);
-  const aliasGenerator = new AliasDeltaGenerator(llmProvider);
-
-  console.log(
-    "\n================================================================================",
-  );
-  console.log(`SIMULATION STARTED: "${scenarioJson.name}"`);
-  console.log(`Description: ${scenarioJson.description}`);
-  if (resolvedPlayEntityId) {
-    const matched = worldState.getEntity(resolvedPlayEntityId);
-    console.log(`Player Role: Controlling entity "${resolvedPlayEntityId}" (Name: ${matched?.attributes.get("name")?.getValue() || "Unnamed"})`);
-  } else {
-    console.log("Player Role: Observing fully autonomous NPC run");
-  }
-  console.log(
-    "================================================================================",
-  );
-
-  const isVerbose = args.includes("--verbose");
-
-  let turnCount = 1;
-  const maxTurns = 20; // safe loop breaker
-
-  while (turnCount <= maxTurns) {
-    console.log(
-      `\n\n--- TURN ${turnCount} (World Time: ${worldState.clock.get().toISOString()}) ---`,
-    );
-
-    // Reload world state from database to ensure fresh DB sync
-    const currentWorldState = coreRepo.loadWorldState(worldInstanceId);
-    if (!currentWorldState) {
-      console.error("Error: Synced world state lost.");
-      process.exit(1);
-    }
-
-    // Auto-resolve aliases for co-located entities who don't know each other yet
-    await runAliasResolution(currentWorldState, aliasGenerator, coreRepo);
-
-    const entities = Array.from(currentWorldState.entities.values());
-
-    for (const entity of entities) {
-      // 1. Determine the ActorAgent generator: CLI input for player, LLM for NPCs
-      const isPlayer = resolvedPlayEntityId && entity.id === resolvedPlayEntityId;
-      const generator = isPlayer ? new CLIProseGenerator() : undefined;
-
-      const agent = new ActorAgent(llmProvider, bufferRepo, 20, generator);
-
-      // Verbose mode: Output the generated prompt builder context before generation
-      if (isVerbose) {
-        const promptBuilder = new ActorPromptBuilder(bufferRepo, 20);
-        const { systemPrompt, userContext } = promptBuilder.build(
-          currentWorldState,
-          entity,
-        );
-        console.log(`\n[VERBOSE] Assembled Prompts for "${entity.id}":`);
-        console.log("\n--- SYSTEM PROMPT ---");
-        console.log(systemPrompt);
-        console.log("\n--- USER CONTEXT ---");
-        console.log(userContext);
-        console.log("\n--- CONTEXT BREAKDOWN ---");
-
-        const userSections = userContext.split("\n\n");
-        const momentSection =
-          userSections.find((s) => s.startsWith("=== CURRENT MOMENT ===")) ||
-          "";
-        const worldSection =
-          userSections.find((s) =>
-            s.startsWith("=== THE WORLD AS YOU PERCEIVE IT ==="),
-          ) || "";
-        const memorySection =
-          userSections.find((s) =>
-            s.startsWith("=== YOUR RECENT MEMORY ==="),
-          ) || "";
-
-        const systemChars = systemPrompt.length;
-        const momentChars = momentSection.length;
-        const worldChars = worldSection.length;
-        const memoryChars = memorySection.length;
-        const totalChars = systemChars + userContext.length;
-
-        const estTokens = (chars: number) => Math.ceil(chars / 4);
-
-        console.log(
-          `  ├─ System Instructions:   ${systemChars.toLocaleString()} chars (~${estTokens(systemChars)} tokens)`,
-        );
-        console.log(
-          `  ├─ Current Moment Context: ${momentChars.toLocaleString()} chars (~${estTokens(momentChars)} tokens)`,
-        );
-        console.log(
-          `  ├─ World Perception:      ${worldChars.toLocaleString()} chars (~${estTokens(worldChars)} tokens)`,
-        );
-        console.log(
-          `  ├─ Recent Memory Buffer:  ${memoryChars.toLocaleString()} chars (~${estTokens(memoryChars)} tokens)`,
-        );
-        console.log(
-          `  └─ TOTAL ESTIMATED INPUT: ${totalChars.toLocaleString()} chars (~${estTokens(totalChars)} tokens)`,
-        );
-        console.log(
-          "--------------------------------------------------------------------------------",
-        );
-      }
-
-      if (!isPlayer) {
-        console.log(`\n[${entity.id}] is thinking...`);
-      }
-
-      // 2. Execute character turn
-      const turnResult = await agent.act(currentWorldState, entity);
-
-      if (!isPlayer) {
-        console.log(`\n[${entity.id}]: ${turnResult.narrativeProse}`);
-      } else {
-        console.log(`\n[You]: ${turnResult.narrativeProse}`);
-      }
-
-      // Verbose mode: Output decoded intent structures
-      if (isVerbose) {
-        console.log(`\n[VERBOSE] Decoded Intents from Prose:`);
-        console.log(JSON.stringify(turnResult.intents.intents, null, 2));
-        console.log(
-          "--------------------------------------------------------------------------------",
-        );
-      }
-
-      // 3. Process each generated intent sequence through physics and memory
-      for (const intent of turnResult.intents.intents) {
-        const outcome = await architect.processIntent(
-          currentWorldState,
-          intent,
-        );
-        const timestamp = currentWorldState.clock.get().toISOString();
-
-        // Verbose mode: Output architect evaluation
-        if (isVerbose) {
-          console.log(`\n[VERBOSE] Architect Intent Processing:`);
-          console.log(`  Type: ${intent.type}`);
-          console.log(`  Description: "${intent.description}"`);
-          if (intent.type === "monologue") {
-            console.log("  Validation: Bypassed (monologue)");
-          } else {
-            console.log(
-              `  Validation Result: isValid = ${outcome.isValid}, reason = "${outcome.reason}"`,
-            );
-            if (outcome.timeDelta) {
-              console.log(
-                `  Clock Delta: +${outcome.timeDelta.minutesToAdvance} min (${outcome.timeDelta.explanation})`,
-              );
-            }
-          }
-          console.log(
-            "--------------------------------------------------------------------------------",
-          );
-        }
-
-        // Save actor's subjective memory
-        const actorEntry = buildBufferEntryForIntent(
-          intent,
-          timestamp,
-          entity.locationId,
-        );
-        if (intent.type === "action") {
-          actorEntry.outcome = {
-            isValid: outcome.isValid,
-            reason: outcome.reason,
-          };
-        }
-        bufferRepo.save(actorEntry);
-
-        // Propagate public memories (dialogue/actions) to co-located observers
-        if (
-          entity.locationId &&
-          (intent.type === "dialogue" || intent.type === "action")
-        ) {
-          for (const other of currentWorldState.entities.values()) {
-            if (
-              other.id !== entity.id &&
-              other.locationId === entity.locationId
-            ) {
-              const observerEntry = buildBufferEntryForIntent(
-                intent,
-                timestamp,
-                entity.locationId,
-              );
-              if (intent.type === "action") {
-                observerEntry.outcome = {
-                  isValid: outcome.isValid,
-                  reason: outcome.reason,
-                };
-              }
-              bufferRepo.save({
-                ...observerEntry,
-                ownerId: other.id,
-              });
-            }
-          }
-        }
-
-        // Print formatted logs
-        if (intent.type === "monologue") {
-          if (isPlayer) {
-            console.log(`  (Thought processed: "${intent.description}")`);
-          }
-        } else if (intent.type === "dialogue") {
-          console.log(
-            `  (Dialogue spoken: spoken to ${intent.targetIds.join(", ") || "someone"})`,
-          );
-        } else {
-          console.log(
-            `  (Action result: ${outcome.isValid ? "Success" : `Failed - ${outcome.reason}`})`,
-          );
-        }
-      }
-
-      // 4. Save synced world state to repository
-      coreRepo.saveWorldState(currentWorldState);
-    }
-
-    turnCount++;
-  }
-
-  console.log("\nSimulation execution limit reached. Goodbye!");
-  db.close();
-}
-
-main().catch((err) => {
-  console.error("Simulation run aborted due to error:", err);
-  process.exit(1);
-});

apps/cli/tsconfig.json

@@ -1,18 +0,0 @@
-{
-  "extends": "../../tsconfig.base.json",
-  "compilerOptions": {
-    "rootDir": "src",
-    "outDir": "dist"
-  },
-  "include": ["src"],
-  "references": [
-    { "path": "../../packages/core" },
-    { "path": "../../packages/spatial" },
-    { "path": "../../packages/memory" },
-    { "path": "../../packages/intent" },
-    { "path": "../../packages/architect" },
-    { "path": "../../packages/actor" },
-    { "path": "../../packages/llm" },
-    { "path": "../../packages/scenario" }
-  ]
-}

apps/gui/components.json

@@ -0,0 +1,24 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "default",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "registries": {
+    "@retroui": "https://retroui.dev/r/radix/{name}.json",
+    "@retroui-base": "https://retroui.dev/r/base/{name}.json"
+  }
+}

apps/gui/next-env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/types/routes.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

apps/gui/next.config.ts

@@ -0,0 +1,30 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  transpilePackages: [
+    "@omnia/core",
+    "@omnia/llm",
+    "@omnia/intent",
+    "@omnia/architect",
+    "@omnia/actor",
+    "@omnia/memory",
+    "@omnia/spatial",
+    "@omnia/scenario",
+  ],
+  serverExternalPackages: ["better-sqlite3"],
+  allowedDevOrigins: ["192.168.0.18", "localhost", "127.0.0.1"],
+  experimental: {
+    serverActions: {
+      allowedOrigins: [
+        "192.168.0.18:3000",
+        "192.168.0.18:3001",
+        "192.168.0.18:3002",
+        "localhost:3000",
+        "localhost:3001",
+        "localhost:3002",
+      ],
+    },
+  },
+};
+
+export default nextConfig;

apps/gui/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "@omnia/gui",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@base-ui/react": "^1.6.0",
+    "@omnia/actor": "workspace:*",
+    "@omnia/architect": "workspace:*",
+    "@omnia/core": "workspace:*",
+    "@omnia/intent": "workspace:*",
+    "@omnia/llm": "workspace:*",
+    "@omnia/memory": "workspace:*",
+    "@omnia/scenario": "workspace:*",
+    "@omnia/spatial": "workspace:*",
+    "@radix-ui/react-dialog": "^1.1.19",
+    "@radix-ui/react-dropdown-menu": "^2.1.20",
+    "@radix-ui/react-separator": "^1.1.11",
+    "@radix-ui/react-slot": "^1.3.0",
+    "@radix-ui/react-tooltip": "^1.2.12",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "dotenv": "^17.4.2",
+    "lucide-react": "^1.24.0",
+    "next": "^16.2.10",
+    "radix-ui": "^1.6.2",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0",
+    "tailwind-merge": "^3.6.0",
+    "tailwindcss-animate": "^1.0.7"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.3.2",
+    "@types/node": "^26.1.0",
+    "@types/react": "^19.2.0",
+    "@types/react-dom": "^19.2.0",
+    "autoprefixer": "^10.5.2",
+    "postcss": "^8.5.16",
+    "shadcn": "^4.13.0",
+    "tailwindcss": "^4.3.2",
+    "typescript": "^6.0.3"
+  }
+}

apps/gui/postcss.config.mjs

@@ -0,0 +1,7 @@
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;

apps/gui/src/app/actions.ts

@@ -0,0 +1,355 @@
+"use server";
+
+import path from "path";
+import fs from "fs";
+import { simulationManager } from "@/lib/simulation";
+import type { SimSnapshot } from "@/lib/simulation";
+import {
+  ProviderManager,
+  ModelProviderInstance,
+  AVAILABLE_PROVIDERS,
+  ModelProviderMeta,
+} from "@omnia/llm";
+import { ScenarioSchema } from "@omnia/scenario";
+
+function resolveScenarioPath(relative: string): string {
+  const cwd = process.cwd();
+  const candidates = [
+    path.resolve(cwd, relative),
+    path.resolve(cwd, "content/demo/scenarios", relative),
+    path.resolve(cwd, "../../", relative),
+    path.resolve(cwd, "../../content/demo/scenarios", relative),
+  ];
+  for (const c of candidates) {
+    try {
+      if (fs.statSync(c).isFile()) return c;
+    } catch {
+      /* not found */
+    }
+  }
+  return path.resolve(cwd, relative);
+}
+
+type ActionResult =
+  { ok: true; snapshot: SimSnapshot } | { ok: false; error: string };
+
+export async function startSimulation(input: {
+  scenario?: string;
+  playEntity?: string;
+  providerInstanceId?: string;
+}): Promise<ActionResult> {
+  try {
+    const scenarioFile =
+      input.scenario || "content/demo/scenarios/talking-room.json";
+
+    const resolved = resolveScenarioPath(scenarioFile);
+    if (!fs.existsSync(resolved)) {
+      return { ok: false, error: `Scenario file not found: ${scenarioFile}` };
+    }
+
+    const snapshot = await simulationManager.create(
+      resolved,
+      input.playEntity || undefined,
+      input.providerInstanceId,
+    );
+
+    if (snapshot.status === "error") {
+      return { ok: false, error: snapshot.error || "Unknown error" };
+    }
+
+    return { ok: true, snapshot };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function stepSimulation(input: {
+  simId: string;
+}): Promise<ActionResult> {
+  try {
+    if (!input.simId) {
+      return { ok: false, error: "Missing simId" };
+    }
+
+    const snapshot = await simulationManager.step(input.simId);
+
+    if (!snapshot) {
+      return { ok: false, error: "Simulation session not found" };
+    }
+
+    if (snapshot.status === "error") {
+      return { ok: false, error: snapshot.error || "Unknown error" };
+    }
+
+    return { ok: true, snapshot };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function submitPlayerAction(input: {
+  simId: string;
+  prose: string;
+}): Promise<ActionResult> {
+  try {
+    if (!input.simId || !input.prose.trim()) {
+      return { ok: false, error: "Missing simId or prose" };
+    }
+
+    const snapshot = await simulationManager.submitPlayerAction(
+      input.simId,
+      input.prose.trim(),
+    );
+
+    if (!snapshot) {
+      return { ok: false, error: "Simulation session not found" };
+    }
+
+    if (snapshot.status === "error") {
+      return { ok: false, error: snapshot.error || "Unknown error" };
+    }
+
+    return { ok: true, snapshot };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function getConfigStatus(): Promise<{
+  apiKeySet: boolean;
+  apiKeyPreview: string;
+  model: string;
+  availableScenarios: { path: string; name: string; description: string }[];
+}> {
+  const apiKey = process.env.GOOGLE_API_KEY;
+  const scenarios: { path: string; name: string; description: string }[] = [];
+
+  const cwd = process.cwd();
+  const candidates = [
+    path.resolve(cwd, "content/demo/scenarios"),
+    path.resolve(cwd, "../../content/demo/scenarios"),
+  ];
+  let scenariosDir = "";
+  for (const c of candidates) {
+    if (fs.existsSync(c) && fs.statSync(c).isDirectory()) {
+      scenariosDir = c;
+      break;
+    }
+  }
+
+  if (scenariosDir) {
+    for (const file of fs.readdirSync(scenariosDir)) {
+      if (file.endsWith(".json")) {
+        try {
+          const fullPath = path.join(scenariosDir, file);
+          const content = JSON.parse(fs.readFileSync(fullPath, "utf-8"));
+          scenarios.push({
+            path: `content/demo/scenarios/${file}`,
+            name: content.name || file,
+            description: content.description || "",
+          });
+        } catch {
+          /* skip invalid */
+        }
+      }
+    }
+  }
+
+  return {
+    apiKeySet: !!apiKey,
+    apiKeyPreview: apiKey ? apiKey.substring(0, 10) + "..." : "NOT SET",
+    model: "gemini-2.5-flash",
+    availableScenarios: scenarios,
+  };
+}
+
+export async function listSavedSimulations(): Promise<
+  { ok: true; sessions: SimSnapshot[] } | { ok: false; error: string }
+> {
+  try {
+    const sessions = simulationManager.listSavedSessions();
+    return { ok: true, sessions };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function resumeSimulation(simId: string): Promise<ActionResult> {
+  try {
+    const snapshot = await simulationManager.load(simId);
+    if (!snapshot) {
+      return { ok: false, error: `Failed to load simulation: ${simId}` };
+    }
+    return { ok: true, snapshot };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function getScenarioEntities(
+  scenarioPath: string,
+): Promise<
+  | { ok: true; entities: { id: string; name: string }[] }
+  | { ok: false; error: string }
+> {
+  try {
+    const resolved = resolveScenarioPath(scenarioPath);
+    if (!fs.existsSync(resolved)) {
+      return { ok: false, error: `Scenario file not found: ${scenarioPath}` };
+    }
+    const content = JSON.parse(fs.readFileSync(resolved, "utf-8"));
+    const entities = (content.entities || []).map(
+      (e: { id: string; name?: string }) => ({
+        id: e.id,
+        name: e.name || e.id,
+      }),
+    );
+    return { ok: true, entities };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function deleteSimulation(
+  simId: string,
+): Promise<{ ok: true } | { ok: false; error: string }> {
+  try {
+    simulationManager.deleteSession(simId);
+    return { ok: true };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function listProviderInstances(): Promise<
+  ModelProviderInstance[]
+> {
+  return ProviderManager.list();
+}
+
+export async function createProviderInstance(
+  name: string,
+  providerName: string,
+  apiKey: string,
+  modelName?: string,
+  type: "generative" | "embedding" = "generative",
+  maxContext?: number,
+): Promise<ModelProviderInstance> {
+  return ProviderManager.create(
+    name,
+    providerName,
+    apiKey,
+    modelName,
+    type,
+    maxContext,
+  );
+}
+
+export async function deleteProviderInstance(id: string): Promise<void> {
+  ProviderManager.delete(id);
+}
+
+export async function setActiveProviderInstance(id: string): Promise<void> {
+  ProviderManager.setActive(id);
+}
+
+export async function updateProviderInstance(
+  id: string,
+  name: string,
+  providerName: string,
+  apiKey?: string,
+  modelName?: string,
+  type: "generative" | "embedding" = "generative",
+  maxContext?: number,
+): Promise<void> {
+  ProviderManager.update(
+    id,
+    name,
+    providerName,
+    apiKey,
+    modelName,
+    type,
+    maxContext,
+  );
+}
+
+export async function getProviderMappings(): Promise<Record<string, string>> {
+  return ProviderManager.getMappings();
+}
+
+export async function setProviderMapping(
+  task: string,
+  providerInstanceId: string,
+): Promise<void> {
+  ProviderManager.setMapping(task, providerInstanceId);
+}
+
+export async function getAvailableProviders(): Promise<ModelProviderMeta[]> {
+  return AVAILABLE_PROVIDERS;
+}
+
+export async function regenerateEmbeddings(
+  newProviderInstanceId?: string,
+): Promise<void> {
+  await simulationManager.regenerateAllEmbeddings(newProviderInstanceId);
+}
+
+export async function saveScenario(
+  scenario: unknown,
+): Promise<{ ok: true } | { ok: false; error: string }> {
+  try {
+    const parsed = ScenarioSchema.parse(scenario);
+    const cwd = process.cwd();
+    const dir = path.resolve(cwd, "content/demo/scenarios");
+    if (!fs.existsSync(dir)) {
+      fs.mkdirSync(dir, { recursive: true });
+    }
+    const filePath = path.join(dir, `${parsed.id}.json`);
+    fs.writeFileSync(filePath, JSON.stringify(parsed, null, 2), "utf-8");
+    return { ok: true };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}
+
+export async function loadScenarioJson(
+  scenarioPath: string,
+): Promise<{ ok: true; scenario: unknown } | { ok: false; error: string }> {
+  try {
+    const resolved = resolveScenarioPath(scenarioPath);
+    if (!fs.existsSync(resolved)) {
+      return { ok: false, error: `Scenario file not found: ${scenarioPath}` };
+    }
+    const content = JSON.parse(fs.readFileSync(resolved, "utf-8"));
+    return { ok: true, scenario: content };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : String(err),
+    };
+  }
+}

apps/gui/src/app/builder/page.tsx

@@ -0,0 +1,766 @@
+"use client";
+
+import { useEffect, useState, useMemo } from "react";
+import { useRouter } from "next/navigation";
+import {
+  SidebarProvider,
+  Sidebar,
+  SidebarContent,
+} from "@/components/ui/sidebar";
+import {
+  Menubar,
+  MenubarMenu,
+  MenubarTrigger,
+  MenubarContent,
+  MenubarItem,
+  MenubarSeparator,
+  MenubarSub,
+  MenubarSubTrigger,
+  MenubarSubContent,
+  MenubarRadioGroup,
+  MenubarRadioItem,
+} from "@/components/ui/menubar";
+import { getConfigStatus, loadScenarioJson, saveScenario } from "@/app/actions";
+import type { Scenario } from "@omnia/scenario";
+import {
+  Save,
+  FileJson,
+  Globe,
+  MapPin,
+  Users,
+  Info,
+  Eye,
+  Pencil,
+} from "lucide-react";
+
+// Import refactored builder components
+import { MetadataTab } from "@/components/builder/MetadataTab";
+import { LocationsTab } from "@/components/builder/LocationsTab";
+import { EntitiesTab } from "@/components/builder/EntitiesTab";
+import { JsonTab } from "@/components/builder/JsonTab";
+import type {
+  LocationData,
+  EntityData,
+  AttributeData,
+} from "@/components/builder/types";
+
+const generateUUID = () => {
+  if (
+    typeof window !== "undefined" &&
+    window.crypto &&
+    window.crypto.randomUUID
+  ) {
+    return window.crypto.randomUUID();
+  }
+  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
+    const r = (Math.random() * 16) | 0;
+    const v = c === "x" ? r : (r & 0x3) | 0x8;
+    return v.toString(16);
+  });
+};
+
+export default function BuilderPage() {
+  const router = useRouter();
+
+  // Load scenarios templates list
+  const [availableScenarios, setAvailableScenarios] = useState<
+    { path: string; name: string; description: string }[]
+  >([]);
+
+  // Tabs: "metadata", "locations", "entities", "json"
+  const [activeTab, setActiveTab] = useState<
+    "metadata" | "locations" | "entities" | "json"
+  >("metadata");
+
+  // Form State
+  const [scenarioId, setScenarioId] = useState("");
+  const [name, setName] = useState("My Custom Scenario");
+  const [description, setDescription] = useState(
+    "A custom scenario template created via builder.",
+  );
+  const [startTime, setStartTime] = useState("2026-07-06T12:00:00.000Z");
+  const [worldAttributes, setWorldAttributes] = useState<AttributeData[]>([]);
+  const [locations, setLocations] = useState<LocationData[]>([]);
+  const [entities, setEntities] = useState<EntityData[]>([]);
+
+  // Selected sub-items for active editing lists
+  const [selectedLocIndex, setSelectedLocIndex] = useState(0);
+  const [selectedEntIndex, setSelectedEntIndex] = useState(0);
+
+  // Status & Notification Banners
+  const [statusMessage, setStatusMessage] = useState<{
+    text: string;
+    type: "success" | "error" | "info";
+  } | null>(null);
+  const [isSubmitting, setIsSubmitting] = useState(false);
+
+  // Initialize dynamic UUIDs client-side to prevent NextJS SSR hydration mismatch
+  useEffect(() => {
+    if (!scenarioId) {
+      const uId = generateUUID();
+      const locId = generateUUID();
+      const entId = generateUUID();
+
+      setScenarioId(uId);
+      setLocations([{ id: locId, attributes: [], connections: [] }]);
+      setEntities([
+        {
+          id: entId,
+          locationId: locId,
+          attributes: [
+            {
+              name: "role",
+              value: "adventurer",
+              visibility: "PUBLIC",
+              allowedEntities: [],
+            },
+          ],
+          aliases: {},
+          initialMemories: [],
+        },
+      ]);
+    }
+  }, [scenarioId]);
+
+  // Fetch available templates on load
+  useEffect(() => {
+    async function loadTemplates() {
+      try {
+        const config = await getConfigStatus();
+        setAvailableScenarios(config.availableScenarios);
+      } catch (err) {
+        console.error("Failed to load scenario list:", err);
+      }
+    }
+    loadTemplates();
+  }, []);
+
+  // Set timeout to dismiss messages
+  useEffect(() => {
+    if (statusMessage) {
+      const timer = setTimeout(() => {
+        setStatusMessage(null);
+      }, 6000);
+      return () => clearTimeout(timer);
+    }
+  }, [statusMessage]);
+
+  // Populate helper lists
+  const locationIds = useMemo(
+    () => locations.map((l) => l.id).filter(Boolean),
+    [locations],
+  );
+  const entityIds = useMemo(
+    () => entities.map((e) => e.id).filter(Boolean),
+    [entities],
+  );
+
+  // Load selected template
+  const handleLoadTemplate = async (path: string) => {
+    if (!path) return;
+    setStatusMessage({ text: "Loading template...", type: "info" });
+    try {
+      const res = await loadScenarioJson(path);
+      if (!res.ok) {
+        setStatusMessage({
+          text: res.error || "Failed to load template.",
+          type: "error",
+        });
+        return;
+      }
+
+      const s = res.scenario as Scenario;
+      if (!s) {
+        setStatusMessage({
+          text: "Scenario template was empty.",
+          type: "error",
+        });
+        return;
+      }
+
+      setScenarioId(s.id || "custom-scenario");
+      setName(s.name || "Loaded Scenario");
+      setDescription(s.description || "");
+      setStartTime(s.startTime || "2026-07-06T12:00:00.000Z");
+
+      // World attributes
+      const wAttrs = (s.world?.attributes || []).map((a) => ({
+        name: a.name,
+        value: a.value,
+        visibility: a.visibility,
+        allowedEntities: a.allowedEntities || [],
+      }));
+      setWorldAttributes(wAttrs);
+
+      // Locations
+      const locs = (s.locations || []).map((l) => ({
+        id: l.id,
+        parentId: l.parentId || undefined,
+        attributes: (l.attributes || []).map((a) => ({
+          name: a.name,
+          value: a.value,
+          visibility: a.visibility,
+          allowedEntities: a.allowedEntities || [],
+        })),
+        connections: (l.connections || []).map((c) => ({
+          targetId: c.targetId,
+          portalName: c.portalName,
+          portalStateDescriptor: c.portalStateDescriptor,
+          visionProp: c.visionProp,
+          soundProp: c.soundProp,
+          bidirectional: c.bidirectional ?? true,
+        })),
+      }));
+      setLocations(
+        locs.length > 0
+          ? locs
+          : [{ id: generateUUID(), attributes: [], connections: [] }],
+      );
+      setSelectedLocIndex(0);
+
+      // Entities
+      const ents = (s.entities || []).map((e) => ({
+        id: e.id,
+        locationId: e.locationId || undefined,
+        attributes: (e.attributes || []).map((a) => ({
+          name: a.name,
+          value: a.value,
+          visibility: a.visibility,
+          allowedEntities: a.allowedEntities || [],
+        })),
+        aliases: e.aliases || {},
+        initialMemories: (e.initialMemories || []).map((m) => ({
+          id: m.id || generateUUID(),
+          timestamp: m.timestamp || s.startTime,
+          locationId: m.locationId || null,
+          intent: {
+            type: m.intent.type,
+            originalText: m.intent.originalText,
+            description: m.intent.description,
+            selfDescription: m.intent.selfDescription,
+            actorId: m.intent.actorId || e.id,
+            targetIds: m.intent.targetIds || [],
+            modifiers: m.intent.modifiers || [],
+          },
+          outcome: m.outcome
+            ? {
+                isValid: m.outcome.isValid,
+                reason: m.outcome.reason,
+              }
+            : undefined,
+        })),
+      }));
+      setEntities(
+        ents.length > 0
+          ? ents
+          : [
+              {
+                id: generateUUID(),
+                locationId: locs[0]?.id || generateUUID(),
+                attributes: [],
+                aliases: {},
+                initialMemories: [],
+              },
+            ],
+      );
+      setSelectedEntIndex(0);
+
+      setStatusMessage({
+        text: "Template loaded successfully!",
+        type: "success",
+      });
+    } catch (err) {
+      setStatusMessage({
+        text: err instanceof Error ? err.message : String(err),
+        type: "error",
+      });
+    }
+  };
+
+  // Compile full scenario object
+  const compiledScenario = useMemo(() => {
+    return {
+      id: scenarioId.trim(),
+      name: name.trim(),
+      description: description.trim(),
+      startTime: startTime.trim(),
+      world:
+        worldAttributes.length > 0
+          ? {
+              attributes: worldAttributes.map((a) => ({
+                name: a.name.trim(),
+                value: a.value.trim(),
+                visibility: a.visibility,
+                ...(a.visibility === "PRIVATE" && a.allowedEntities.length > 0
+                  ? { allowedEntities: a.allowedEntities }
+                  : {}),
+              })),
+            }
+          : undefined,
+      locations: locations.map((l) => ({
+        id: l.id.trim(),
+        ...(l.parentId ? { parentId: l.parentId } : {}),
+        ...(l.attributes.length > 0
+          ? {
+              attributes: l.attributes.map((a) => ({
+                name: a.name.trim(),
+                value: a.value.trim(),
+                visibility: a.visibility,
+                ...(a.visibility === "PRIVATE" && a.allowedEntities.length > 0
+                  ? { allowedEntities: a.allowedEntities }
+                  : {}),
+              })),
+            }
+          : {}),
+        ...(l.connections.length > 0
+          ? {
+              connections: l.connections.map((c) => ({
+                targetId: c.targetId,
+                ...(c.portalName ? { portalName: c.portalName.trim() } : {}),
+                ...(c.portalStateDescriptor
+                  ? { portalStateDescriptor: c.portalStateDescriptor.trim() }
+                  : {}),
+                visionProp: Number(c.visionProp),
+                soundProp: Number(c.soundProp),
+                bidirectional: !!c.bidirectional,
+              })),
+            }
+          : {}),
+      })),
+      entities: entities.map((e) => ({
+        id: e.id.trim(),
+        ...(e.locationId ? { locationId: e.locationId } : {}),
+        ...(e.attributes.length > 0
+          ? {
+              attributes: e.attributes.map((a) => ({
+                name: a.name.trim(),
+                value: a.value.trim(),
+                visibility: a.visibility,
+                ...(a.visibility === "PRIVATE" && a.allowedEntities.length > 0
+                  ? { allowedEntities: a.allowedEntities }
+                  : {}),
+              })),
+            }
+          : {}),
+        ...(Object.keys(e.aliases).length > 0 ? { aliases: e.aliases } : {}),
+        ...(e.initialMemories.length > 0
+          ? {
+              initialMemories: e.initialMemories.map((m) => ({
+                id: m.id,
+                timestamp: m.timestamp,
+                locationId: m.locationId,
+                intent: {
+                  type: m.intent.type,
+                  originalText: m.intent.originalText.trim(),
+                  description: m.intent.description.trim(),
+                  ...(m.intent.selfDescription
+                    ? { selfDescription: m.intent.selfDescription.trim() }
+                    : {}),
+                  actorId: m.intent.actorId,
+                  targetIds: m.intent.targetIds,
+                  ...(m.intent.modifiers && m.intent.modifiers.length > 0
+                    ? { modifiers: m.intent.modifiers }
+                    : []),
+                },
+                ...(m.outcome
+                  ? {
+                      outcome: {
+                        isValid: !!m.outcome.isValid,
+                        reason: m.outcome.reason.trim(),
+                      },
+                    }
+                  : {}),
+              })),
+            }
+          : {}),
+      })),
+    };
+  }, [
+    scenarioId,
+    name,
+    description,
+    startTime,
+    worldAttributes,
+    locations,
+    entities,
+  ]);
+
+  // Save scenario to server
+  const handleSaveToServer = async () => {
+    if (!scenarioId.trim()) {
+      setStatusMessage({
+        text: "Scenario Template ID is required to save.",
+        type: "error",
+      });
+      return;
+    }
+    setIsSubmitting(true);
+    setStatusMessage({ text: "Saving scenario file...", type: "info" });
+    try {
+      const res = await saveScenario(compiledScenario);
+      if (res.ok) {
+        setStatusMessage({
+          text: `Scenario template saved as ${scenarioId}.json successfully!`,
+          type: "success",
+        });
+        // Refresh template list
+        const config = await getConfigStatus();
+        setAvailableScenarios(config.availableScenarios);
+      } else {
+        setStatusMessage({
+          text: res.error || "Failed to save scenario.",
+          type: "error",
+        });
+      }
+    } catch (err) {
+      setStatusMessage({
+        text: err instanceof Error ? err.message : String(err),
+        type: "error",
+      });
+    } finally {
+      setIsSubmitting(false);
+    }
+  };
+
+  // Download scenario file directly
+  const handleDownloadJson = () => {
+    try {
+      const jsonStr = JSON.stringify(compiledScenario, null, 2);
+      const blob = new Blob([jsonStr], { type: "application/json" });
+      const url = URL.createObjectURL(blob);
+      const link = document.createElement("a");
+      link.href = url;
+      link.download = `${scenarioId || "scenario"}.json`;
+      document.body.appendChild(link);
+      link.click();
+      document.body.removeChild(link);
+      URL.revokeObjectURL(url);
+      setStatusMessage({ text: "JSON download initiated.", type: "success" });
+    } catch {
+      setStatusMessage({ text: "Download failed.", type: "error" });
+    }
+  };
+
+  const handleResetScenario = () => {
+    setScenarioId("");
+    setName("My Custom Scenario");
+    setDescription("A custom scenario template created via builder.");
+    setStartTime("2026-07-06T12:00:00.000Z");
+    setWorldAttributes([]);
+    setSelectedLocIndex(0);
+    setSelectedEntIndex(0);
+    setStatusMessage({ text: "Scenario reset successfully.", type: "success" });
+  };
+
+  const handleAddLocation = () => {
+    const newId = generateUUID();
+    setLocations([
+      ...locations,
+      { id: newId, attributes: [], connections: [] },
+    ]);
+    setSelectedLocIndex(locations.length);
+    setActiveTab("locations");
+  };
+
+  const handleAddEntity = () => {
+    const newId = generateUUID();
+    setEntities([
+      ...entities,
+      {
+        id: newId,
+        locationId: locationIds[0] || "",
+        attributes: [],
+        aliases: {},
+        initialMemories: [],
+        isAgent: true,
+      },
+    ]);
+    setSelectedEntIndex(entities.length);
+    setActiveTab("entities");
+  };
+
+  return (
+    <div className="flex flex-col flex-1 min-h-0 w-full bg-background overflow-hidden">
+      {/* Save Status Banner */}
+      {statusMessage && (
+        <div
+          className={`fixed top-14 right-4 z-50 max-w-sm border p-4 shadow-lg animate-fade-in ${
+            statusMessage.type === "success"
+              ? "bg-emerald-950/80 border-emerald-500 text-emerald-300"
+              : statusMessage.type === "error"
+                ? "bg-destructive/10 border-destructive text-destructive"
+                : "bg-secondary/90 border-border text-foreground"
+          }`}
+        >
+          <div className="flex items-start gap-3">
+            <Info className="size-4 shrink-0 mt-0.5" />
+            <div className="text-xs">{statusMessage.text}</div>
+          </div>
+        </div>
+      )}
+
+      {/* Menubar spanning full page width right below navbar */}
+      <div className="w-full border-b border-border/20 bg-card py-1.5 px-4 flex items-center justify-between shrink-0">
+        <div className="flex items-center gap-4">
+          <span className="text-xs font-head text-primary tracking-wider font-bold flex items-center gap-1.5">
+            <Pencil className="size-4 text-primary" />
+          </span>
+          <Menubar className="border-none shadow-none bg-transparent h-7 p-0">
+            <MenubarMenu>
+              <MenubarTrigger className="cursor-pointer">File</MenubarTrigger>
+              <MenubarContent>
+                <MenubarSub>
+                  <MenubarSubTrigger className="cursor-pointer">
+                    Load Template
+                  </MenubarSubTrigger>
+                  <MenubarSubContent>
+                    {availableScenarios.length === 0 ? (
+                      <MenubarItem disabled>No templates</MenubarItem>
+                    ) : (
+                      availableScenarios.map((sc) => (
+                        <MenubarItem
+                          key={sc.path}
+                          className="cursor-pointer"
+                          onClick={() => {
+                            handleLoadTemplate(sc.path);
+                          }}
+                        >
+                          {sc.name}
+                        </MenubarItem>
+                      ))
+                    )}
+                  </MenubarSubContent>
+                </MenubarSub>
+                <MenubarSeparator />
+                <MenubarItem
+                  className="cursor-pointer"
+                  onClick={handleSaveToServer}
+                  disabled={isSubmitting || !scenarioId.trim()}
+                >
+                  <Save className="size-4 mr-2 inline" /> Save to Server
+                </MenubarItem>
+                <MenubarItem
+                  className="cursor-pointer"
+                  onClick={handleDownloadJson}
+                >
+                  <FileJson className="size-4 mr-2 inline" /> Export JSON
+                </MenubarItem>
+              </MenubarContent>
+            </MenubarMenu>
+
+            <MenubarMenu>
+              <MenubarTrigger className="cursor-pointer">Edit</MenubarTrigger>
+              <MenubarContent>
+                <MenubarItem
+                  className="cursor-pointer"
+                  onClick={handleResetScenario}
+                >
+                  Reset Scenario
+                </MenubarItem>
+                <MenubarSeparator />
+                <MenubarItem
+                  className="cursor-pointer"
+                  onClick={handleAddLocation}
+                >
+                  Add New Location
+                </MenubarItem>
+                <MenubarItem
+                  className="cursor-pointer"
+                  onClick={handleAddEntity}
+                >
+                  Add New Entity
+                </MenubarItem>
+              </MenubarContent>
+            </MenubarMenu>
+
+            <MenubarMenu>
+              <MenubarTrigger className="cursor-pointer">View</MenubarTrigger>
+              <MenubarContent>
+                <MenubarRadioGroup
+                  value={activeTab}
+                  onValueChange={(val) => setActiveTab(val as typeof activeTab)}
+                >
+                  <MenubarRadioItem value="metadata" className="cursor-pointer">
+                    World Metadata
+                  </MenubarRadioItem>
+                  <MenubarRadioItem
+                    value="locations"
+                    className="cursor-pointer"
+                  >
+                    Locations
+                  </MenubarRadioItem>
+                  <MenubarRadioItem value="entities" className="cursor-pointer">
+                    Entities
+                  </MenubarRadioItem>
+                  <MenubarRadioItem value="json" className="cursor-pointer">
+                    Live JSON Preview
+                  </MenubarRadioItem>
+                </MenubarRadioGroup>
+              </MenubarContent>
+            </MenubarMenu>
+          </Menubar>
+        </div>
+        <div className="text-[10px] font-mono text-muted-foreground">
+          {scenarioId ? `ID: ${scenarioId}` : "Unsaved Scenario"}
+        </div>
+      </div>
+
+      <SidebarProvider className="flex-1 min-h-0">
+        <div className="flex flex-1 min-h-0 w-full overflow-hidden">
+          {/* Viewport-level Vertical Sidebar on the Left Side */}
+          <Sidebar
+            collapsible="none"
+            className="h-full border-r border-border/30 bg-card shrink-0"
+          >
+            <SidebarContent className="flex flex-col justify-between h-full bg-card p-6">
+              <div className="flex flex-col gap-2 font-head">
+                <span className="text-[10px] font-mono uppercase tracking-wider text-muted-foreground block mb-2">
+                  Configuration
+                </span>
+
+                <button
+                  onClick={() => setActiveTab("metadata")}
+                  className={`w-full text-left px-4 py-2.5 text-xs font-mono font-bold tracking-wide border transition-all flex items-center gap-2 cursor-pointer ${
+                    activeTab === "metadata"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)] font-bold"
+                      : "border-border/30 hover:bg-secondary text-muted-foreground hover:text-foreground"
+                  }`}
+                >
+                  <Globe className="size-3.5" />
+                  <span>World Metadata</span>
+                </button>
+
+                <button
+                  onClick={() => setActiveTab("locations")}
+                  className={`w-full text-left px-4 py-2.5 text-xs font-mono font-bold tracking-wide border transition-all flex items-center gap-2 cursor-pointer ${
+                    activeTab === "locations"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)] font-bold"
+                      : "border-border/30 hover:bg-secondary text-muted-foreground hover:text-foreground"
+                  }`}
+                >
+                  <MapPin className="size-3.5" />
+                  <span>Locations</span>
+                  <span className="ml-auto text-[10px] font-mono border border-muted-foreground/20 bg-muted/10 px-1 rounded">
+                    {locations.length}
+                  </span>
+                </button>
+
+                <button
+                  onClick={() => setActiveTab("entities")}
+                  className={`w-full text-left px-4 py-2.5 text-xs font-mono font-bold tracking-wide border transition-all flex items-center gap-2 cursor-pointer ${
+                    activeTab === "entities"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)] font-bold"
+                      : "border-border/30 hover:bg-secondary text-muted-foreground hover:text-foreground"
+                  }`}
+                >
+                  <Users className="size-3.5" />
+                  <span>Entities</span>
+                  <span className="ml-auto text-[10px] font-mono border border-muted-foreground/20 bg-muted/10 px-1 rounded">
+                    {entities.length}
+                  </span>
+                </button>
+
+                <button
+                  onClick={() => setActiveTab("json")}
+                  className={`w-full text-left px-4 py-2.5 text-xs font-mono font-bold tracking-wide border transition-all flex items-center gap-2 cursor-pointer ${
+                    activeTab === "json"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)] font-bold"
+                      : "border-border/30 hover:bg-secondary text-muted-foreground hover:text-foreground"
+                  }`}
+                >
+                  <Eye className="size-3.5" />
+                  <span>Live JSON Preview</span>
+                </button>
+              </div>
+
+              {/* Sidebar Footer link */}
+              <div className="border-t border-border/10 pt-3 flex items-center justify-between text-[10px] text-muted-foreground">
+                <button
+                  onClick={() => router.push("/")}
+                  className="w-full py-1 text-center hover:text-foreground text-primary font-bold uppercase transition-colors cursor-pointer"
+                >
+                  Back to Dashboard
+                </button>
+              </div>
+            </SidebarContent>
+          </Sidebar>
+
+          {/* Main Centered Content Pane on the Right */}
+          <main className="flex-1 overflow-y-auto px-10 py-8 min-h-0 flex flex-col">
+            <div className="mx-auto max-w-[1200px] w-full flex-1 flex flex-col min-h-0 gap-6">
+              {/* Header block with Page Name */}
+              <div className="shrink-0">
+                <h1 className="text-headline-md text-primary flex items-center gap-2 font-head">
+                  Scenario Builder
+                </h1>
+              </div>
+
+              {/* Active configuration tab form */}
+              <div className="flex-1 min-h-0">
+                {/* TAB 1: World Metadata & Attributes */}
+                {activeTab === "metadata" && (
+                  <MetadataTab
+                    scenarioId={scenarioId}
+                    setScenarioId={setScenarioId}
+                    name={name}
+                    setName={setName}
+                    description={description}
+                    setDescription={setDescription}
+                    startTime={startTime}
+                    setStartTime={setStartTime}
+                    worldAttributes={worldAttributes}
+                    setWorldAttributes={setWorldAttributes}
+                    entityIds={entityIds}
+                    entities={entities}
+                  />
+                )}
+
+                {/* TAB 2: Locations & Spatial connections */}
+                {activeTab === "locations" && (
+                  <LocationsTab
+                    locations={locations}
+                    setLocations={setLocations}
+                    entities={entities}
+                    locationIds={locationIds}
+                    entityIds={entityIds}
+                    selectedLocIndex={selectedLocIndex}
+                    setSelectedLocIndex={setSelectedLocIndex}
+                    generateUUID={generateUUID}
+                  />
+                )}
+
+                {/* TAB 3: Entities */}
+                {activeTab === "entities" && (
+                  <EntitiesTab
+                    entities={entities}
+                    setEntities={setEntities}
+                    locations={locations}
+                    locationIds={locationIds}
+                    entityIds={entityIds}
+                    selectedEntIndex={selectedEntIndex}
+                    setSelectedEntIndex={setSelectedEntIndex}
+                    startTime={startTime}
+                    generateUUID={generateUUID}
+                  />
+                )}
+
+                {/* TAB 4: Live JSON Preview */}
+                {activeTab === "json" && (
+                  <JsonTab
+                    compiledScenario={compiledScenario}
+                    onCopySuccess={() =>
+                      setStatusMessage({
+                        text: "JSON copied to clipboard!",
+                        type: "success",
+                      })
+                    }
+                  />
+                )}
+              </div>
+            </div>
+          </main>
+        </div>
+      </SidebarProvider>
+    </div>
+  );
+}

apps/gui/src/app/config/page.tsx

@@ -0,0 +1,5 @@
+import { ConfigView } from "@/components/config/ConfigView";
+
+export default function ConfigPage() {
+  return <ConfigView />;
+}

apps/gui/src/app/globals.css

@@ -0,0 +1,200 @@
+@import "tailwindcss";
+@plugin "tailwindcss-animate";
+
+@custom-variant data-open (&[data-state="open"], &[data-state="active"]);
+@custom-variant data-closed (&[data-state="closed"], &[data-state="inactive"]);
+@custom-variant data-active (&[data-state="active"], &[data-state="open"]);
+@custom-variant data-checked (&[data-state="checked"], &[aria-checked="true"]);
+@custom-variant data-horizontal (&[data-orientation="horizontal"]);
+@custom-variant data-vertical (&[data-orientation="vertical"]);
+@custom-variant data-popup-open (&[data-state="open"]);
+@custom-variant data-highlighted (&[data-highlighted]);
+
+@theme inline {
+  --font-head: var(--font-head);
+  --font-sans: var(--font-sans);
+  --font-mono: var(--font-mono);
+
+  --radius: 0px;
+  --radius-xs: 0px;
+  --radius-sm: 0px;
+  --radius-md: 0px;
+  --radius-lg: 0px;
+  --radius-xl: 0px;
+  --radius-2xl: 0px;
+  --radius-3xl: 0px;
+
+  --shadow-xs: 1px 1px 0 0 var(--border);
+  --shadow-sm: 2px 2px 0 0 var(--border);
+  --shadow: 3px 3px 0 0 var(--border);
+  --shadow-md: 4px 4px 0 0 var(--border);
+  --shadow-lg: 6px 6px 0 0 var(--border);
+  --shadow-xl: 10px 10px 0 1px var(--border);
+  --shadow-2xl: 16px 16px 0 1px var(--border);
+
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-primary-hover: var(--primary-hover);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-destructive-foreground: var(--destructive-foreground);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+
+  --color-sidebar: var(--sidebar);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-ring: var(--sidebar-ring);
+
+  --color-surface: var(--surface);
+  --color-surface-dim: var(--surface-dim);
+  --color-surface-bright: var(--surface-bright);
+  --color-surface-container-lowest: var(--surface-container-lowest);
+  --color-surface-container-low: var(--surface-container-low);
+  --color-surface-container: var(--surface-container);
+  --color-surface-container-high: var(--surface-container-high);
+  --color-surface-container-highest: var(--surface-container-highest);
+}
+
+:root {
+  --radius: 0;
+  --background: #f4e9dc;
+  --foreground: #201a16;
+  --card: #fcf3e8;
+  --card-foreground: #201a16;
+  --popover: #fff8f5;
+  --popover-foreground: #201a16;
+  --primary: #e58e58;
+  --primary-hover: #d47e48;
+  --primary-foreground: #201a16;
+  --secondary: #f5e6d3;
+  --secondary-foreground: #201a16;
+  --muted: #efe0cd;
+  --muted-foreground: #6d6354;
+  --accent: #ffd966;
+  --accent-foreground: #201a16;
+  --destructive: #ba1a1a;
+  --destructive-foreground: #ffffff;
+  --border: #5c544e;
+  --input: #fff8f5;
+  --ring: #e58e58;
+
+  --sidebar: #fcf3e8;
+  --sidebar-foreground: #201a16;
+  --sidebar-primary: #e58e58;
+  --sidebar-primary-foreground: #201a16;
+  --sidebar-accent: #ffd966;
+  --sidebar-accent-foreground: #201a16;
+  --sidebar-border: #5c544e;
+  --sidebar-ring: #e58e58;
+
+  --surface: #fff8f5;
+  --surface-dim: #e4d8d0;
+  --surface-bright: #fff8f5;
+  --surface-container-lowest: #ffffff;
+  --surface-container-low: #fef1e9;
+  --surface-container: #f8ece3;
+  --surface-container-high: #f2e6de;
+  --surface-container-highest: #ece0d8;
+}
+
+.dark {
+  --background: #181310;
+  --foreground: #fff8f5;
+  --card: #362f2a;
+  --card-foreground: #fff8f5;
+  --popover: #201a16;
+  --popover-foreground: #fff8f5;
+  --primary: #e58e58;
+  --primary-hover: #ffb68c;
+  --primary-foreground: #201a16;
+  --secondary: #54433a;
+  --secondary-foreground: #fbeee6;
+  --muted: #362f2a;
+  --muted-foreground: #d9c2b6;
+  --accent: #c1a032;
+  --accent-foreground: #201a16;
+  --destructive: #ffdad6;
+  --destructive-foreground: #93000a;
+  --border: #877369;
+  --input: #362f2a;
+  --ring: #e58e58;
+
+  --sidebar: #201a16;
+  --sidebar-foreground: #fff8f5;
+  --sidebar-primary: #e58e58;
+  --sidebar-primary-foreground: #201a16;
+  --sidebar-accent: #c1a032;
+  --sidebar-accent-foreground: #201a16;
+  --sidebar-border: #877369;
+  --sidebar-ring: #e58e58;
+
+  --surface: #201a16;
+  --surface-dim: #362f2a;
+  --surface-bright: #201a16;
+  --surface-container-lowest: #201a16;
+  --surface-container-low: #362f2a;
+  --surface-container: #362f2a;
+  --surface-container-high: #54433a;
+  --surface-container-highest: #54433a;
+}
+
+@utility text-headline-lg {
+  font-family: var(--font-head);
+  font-size: 48px;
+  font-weight: 400;
+  line-height: 1.1;
+  letter-spacing: -0.02em;
+}
+
+@utility text-headline-md {
+  font-family: var(--font-head);
+  font-size: 32px;
+  font-weight: 400;
+  line-height: 1.2;
+}
+
+@utility text-headline-sm {
+  font-family: var(--font-head);
+  font-size: 24px;
+  font-weight: 400;
+  line-height: 1.2;
+}
+
+@utility text-body-lg {
+  font-family: var(--font-sans);
+  font-size: 18px;
+  font-weight: 400;
+  line-height: 1.6;
+}
+
+@utility text-body-md {
+  font-family: var(--font-sans);
+  font-size: 16px;
+  font-weight: 400;
+  line-height: 1.6;
+}
+
+@utility text-label-sm {
+  font-family: var(--font-mono);
+  font-size: 12px;
+  font-weight: 700;
+  line-height: 1.4;
+  text-transform: uppercase;
+}

apps/gui/src/app/layout.tsx

@@ -0,0 +1,97 @@
+"use client";
+
+import { useEffect, type ReactNode } from "react";
+import { Jersey_25, JetBrains_Mono, Space_Mono } from "next/font/google";
+import Link from "next/link";
+import { usePathname } from "next/navigation";
+import "./globals.css";
+import {
+  NavigationMenu,
+  NavigationMenuList,
+  NavigationMenuItem,
+  NavigationMenuLink,
+} from "@/components/ui/navigation-menu";
+
+const jersey25 = Jersey_25({
+  subsets: ["latin"],
+  weight: "400",
+  variable: "--font-head",
+  display: "swap",
+});
+
+const jetbrainsMono = JetBrains_Mono({
+  subsets: ["latin"],
+  variable: "--font-sans",
+  display: "swap",
+});
+
+const spaceMono = Space_Mono({
+  subsets: ["latin"],
+  weight: ["400", "700"],
+  variable: "--font-mono",
+  display: "swap",
+});
+
+const links = [
+  { href: "/", label: "Home" },
+  { href: "/builder", label: "Builder" },
+  { href: "/config", label: "Config" },
+];
+
+export default function RootLayout({ children }: { children: ReactNode }) {
+  const pathname = usePathname();
+
+  useEffect(() => {
+    document.title = "Omnia";
+  }, []);
+
+  return (
+    <html lang="en">
+      <body
+        className={`${jersey25.variable} ${jetbrainsMono.variable} ${spaceMono.variable} flex flex-col h-dvh overflow-hidden bg-background text-foreground font-sans`}
+      >
+        {!pathname?.startsWith("/play") && (
+          <video
+            className="fixed inset-0 w-full h-full object-cover pointer-events-none"
+            src="/output.webm"
+            poster="/background.png"
+            autoPlay
+            loop
+            muted
+            playsInline
+          />
+        )}
+        <nav className="border-b border-dotted border-border/20 bg-secondary/30 shrink-0">
+          <div className="mx-auto max-w-[800px] px-10 py-3 flex items-center justify-center">
+            <NavigationMenu viewport={false}>
+              <NavigationMenuList>
+                {links.map((link) => {
+                  const isActive =
+                    pathname === link.href ||
+                    (link.href !== "/" && pathname?.startsWith(link.href));
+                  return (
+                    <NavigationMenuItem key={link.href}>
+                      <NavigationMenuLink asChild active={isActive}>
+                        <Link
+                          href={link.href}
+                          className={`text-foreground no-underline font-medium text-sm p-2 transition-all outline-none ${
+                            isActive
+                              ? "bg-primary/15 text-primary"
+                              : "hover:bg-secondary hover:text-foreground"
+                          }`}
+                        >
+                          {link.label}
+                        </Link>
+                      </NavigationMenuLink>
+                    </NavigationMenuItem>
+                  );
+                })}
+              </NavigationMenuList>
+            </NavigationMenu>
+          </div>
+        </nav>
+        <main className="flex-1 flex flex-col min-h-0">{children}</main>
+      </body>
+    </html>
+  );
+}

apps/gui/src/app/page.tsx

@@ -0,0 +1,5 @@
+import { DashboardView } from "@/components/play/DashboardView";
+
+export default function Home() {
+  return <DashboardView />;
+}

apps/gui/src/app/play/page.tsx

@@ -0,0 +1,18 @@
+"use client";
+
+import { PlayView } from "@/components/play/PlayView";
+import { Suspense } from "react";
+
+export default function PlayPage() {
+  return (
+    <Suspense
+      fallback={
+        <div className="flex items-center justify-center min-h-[400px]">
+          <div className="animate-spin text-primary">Loading...</div>
+        </div>
+      }
+    >
+      <PlayView />
+    </Suspense>
+  );
+}

apps/gui/src/components/builder/AttributeEditor.tsx

@@ -0,0 +1,167 @@
+"use client";
+
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Plus, Trash2 } from "lucide-react";
+import type { AttributeData, EntityData } from "./types";
+import { getEntityDisplayNameById } from "./utils";
+
+interface AttributeEditorProps {
+  title?: string;
+  attributes: AttributeData[];
+  onChange: (attrs: AttributeData[]) => void;
+  onAdd: () => void;
+  entityIds: string[];
+  entities?: EntityData[];
+}
+
+export function AttributeEditor({
+  title = "Attributes",
+  attributes,
+  onChange,
+  onAdd,
+  entityIds,
+  entities,
+}: AttributeEditorProps) {
+  const handleAttrChange = <K extends keyof AttributeData>(
+    index: number,
+    key: K,
+    val: AttributeData[K],
+  ) => {
+    const copy = [...attributes];
+    copy[index] = { ...copy[index], [key]: val };
+    onChange(copy);
+  };
+
+  const handleToggleEntityAccess = (index: number, entId: string) => {
+    const copy = [...attributes];
+    const allowed = copy[index].allowedEntities || [];
+    if (allowed.includes(entId)) {
+      copy[index].allowedEntities = allowed.filter((id) => id !== entId);
+    } else {
+      copy[index].allowedEntities = [...allowed, entId];
+    }
+    onChange(copy);
+  };
+
+  return (
+    <div className="space-y-4">
+      <div className="flex justify-between items-center border-b border-border/20 pb-2">
+        <h3 className="text-body-md font-mono text-foreground font-bold">
+          {title}
+        </h3>
+        <Button
+          type="button"
+          size="sm"
+          variant="outline"
+          onClick={onAdd}
+          className="h-7 text-xs flex gap-1 cursor-pointer"
+        >
+          <Plus className="size-3" /> Add Attribute
+        </Button>
+      </div>
+      {attributes.length === 0 ? (
+        <p className="text-xs text-muted-foreground italic">
+          No attributes defined yet.
+        </p>
+      ) : (
+        <div className="space-y-3">
+          {attributes.map((attr, index) => (
+            <div
+              key={index}
+              className="border border-border/20 bg-secondary/10 p-3 rounded space-y-3"
+            >
+              <div className="flex gap-2 items-center">
+                <div className="flex-1 grid grid-cols-2 gap-2">
+                  <Input
+                    placeholder="Name (e.g. role)"
+                    value={attr.name}
+                    onChange={(e) =>
+                      handleAttrChange(index, "name", e.target.value)
+                    }
+                    className="h-8 font-mono text-xs"
+                  />
+                  <Input
+                    placeholder="Value (e.g. merchant)"
+                    value={attr.value}
+                    onChange={(e) =>
+                      handleAttrChange(index, "value", e.target.value)
+                    }
+                    className="h-8 text-xs"
+                  />
+                </div>
+                <Button
+                  type="button"
+                  variant="destructive"
+                  size="icon"
+                  className="size-8 shrink-0 cursor-pointer"
+                  onClick={() =>
+                    onChange(attributes.filter((_, i) => i !== index))
+                  }
+                >
+                  <Trash2 className="size-4" />
+                </Button>
+              </div>
+              <div className="flex items-center gap-4 text-xs">
+                <div className="flex items-center gap-2">
+                  <Label className="text-muted-foreground cursor-pointer flex items-center gap-1.5">
+                    <Checkbox
+                      checked={attr.visibility === "PUBLIC"}
+                      onCheckedChange={(checked) =>
+                        handleAttrChange(
+                          index,
+                          "visibility",
+                          checked ? "PUBLIC" : "PRIVATE",
+                        )
+                      }
+                    />
+                    Publicly Visible
+                  </Label>
+                </div>
+                {attr.visibility === "PRIVATE" && (
+                  <div className="flex-1 border-l border-border/25 pl-4">
+                    <span className="text-muted-foreground font-semibold block mb-1">
+                      Visible to Entities:
+                    </span>
+                    {entityIds.length === 0 ? (
+                      <span className="text-[10px] italic text-muted-foreground">
+                        Add entities first to grant private access
+                      </span>
+                    ) : (
+                      <div className="flex flex-wrap gap-1">
+                        {entityIds.map((entId) => {
+                          const isAllowed =
+                            attr.allowedEntities?.includes(entId);
+                          return (
+                            <button
+                              key={entId}
+                              type="button"
+                              onClick={() =>
+                                handleToggleEntityAccess(index, entId)
+                              }
+                              className={`px-2 py-0.5 rounded text-[10px] font-mono border transition-all cursor-pointer ${
+                                isAllowed
+                                  ? "bg-primary/20 border-primary text-primary font-bold"
+                                  : "bg-background border-border/30 text-muted-foreground hover:bg-secondary"
+                              }`}
+                            >
+                              {entities
+                                ? getEntityDisplayNameById(entId, entities)
+                                : entId}
+                            </button>
+                          );
+                        })}
+                      </div>
+                    )}
+                  </div>
+                )}
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}

apps/gui/src/components/builder/EntitiesTab.tsx

@@ -0,0 +1,563 @@
+"use client";
+
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import {
+  Combobox,
+  ComboboxContent,
+  ComboboxEmpty,
+  ComboboxInput,
+  ComboboxItem,
+  ComboboxList,
+} from "@/components/ui/combobox";
+import { AttributeEditor } from "./AttributeEditor";
+import { Plus, Trash2, ChevronRight } from "lucide-react";
+import type { EntityData, MemoryData, LocationData } from "./types";
+import {
+  getEntityDisplayName,
+  getEntityDisplayNameById,
+  getLocationDisplayNameById,
+} from "./utils";
+
+interface EntitiesTabProps {
+  entities: EntityData[];
+  setEntities: (ents: EntityData[]) => void;
+  locations: LocationData[];
+  locationIds: string[];
+  entityIds: string[];
+  selectedEntIndex: number;
+  setSelectedEntIndex: (idx: number) => void;
+  startTime: string;
+  generateUUID: () => string;
+}
+
+export function EntitiesTab({
+  entities,
+  setEntities,
+  locations,
+  locationIds,
+  entityIds,
+  selectedEntIndex,
+  setSelectedEntIndex,
+  startTime,
+  generateUUID,
+}: EntitiesTabProps) {
+  const selectedEnt = entities[selectedEntIndex];
+
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-4 gap-8 items-start min-h-0 pb-12">
+      {/* Left sidebar: Entities list */}
+      <div className="md:col-span-1 border border-border/20 bg-card shadow-[2px_2px_0_0_var(--border)] flex flex-col max-h-[500px]">
+        <div className="p-3 border-b border-border/25 flex justify-between items-center bg-secondary/15">
+          <strong className="text-xs font-mono uppercase tracking-wider text-muted-foreground">
+            Entities
+          </strong>
+          <Button
+            type="button"
+            size="sm"
+            onClick={() => {
+              const newId = generateUUID();
+              setEntities([
+                ...entities,
+                {
+                  id: newId,
+                  locationId: locationIds[0],
+                  attributes: [],
+                  aliases: {},
+                  initialMemories: [],
+                  isAgent: true,
+                },
+              ]);
+              setSelectedEntIndex(entities.length);
+            }}
+            className="h-6 text-[10px] px-2 flex gap-1 cursor-pointer"
+          >
+            <Plus className="size-3" /> Add
+          </Button>
+        </div>
+        <div className="overflow-y-auto divide-y divide-border/10 flex-1">
+          {entities.map((ent, idx) => (
+            <div
+              key={idx}
+              onClick={() => setSelectedEntIndex(idx)}
+              className={`p-3 text-xs font-mono cursor-pointer flex justify-between items-center transition-all ${
+                selectedEntIndex === idx
+                  ? "bg-primary/10 text-primary font-bold border-l-4 border-primary"
+                  : "hover:bg-secondary/40 text-foreground"
+              }`}
+            >
+              <span className="truncate">
+                {getEntityDisplayName(ent) || `(Empty ID)`}
+              </span>
+              {entities.length > 1 && (
+                <button
+                  type="button"
+                  onClick={(e) => {
+                    e.stopPropagation();
+                    const newEnts = entities.filter((_, i) => i !== idx);
+                    setEntities(newEnts);
+                    setSelectedEntIndex(Math.max(0, idx - 1));
+                  }}
+                  className="text-muted-foreground hover:text-destructive pl-2 cursor-pointer"
+                >
+                  <Trash2 className="size-3.5" />
+                </button>
+              )}
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* Right panel: Edit selected entity details */}
+      {selectedEnt ? (
+        <div className="md:col-span-3 space-y-6">
+          {/* Entity Configuration Card */}
+          <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] space-y-4">
+            <h2 className="text-body-lg text-primary font-bold border-b border-border/20 pb-2">
+              Entity Configuration
+            </h2>
+
+            <div className="space-y-1.5">
+              <Label>Entity ID</Label>
+              <Input
+                value={selectedEnt.id}
+                readOnly
+                className="font-mono text-xs bg-muted cursor-not-allowed text-muted-foreground"
+              />
+            </div>
+
+            <div className="space-y-1.5">
+              <Label>Current Location</Label>
+              <Combobox
+                items={locationIds}
+                value={selectedEnt.locationId || ""}
+                onValueChange={(value) => {
+                  const copy = [...entities];
+                  copy[selectedEntIndex].locationId = value || undefined;
+                  setEntities(copy);
+                }}
+              >
+                <ComboboxInput placeholder="Select a location..." showClear />
+                <ComboboxContent>
+                  <ComboboxEmpty>No locations found.</ComboboxEmpty>
+                  <ComboboxList>
+                    {(id: string) => (
+                      <ComboboxItem key={id} value={id}>
+                        {getLocationDisplayNameById(id, locations)}
+                      </ComboboxItem>
+                    )}
+                  </ComboboxList>
+                </ComboboxContent>
+              </Combobox>
+            </div>
+
+            <div className="space-y-1.5 pt-1 pb-2">
+              <div className="flex items-center gap-2">
+                <Label className="text-muted-foreground cursor-pointer flex items-center gap-1.5 text-sm font-semibold">
+                  <Checkbox
+                    checked={selectedEnt.isAgent !== false}
+                    onCheckedChange={(checked) => {
+                      const copy = [...entities];
+                      copy[selectedEntIndex].isAgent = !!checked;
+                      setEntities(copy);
+                    }}
+                  />
+                  Is Agent?
+                </Label>
+              </div>
+              <p className="text-[11px] text-muted-foreground/75 pl-5 select-none leading-normal">
+                When enabled, this entity will run an autonomous LLM loop to
+                perceive its environment, update its memories, and generate
+                prose narrative actions.
+              </p>
+            </div>
+
+            {/* Attributes */}
+            <div className="pt-2">
+              <AttributeEditor
+                title="Entity Attributes"
+                attributes={selectedEnt.attributes || []}
+                onChange={(newAttrs) => {
+                  const copy = [...entities];
+                  copy[selectedEntIndex].attributes = newAttrs;
+                  setEntities(copy);
+                }}
+                onAdd={() => {
+                  const copy = [...entities];
+                  copy[selectedEntIndex].attributes = [
+                    ...copy[selectedEntIndex].attributes,
+                    {
+                      name: "",
+                      value: "",
+                      visibility: "PUBLIC",
+                      allowedEntities: [],
+                    },
+                  ];
+                  setEntities(copy);
+                }}
+                entityIds={entityIds}
+                entities={entities}
+              />
+            </div>
+          </div>
+
+          {/* Aliases Card */}
+          <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] space-y-3">
+            <div className="flex justify-between items-center border-b border-border/20 pb-2">
+              <h3 className="text-body-md text-foreground font-bold">
+                Aliases (Perceptions)
+              </h3>
+              <Button
+                type="button"
+                size="sm"
+                variant="outline"
+                onClick={() => {
+                  const copy = [...entities];
+                  const target = entityIds.find(
+                    (id) => id !== selectedEnt.id && !selectedEnt.aliases[id],
+                  );
+                  if (target) {
+                    copy[selectedEntIndex].aliases = {
+                      ...selectedEnt.aliases,
+                      [target]: "",
+                    };
+                    setEntities(copy);
+                  }
+                }}
+                disabled={entityIds.length <= 1}
+                className="h-7 text-xs flex gap-1 cursor-pointer"
+              >
+                <Plus className="size-3" /> Add Alias
+              </Button>
+            </div>
+
+            {Object.keys(selectedEnt.aliases || {}).length === 0 ? (
+              <p className="text-xs text-muted-foreground italic">
+                No descriptive aliases configured. Defaults to actual entity ID.
+              </p>
+            ) : (
+              <div className="space-y-2">
+                {Object.entries(selectedEnt.aliases).map(
+                  ([targetId, aliasText]) => (
+                    <div
+                      key={targetId}
+                      className="flex gap-2 items-center bg-secondary/15 p-2 rounded"
+                    >
+                      <span
+                        className="text-[11px] font-mono text-muted-foreground w-1/3 truncate"
+                        title={targetId}
+                      >
+                        {getEntityDisplayNameById(targetId, entities)}
+                      </span>
+                      <ChevronRight className="size-3 text-muted-foreground shrink-0" />
+                      <Input
+                        placeholder="Descriptive name (e.g. the guard)"
+                        value={aliasText}
+                        onChange={(e) => {
+                          const copy = [...entities];
+                          copy[selectedEntIndex].aliases = {
+                            ...selectedEnt.aliases,
+                            [targetId]: e.target.value,
+                          };
+                          setEntities(copy);
+                        }}
+                        className="h-7 text-xs flex-1"
+                      />
+                      <button
+                        type="button"
+                        onClick={() => {
+                          const copy = [...entities];
+                          const updated = { ...selectedEnt.aliases };
+                          delete updated[targetId];
+                          copy[selectedEntIndex].aliases = updated;
+                          setEntities(copy);
+                        }}
+                        className="text-muted-foreground hover:text-destructive cursor-pointer"
+                      >
+                        <Trash2 className="size-3.5" />
+                      </button>
+                    </div>
+                  ),
+                )}
+              </div>
+            )}
+          </div>
+
+          {/* Initial Memories Card */}
+          <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] space-y-3">
+            <div className="flex justify-between items-center border-b border-border/20 pb-2">
+              <h3 className="text-body-md text-foreground font-bold">
+                Initial Memories
+              </h3>
+              <Button
+                type="button"
+                size="sm"
+                variant="outline"
+                onClick={() => {
+                  const copy = [...entities];
+                  const newMem: MemoryData = {
+                    id: generateUUID(),
+                    timestamp: startTime,
+                    locationId: selectedEnt.locationId || null,
+                    intent: {
+                      type: "dialogue",
+                      originalText: "",
+                      description: "",
+                      actorId: selectedEnt.id,
+                      targetIds: [],
+                    },
+                  };
+                  copy[selectedEntIndex].initialMemories = [
+                    ...selectedEnt.initialMemories,
+                    newMem,
+                  ];
+                  setEntities(copy);
+                }}
+                className="h-7 text-xs flex gap-1 cursor-pointer"
+              >
+                <Plus className="size-3" /> Add Memory
+              </Button>
+            </div>
+
+            {!selectedEnt.initialMemories ||
+            selectedEnt.initialMemories.length === 0 ? (
+              <p className="text-xs text-muted-foreground italic">
+                No initial memories loaded. Entities will start blank.
+              </p>
+            ) : (
+              <div className="space-y-4 overflow-y-auto max-h-[300px] pr-1">
+                {selectedEnt.initialMemories.map((mem, memIdx) => (
+                  <div
+                    key={mem.id}
+                    className="border border-border/20 bg-secondary/5 p-3 rounded space-y-3 relative"
+                  >
+                    <button
+                      type="button"
+                      onClick={() => {
+                        const copy = [...entities];
+                        copy[selectedEntIndex].initialMemories =
+                          selectedEnt.initialMemories.filter(
+                            (_, i) => i !== memIdx,
+                          );
+                        setEntities(copy);
+                      }}
+                      className="absolute top-2 right-2 text-muted-foreground hover:text-destructive cursor-pointer"
+                    >
+                      <Trash2 className="size-3.5" />
+                    </button>
+
+                    <div className="grid grid-cols-2 gap-2">
+                      <div className="space-y-1">
+                        <span className="text-[10px] font-semibold text-muted-foreground">
+                          Type
+                        </span>
+                        <select
+                          className="bg-card border border-border/30 px-2 py-0.5 text-xs outline-none w-full rounded"
+                          value={mem.intent.type}
+                          onChange={(e) => {
+                            const copy = [...entities];
+                            copy[selectedEntIndex].initialMemories[
+                              memIdx
+                            ].intent.type = e.target.value as
+                              "dialogue" | "action" | "monologue";
+                            setEntities(copy);
+                          }}
+                        >
+                          <option value="dialogue">Dialogue</option>
+                          <option value="action">Action</option>
+                          <option value="monologue">Monologue</option>
+                        </select>
+                      </div>
+
+                      <div className="space-y-1">
+                        <span className="text-[10px] font-semibold text-muted-foreground">
+                          Location
+                        </span>
+                        <select
+                          className="bg-card border border-border/30 px-2 py-0.5 text-xs outline-none w-full rounded font-mono"
+                          value={mem.locationId || ""}
+                          onChange={(e) => {
+                            const copy = [...entities];
+                            copy[selectedEntIndex].initialMemories[
+                              memIdx
+                            ].locationId = e.target.value || null;
+                            setEntities(copy);
+                          }}
+                        >
+                          <option value="">-- Nowhere --</option>
+                          {locationIds.map((id) => (
+                            <option key={id} value={id}>
+                              {getLocationDisplayNameById(id, locations)}
+                            </option>
+                          ))}
+                        </select>
+                      </div>
+                    </div>
+
+                    <div className="space-y-1.5">
+                      <span className="text-[10px] font-semibold text-muted-foreground">
+                        Verbatim Text (originalText)
+                      </span>
+                      <Input
+                        placeholder='e.g. "We should leave," Alice said.'
+                        value={mem.intent.originalText}
+                        onChange={(e) => {
+                          const copy = [...entities];
+                          copy[selectedEntIndex].initialMemories[
+                            memIdx
+                          ].intent.originalText = e.target.value;
+                          setEntities(copy);
+                        }}
+                        className="h-7 text-xs"
+                      />
+                    </div>
+
+                    <div className="space-y-1.5">
+                      <span className="text-[10px] font-semibold text-muted-foreground">
+                        Objective Description
+                      </span>
+                      <Input
+                        placeholder="e.g. Alice says she wants to leave."
+                        value={mem.intent.description}
+                        onChange={(e) => {
+                          const copy = [...entities];
+                          copy[selectedEntIndex].initialMemories[
+                            memIdx
+                          ].intent.description = e.target.value;
+                          setEntities(copy);
+                        }}
+                        className="h-7 text-xs"
+                      />
+                    </div>
+
+                    {/* Targets multi-select */}
+                    <div className="space-y-1">
+                      <span className="text-[10px] font-semibold text-muted-foreground block">
+                        Involved Targets
+                      </span>
+                      <div className="flex flex-wrap gap-1">
+                        {entityIds
+                          .filter((id) => id !== selectedEnt.id)
+                          .map((entId) => {
+                            const isSelected =
+                              mem.intent.targetIds?.includes(entId);
+                            return (
+                              <button
+                                key={entId}
+                                type="button"
+                                onClick={() => {
+                                  const copy = [...entities];
+                                  const targets =
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].intent.targetIds || [];
+                                  if (targets.includes(entId)) {
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].intent.targetIds = targets.filter(
+                                      (t) => t !== entId,
+                                    );
+                                  } else {
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].intent.targetIds = [...targets, entId];
+                                  }
+                                  setEntities(copy);
+                                }}
+                                className={`px-1.5 py-0.5 rounded text-[9px] font-mono border transition-all cursor-pointer ${
+                                  isSelected
+                                    ? "bg-primary/20 border-primary text-primary"
+                                    : "bg-background border-border/30 text-muted-foreground hover:bg-secondary"
+                                }`}
+                              >
+                                {getEntityDisplayNameById(entId, entities)}
+                              </button>
+                            );
+                          })}
+                      </div>
+                    </div>
+
+                    {/* Action Validation outcome */}
+                    {mem.intent.type === "action" && (
+                      <div className="border-t border-border/20 pt-2 space-y-2">
+                        <Label className="text-[10px] text-muted-foreground flex items-center gap-1.5 cursor-pointer">
+                          <Checkbox
+                            checked={!!mem.outcome}
+                            onCheckedChange={(checked) => {
+                              const copy = [...entities];
+                              if (checked) {
+                                copy[selectedEntIndex].initialMemories[
+                                  memIdx
+                                ].outcome = { isValid: true, reason: "" };
+                              } else {
+                                copy[selectedEntIndex].initialMemories[
+                                  memIdx
+                                ].outcome = undefined;
+                              }
+                              setEntities(copy);
+                            }}
+                          />
+                          Include validation outcome
+                        </Label>
+                        {mem.outcome && (
+                          <div className="grid grid-cols-3 gap-2 bg-secondary/15 p-2 rounded">
+                            <div className="col-span-1 flex flex-col justify-center">
+                              <Label className="text-[9px] mb-1">isValid</Label>
+                              <Checkbox
+                                checked={mem.outcome.isValid}
+                                onCheckedChange={(checked) => {
+                                  const copy = [...entities];
+                                  if (
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].outcome
+                                  ) {
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].outcome!.isValid = !!checked;
+                                    setEntities(copy);
+                                  }
+                                }}
+                              />
+                            </div>
+                            <div className="col-span-2 space-y-1">
+                              <Label className="text-[9px]">Reason</Label>
+                              <Input
+                                placeholder="Reason for valid/invalid status"
+                                value={mem.outcome.reason}
+                                onChange={(e) => {
+                                  const copy = [...entities];
+                                  if (
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].outcome
+                                  ) {
+                                    copy[selectedEntIndex].initialMemories[
+                                      memIdx
+                                    ].outcome!.reason = e.target.value;
+                                    setEntities(copy);
+                                  }
+                                }}
+                                className="h-6 text-[10px]"
+                              />
+                            </div>
+                          </div>
+                        )}
+                      </div>
+                    )}
+                  </div>
+                ))}
+              </div>
+            )}
+          </div>
+        </div>
+      ) : (
+        <div className="md:col-span-3 border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] text-center text-xs text-muted-foreground">
+          No entities defined.
+        </div>
+      )}
+    </div>
+  );
+}

apps/gui/src/components/builder/JsonTab.tsx

@@ -0,0 +1,38 @@
+"use client";
+
+import { Button } from "@/components/ui/button";
+
+interface JsonTabProps {
+  compiledScenario: Record<string, unknown>;
+  onCopySuccess: () => void;
+}
+
+export function JsonTab({ compiledScenario, onCopySuccess }: JsonTabProps) {
+  return (
+    <div className="flex-1 flex flex-col border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] min-h-[400px]">
+      <div className="flex justify-between items-center border-b border-border/20 pb-3 mb-4">
+        <h2 className="text-body-lg text-primary font-bold">
+          Scenario JSON Code Output
+        </h2>
+        <div className="flex gap-2">
+          <Button
+            variant="outline"
+            size="sm"
+            onClick={() => {
+              navigator.clipboard.writeText(
+                JSON.stringify(compiledScenario, null, 2),
+              );
+              onCopySuccess();
+            }}
+            className="h-8 text-xs cursor-pointer"
+          >
+            Copy to Clipboard
+          </Button>
+        </div>
+      </div>
+      <pre className="flex-1 bg-black border border-border/10 p-4 rounded overflow-auto font-mono text-xs text-emerald-400 select-text leading-relaxed">
+        {JSON.stringify(compiledScenario, null, 2)}
+      </pre>
+    </div>
+  );
+}

apps/gui/src/components/builder/LocationsTab.tsx

@@ -0,0 +1,419 @@
+"use client";
+
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import {
+  Combobox,
+  ComboboxContent,
+  ComboboxEmpty,
+  ComboboxInput,
+  ComboboxItem,
+  ComboboxList,
+} from "@/components/ui/combobox";
+import { AttributeEditor } from "./AttributeEditor";
+import { Plus, Trash2 } from "lucide-react";
+import type { LocationData, ConnectionData, EntityData } from "./types";
+import { getLocationDisplayName, getLocationDisplayNameById } from "./utils";
+import { WorldMap } from "./WorldMap";
+
+interface LocationsTabProps {
+  locations: LocationData[];
+  setLocations: (locs: LocationData[]) => void;
+  entities: EntityData[];
+  locationIds: string[];
+  entityIds: string[];
+  selectedLocIndex: number;
+  setSelectedLocIndex: (idx: number) => void;
+  generateUUID: () => string;
+}
+
+export function LocationsTab({
+  locations,
+  setLocations,
+  entities,
+  locationIds,
+  entityIds,
+  selectedLocIndex,
+  setSelectedLocIndex,
+  generateUUID,
+}: LocationsTabProps) {
+  const addLocationConnection = (locIndex: number) => {
+    const copy = [...locations];
+    copy[locIndex].connections = [
+      ...copy[locIndex].connections,
+      {
+        targetId:
+          locationIds.filter((id) => id !== locations[locIndex].id)[0] || "",
+        visionProp: 10,
+        soundProp: 10,
+        bidirectional: true,
+      },
+    ];
+    setLocations(copy);
+  };
+
+  const updateLocationConnection = <K extends keyof ConnectionData>(
+    locIndex: number,
+    connIndex: number,
+    key: K,
+    val: ConnectionData[K],
+  ) => {
+    const copy = [...locations];
+    copy[locIndex].connections[connIndex] = {
+      ...copy[locIndex].connections[connIndex],
+      [key]: val,
+    };
+    setLocations(copy);
+  };
+
+  const removeLocationConnection = (locIndex: number, connIndex: number) => {
+    const copy = [...locations];
+    copy[locIndex].connections = copy[locIndex].connections.filter(
+      (_, i) => i !== connIndex,
+    );
+    setLocations(copy);
+  };
+
+  const selectedLoc = locations[selectedLocIndex];
+
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-4 gap-8 items-start min-h-0 pb-12">
+      {/* Map Visualizer */}
+      {locations.length > 0 && (
+        <div className="md:col-span-4 w-full">
+          <WorldMap
+            locations={locations}
+            selectedLocId={selectedLoc?.id}
+            onSelectLocId={(id) => {
+              const idx = locations.findIndex((l) => l.id === id);
+              if (idx !== -1) setSelectedLocIndex(idx);
+            }}
+          />
+        </div>
+      )}
+
+      {/* Left sidebar: Locations list */}
+      <div className="md:col-span-1 border border-border/20 bg-card shadow-[2px_2px_0_0_var(--border)] flex flex-col max-h-[500px]">
+        <div className="p-3 border-b border-border/25 flex justify-between items-center bg-secondary/15">
+          <strong className="text-xs font-mono uppercase tracking-wider text-muted-foreground">
+            Locations
+          </strong>
+          <Button
+            type="button"
+            size="sm"
+            onClick={() => {
+              const newId = generateUUID();
+              setLocations([
+                ...locations,
+                { id: newId, attributes: [], connections: [] },
+              ]);
+              setSelectedLocIndex(locations.length);
+            }}
+            className="h-6 text-[10px] px-2 flex gap-1 cursor-pointer"
+          >
+            <Plus className="size-3" /> Add
+          </Button>
+        </div>
+        <div className="overflow-y-auto divide-y divide-border/10 flex-1">
+          {locations.map((loc, idx) => (
+            <div
+              key={idx}
+              onClick={() => setSelectedLocIndex(idx)}
+              className={`p-3 text-xs font-mono cursor-pointer flex justify-between items-center transition-all ${
+                selectedLocIndex === idx
+                  ? "bg-primary/10 text-primary font-bold border-l-4 border-primary"
+                  : "hover:bg-secondary/40 text-foreground"
+              }`}
+            >
+              <span className="truncate">
+                {getLocationDisplayName(loc) || `(Empty ID)`}
+              </span>
+              {locations.length > 1 && (
+                <button
+                  type="button"
+                  onClick={(e) => {
+                    e.stopPropagation();
+                    const newLocs = locations.filter((_, i) => i !== idx);
+                    setLocations(newLocs);
+                    setSelectedLocIndex(Math.max(0, idx - 1));
+                  }}
+                  className="text-muted-foreground hover:text-destructive transition-colors pl-2 cursor-pointer"
+                >
+                  <Trash2 className="size-3.5" />
+                </button>
+              )}
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* Right panel wrapper */}
+      <div className="md:col-span-3 space-y-6">
+        {selectedLoc ? (
+          <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] grid grid-cols-1 lg:grid-cols-2 gap-6">
+            {/* Basic location fields */}
+            <div className="space-y-4">
+              <h2 className="text-body-lg text-primary font-bold border-b border-border/20 pb-2">
+                Location Configuration
+              </h2>
+
+              <div className="space-y-1.5">
+                <Label>Location ID</Label>
+                <Input
+                  value={selectedLoc.id}
+                  readOnly
+                  className="font-mono text-xs bg-muted cursor-not-allowed text-muted-foreground"
+                />
+              </div>
+
+              <div className="space-y-1.5">
+                <Label>Parent Location (Optional)</Label>
+                <Combobox
+                  items={locationIds.filter((id) => id !== selectedLoc.id)}
+                  value={selectedLoc.parentId || ""}
+                  onValueChange={(value) => {
+                    const copy = [...locations];
+                    copy[selectedLocIndex].parentId = value || undefined;
+                    setLocations(copy);
+                  }}
+                >
+                  <ComboboxInput
+                    placeholder="Select a parent location..."
+                    showClear
+                  />
+                  <ComboboxContent>
+                    <ComboboxEmpty>No locations found.</ComboboxEmpty>
+                    <ComboboxList>
+                      {(id: string) => (
+                        <ComboboxItem key={id} value={id}>
+                          {getLocationDisplayNameById(id, locations)}
+                        </ComboboxItem>
+                      )}
+                    </ComboboxList>
+                  </ComboboxContent>
+                </Combobox>
+              </div>
+
+              {/* Attributes for Location */}
+              <div className="pt-2">
+                <AttributeEditor
+                  title="Location Attributes"
+                  attributes={selectedLoc.attributes || []}
+                  onChange={(newAttrs) => {
+                    const copy = [...locations];
+                    copy[selectedLocIndex].attributes = newAttrs;
+                    setLocations(copy);
+                  }}
+                  onAdd={() => {
+                    const copy = [...locations];
+                    copy[selectedLocIndex].attributes = [
+                      ...copy[selectedLocIndex].attributes,
+                      {
+                        name: "",
+                        value: "",
+                        visibility: "PUBLIC",
+                        allowedEntities: [],
+                      },
+                    ];
+                    setLocations(copy);
+                  }}
+                  entityIds={entityIds}
+                  entities={entities}
+                />
+              </div>
+            </div>
+
+            {/* Connections (spatial paths) */}
+            <div className="space-y-4 border-t lg:border-t-0 lg:border-l border-border/20 lg:pl-6 pt-4 lg:pt-0">
+              <div className="flex justify-between items-center border-b border-border/20 pb-2">
+                <h3 className="text-body-md text-foreground font-bold">
+                  Connections / Portals
+                </h3>
+                <Button
+                  type="button"
+                  size="sm"
+                  variant="outline"
+                  onClick={() => addLocationConnection(selectedLocIndex)}
+                  className="h-7 text-xs flex gap-1 cursor-pointer"
+                >
+                  <Plus className="size-3" /> Add Connection
+                </Button>
+              </div>
+
+              {!selectedLoc.connections ||
+              selectedLoc.connections.length === 0 ? (
+                <p className="text-xs text-muted-foreground italic">
+                  No connections leading from this location.
+                </p>
+              ) : (
+                <div className="space-y-4 overflow-y-auto max-h-[400px] pr-1">
+                  {selectedLoc.connections.map((conn, connIdx) => (
+                    <div
+                      key={connIdx}
+                      className="border border-border/20 bg-secondary/10 p-3 rounded space-y-3 relative group"
+                    >
+                      <button
+                        type="button"
+                        onClick={() =>
+                          removeLocationConnection(selectedLocIndex, connIdx)
+                        }
+                        className="absolute top-2 right-2 text-muted-foreground hover:text-destructive cursor-pointer"
+                        title="Delete connection"
+                      >
+                        <Trash2 className="size-3.5" />
+                      </button>
+
+                      <div className="grid grid-cols-1 md:grid-cols-2 gap-2 pr-6">
+                        <div className="space-y-1">
+                          <span className="text-[10px] font-semibold text-muted-foreground">
+                            Target Location
+                          </span>
+                          <Combobox
+                            items={locationIds.filter(
+                              (id) => id !== selectedLoc.id,
+                            )}
+                            value={conn.targetId}
+                            onValueChange={(value) =>
+                              updateLocationConnection(
+                                selectedLocIndex,
+                                connIdx,
+                                "targetId",
+                                value ?? "",
+                              )
+                            }
+                          >
+                            <ComboboxInput
+                              placeholder="Choose target..."
+                              showClear
+                            />
+                            <ComboboxContent>
+                              <ComboboxEmpty>No locations found.</ComboboxEmpty>
+                              <ComboboxList>
+                                {(id: string) => (
+                                  <ComboboxItem key={id} value={id}>
+                                    {getLocationDisplayNameById(id, locations)}
+                                  </ComboboxItem>
+                                )}
+                              </ComboboxList>
+                            </ComboboxContent>
+                          </Combobox>
+                        </div>
+
+                        <div className="space-y-1">
+                          <span className="text-[10px] font-semibold text-muted-foreground">
+                            Portal Name
+                          </span>
+                          <Input
+                            placeholder="e.g. wooden door"
+                            value={conn.portalName || ""}
+                            onChange={(e) =>
+                              updateLocationConnection(
+                                selectedLocIndex,
+                                connIdx,
+                                "portalName",
+                                e.target.value,
+                              )
+                            }
+                            className="h-7 text-xs"
+                          />
+                        </div>
+                      </div>
+
+                      <div className="space-y-1">
+                        <span className="text-[10px] font-semibold text-muted-foreground">
+                          Portal State
+                        </span>
+                        <Input
+                          placeholder="e.g. locked, closed, heavy iron gate"
+                          value={conn.portalStateDescriptor || ""}
+                          onChange={(e) =>
+                            updateLocationConnection(
+                              selectedLocIndex,
+                              connIdx,
+                              "portalStateDescriptor",
+                              e.target.value,
+                            )
+                          }
+                          className="h-7 text-xs"
+                        />
+                      </div>
+
+                      <div className="grid grid-cols-2 gap-4 text-xs">
+                        <div className="space-y-1">
+                          <span className="text-[10px] font-semibold text-muted-foreground block">
+                            Vision Propagation ({conn.visionProp})
+                          </span>
+                          <input
+                            type="range"
+                            min="0"
+                            max="10"
+                            value={conn.visionProp}
+                            onChange={(e) =>
+                              updateLocationConnection(
+                                selectedLocIndex,
+                                connIdx,
+                                "visionProp",
+                                Number(e.target.value),
+                              )
+                            }
+                            className="w-full h-1 bg-secondary rounded-lg appearance-none cursor-pointer accent-primary"
+                          />
+                        </div>
+
+                        <div className="space-y-1">
+                          <span className="text-[10px] font-semibold text-muted-foreground block">
+                            Sound Propagation ({conn.soundProp})
+                          </span>
+                          <input
+                            type="range"
+                            min="0"
+                            max="10"
+                            value={conn.soundProp}
+                            onChange={(e) =>
+                              updateLocationConnection(
+                                selectedLocIndex,
+                                connIdx,
+                                "soundProp",
+                                Number(e.target.value),
+                              )
+                            }
+                            className="w-full h-1 bg-secondary rounded-lg appearance-none cursor-pointer accent-primary"
+                          />
+                        </div>
+                      </div>
+
+                      <div className="flex items-center gap-2">
+                        <Label className="text-[11px] text-muted-foreground flex items-center gap-1.5 cursor-pointer">
+                          <Checkbox
+                            checked={conn.bidirectional}
+                            onCheckedChange={(checked) =>
+                              updateLocationConnection(
+                                selectedLocIndex,
+                                connIdx,
+                                "bidirectional",
+                                !!checked,
+                              )
+                            }
+                          />
+                          Bidirectional Connection (creates reverse path
+                          automatically)
+                        </Label>
+                      </div>
+                    </div>
+                  ))}
+                </div>
+              )}
+            </div>
+          </div>
+        ) : (
+          <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] text-center py-12 text-xs text-muted-foreground">
+            No location selected. Choose a location from the sidebar to edit, or
+            view the world layout below.
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

apps/gui/src/components/builder/MetadataTab.tsx

@@ -0,0 +1,163 @@
+"use client";
+
+import { useMemo } from "react";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Textarea } from "@/components/ui/textarea";
+import { AttributeEditor } from "./AttributeEditor";
+import type { AttributeData, EntityData } from "./types";
+
+interface MetadataTabProps {
+  scenarioId: string;
+  setScenarioId: (val: string) => void;
+  name: string;
+  setName: (val: string) => void;
+  description: string;
+  setDescription: (val: string) => void;
+  startTime: string;
+  setStartTime: (val: string) => void;
+  worldAttributes: AttributeData[];
+  setWorldAttributes: (attrs: AttributeData[]) => void;
+  entityIds: string[];
+  entities: EntityData[];
+}
+
+export function MetadataTab({
+  scenarioId,
+  name,
+  setName,
+  description,
+  setDescription,
+  startTime,
+  setStartTime,
+  worldAttributes,
+  setWorldAttributes,
+  entityIds,
+  entities,
+}: MetadataTabProps) {
+  const addWorldAttribute = () => {
+    setWorldAttributes([
+      ...worldAttributes,
+      { name: "", value: "", visibility: "PUBLIC", allowedEntities: [] },
+    ]);
+  };
+
+  // Parse initial state from ISO string (or fallback to now)
+  const parsedDate = useMemo(() => {
+    try {
+      const d = new Date(startTime);
+      if (isNaN(d.getTime())) return new Date();
+      return d;
+    } catch {
+      return new Date();
+    }
+  }, [startTime]);
+
+  const dateValue = useMemo(() => {
+    return parsedDate.toISOString().split("T")[0];
+  }, [parsedDate]);
+
+  const timeValue = useMemo(() => {
+    return parsedDate.toISOString().split("T")[1].slice(0, 8);
+  }, [parsedDate]);
+
+  const handleDateChange = (newDateStr: string) => {
+    if (!newDateStr) return;
+    const combined = `${newDateStr}T${timeValue}.000Z`;
+    setStartTime(combined);
+  };
+
+  const handleTimeChange = (newTimeStr: string) => {
+    if (!newTimeStr) return;
+    const formattedTime =
+      newTimeStr.split(":").length === 2 ? `${newTimeStr}:00` : newTimeStr;
+    const combined = `${dateValue}T${formattedTime}.000Z`;
+    setStartTime(combined);
+  };
+
+  return (
+    <div className="grid grid-cols-1 lg:grid-cols-3 gap-8 pb-12">
+      {/* Basic Fields */}
+      <div className="lg:col-span-2 space-y-5 border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
+        <h2 className="text-body-lg text-primary font-bold border-b border-border/20 pb-2">
+          Scenario Metadata
+        </h2>
+
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="space-y-1.5">
+            <Label htmlFor="sc-id">Scenario Template ID</Label>
+            <Input
+              id="sc-id"
+              value={scenarioId}
+              readOnly
+              className="font-mono text-xs bg-muted cursor-not-allowed text-muted-foreground"
+            />
+            <span className="text-[10px] text-muted-foreground">
+              Unique filename ID. Alphanumeric, hyphens and underscores only.
+            </span>
+          </div>
+
+          <div className="space-y-1.5">
+            <Label>Start Time</Label>
+            <div className="flex gap-2">
+              <div className="flex-1 space-y-1">
+                <Input
+                  type="date"
+                  value={dateValue}
+                  onChange={(e) => handleDateChange(e.target.value)}
+                  className="text-xs font-mono"
+                />
+              </div>
+              <div className="flex-1 space-y-1">
+                <Input
+                  type="time"
+                  step="1"
+                  value={timeValue}
+                  onChange={(e) => handleTimeChange(e.target.value)}
+                  className="text-xs font-mono"
+                />
+              </div>
+            </div>
+            <span className="text-[10px] text-muted-foreground">
+              Global clock starting date and time (stored in ISO UTC).
+            </span>
+          </div>
+        </div>
+
+        <div className="space-y-1.5">
+          <Label htmlFor="sc-name">Scenario Name</Label>
+          <Input
+            id="sc-name"
+            placeholder="e.g. The Quiet Tavern"
+            value={name}
+            onChange={(e) => setName(e.target.value)}
+            className="text-xs"
+          />
+        </div>
+
+        <div className="space-y-1.5">
+          <Label htmlFor="sc-desc">Description</Label>
+          <Textarea
+            id="sc-desc"
+            placeholder="Describe the starting setup..."
+            value={description}
+            onChange={(e) => setDescription(e.target.value)}
+            className="text-xs h-24"
+          />
+        </div>
+      </div>
+
+      {/* World level Attributes */}
+      <div className="border border-border/20 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
+        <AttributeEditor
+          title="World Attributes"
+          attributes={worldAttributes}
+          onChange={setWorldAttributes}
+          onAdd={addWorldAttribute}
+          entityIds={entityIds}
+          entities={entities}
+        />
+      </div>
+    </div>
+  );
+}

apps/gui/src/components/builder/WorldMap.tsx

@@ -0,0 +1,528 @@
+"use client";
+
+import { useState, useMemo, useRef } from "react";
+import { Button } from "@/components/ui/button";
+import { ZoomIn, ZoomOut, RotateCcw } from "lucide-react";
+import type { LocationData } from "./types";
+
+interface BoxNode {
+  id: string;
+  name: string;
+  width: number;
+  height: number;
+  x: number;
+  y: number;
+  children: BoxNode[];
+  location: LocationData;
+}
+
+interface WorldMapProps {
+  locations: LocationData[];
+  selectedLocId?: string;
+  onSelectLocId: (id: string) => void;
+}
+
+export function WorldMap({
+  locations,
+  selectedLocId,
+  onSelectLocId,
+}: WorldMapProps) {
+  // Zoom and Pan States for Visualizer
+  const [zoom, setZoom] = useState(1);
+  const [pan, setPan] = useState({ x: 0, y: 0 });
+  const [isPanning, setIsPanning] = useState(false);
+  const panStartRef = useRef({ x: 0, y: 0 });
+
+  const handleMouseDown = (e: React.MouseEvent<SVGSVGElement>) => {
+    if (e.button === 0) {
+      setIsPanning(true);
+      panStartRef.current = { x: e.clientX - pan.x, y: e.clientY - pan.y };
+    }
+  };
+
+  const handleMouseMove = (e: React.MouseEvent<SVGSVGElement>) => {
+    if (isPanning) {
+      setPan({
+        x: e.clientX - panStartRef.current.x,
+        y: e.clientY - panStartRef.current.y,
+      });
+    }
+  };
+
+  const handleMouseUp = () => {
+    setIsPanning(false);
+  };
+
+  // Build tree and layout computation
+  const { roots, nodeMap } = useMemo(() => {
+    const nodeMap = new Map<string, BoxNode>();
+
+    // 1. Initialize all nodes
+    locations.forEach((loc) => {
+      const nameAttr = loc.attributes?.find(
+        (a) => a.name.toLowerCase() === "name",
+      )?.value;
+      const name = nameAttr ? nameAttr : loc.id;
+      nodeMap.set(loc.id, {
+        id: loc.id,
+        name,
+        width: 0,
+        height: 0,
+        x: 0,
+        y: 0,
+        children: [],
+        location: loc,
+      });
+    });
+
+    const roots: BoxNode[] = [];
+
+    // 2. Link parents and children
+    locations.forEach((loc) => {
+      const node = nodeMap.get(loc.id)!;
+      if (loc.parentId && nodeMap.has(loc.parentId)) {
+        nodeMap.get(loc.parentId)!.children.push(node);
+      } else {
+        roots.push(node);
+      }
+    });
+
+    // 3. Measure recursively
+    const measureNode = (node: BoxNode) => {
+      const textWidth = node.name.length * 7.2 + 24;
+
+      if (node.children.length === 0) {
+        node.width = Math.max(140, textWidth);
+        node.height = 70;
+        return;
+      }
+
+      node.children.forEach((child) => measureNode(child));
+
+      const cols = Math.ceil(Math.sqrt(node.children.length));
+      const rows = Math.ceil(node.children.length / cols);
+
+      const gap = 20;
+      const padLeft = 20;
+      const padRight = 20;
+      const padTop = 45;
+      const padBottom = 20;
+
+      const colWidths = new Array(cols).fill(0);
+      const rowHeights = new Array(rows).fill(0);
+
+      node.children.forEach((child, idx) => {
+        const col = idx % cols;
+        const row = Math.floor(idx / cols);
+        colWidths[col] = Math.max(colWidths[col], child.width);
+        rowHeights[row] = Math.max(rowHeights[row], child.height);
+      });
+
+      const totalGridWidth =
+        colWidths.reduce((sum, w) => sum + w, 0) + (cols - 1) * gap;
+      const totalGridHeight =
+        rowHeights.reduce((sum, h) => sum + h, 0) + (rows - 1) * gap;
+
+      node.width = Math.max(
+        180,
+        totalGridWidth + padLeft + padRight,
+        textWidth,
+      );
+      node.height = Math.max(100, totalGridHeight + padTop + padBottom);
+
+      let yOffset = padTop;
+      for (let r = 0; r < rows; r++) {
+        let xOffset = padLeft;
+        for (let c = 0; c < cols; c++) {
+          const idx = r * cols + c;
+          if (idx >= node.children.length) break;
+          const child = node.children[idx];
+
+          const cellWidth = colWidths[c];
+          const cellHeight = rowHeights[r];
+          child.x = xOffset + (cellWidth - child.width) / 2;
+          child.y = yOffset + (cellHeight - child.height) / 2;
+
+          xOffset += cellWidth + gap;
+        }
+        yOffset += rowHeights[r] + gap;
+      }
+    };
+
+    roots.forEach((root) => measureNode(root));
+
+    // 4. Position roots and assign global coordinates
+    const assignGlobalCoordinates = (
+      node: BoxNode,
+      parentX: number,
+      parentY: number,
+    ) => {
+      node.x += parentX;
+      node.y += parentY;
+      node.children.forEach((child) => {
+        assignGlobalCoordinates(child, node.x, node.y);
+      });
+    };
+
+    const cols = Math.ceil(Math.sqrt(roots.length));
+    const gap = 40;
+
+    const colWidths = new Array(cols).fill(0);
+    const rowHeights: number[] = [];
+
+    roots.forEach((root, idx) => {
+      const col = idx % cols;
+      const row = Math.floor(idx / cols);
+      colWidths[col] = Math.max(colWidths[col], root.width);
+      if (rowHeights[row] === undefined) rowHeights[row] = 0;
+      rowHeights[row] = Math.max(rowHeights[row], root.height);
+    });
+
+    let yOffset = 40;
+    let maxWidth = 0;
+
+    for (let r = 0; r < rowHeights.length; r++) {
+      let xOffset = 40;
+      for (let c = 0; c < cols; c++) {
+        const idx = r * cols + c;
+        if (idx >= roots.length) break;
+        const root = roots[idx];
+
+        root.x = xOffset;
+        root.y = yOffset;
+
+        assignGlobalCoordinates(root, 0, 0);
+        xOffset += colWidths[c] + gap;
+      }
+      yOffset += rowHeights[r] + gap;
+      maxWidth = Math.max(maxWidth, xOffset);
+    }
+
+    return { roots, nodeMap };
+  }, [locations]);
+
+  // Connection lines computation
+  const connectionLines = useMemo(() => {
+    const lines: {
+      id: string;
+      x1: number;
+      y1: number;
+      x2: number;
+      y2: number;
+      portalName?: string;
+      portalState?: string;
+      vision?: number;
+      sound?: number;
+      bidirectional?: boolean;
+      sourceId: string;
+      targetId: string;
+    }[] = [];
+    const seen = new Set<string>();
+
+    locations.forEach((loc) => {
+      const nodeA = nodeMap.get(loc.id);
+      if (!nodeA) return;
+
+      loc.connections?.forEach((conn, cIdx) => {
+        const nodeB = nodeMap.get(conn.targetId);
+        if (!nodeB) return;
+
+        const isParentChild =
+          loc.parentId === conn.targetId || nodeB.location.parentId === loc.id;
+        if (isParentChild) return;
+
+        const sortedIds = [loc.id, conn.targetId].sort();
+        const key = conn.bidirectional
+          ? `bidi-${sortedIds[0]}-${sortedIds[1]}`
+          : `uni-${loc.id}-${conn.targetId}`;
+
+        if (seen.has(key)) return;
+        seen.add(key);
+
+        const x1 = nodeA.x + nodeA.width / 2;
+        const y1 = nodeA.y + nodeA.height / 2;
+        const x2 = nodeB.x + nodeB.width / 2;
+        const y2 = nodeB.y + nodeB.height / 2;
+
+        lines.push({
+          id: `${loc.id}-${conn.targetId}-${cIdx}`,
+          x1,
+          y1,
+          x2,
+          y2,
+          portalName: conn.portalName,
+          portalState: conn.portalStateDescriptor,
+          vision: conn.visionProp,
+          sound: conn.soundProp,
+          bidirectional: conn.bidirectional,
+          sourceId: loc.id,
+          targetId: conn.targetId,
+        });
+      });
+    });
+
+    return lines;
+  }, [locations, nodeMap]);
+
+  // Recursive render helper for boxes
+  const renderNode = (node: BoxNode) => {
+    const isSelected = selectedLocId === node.id;
+
+    // Find parent connection details
+    const parentLoc = locations.find((l) => l.id === node.location.parentId);
+    const childToParentConn = node.location.parentId
+      ? node.location.connections?.find(
+          (c) => c.targetId === node.location.parentId,
+        )
+      : undefined;
+    const parentToChildConn =
+      node.location.parentId && parentLoc
+        ? parentLoc.connections?.find((c) => c.targetId === node.id)
+        : undefined;
+
+    const hasParentConn = !!(childToParentConn || parentToChildConn);
+    const portalName =
+      childToParentConn?.portalName || parentToChildConn?.portalName;
+
+    return (
+      <g key={node.id}>
+        {/* Box */}
+        <rect
+          x={node.x}
+          y={node.y}
+          width={node.width}
+          height={node.height}
+          rx={8}
+          onClick={(e) => {
+            e.stopPropagation();
+            onSelectLocId(node.id);
+          }}
+          className={`transition-all cursor-pointer ${
+            isSelected
+              ? "fill-primary/5 stroke-primary stroke-2"
+              : node.children.length > 0
+                ? "fill-secondary/5 stroke-border/40 hover:stroke-border/80"
+                : "fill-secondary/20 stroke-border/40 hover:stroke-foreground/40 hover:fill-secondary/30"
+          }`}
+          style={{ strokeWidth: isSelected ? 2 : 1 }}
+          strokeDasharray={
+            hasParentConn
+              ? "4, 4"
+              : node.children.length > 0
+                ? "3, 3"
+                : undefined
+          }
+        />
+
+        {/* Label */}
+        <text
+          x={node.x + 12}
+          y={node.y + 24}
+          className={`text-xs font-mono select-none font-semibold ${
+            isSelected ? "fill-primary font-bold" : "fill-muted-foreground"
+          }`}
+        >
+          {node.name}
+        </text>
+
+        {/* Portal Name on Boundary of Child */}
+        {hasParentConn && portalName && (
+          <g transform={`translate(${node.x + node.width / 2}, ${node.y})`}>
+            <rect
+              x={-((portalName.length * 5) / 2) - 4}
+              y={-6}
+              width={portalName.length * 5 + 8}
+              height={12}
+              rx={3}
+              className="fill-zinc-900 stroke stroke-border/40"
+              style={{ strokeWidth: 0.5 }}
+            />
+            <text
+              textAnchor="middle"
+              y={3}
+              className="text-[8px] font-mono fill-primary font-semibold select-none"
+            >
+              {portalName}
+            </text>
+          </g>
+        )}
+
+        {/* Render children inside */}
+        {node.children.map((child) => renderNode(child))}
+      </g>
+    );
+  };
+
+  return (
+    <>
+      {/* Header */}
+      <div className="flex justify-between items-center pb-2">
+        {/* Controls */}
+        <div className="flex gap-1 bg-secondary/15 p-1 rounded border border-border/10">
+          <Button
+            type="button"
+            size="icon"
+            variant="ghost"
+            onClick={() => setZoom((z) => Math.min(4, z + 0.1))}
+            className="size-7 cursor-pointer hover:bg-secondary/40 text-muted-foreground hover:text-foreground"
+            title="Zoom In"
+          >
+            <ZoomIn className="size-4" />
+          </Button>
+          <Button
+            type="button"
+            size="icon"
+            variant="ghost"
+            onClick={() => setZoom((z) => Math.max(0.3, z - 0.1))}
+            className="size-7 cursor-pointer hover:bg-secondary/40 text-muted-foreground hover:text-foreground"
+            title="Zoom Out"
+          >
+            <ZoomOut className="size-4" />
+          </Button>
+          <Button
+            type="button"
+            size="icon"
+            variant="ghost"
+            onClick={() => {
+              setZoom(1);
+              setPan({ x: 0, y: 0 });
+            }}
+            className="size-7 cursor-pointer hover:bg-secondary/40 text-muted-foreground hover:text-foreground"
+            title="Reset view"
+          >
+            <RotateCcw className="size-4" />
+          </Button>
+        </div>
+      </div>
+
+      {/* Canvas container */}
+      <div className="relative border border-border/35 bg-zinc-950/95 rounded-lg overflow-hidden h-[450px]">
+        <svg
+          width="100%"
+          height="100%"
+          onMouseDown={handleMouseDown}
+          onMouseMove={handleMouseMove}
+          onMouseUp={handleMouseUp}
+          onMouseLeave={handleMouseUp}
+          className={`w-full h-full select-none ${
+            isPanning ? "cursor-grabbing" : "cursor-grab"
+          }`}
+        >
+          <defs>
+            <pattern
+              id="grid-pattern"
+              width="40"
+              height="40"
+              patternUnits="userSpaceOnUse"
+            >
+              <path
+                d="M 40 0 L 0 0 0 40"
+                fill="none"
+                stroke="currentColor"
+                className="text-muted-foreground/10"
+                strokeWidth="1"
+              />
+            </pattern>
+          </defs>
+
+          {/* Grid Background */}
+          <rect width="100%" height="100%" fill="url(#grid-pattern)" />
+
+          {/* Draggable/scalable group */}
+          <g transform={`translate(${pan.x}, ${pan.y}) scale(${zoom})`}>
+            {/* Draw Connection Lines first so they are behind boxes */}
+            {connectionLines.map((line) => {
+              const isSourceSelected = selectedLocId === line.sourceId;
+              const isTargetSelected = selectedLocId === line.targetId;
+              const isHighlighted = isSourceSelected || isTargetSelected;
+
+              const mx = (line.x1 + line.x2) / 2;
+              const my = (line.y1 + line.y2) / 2;
+              const angle =
+                Math.atan2(line.y2 - line.y1, line.x2 - line.x1) *
+                (180 / Math.PI);
+
+              return (
+                <g key={line.id} className="transition-all">
+                  {/* Glow path for highlighted connections */}
+                  {isHighlighted && (
+                    <line
+                      x1={line.x1}
+                      y1={line.y1}
+                      x2={line.x2}
+                      y2={line.y2}
+                      className="stroke-primary/30 stroke-[4px] blur-sm animate-pulse"
+                    />
+                  )}
+
+                  {/* Main Connection Line */}
+                  <line
+                    x1={line.x1}
+                    y1={line.y1}
+                    x2={line.x2}
+                    y2={line.y2}
+                    className={`transition-all ${
+                      isHighlighted
+                        ? "stroke-primary stroke-2"
+                        : "stroke-border/40 stroke-1"
+                    }`}
+                    style={{
+                      strokeDasharray: line.bidirectional ? undefined : "4, 4",
+                    }}
+                  />
+
+                  {/* Midpoint Direction Arrow for Uni-directional connections */}
+                  {!line.bidirectional && (
+                    <g transform={`translate(${mx}, ${my}) rotate(${angle})`}>
+                      <path
+                        d="M -4 -3.5 L 4 0 L -4 3.5 Z"
+                        className={
+                          isHighlighted
+                            ? "fill-primary"
+                            : "fill-muted-foreground/60"
+                        }
+                      />
+                    </g>
+                  )}
+
+                  {/* Portal Name Label bubble */}
+                  {line.portalName && (
+                    <g
+                      transform={`translate(${mx}, ${my - 12})`}
+                      className="cursor-default"
+                    >
+                      <rect
+                        x={-((line.portalName.length * 6) / 2) - 4}
+                        y={-8}
+                        width={line.portalName.length * 6 + 8}
+                        height={16}
+                        rx={4}
+                        className="fill-background/90 stroke stroke-border/30"
+                        style={{ strokeWidth: 0.5 }}
+                      />
+                      <text
+                        textAnchor="middle"
+                        y={3}
+                        className="text-[9px] font-mono fill-muted-foreground select-none"
+                      >
+                        {line.portalName}
+                      </text>
+                    </g>
+                  )}
+                </g>
+              );
+            })}
+
+            {/* Draw Box Nodes recursively */}
+            {roots.map((root) => renderNode(root))}
+          </g>
+        </svg>
+
+        {/* Map Hint Overlay */}
+        <div className="absolute bottom-2 right-2 px-2 py-1 rounded bg-black/60 border border-border/20 text-[9.5px] text-muted-foreground font-mono pointer-events-none">
+          Drag to pan • Scroll or buttons to zoom • Click boxes to select
+        </div>
+      </div>
+    </>
+  );
+}

apps/gui/src/components/builder/types.ts

@@ -0,0 +1,50 @@
+export interface AttributeData {
+  name: string;
+  value: string;
+  visibility: "PUBLIC" | "PRIVATE";
+  allowedEntities: string[];
+}
+
+export interface ConnectionData {
+  targetId: string;
+  portalName?: string;
+  portalStateDescriptor?: string;
+  visionProp: number;
+  soundProp: number;
+  bidirectional: boolean;
+}
+
+export interface LocationData {
+  id: string;
+  parentId?: string;
+  attributes: AttributeData[];
+  connections: ConnectionData[];
+}
+
+export interface MemoryData {
+  id: string;
+  timestamp: string;
+  locationId: string | null;
+  intent: {
+    type: "dialogue" | "action" | "monologue";
+    originalText: string;
+    description: string;
+    selfDescription?: string;
+    actorId: string;
+    targetIds: string[];
+    modifiers?: string[];
+  };
+  outcome?: {
+    isValid: boolean;
+    reason: string;
+  };
+}
+
+export interface EntityData {
+  id: string;
+  locationId?: string;
+  attributes: AttributeData[];
+  aliases: Record<string, string>;
+  initialMemories: MemoryData[];
+  isAgent?: boolean;
+}

apps/gui/src/components/builder/utils.ts

@@ -0,0 +1,45 @@
+import type { EntityData, LocationData } from "./types";
+
+export function getEntityDisplayName(
+  entity: EntityData | undefined,
+  fallbackId: string = "",
+): string {
+  if (!entity) return fallbackId;
+  const nameAttr = entity.attributes?.find(
+    (a) => a.name.toLowerCase() === "name",
+  );
+  if (nameAttr?.value) {
+    return `${nameAttr.value} (${entity.id})`;
+  }
+  return entity.id;
+}
+
+export function getEntityDisplayNameById(
+  id: string,
+  entities: EntityData[],
+): string {
+  const entity = entities.find((e) => e.id === id);
+  return getEntityDisplayName(entity, id);
+}
+
+export function getLocationDisplayName(
+  location: LocationData | undefined,
+  fallbackId: string = "",
+): string {
+  if (!location) return fallbackId;
+  const nameAttr = location.attributes?.find(
+    (a) => a.name.toLowerCase() === "name",
+  );
+  if (nameAttr?.value) {
+    return `${nameAttr.value} (${location.id})`;
+  }
+  return location.id;
+}
+
+export function getLocationDisplayNameById(
+  id: string,
+  locations: LocationData[],
+): string {
+  const location = locations.find((l) => l.id === id);
+  return getLocationDisplayName(location, id);
+}

apps/gui/src/components/config/ConfigView.tsx

@@ -0,0 +1,284 @@
+"use client";
+
+import { useEffect, useState, useCallback } from "react";
+import {
+  getConfigStatus,
+  listProviderInstances,
+  getProviderMappings,
+  setProviderMapping,
+  getAvailableProviders,
+  regenerateEmbeddings,
+} from "@/app/actions";
+import type { ModelProviderInstance, ModelProviderMeta } from "@omnia/llm";
+import { ProviderInstancesConfig } from "@/components/config/ProviderInstancesConfig";
+import {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+
+interface ConfigStatus {
+  apiKeySet: boolean;
+  apiKeyPreview: string;
+  model: string;
+  availableScenarios: { path: string; name: string }[];
+}
+
+export function ConfigView() {
+  const [config, setConfig] = useState<ConfigStatus | null>(null);
+  const [instances, setInstances] = useState<ModelProviderInstance[]>([]);
+  const [mappings, setMappings] = useState<Record<string, string>>({});
+  const [availableProviders, setAvailableProviders] = useState<
+    ModelProviderMeta[]
+  >([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState("");
+
+  const loadInstances = useCallback(async () => {
+    const list = await listProviderInstances();
+    setInstances(list);
+  }, []);
+
+  const loadMappings = useCallback(async () => {
+    const maps = await getProviderMappings();
+    setMappings(maps);
+  }, []);
+
+  const loadAll = useCallback(async () => {
+    try {
+      setLoading(true);
+      setError("");
+      const status = await getConfigStatus();
+      setConfig(status);
+      await loadInstances();
+      await loadMappings();
+      const provs = await getAvailableProviders();
+      setAvailableProviders(provs);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setLoading(false);
+    }
+  }, [loadInstances, loadMappings]);
+
+  useEffect(() => {
+    loadAll();
+  }, [loadAll]);
+
+  const handleUpdateMapping = async (
+    task: string,
+    providerInstanceId: string,
+  ) => {
+    if (task === "embeddings" && mappings[task] !== providerInstanceId) {
+      const confirmChange = window.confirm(
+        "Changing the embeddings provider will delete all existing embeddings and regenerate them from scratch. Are you sure you want to do this?",
+      );
+      if (!confirmChange) return;
+    }
+
+    try {
+      setLoading(true);
+      await setProviderMapping(task, providerInstanceId);
+      if (task === "embeddings") {
+        await regenerateEmbeddings(providerInstanceId);
+      }
+      await loadMappings();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="flex-1 overflow-y-auto w-full relative">
+      <div className="relative z-10 mx-auto max-w-[800px] px-10 py-12">
+        <h1 className="mb-6 text-headline-lg text-primary animate-fade-in">
+          Configuration
+        </h1>
+        <h2 className="mb-3 text-headline-md text-foreground">
+          Manage Model Instances
+        </h2>
+        {config === null && loading && (
+          <p className="text-body-md text-muted-foreground">
+            Loading configuration...
+          </p>
+        )}
+        {error && (
+          <div className="mb-4 border border-destructive bg-destructive/10 px-3 py-2 text-sm text-destructive">
+            {error}
+          </div>
+        )}
+
+        {config && (
+          <div
+            className={
+              loading
+                ? "opacity-60 pointer-events-none transition-opacity duration-200"
+                : "transition-opacity duration-200"
+            }
+          >
+            <ProviderInstancesConfig
+              instances={instances}
+              availableProviders={availableProviders}
+              mappings={mappings}
+              onChanged={async () => {
+                await loadInstances();
+                await loadMappings();
+              }}
+            />
+
+            <section className="border-b border-dotted border-border/20 mb-8 pb-8">
+              <h2 className="mb-3 text-headline-md text-foreground">
+                Task Provider Routing
+              </h2>
+              <p className="my-4 border border-border/20 bg-secondary px-3 py-2 text-label-sm text-foreground/80">
+                Configure which LLM Provider Key Instance should handle each
+                specific simulation task. Mappings default to the currently{" "}
+                <strong>Active</strong> instance if not specified.
+              </p>
+              <div className="mt-4 grid grid-cols-1 gap-6 md:grid-cols-2">
+                {[
+                  {
+                    key: "actor-prose",
+                    label: "Actor Prose Generation",
+                    desc: "Generates roleplay/narrative prose for Non-Player Characters.",
+                    type: "generative",
+                  },
+                  {
+                    key: "llm-validator",
+                    label: "LLM Validator",
+                    desc: "Arbitrates and validates proposed actions against the world state rules.",
+                    type: "generative",
+                  },
+                  {
+                    key: "intent-decoder",
+                    label: "Intent Decoder",
+                    desc: "Splits raw prose actions into structured intents (Player and NPC).",
+                    type: "generative",
+                  },
+                  {
+                    key: "timedelta",
+                    label: "TimeDelta Generator",
+                    desc: "Calculates the duration of character actions to advance the game clock.",
+                    type: "generative",
+                  },
+                  {
+                    key: "handoff",
+                    label: "Memory Handoff Engine",
+                    desc: "Promotes entities' working memories to the long-term Ledger via LLM summarization and pruning.",
+                    type: "generative",
+                  },
+                  {
+                    key: "embeddings",
+                    label: "Text Embeddings Generator",
+                    desc: "Generates vector embeddings for long-term memory retrieval.",
+                    type: "embedding",
+                  },
+                ].map((task) => (
+                  <div
+                    key={task.key}
+                    className="flex flex-col justify-between gap-3 border border-border/30 bg-card p-4 shadow-[2px_2px_0_0_var(--border)]"
+                  >
+                    <div className="flex flex-col gap-1">
+                      <strong className="text-body-md text-foreground">
+                        {task.label}
+                      </strong>
+                      <span className="mt-0.5 text-xs text-muted-foreground">
+                        {task.desc}
+                      </span>
+                    </div>
+                    <Select
+                      value={mappings[task.key] || ""}
+                      onValueChange={(value) =>
+                        handleUpdateMapping(task.key, value || "")
+                      }
+                    >
+                      <SelectTrigger className="w-full">
+                        <SelectValue placeholder="-- Use Active Key (Default) --">
+                          {(() => {
+                            const inst = instances.find(
+                              (i) => i.id === mappings[task.key],
+                            );
+                            return inst
+                              ? `${inst.name} (${inst.providerName})${inst.isActive ? " [Active]" : ""}`
+                              : null;
+                          })()}
+                        </SelectValue>
+                      </SelectTrigger>
+                      <SelectContent>
+                        <SelectGroup>
+                          <SelectItem value="">
+                            -- Use Active Key (Default) --
+                          </SelectItem>
+                          {instances
+                            .filter(
+                              (inst) =>
+                                (inst.type || "generative") === task.type,
+                            )
+                            .map((inst) => (
+                              <SelectItem key={inst.id} value={inst.id}>
+                                {inst.name} ({inst.providerName})
+                                {inst.isActive ? " [Active]" : ""}
+                              </SelectItem>
+                            ))}
+                        </SelectGroup>
+                      </SelectContent>
+                    </Select>
+                  </div>
+                ))}
+              </div>
+            </section>
+
+            <section className="mb-8">
+              <h2 className="mb-3 text-headline-md text-foreground">
+                Available Scenarios
+              </h2>
+              {config.availableScenarios.length === 0 ? (
+                <p className="mt-3 border border-accent bg-accent/25 px-3 py-2 text-label-sm text-foreground/80">
+                  No scenarios found in{" "}
+                  <code className="font-mono text-xs">
+                    content/demo/scenarios/
+                  </code>
+                  .
+                </p>
+              ) : (
+                <Table>
+                  <TableHeader>
+                    <TableRow>
+                      <TableHead>Name</TableHead>
+                      <TableHead>Path</TableHead>
+                    </TableRow>
+                  </TableHeader>
+                  <TableBody>
+                    {config.availableScenarios.map((s) => (
+                      <TableRow key={s.path}>
+                        <TableCell className="text-body-md">{s.name}</TableCell>
+                        <TableCell>
+                          <code className="font-mono text-xs text-primary">
+                            {s.path}
+                          </code>
+                        </TableCell>
+                      </TableRow>
+                    ))}
+                  </TableBody>
+                </Table>
+              )}
+            </section>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

apps/gui/src/components/config/ProviderInstancesConfig.tsx

@@ -0,0 +1,480 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import {
+  createProviderInstance,
+  updateProviderInstance,
+  setActiveProviderInstance,
+  regenerateEmbeddings,
+  deleteProviderInstance,
+} from "@/app/actions";
+import type { ModelProviderInstance, ModelProviderMeta } from "@omnia/llm";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Badge } from "@/components/ui/badge";
+import {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Card,
+  CardHeader,
+  CardContent,
+  CardTitle,
+  CardAction,
+} from "@/components/ui/card";
+import {
+  Item,
+  ItemContent,
+  ItemGroup,
+  ItemTitle,
+  ItemDescription,
+} from "@/components/ui/item";
+import { Empty, EmptyTitle, EmptyDescription } from "@/components/ui/empty";
+import { cn } from "@/lib/utils";
+
+interface ProviderInstancesConfigProps {
+  instances: ModelProviderInstance[];
+  availableProviders: ModelProviderMeta[];
+  mappings: Record<string, string>;
+  onChanged: () => Promise<void>;
+}
+
+export function ProviderInstancesConfig({
+  instances,
+  availableProviders,
+  mappings,
+  onChanged,
+}: ProviderInstancesConfigProps) {
+  const [selectedInstanceId, setSelectedInstanceId] = useState<string | null>(
+    null,
+  );
+  const [editName, setEditName] = useState("");
+  const [editProvider, setEditProvider] = useState("google-genai");
+  const [editKey, setEditKey] = useState("");
+  const [editModel, setEditModel] = useState("gemini-2.5-flash");
+  const [editIsActive, setEditIsActive] = useState(false);
+  const [editType, setEditType] = useState<"generative" | "embedding">(
+    "generative",
+  );
+  const [editMaxContext, setEditMaxContext] = useState<number>(32768);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState("");
+
+  useEffect(() => {
+    if (selectedInstanceId === null) {
+      setEditName("");
+      setEditProvider("google-genai");
+      setEditKey("");
+      setEditModel("gemini-2.5-flash");
+      setEditIsActive(false);
+      setEditType("generative");
+      setEditMaxContext(32768);
+    } else if (selectedInstanceId === "new") {
+      setEditName("");
+      const defaultProvider = "google-genai";
+      setEditProvider(defaultProvider);
+      setEditKey("");
+      setEditType("generative");
+      const pMeta = availableProviders.find((p) => p.id === defaultProvider);
+      setEditModel(pMeta?.defaultModel || "gemini-2.5-flash");
+      setEditIsActive(false);
+      setEditMaxContext(32768);
+    } else {
+      const inst = instances.find((i) => i.id === selectedInstanceId);
+      if (inst) {
+        setEditName(inst.name);
+        setEditProvider(inst.providerName);
+        setEditKey("");
+        setEditType(inst.type || "generative");
+        const pMeta = availableProviders.find(
+          (p) => p.id === inst.providerName,
+        );
+        setEditModel(
+          inst.modelName ||
+            (inst.type === "embedding"
+              ? pMeta?.defaultEmbeddingModel
+              : pMeta?.defaultModel) ||
+            "gemini-2.5-flash",
+        );
+        setEditIsActive(inst.isActive);
+        setEditMaxContext(
+          inst.maxContext !== undefined && inst.maxContext !== null
+            ? inst.maxContext
+            : 32768,
+        );
+      }
+    }
+  }, [selectedInstanceId, instances, availableProviders]);
+
+  const handleProviderChange = (providerId: string | null) => {
+    if (!providerId) return;
+    setEditProvider(providerId);
+    const pMeta = availableProviders.find((p) => p.id === providerId);
+    setEditModel(
+      editType === "embedding"
+        ? pMeta?.defaultEmbeddingModel || ""
+        : pMeta?.defaultModel || "",
+    );
+  };
+
+  const handleTypeChange = (type: "generative" | "embedding") => {
+    setEditType(type);
+    const pMeta = availableProviders.find((p) => p.id === editProvider);
+    setEditModel(
+      type === "embedding"
+        ? pMeta?.defaultEmbeddingModel || ""
+        : pMeta?.defaultModel || "",
+    );
+  };
+
+  const handleSave = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!editName.trim()) {
+      setError("Name is required.");
+      return;
+    }
+
+    try {
+      setLoading(true);
+      setError("");
+
+      let shouldRegenerate = false;
+      let targetInstanceId = selectedInstanceId;
+
+      if (selectedInstanceId === "new") {
+        if (!editKey.trim()) {
+          setError("API Key is required for new instances.");
+          setLoading(false);
+          return;
+        }
+        const created = await createProviderInstance(
+          editName,
+          editProvider,
+          editKey,
+          editModel || undefined,
+          editType,
+          editType === "generative" ? editMaxContext : 0,
+        );
+        if (editIsActive) {
+          await setActiveProviderInstance(created.id);
+        }
+        targetInstanceId = created.id;
+        setSelectedInstanceId(created.id);
+      } else {
+        if (!selectedInstanceId) return;
+        const inst = instances.find((i) => i.id === selectedInstanceId);
+        if (inst && inst.type === "embedding") {
+          const isMapped = mappings["embeddings"] === selectedInstanceId;
+          const isActive = inst.isActive && !mappings["embeddings"];
+          if (isMapped || isActive) {
+            const hasChanged =
+              inst.providerName !== editProvider ||
+              inst.modelName !== editModel;
+            if (hasChanged) {
+              const confirmChange = window.confirm(
+                "You have changed the configuration of the active embedding provider. This will delete all existing embeddings and regenerate them from scratch. Are you sure you want to do this?",
+              );
+              if (!confirmChange) {
+                setLoading(false);
+                return;
+              }
+              shouldRegenerate = true;
+            }
+          }
+        }
+
+        await updateProviderInstance(
+          selectedInstanceId,
+          editName,
+          editProvider,
+          editKey || undefined,
+          editModel || undefined,
+          editType,
+          editType === "generative" ? editMaxContext : 0,
+        );
+        if (editIsActive) {
+          await setActiveProviderInstance(selectedInstanceId);
+        }
+      }
+
+      await onChanged();
+
+      if (shouldRegenerate && targetInstanceId && targetInstanceId !== "new") {
+        await regenerateEmbeddings(targetInstanceId);
+      }
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleDelete = async () => {
+    if (selectedInstanceId === "new" || selectedInstanceId === null) return;
+    if (!confirm("Are you sure you want to delete this provider instance?"))
+      return;
+
+    try {
+      setLoading(true);
+      setError("");
+      await deleteProviderInstance(selectedInstanceId);
+      setSelectedInstanceId(null);
+      await onChanged();
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <section className="mb-8">
+      {error && (
+        <div className="mb-4 rounded border-2 border-red-500 bg-red-50 px-3 py-2 text-sm text-red-700">
+          {error}
+        </div>
+      )}
+      <div
+        className={cn(
+          "mt-4 grid min-h-[400px] grid-cols-1 gap-4 md:grid-cols-[30%_70%]",
+          loading && "pointer-events-none opacity-60",
+          "transition-opacity duration-200",
+        )}
+      >
+        {/* Left panel - Instance list */}
+        <Card>
+          <CardHeader>
+            <CardTitle>Instances</CardTitle>
+            <CardAction>
+              <Button onClick={() => setSelectedInstanceId("new")} size="sm">
+                + Add
+              </Button>
+            </CardAction>
+          </CardHeader>
+          <CardContent>
+            {instances.length === 0 ? (
+              <Empty>
+                <EmptyTitle>No instances configured</EmptyTitle>
+              </Empty>
+            ) : (
+              <ItemGroup>
+                {instances.map((inst) => (
+                  <Item
+                    key={inst.id}
+                    variant={
+                      selectedInstanceId === inst.id ? "outline" : "muted"
+                    }
+                    className={cn(
+                      "cursor-pointer",
+                      selectedInstanceId === inst.id && "border-primary",
+                    )}
+                    onClick={() => setSelectedInstanceId(inst.id)}
+                  >
+                    <ItemContent>
+                      <ItemTitle>{inst.name}</ItemTitle>
+                      <ItemDescription>{inst.providerName}</ItemDescription>
+                      <div className="flex flex-row gap-1.5">
+                        {inst.isActive && <Badge>Active</Badge>}
+                        <Badge variant="outline">
+                          {inst.type === "generative" ? "gen" : "embed"}
+                        </Badge>
+                      </div>
+                    </ItemContent>
+                  </Item>
+                ))}
+              </ItemGroup>
+            )}
+          </CardContent>
+        </Card>
+
+        {/* Right panel - Form */}
+        <Card>
+          {selectedInstanceId === null ? (
+            <CardContent className="flex min-h-[300px] items-center justify-center">
+              <Empty>
+                <EmptyTitle>No instance selected</EmptyTitle>
+                <EmptyDescription>
+                  Press + to add or select an existing Instance to edit
+                </EmptyDescription>
+              </Empty>
+            </CardContent>
+          ) : (
+            <form onSubmit={handleSave} className="flex h-full flex-col">
+              <CardHeader>
+                <CardTitle>
+                  {selectedInstanceId === "new"
+                    ? "Create New Provider Instance"
+                    : `Configure: ${editName}`}
+                </CardTitle>
+              </CardHeader>
+              <CardContent className="flex flex-1 flex-col gap-5">
+                <div className="flex flex-col gap-1.5">
+                  <Label htmlFor="formName">Friendly Name</Label>
+                  <Input
+                    id="formName"
+                    value={editName}
+                    onChange={(e) => setEditName(e.target.value)}
+                    placeholder="e.g. Gemini - Production"
+                    required
+                  />
+                </div>
+
+                <div className="grid grid-cols-[2fr_3fr] gap-4">
+                  <div className="flex flex-col gap-1.5">
+                    <Label>Instance Type</Label>
+                    <Select
+                      value={editType}
+                      onValueChange={(v) =>
+                        handleTypeChange(v as "generative" | "embedding")
+                      }
+                      items={[
+                        {
+                          label: "Generative (Text Completion)",
+                          value: "generative",
+                        },
+                        {
+                          label: "Embedding (Vector generation)",
+                          value: "embedding",
+                        },
+                      ]}
+                    >
+                      <SelectTrigger className="w-full">
+                        <SelectValue />
+                      </SelectTrigger>
+                      <SelectContent>
+                        <SelectGroup>
+                          <SelectItem value="generative">
+                            Generative (Chat / Text Completion)
+                          </SelectItem>
+                          <SelectItem value="embedding">
+                            Embedding (Vector generation)
+                          </SelectItem>
+                        </SelectGroup>
+                      </SelectContent>
+                    </Select>
+                  </div>
+
+                  <div className="flex flex-col gap-1.5">
+                    <Label>Provider Type</Label>
+                    <Select
+                      value={editProvider}
+                      onValueChange={handleProviderChange}
+                      items={availableProviders.map((p) => ({
+                        label: p.displayName,
+                        value: p.id,
+                      }))}
+                    >
+                      <SelectTrigger className="w-full">
+                        <SelectValue />
+                      </SelectTrigger>
+                      <SelectContent
+                        align="end"
+                        className="min-w-[var(--anchor-width)]"
+                      >
+                        <SelectGroup>
+                          {availableProviders.map((p) => (
+                            <SelectItem key={p.id} value={p.id}>
+                              {p.displayName}
+                            </SelectItem>
+                          ))}
+                        </SelectGroup>
+                      </SelectContent>
+                    </Select>
+                  </div>
+                </div>
+                {editProvider && availableProviders.length > 0 && (
+                  <span className="block rounded border-2 bg-muted px-3 py-2 text-xs text-muted-foreground">
+                    {
+                      availableProviders.find((p) => p.id === editProvider)
+                        ?.description
+                    }
+                  </span>
+                )}
+
+                <div className="flex flex-col gap-1.5">
+                  <Label htmlFor="formKey">API Key</Label>
+                  <Input
+                    id="formKey"
+                    type="password"
+                    value={editKey}
+                    onChange={(e) => setEditKey(e.target.value)}
+                    placeholder={
+                      selectedInstanceId === "new"
+                        ? "AIzaSy..."
+                        : "•••••••• (unchanged)"
+                    }
+                    required={selectedInstanceId === "new"}
+                  />
+                </div>
+
+                <div className="flex flex-col gap-1.5">
+                  <Label htmlFor="formModel">Model Name</Label>
+                  <Input
+                    id="formModel"
+                    value={editModel}
+                    onChange={(e) => setEditModel(e.target.value)}
+                    placeholder="e.g. gemini-2.5-flash, gemini-2.5-pro"
+                  />
+                </div>
+
+                {editType === "generative" && (
+                  <div className="flex flex-col gap-1.5">
+                    <Label htmlFor="formMaxContext">
+                      Max Context Length (Tokens, 0 for infinite)
+                    </Label>
+                    <Input
+                      id="formMaxContext"
+                      type="number"
+                      value={editMaxContext}
+                      onChange={(e) =>
+                        setEditMaxContext(parseInt(e.target.value) || 0)
+                      }
+                      min={0}
+                      placeholder="e.g. 32768"
+                    />
+                  </div>
+                )}
+
+                <div className="flex flex-row items-center gap-2">
+                  <Checkbox
+                    id="formActive"
+                    checked={editIsActive}
+                    onCheckedChange={(v) => setEditIsActive(v === true)}
+                  />
+                  <Label htmlFor="formActive" className="cursor-pointer">
+                    Set as Active Instance
+                  </Label>
+                </div>
+
+                <div className="flex flex-row items-center justify-between gap-2">
+                  <div>
+                    {selectedInstanceId !== "new" && (
+                      <Button
+                        type="button"
+                        variant="destructive"
+                        onClick={handleDelete}
+                        disabled={loading}
+                      >
+                        Delete
+                      </Button>
+                    )}
+                  </div>
+                  <Button type="submit" disabled={loading}>
+                    {loading ? "Saving..." : "Save"}
+                  </Button>
+                </div>
+              </CardContent>
+            </form>
+          )}
+        </Card>
+      </div>
+    </section>
+  );
+}

apps/gui/src/components/play/DashboardView.tsx

@@ -0,0 +1,448 @@
+"use client";
+
+import { useCallback, useEffect, useState } from "react";
+import Link from "next/link";
+import { useRouter } from "next/navigation";
+import {
+  startSimulation,
+  listSavedSimulations,
+  getConfigStatus,
+  getScenarioEntities,
+  deleteSimulation,
+  listProviderInstances,
+} from "@/app/actions";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import type { ModelProviderInstance } from "@omnia/llm";
+import { Button } from "@/components/ui/button";
+import { ScenarioCard } from "@/components/play/ScenarioCard";
+import { Spinner } from "@/components/ui/spinner";
+import { Skeleton } from "@/components/ui/skeleton";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+  DialogFooter,
+} from "@/components/ui/dialog";
+import {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+export function DashboardView() {
+  const router = useRouter();
+  const [loading, setLoading] = useState(false);
+  const [loadingData, setLoadingData] = useState(true);
+  const [error, setError] = useState("");
+
+  const [savedSessions, setSavedSessions] = useState<SimSnapshot[]>([]);
+  const [scenarios, setScenarios] = useState<
+    { path: string; name: string; description: string }[]
+  >([]);
+  const [providerInstances, setProviderInstances] = useState<
+    ModelProviderInstance[]
+  >([]);
+
+  // Modal State
+  const [scenarioForModal, setScenarioForModal] = useState<{
+    path: string;
+    name: string;
+  } | null>(null);
+  const [modalEntities, setModalEntities] = useState<
+    { id: string; name: string }[]
+  >([]);
+  const [loadingEntities, setLoadingEntities] = useState(false);
+  const [selectedEntityForModal, setSelectedEntityForModal] =
+    useState<string>("");
+
+  const loadSavedSessions = useCallback(async () => {
+    try {
+      const res = await listSavedSimulations();
+      if (res.ok) {
+        setSavedSessions(res.sessions);
+      }
+    } catch {
+      // sessions load failed, ignore
+    }
+  }, []);
+
+  useEffect(() => {
+    let active = true;
+    async function loadAll() {
+      setLoadingData(true);
+      try {
+        const sessionsRes = await listSavedSimulations();
+        if (active && sessionsRes.ok) {
+          setSavedSessions(sessionsRes.sessions);
+        }
+      } catch {
+        // session load failed, ignore
+      }
+
+      try {
+        const configStatus = await getConfigStatus();
+        if (active) {
+          setScenarios(configStatus.availableScenarios);
+        }
+      } catch {
+        // scenarios load failed, ignore
+      }
+
+      try {
+        const providersList = await listProviderInstances();
+        if (active) {
+          setProviderInstances(providersList);
+        }
+      } catch {
+        // providers load failed, ignore
+      }
+
+      if (active) {
+        setLoadingData(false);
+      }
+    }
+    loadAll();
+    return () => {
+      active = false;
+    };
+  }, []);
+
+  const handleResume = (id: string) => {
+    router.push(`/play?simId=${id}`);
+  };
+
+  const handleDelete = async (id: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    if (!confirm("Are you sure you want to delete this simulation session?"))
+      return;
+    setLoading(true);
+    try {
+      const res = await deleteSimulation(id);
+      if (!res.ok) {
+        setError(res.error);
+      } else {
+        await loadSavedSessions();
+      }
+    } catch (err) {
+      setError(
+        err instanceof Error ? err.message : "Failed to delete session.",
+      );
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleScenarioClick = async (scenario: {
+    path: string;
+    name: string;
+  }) => {
+    setScenarioForModal(scenario);
+    setLoadingEntities(true);
+    setSelectedEntityForModal(""); // Reset selection to Spectator
+    try {
+      const res = await getScenarioEntities(scenario.path);
+      if (res.ok) {
+        setModalEntities(res.entities);
+      } else {
+        setModalEntities([]);
+      }
+    } catch {
+      setModalEntities([]);
+    } finally {
+      setLoadingEntities(false);
+    }
+  };
+
+  const handleStartFromModal = async () => {
+    if (!scenarioForModal) return;
+    setLoading(true);
+    setError("");
+    const targetScenario = scenarioForModal;
+    setScenarioForModal(null); // close modal
+    try {
+      const result = await startSimulation({
+        scenario: targetScenario.path,
+        playEntity: selectedEntityForModal || undefined,
+      });
+
+      if (!result.ok) {
+        setError(result.error);
+        setLoading(false);
+        return;
+      }
+
+      // Navigate to the separate play page with the newly created simulation ID
+      router.push(`/play?simId=${result.snapshot.id}`);
+    } catch (err) {
+      setError(
+        err instanceof Error ? err.message : "Failed to start simulation.",
+      );
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="flex-1 overflow-y-auto w-full relative">
+      <div className="relative z-10 mx-auto max-w-[800px] px-10 py-12">
+        <div className="animate-fade-in">
+          {/* Centered Big Logo */}
+          <div className="flex flex-col items-center justify-center mb-10 pt-4">
+            <img
+              src="/logo-shadow.png"
+              alt="Omnia Logo"
+              className="h-28 object-contain mb-3"
+            />
+          </div>
+
+          {error && (
+            <div className="mb-6 border border-destructive bg-destructive/10 px-3 py-2 text-sm text-destructive">
+              {error}
+            </div>
+          )}
+
+          {providerInstances.length === 0 && !loadingData && (
+            <div className="mb-6 border border-yellow-500/30 bg-yellow-500/10 px-4 py-3 text-sm text-yellow-600 flex flex-col gap-2">
+              <span className="font-semibold flex items-center gap-1">
+                ⚠️ No LLM providers have been configured.
+              </span>
+              <span>
+                Please go to the{" "}
+                <Link
+                  href="/config"
+                  className="underline font-medium hover:text-yellow-700"
+                >
+                  Configuration
+                </Link>{" "}
+                page to set up at least one provider before running simulations.
+              </span>
+            </div>
+          )}
+
+          {/* Simulations Section */}
+          <section className="mb-10">
+            <h2 className="text-headline-lg text-primary mb-6 animate-fade-in">
+              Simulations
+            </h2>
+            {loadingData ? (
+              <div className="flex overflow-x-auto gap-6 pb-4 scrollbar-thin scrollbar-thumb-border/20">
+                {Array.from({ length: 3 }).map((_, index) => (
+                  <div
+                    key={index}
+                    className="flex-shrink-0 w-72 border border-border/30 bg-card p-5 shadow-sm transition-all flex flex-col justify-between h-[148px]"
+                  >
+                    <div className="space-y-3">
+                      <Skeleton className="h-5 w-2/3" />
+                      <Skeleton className="h-4 w-1/2" />
+                      <Skeleton className="h-3 w-1/3" />
+                    </div>
+                    <div className="flex justify-between items-center mt-4">
+                      <Skeleton className="h-4 w-16" />
+                    </div>
+                  </div>
+                ))}
+              </div>
+            ) : savedSessions.length === 0 ? (
+              <p className="text-sm italic text-muted-foreground">
+                No saved simulations found. Start a new one below!
+              </p>
+            ) : (
+              <div className="flex overflow-x-auto gap-6 pb-4 scrollbar-thin scrollbar-thumb-border/20">
+                {savedSessions.map((s) => (
+                  <div
+                    key={s.id}
+                    onClick={
+                      providerInstances.length === 0
+                        ? undefined
+                        : () => handleResume(s.id)
+                    }
+                    className={`flex-shrink-0 w-72 border border-border/30 bg-card p-5 shadow-sm transition-all relative group ${
+                      providerInstances.length === 0
+                        ? "opacity-50 cursor-not-allowed filter grayscale"
+                        : "cursor-pointer hover:-translate-y-0.5 hover:shadow-md active:translate-y-0 active:shadow-sm"
+                    }`}
+                  >
+                    <div className="flex flex-col gap-1 text-sm mb-4">
+                      <strong className="text-body-md text-foreground block">
+                        {s.scenarioName}
+                      </strong>
+                      <span className="text-xs text-muted-foreground">
+                        Turn {s.turn} &middot; {s.entities.length} entities
+                        &middot; {s.status}
+                      </span>
+                      <span className="text-xs text-muted-foreground/60 font-mono">
+                        ID: {s.id.substring(0, 8)}...
+                      </span>
+                    </div>
+                    <div className="flex justify-between items-center mt-4">
+                      <span className="text-xs text-primary font-mono uppercase tracking-wider">
+                        Resume
+                      </span>
+                      <Button
+                        size="sm"
+                        variant="destructive"
+                        onClick={(e) => handleDelete(s.id, e)}
+                        disabled={loading}
+                        title="Delete Session"
+                        className="opacity-0 group-hover:opacity-100 transition-opacity"
+                      >
+                        Delete
+                      </Button>
+                    </div>
+                  </div>
+                ))}
+              </div>
+            )}
+          </section>
+
+          {/* Scenarios Section */}
+          <section className="mb-10">
+            <h2 className="text-headline-lg text-primary mb-6 animate-fade-in">
+              Scenarios
+            </h2>
+            {loadingData ? (
+              <div className="flex overflow-x-auto gap-6 pb-4 scrollbar-thin scrollbar-thumb-border/20">
+                <Link href="/builder" className="no-underline flex-shrink-0">
+                  <div className="w-64 border border-border/30 bg-card p-5 cursor-pointer shadow-sm hover:-translate-y-0.5 hover:shadow-md active:translate-y-0 active:shadow-sm transition-all flex flex-col justify-between h-full min-h-[148px]">
+                    <div>
+                      <strong className="text-body-md text-foreground block mb-1">
+                        Build a scenario
+                      </strong>
+                      <span className="text-xs text-muted-foreground">
+                        Create a custom simulation starting point
+                      </span>
+                    </div>
+                    <div className="flex items-center gap-2 mt-4 text-xs font-mono uppercase tracking-wider text-primary">
+                      <span className="flex items-center justify-center size-5 border border-primary text-primary font-bold text-sm bg-primary/10">
+                        +
+                      </span>
+                      <span>Create New</span>
+                    </div>
+                  </div>
+                </Link>
+                {Array.from({ length: 3 }).map((_, index) => (
+                  <div
+                    key={index}
+                    className="flex-shrink-0 w-64 border border-border/30 bg-card p-5 shadow-sm flex flex-col justify-between h-[148px]"
+                  >
+                    <div className="space-y-3">
+                      <Skeleton className="h-5 w-3/4" />
+                      <Skeleton className="h-3 w-1/2" />
+                    </div>
+                    <div className="mt-4">
+                      <Skeleton className="h-4 w-20" />
+                    </div>
+                  </div>
+                ))}
+              </div>
+            ) : (
+              <div className="flex overflow-x-auto gap-6 pb-4 scrollbar-thin scrollbar-thumb-border/20">
+                <Link href="/builder" className="no-underline flex-shrink-0">
+                  <div className="w-64 border border-primary bg-primary p-5 cursor-pointer shadow-sm hover:-translate-y-0.5 hover:shadow-md active:translate-y-0 active:shadow-sm transition-all flex flex-col justify-between h-full min-h-[148px]">
+                    <div>
+                      <strong className="text-body-md text-surface block mb-1">
+                        Build a scenario
+                      </strong>
+                      <span className="text-xs text-surface/80">
+                        Create a custom simulation starting point
+                      </span>
+                    </div>
+                    <div className="flex items-center gap-2 mt-4 text-xs font-mono uppercase tracking-wider text-surface">
+                      <span className="flex items-center justify-center size-5 border border-surface text-surface font-bold text-sm bg-surface/20">
+                        +
+                      </span>
+                      <span>Create New</span>
+                    </div>
+                  </div>
+                </Link>
+                {scenarios.map((s) => (
+                  <ScenarioCard
+                    key={s.path}
+                    name={s.name}
+                    description={s.description}
+                    onClick={() => handleScenarioClick(s)}
+                    disabled={providerInstances.length === 0}
+                  />
+                ))}
+              </div>
+            )}
+          </section>
+
+          {/* Start Scenario Selection Modal */}
+          {scenarioForModal && (
+            <Dialog
+              open={!!scenarioForModal}
+              onOpenChange={(open) => !open && setScenarioForModal(null)}
+            >
+              <DialogContent className="max-w-[400px]">
+                <DialogHeader className="border-b border-dotted border-border/20 pb-4 mb-2">
+                  <DialogTitle>Start Scenario</DialogTitle>
+                  <DialogDescription>
+                    Choose how you want to interact with{" "}
+                    <strong>{scenarioForModal.name}</strong>.
+                  </DialogDescription>
+                </DialogHeader>
+
+                {loadingEntities ? (
+                  <div className="flex items-center gap-2 text-sm text-muted-foreground py-4 justify-center">
+                    <Spinner />
+                    <span>Loading scenario entities...</span>
+                  </div>
+                ) : (
+                  <div className="flex flex-col gap-4 py-4">
+                    <div className="flex flex-col gap-2">
+                      <label className="text-xs font-semibold uppercase tracking-wider text-muted-foreground font-mono">
+                        Simulation Mode / Play as
+                      </label>
+                      <Select
+                        value={selectedEntityForModal}
+                        onValueChange={(val) =>
+                          setSelectedEntityForModal(val || "")
+                        }
+                      >
+                        <SelectTrigger className="w-full">
+                          <SelectValue placeholder="-- Run Fully Autonomously --" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectGroup>
+                            <SelectItem value="">
+                              -- Run Fully Autonomously --
+                            </SelectItem>
+                            {modalEntities.map((ent) => (
+                              <SelectItem key={ent.id} value={ent.id}>
+                                Play as {ent.name}
+                              </SelectItem>
+                            ))}
+                          </SelectGroup>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+                )}
+
+                <DialogFooter className="gap-2">
+                  <Button
+                    variant="outline"
+                    onClick={() => setScenarioForModal(null)}
+                  >
+                    Cancel
+                  </Button>
+                  <Button
+                    onClick={handleStartFromModal}
+                    disabled={loading || loadingEntities}
+                  >
+                    {loading ? "Starting..." : "Launch"}
+                  </Button>
+                </DialogFooter>
+              </DialogContent>
+            </Dialog>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}

apps/gui/src/components/play/PlayView.tsx

@@ -0,0 +1,668 @@
+"use client";
+
+import { useCallback, useEffect, useRef, useState } from "react";
+import { useRouter, useSearchParams } from "next/navigation";
+import {
+  stepSimulation,
+  submitPlayerAction,
+  resumeSimulation,
+} from "@/app/actions";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import { Button } from "@/components/ui/button";
+import { Textarea } from "@/components/ui/textarea";
+import { Spinner } from "@/components/ui/spinner";
+import { PromptModal } from "./PromptModal";
+import { cn } from "@/lib/utils";
+import { ChevronLeft } from "lucide-react";
+import {
+  SidebarProvider,
+  Sidebar,
+  SidebarContent,
+  SidebarTrigger,
+  useSidebar,
+} from "@/components/ui/sidebar";
+
+function IntentTag({
+  intent,
+  isSelf,
+}: {
+  intent: SimSnapshot["log"][number]["intents"][number];
+  isSelf?: boolean;
+}) {
+  const labels: Record<string, string> = {
+    monologue: "thought",
+    dialogue: "dialogue",
+    action: "action",
+  };
+
+  const label = labels[intent.type] || intent.type;
+
+  let outcome = "";
+  if (intent.type === "action") {
+    outcome = intent.isValid ? " ✅" : ` ❌ (${intent.reason})`;
+  }
+
+  const textToDisplay =
+    isSelf && intent.selfDescription
+      ? intent.selfDescription
+      : intent.description;
+
+  const modifiersStr =
+    intent.modifiers && intent.modifiers.length > 0 ? (
+      <span className="italic opacity-80 text-muted-foreground ml-1">
+        ({intent.modifiers.join(", ")})
+      </span>
+    ) : null;
+
+  return (
+    <span className="text-sm text-muted-foreground">
+      [{label}] &ldquo;{textToDisplay}&rdquo;{modifiersStr}
+      {outcome}
+      {intent.minutesToAdvance ? ` [+${intent.minutesToAdvance}min]` : ""}
+    </span>
+  );
+}
+
+function formatSimTime(isoString: string) {
+  try {
+    const d = new Date(isoString);
+    if (isNaN(d.getTime())) return isoString;
+    const yyyy = d.getUTCFullYear();
+    const mm = String(d.getUTCMonth() + 1).padStart(2, "0");
+    const dd = String(d.getUTCDate()).padStart(2, "0");
+    const hh = String(d.getUTCHours()).padStart(2, "0");
+    const min = String(d.getUTCMinutes()).padStart(2, "0");
+    const ss = String(d.getUTCSeconds()).padStart(2, "0");
+    return `${yyyy}-${mm}-${dd} ${hh}:${min}:${ss} UTC`;
+  } catch {
+    return isoString;
+  }
+}
+
+function LogEntryCard({
+  entry,
+  onShowPrompt,
+  isPlayerCard,
+}: {
+  entry: SimSnapshot["log"][number];
+  onShowPrompt: (entry: SimSnapshot["log"][number]) => void;
+  isPlayerCard: boolean;
+}) {
+  const showMenu = !!(entry.rawPrompt || entry.decoderPrompt);
+
+  return (
+    <div
+      className={cn(
+        "border p-4 shadow-[2px_2px_0_0_var(--border)]",
+        isPlayerCard
+          ? "border-primary bg-surface-container-low"
+          : "border-border/30 bg-card",
+      )}
+    >
+      <div className="flex justify-between items-center mb-2 border-b border-dotted border-border/20 pb-2">
+        <div className="flex items-center gap-2">
+          <strong className="text-body-md font-bold text-foreground">
+            {entry.entityName}
+          </strong>
+          <span className="text-xs text-muted-foreground font-mono">
+            Turn {entry.turn} &middot; {formatSimTime(entry.timestamp)}
+          </span>
+        </div>
+        {showMenu && (
+          <Button
+            variant="ghost"
+            size="icon"
+            onClick={() => onShowPrompt(entry)}
+            title="View Raw Prompts & Token Usage"
+          >
+            ☰
+          </Button>
+        )}
+      </div>
+      <div className="text-body-md leading-relaxed mb-3 text-foreground/90 whitespace-pre-wrap">
+        {entry.narrativeProse}
+      </div>
+      <div className="flex flex-col gap-1.5 mt-2 border-t border-dotted border-border/10 pt-2">
+        {entry.intents.map((intent, i) => (
+          <IntentTag key={i} intent={intent} isSelf={isPlayerCard} />
+        ))}
+      </div>
+    </div>
+  );
+}
+function MobileSidebarClose() {
+  const { isMobile, setOpenMobile } = useSidebar();
+  if (!isMobile) return null;
+  return (
+    <div className="flex justify-between items-center px-6 py-4 border-b border-border/10">
+      <span className="text-xs font-semibold uppercase tracking-wider text-muted-foreground font-mono">
+        Menu
+      </span>
+      <Button
+        variant="ghost"
+        size="icon"
+        onClick={() => setOpenMobile(false)}
+        className="h-8 w-8"
+      >
+        <ChevronLeft className="h-4 w-4" />
+      </Button>
+    </div>
+  );
+}
+
+export function PlayView() {
+  const router = useRouter();
+  const searchParams = useSearchParams();
+  const simId = searchParams.get("simId");
+
+  const [snapshot, setSnapshot] = useState<SimSnapshot | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [playerInput, setPlayerInput] = useState("");
+  const [error, setError] = useState("");
+  const [statusText, setStatusText] = useState("");
+  const [selectedEntryForModal, setSelectedEntryForModal] = useState<
+    SimSnapshot["log"][number] | null
+  >(null);
+
+  const logEndRef = useRef<HTMLDivElement>(null);
+  const steppingRef = useRef(false);
+  const pauseRequestedRef = useRef(false);
+  const snapshotRef = useRef<SimSnapshot | null>(null);
+
+  useEffect(() => {
+    snapshotRef.current = snapshot;
+  }, [snapshot]);
+
+  const scrollToBottom = useCallback(() => {
+    setTimeout(
+      () => logEndRef.current?.scrollIntoView({ behavior: "smooth" }),
+      100,
+    );
+  }, []);
+
+  useEffect(() => {
+    scrollToBottom();
+  }, [snapshot, scrollToBottom]);
+
+  const runSteps = useCallback(async (id: string) => {
+    if (steppingRef.current) return;
+    steppingRef.current = true;
+    setLoading(true);
+    setError("");
+    pauseRequestedRef.current = false;
+
+    try {
+      let current = snapshotRef.current;
+      while (true) {
+        if (pauseRequestedRef.current) {
+          break;
+        }
+        const result = await stepSimulation({ simId: id });
+        if (!result.ok) {
+          setError(result.error);
+          break;
+        }
+        current = result.snapshot;
+        setSnapshot(current);
+
+        if (
+          current.status === "waiting_player" ||
+          current.status === "done" ||
+          current.status === "error"
+        ) {
+          break;
+        }
+
+        const entityName =
+          current.entities[current.entityIndex ?? 0]?.name || "";
+        setStatusText(
+          `Turn ${current.turn} — processing ${entityName || "next step"}...`,
+        );
+      }
+    } catch (err) {
+      setError(
+        err instanceof Error ? err.message : "Failed during simulation step.",
+      );
+    } finally {
+      steppingRef.current = false;
+      setLoading(false);
+      setStatusText("");
+    }
+  }, []);
+
+  const handleResume = useCallback(
+    async (id: string) => {
+      setLoading(true);
+      setError("");
+      try {
+        const res = await resumeSimulation(id);
+        if (!res.ok) {
+          setError(res.error);
+          setLoading(false);
+          return;
+        }
+        setSnapshot(res.snapshot);
+        const hasPlayer = res.snapshot.entities.some((e) => e.isPlayer);
+        if (res.snapshot.status === "running" && hasPlayer) {
+          await runSteps(res.snapshot.id);
+        } else {
+          setLoading(false);
+        }
+      } catch (err) {
+        setError(
+          err instanceof Error ? err.message : "Failed to resume session.",
+        );
+        setLoading(false);
+      }
+    },
+    [runSteps],
+  );
+
+  // Load simulation on mount
+  useEffect(() => {
+    if (!simId) {
+      router.replace("/");
+      return;
+    }
+    handleResume(simId);
+  }, [simId, handleResume, router]);
+
+  const handleSubmitAction = async (e: React.FormEvent<HTMLFormElement>) => {
+    e.preventDefault();
+
+    if (!snapshot || !playerInput.trim()) return;
+
+    setLoading(true);
+    const prose = playerInput.trim();
+    setPlayerInput("");
+
+    try {
+      const result = await submitPlayerAction({
+        simId: snapshot.id,
+        prose,
+      });
+
+      if (!result.ok) {
+        setError(result.error);
+        setLoading(false);
+        return;
+      }
+
+      setSnapshot(result.snapshot);
+
+      if (result.snapshot.status === "running") {
+        await runSteps(result.snapshot.id);
+      }
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Failed to submit action.");
+      setLoading(false);
+    }
+  };
+
+  const [activeTab, setActiveTab] = useState<"interact" | "manage">("interact");
+
+  const statusMessage = () => {
+    if (!snapshot) return null;
+    if (loading && statusText) return statusText;
+    switch (snapshot.status) {
+      case "waiting_player":
+        return `Waiting for your input as "${snapshot.waitingEntity?.name}"...`;
+      case "error":
+        return `Error: ${snapshot.error}`;
+      default:
+        return null;
+    }
+  };
+
+  const getUnifiedStatus = () => {
+    if (!snapshot) return "";
+    switch (snapshot.status) {
+      case "running":
+        return loading ? "RUNNING" : "PAUSED";
+      case "waiting_player":
+        return "WAITING FOR INPUT";
+      case "done":
+        return "COMPLETE";
+      case "error":
+        return "ERROR";
+      default:
+        return (snapshot.status as string).toUpperCase();
+    }
+  };
+
+  if (!snapshot && loading) {
+    return (
+      <div className="flex flex-col items-center justify-center min-h-[400px] gap-3">
+        <Spinner />
+        <span className="text-sm text-muted-foreground font-mono">
+          Initializing simulation...
+        </span>
+      </div>
+    );
+  }
+
+  if (!snapshot && error) {
+    return (
+      <div className="mx-auto max-w-[800px] px-10 py-12">
+        <div className="border border-destructive bg-destructive/10 px-4 py-3 text-sm text-destructive mb-6">
+          {error}
+        </div>
+        <Button onClick={() => router.push("/")}>Back to Dashboard</Button>
+      </div>
+    );
+  }
+
+  if (!snapshot) return null;
+
+  return (
+    <SidebarProvider>
+      <div className="flex flex-1 min-h-0 overflow-hidden">
+        {/* Sidebar Navigation */}
+        <Sidebar className="border-r border-border/30 bg-card shrink-0">
+          <SidebarContent className="flex flex-col justify-between h-full bg-card">
+            <MobileSidebarClose />
+            <div className="p-6">
+              <h3 className="text-xs font-semibold uppercase tracking-wider text-muted-foreground font-mono mb-4">
+                Simulation
+              </h3>
+              <div className="flex flex-col gap-2">
+                <button
+                  onClick={() => setActiveTab("interact")}
+                  className={cn(
+                    "w-full text-left px-4 py-2.5 text-sm font-medium border transition-all duration-100",
+                    activeTab === "interact"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)]"
+                      : "border-border/30 hover:bg-secondary text-foreground",
+                  )}
+                >
+                  Interact
+                </button>
+                <button
+                  onClick={() => setActiveTab("manage")}
+                  className={cn(
+                    "w-full text-left px-4 py-2.5 text-sm font-medium border transition-all duration-100",
+                    activeTab === "manage"
+                      ? "border-primary bg-primary/10 text-primary shadow-[2px_2px_0_0_var(--primary)]"
+                      : "border-border/30 hover:bg-secondary text-foreground",
+                  )}
+                >
+                  Manage
+                </button>
+              </div>
+            </div>
+
+            <div className="p-6 border-t border-dotted border-border/20">
+              <Button
+                variant="outline"
+                className="w-full text-xs font-mono"
+                onClick={() => {
+                  pauseRequestedRef.current = true;
+                  router.push("/");
+                }}
+              >
+                ← Back to Home
+              </Button>
+            </div>
+          </SidebarContent>
+        </Sidebar>
+
+        {/* Main Content Area */}
+        <div className="flex-1 flex flex-col h-full overflow-hidden bg-background">
+          {/* Sticky Header */}
+          <header className="sticky top-0 bg-background/95 backdrop-blur-xs border-b border-dotted border-border/20 px-8 py-5 z-10 flex flex-col gap-2 shrink-0">
+            <div className="flex justify-between items-start gap-4">
+              <div className="flex items-center gap-3">
+                <SidebarTrigger className="md:hidden" />
+                <div>
+                  <h2 className="text-headline-md text-primary font-head tracking-wide">
+                    {snapshot.scenarioName}
+                  </h2>
+                  <p className="text-sm text-muted-foreground/90 mt-1 max-w-[550px]">
+                    {snapshot.scenarioDescription}
+                  </p>
+                </div>
+              </div>
+              {/* Simulation Global Controls */}
+              <div className="flex gap-2 shrink-0">
+                {snapshot.status !== "done" && snapshot.status !== "error" && (
+                  <>
+                    {snapshot.status === "running" &&
+                      (loading ? (
+                        <Button
+                          variant="secondary"
+                          size="sm"
+                          onClick={() => {
+                            pauseRequestedRef.current = true;
+                          }}
+                        >
+                          Pause
+                        </Button>
+                      ) : (
+                        <Button
+                          variant="secondary"
+                          size="sm"
+                          onClick={() => runSteps(snapshot.id)}
+                        >
+                          Resume
+                        </Button>
+                      ))}
+                    <Button
+                      variant="destructive"
+                      size="sm"
+                      onClick={() => {
+                        pauseRequestedRef.current = true;
+                        router.push("/");
+                      }}
+                    >
+                      Stop
+                    </Button>
+                  </>
+                )}
+              </div>
+            </div>
+            <div className="flex items-center justify-between text-xs font-mono mt-1 pt-1.5 border-t border-border/10">
+              <span className="text-muted-foreground">
+                Status:{" "}
+                <span className="text-primary font-bold">
+                  {getUnifiedStatus()}
+                </span>
+              </span>
+              <span className="text-muted-foreground">
+                Turn:{" "}
+                <span className="text-foreground font-bold">
+                  {snapshot.turn}
+                </span>
+              </span>
+            </div>
+            {statusMessage() && (
+              <p className="text-xs font-medium text-primary mt-1 font-mono">
+                {loading && "⏳ "}
+                {statusMessage()}
+              </p>
+            )}
+          </header>
+
+          {/* Scrollable Center Viewport */}
+          <main className="flex-1 overflow-y-auto px-8 py-6">
+            {activeTab === "interact" ? (
+              <div className="flex flex-col gap-4 max-w-[800px] mx-auto pb-12">
+                {(() => {
+                  const playerEntity = snapshot.entities.find(
+                    (e) => e.isPlayer,
+                  );
+                  return snapshot.log.map((entry, i) => (
+                    <LogEntryCard
+                      key={i}
+                      entry={entry}
+                      onShowPrompt={setSelectedEntryForModal}
+                      isPlayerCard={entry.entityId === playerEntity?.id}
+                    />
+                  ));
+                })()}
+                {loading && (
+                  <div className="flex items-center gap-2 text-sm italic text-muted-foreground p-2 font-mono">
+                    <Spinner />
+                    {statusText || "Processing..."}
+                  </div>
+                )}
+                <div ref={logEndRef} />
+              </div>
+            ) : (
+              <div className="max-w-[800px] mx-auto space-y-6 pb-12">
+                {/* Simulation Info */}
+                <div className="border border-border/30 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
+                  <h3 className="text-headline-sm text-primary mb-4 border-b border-dotted border-border/20 pb-2">
+                    Simulation Info
+                  </h3>
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-6 text-sm font-mono">
+                    <div className="flex flex-col gap-1 border-b border-border/10 pb-2">
+                      <span className="text-muted-foreground text-xs uppercase tracking-wider">
+                        Session ID
+                      </span>
+                      <span className="text-foreground font-bold break-all">
+                        {snapshot.id}
+                      </span>
+                    </div>
+                    <div className="flex flex-col gap-1 border-b border-border/10 pb-2">
+                      <span className="text-muted-foreground text-xs uppercase tracking-wider">
+                        Max Turns
+                      </span>
+                      <span className="text-foreground font-bold">
+                        {snapshot.maxTurns}
+                      </span>
+                    </div>
+                    <div className="flex flex-col gap-1 border-b border-border/10 pb-2">
+                      <span className="text-muted-foreground text-xs uppercase tracking-wider">
+                        Turn Count
+                      </span>
+                      <span className="text-foreground font-bold">
+                        {snapshot.turn}
+                      </span>
+                    </div>
+                    <div className="flex flex-col gap-1 border-b border-border/10 pb-2">
+                      <span className="text-muted-foreground text-xs uppercase tracking-wider">
+                        Entities Registered
+                      </span>
+                      <span className="text-foreground font-bold">
+                        {snapshot.entities.length}
+                      </span>
+                    </div>
+                  </div>
+                </div>
+
+                {/* Entities Involved */}
+                <div className="border border-border/30 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
+                  <h3 className="text-headline-sm text-primary mb-4 border-b border-dotted border-border/20 pb-2">
+                    Entities Involved
+                  </h3>
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    {snapshot.entities.map((ent) => (
+                      <div
+                        key={ent.id}
+                        className="border border-border/20 bg-secondary/20 p-4 shadow-[1px_1px_0_0_var(--border)] flex justify-between items-center"
+                      >
+                        <div>
+                          <strong className="text-sm text-foreground block font-head tracking-wide">
+                            {ent.name}
+                          </strong>
+                          <span className="text-xs text-muted-foreground font-mono block mt-1">
+                            ID: {ent.id}
+                          </span>
+                        </div>
+                        <div className="flex items-center gap-2">
+                          {ent.isPlayer ? (
+                            <span className="bg-primary/20 text-primary border border-primary/30 px-2 py-0.5 text-xs font-mono">
+                              PLAYER
+                            </span>
+                          ) : (
+                            <span className="bg-secondary/60 text-muted-foreground border border-border/20 px-2 py-0.5 text-xs font-mono">
+                              NPC
+                            </span>
+                          )}
+                        </div>
+                      </div>
+                    ))}
+                  </div>
+                </div>
+              </div>
+            )}
+          </main>
+
+          {/* Sticky Chat / Interaction Input Footer */}
+          {activeTab === "interact" && (
+            <footer className="sticky bottom-0 bg-background/95 backdrop-blur-xs border-t border-dotted border-border/20 px-8 py-4 z-10 shrink-0">
+              <div className="max-w-[800px] mx-auto">
+                {snapshot.status === "waiting_player" &&
+                snapshot.waitingEntity ? (
+                  <div className="border border-border/30 bg-card p-4 shadow-[2px_2px_0_0_var(--border)]">
+                    <details className="mb-3">
+                      <summary className="cursor-pointer text-sm font-medium font-head text-primary select-none outline-none">
+                        <strong>
+                          Your context as {snapshot.waitingEntity.name}
+                        </strong>
+                      </summary>
+                      <pre className="text-xs whitespace-pre-wrap bg-input border border-border/20 p-2 max-h-[150px] overflow-y-auto mt-2 font-mono">
+                        {snapshot.waitingEntity.userContext}
+                      </pre>
+                    </details>
+
+                    <form
+                      onSubmit={handleSubmitAction}
+                      className="flex flex-col gap-2"
+                    >
+                      <Textarea
+                        value={playerInput}
+                        onChange={(e) => setPlayerInput(e.target.value)}
+                        placeholder="Describe what your character does, says, or thinks..."
+                        rows={3}
+                        disabled={loading}
+                      />
+                      <Button
+                        type="submit"
+                        disabled={loading || !playerInput.trim()}
+                      >
+                        {loading ? "Processing..." : "Submit Action"}
+                      </Button>
+                    </form>
+                  </div>
+                ) : snapshot.status === "done" ||
+                  snapshot.status === "error" ? (
+                  <div className="flex justify-between items-center bg-card border border-border/30 p-4 shadow-[2px_2px_0_0_var(--border)]">
+                    <span className="text-sm font-mono text-muted-foreground">
+                      {snapshot.status === "error"
+                        ? "Simulation finished with an error."
+                        : "Simulation complete."}
+                    </span>
+                    <Button
+                      onClick={() => {
+                        router.push("/");
+                      }}
+                      size="sm"
+                    >
+                      {snapshot.status === "error"
+                        ? "Back to Dashboard"
+                        : "New Simulation"}
+                    </Button>
+                  </div>
+                ) : null}
+              </div>
+            </footer>
+          )}
+        </div>
+
+        {error && !loading && (
+          <div className="fixed bottom-4 right-4 z-50 border border-destructive bg-destructive/90 text-destructive-foreground px-4 py-3 shadow-[3px_3px_0_0_var(--border)] text-sm">
+            {error}
+          </div>
+        )}
+
+        {selectedEntryForModal && (
+          <PromptModal
+            entry={selectedEntryForModal}
+            onClose={() => setSelectedEntryForModal(null)}
+          />
+        )}
+      </div>
+    </SidebarProvider>
+  );
+}

apps/gui/src/components/play/PromptModal.tsx

@@ -0,0 +1,457 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+
+import {
+  Accordion,
+  AccordionItem,
+  AccordionTrigger,
+  AccordionContent,
+} from "@/components/ui/accordion";
+import { PromptSwitcher } from "@/components/play/PromptSwitcher";
+
+interface PromptModalProps {
+  entry: SimSnapshot["log"][number];
+  onClose: () => void;
+}
+
+export function PromptModal({ entry, onClose }: PromptModalProps) {
+  const [activeTab, setActiveTab] = useState<"actor" | "decoder">("actor");
+
+  const parseActorPrompt = (
+    systemPrompt: string,
+    userContext: string,
+    inputTokens: number,
+  ) => {
+    const recentHeader = "=== RECENT EVENTS ===";
+    const ledgerHeader = "=== YOUR MEMORIES ===";
+
+    const recentIdx = userContext.indexOf(recentHeader);
+    let worldStr = userContext;
+    let recentStr = "";
+    let ledgerStr = "";
+
+    if (recentIdx !== -1) {
+      worldStr = userContext.substring(0, recentIdx).trim();
+      const rest = userContext.substring(recentIdx).trim();
+      const ledgerIdx = rest.indexOf(ledgerHeader);
+      if (ledgerIdx !== -1) {
+        recentStr = rest.substring(0, ledgerIdx).trim();
+        ledgerStr = rest.substring(ledgerIdx).trim();
+      } else {
+        recentStr = rest;
+      }
+    }
+
+    const sections: { label: string; type: string; content: string }[] = [
+      { label: "System Prompt", type: "system", content: systemPrompt },
+      { label: "World Info", type: "world", content: worldStr },
+      {
+        label: "Recent Events",
+        type: "events",
+        content: recentStr || "(No recent events.)",
+      },
+      {
+        label: "Long-Term Memories",
+        type: "memories",
+        content: ledgerStr || "(No long-term memories.)",
+      },
+    ];
+
+    const totalLen = sections.reduce((sum, s) => sum + s.content.length, 0);
+    if (totalLen === 0) return null;
+
+    return sections.map((s) => {
+      const pct = (s.content.length / totalLen) * 100;
+      return {
+        ...s,
+        pct,
+        relativePct: pct,
+        tokens: Math.round((s.content.length / totalLen) * inputTokens),
+      };
+    });
+  };
+
+  const parseDecoderPrompt = (
+    systemPrompt: string,
+    userContext: string,
+    inputTokens: number,
+  ) => {
+    const proseHeader = "=== NARRATIVE PROSE ===";
+    const idx = userContext.indexOf(proseHeader);
+
+    let worldStr = userContext;
+    let proseStr = "";
+
+    if (idx !== -1) {
+      worldStr = userContext.substring(0, idx).trim();
+      proseStr = userContext.substring(idx).trim();
+    }
+
+    const sysLen = systemPrompt.length;
+    const worldLen = worldStr.length;
+    const proseLen = proseStr.length;
+    const totalLen = sysLen + worldLen + proseLen;
+
+    if (totalLen === 0) return null;
+
+    const sysPct = (sysLen / totalLen) * 100;
+    const worldPct = (worldLen / totalLen) * 100;
+    const prosePct = (proseLen / totalLen) * 100;
+
+    const sysTokens = Math.round((sysLen / totalLen) * inputTokens);
+    const worldTokens = Math.round((worldLen / totalLen) * inputTokens);
+    const proseTokens = Math.max(0, inputTokens - sysTokens - worldTokens);
+
+    return [
+      {
+        label: "System Prompt",
+        pct: sysPct,
+        relativePct: sysPct,
+        tokens: sysTokens,
+        type: "system",
+        content: systemPrompt,
+      },
+      {
+        label: "Decoder Context",
+        pct: worldPct,
+        relativePct: worldPct,
+        tokens: worldTokens,
+        type: "world",
+        content: worldStr,
+      },
+      {
+        label: "Narrative Prose",
+        pct: prosePct,
+        relativePct: prosePct,
+        tokens: proseTokens,
+        type: "memories",
+        content: proseStr,
+      },
+    ];
+  };
+
+  const actorBreakdown =
+    entry.rawPrompt && entry.usage
+      ? parseActorPrompt(
+          entry.rawPrompt.systemPrompt,
+          entry.rawPrompt.userContext,
+          entry.usage.inputTokens,
+        )
+      : null;
+  const decoderBreakdown =
+    entry.decoderPrompt && entry.decoderUsage
+      ? parseDecoderPrompt(
+          entry.decoderPrompt.systemPrompt,
+          entry.decoderPrompt.userContext,
+          entry.decoderUsage.inputTokens,
+        )
+      : null;
+
+  const actorMaxContext =
+    entry.usage?.maxContext !== undefined ? entry.usage.maxContext : 32768;
+  const actorUsedTokens = entry.usage?.inputTokens || 0;
+  const actorUsagePctOfContext =
+    actorMaxContext > 0 ? (actorUsedTokens / actorMaxContext) * 100 : 0;
+  const isActorAbsolute = actorMaxContext > 0 && actorUsagePctOfContext >= 20;
+
+  const scaledActorBreakdown = actorBreakdown
+    ? actorBreakdown.map((item) => ({
+        ...item,
+        pct: isActorAbsolute
+          ? item.relativePct * (actorUsedTokens / actorMaxContext)
+          : item.relativePct,
+      }))
+    : null;
+
+  const decoderMaxContext =
+    entry.decoderUsage?.maxContext !== undefined
+      ? entry.decoderUsage.maxContext
+      : 32768;
+  const decoderUsedTokens = entry.decoderUsage?.inputTokens || 0;
+  const decoderUsagePctOfContext =
+    decoderMaxContext > 0 ? (decoderUsedTokens / decoderMaxContext) * 100 : 0;
+  const isDecoderAbsolute =
+    decoderMaxContext > 0 && decoderUsagePctOfContext >= 20;
+
+  const scaledDecoderBreakdown = decoderBreakdown
+    ? decoderBreakdown.map((item) => ({
+        ...item,
+        pct: isDecoderAbsolute
+          ? item.relativePct * (decoderUsedTokens / decoderMaxContext)
+          : item.relativePct,
+      }))
+    : null;
+
+  useEffect(() => {
+    if (!entry.rawPrompt && entry.decoderPrompt) {
+      setActiveTab("decoder");
+    }
+  }, [entry]);
+
+  return (
+    <Dialog open onOpenChange={(open) => !open && onClose()}>
+      <DialogContent className="max-w-[750px] sm:max-w-[750px] h-[90vh] overflow-hidden flex flex-col p-0 gap-0">
+        <DialogHeader className="px-6 pt-5 pb-4 border-b">
+          <DialogTitle className="text-lg">
+            Raw Prompts & Token Usage ({entry.entityName})
+          </DialogTitle>
+        </DialogHeader>
+
+        <PromptSwitcher
+          activeTab={activeTab}
+          onTabChange={setActiveTab}
+          hasActor={!!entry.rawPrompt}
+          hasDecoder={!!entry.decoderPrompt}
+        />
+
+        <div className="overflow-y-auto flex-1 p-5">
+          {activeTab === "actor" && entry.rawPrompt && (
+            <div className="flex flex-col gap-4">
+              {entry.usage ? (
+                <div className="rounded border-2 bg-muted/50 px-3 py-2 text-sm text-muted-foreground">
+                  <strong>LLM Instance:</strong>{" "}
+                  <span>{entry.usage.providerInstanceName || "Default"}</span>
+                  {entry.usage.modelName && (
+                    <span> ({entry.usage.modelName})</span>
+                  )}
+                </div>
+              ) : (
+                <div className="rounded border-2 bg-muted/50 px-3 py-2 text-sm italic text-muted-foreground">
+                  No LLM token usage (Player turn used fixed prose).
+                </div>
+              )}
+
+              {scaledActorBreakdown && (
+                <div>
+                  <div className="flex justify-between items-center text-xs text-muted-foreground mb-1">
+                    <span className="font-semibold">
+                      Input Prompt Breakdown
+                    </span>
+                    <span>
+                      Total Input Tokens: <strong>{actorUsedTokens}</strong>
+                      {actorMaxContext > 0 ? (
+                        <span>
+                          {" "}
+                          / {actorMaxContext} (
+                          {actorUsagePctOfContext.toFixed(1)}% used)
+                        </span>
+                      ) : (
+                        <span> (infinite context)</span>
+                      )}
+                    </span>
+                  </div>
+                  <div className="flex h-6 w-full rounded border overflow-hidden bg-muted shadow-inner mb-2">
+                    {scaledActorBreakdown.map((item, idx) => {
+                      const displayPct =
+                        actorMaxContext > 0
+                          ? (item.tokens / actorMaxContext) * 100
+                          : item.relativePct;
+                      return (
+                        <div
+                          key={idx}
+                          className={`h-full transition-all duration-300 ${
+                            item.type === "system"
+                              ? "bg-blue-500"
+                              : item.type === "world"
+                                ? "bg-emerald-500"
+                                : item.type === "memories"
+                                  ? "bg-purple-500"
+                                  : "bg-amber-500"
+                          }`}
+                          style={{ width: `${item.pct}%` }}
+                          title={`${item.label}: ${item.tokens} tokens (${displayPct.toFixed(1)}%)`}
+                        />
+                      );
+                    })}
+                    {isActorAbsolute && (
+                      <div
+                        className="bg-white h-full"
+                        style={{ width: `${100 - actorUsagePctOfContext}%` }}
+                        title={`Available: ${actorMaxContext - actorUsedTokens} tokens (${(100 - actorUsagePctOfContext).toFixed(1)}% remaining)`}
+                      />
+                    )}
+                  </div>
+                  <Accordion type="multiple">
+                    {scaledActorBreakdown.map((item, idx) => {
+                      const displayPct =
+                        actorMaxContext > 0
+                          ? (item.tokens / actorMaxContext) * 100
+                          : item.relativePct;
+                      return (
+                        <AccordionItem key={idx} value={String(idx)}>
+                          <AccordionTrigger className="text-sm">
+                            <span
+                              className={`inline-block w-2.5 h-2.5 rounded-sm mr-2 ${
+                                item.type === "system"
+                                  ? "bg-blue-500"
+                                  : item.type === "world"
+                                    ? "bg-emerald-500"
+                                    : item.type === "memories"
+                                      ? "bg-purple-500"
+                                      : "bg-amber-500"
+                              }`}
+                            />
+                            {item.label}: <strong>{item.tokens}</strong> tokens
+                            ({displayPct.toFixed(0)}%)
+                          </AccordionTrigger>
+                          <AccordionContent>
+                            <pre className="m-0 p-2 bg-muted rounded text-xs font-mono whitespace-pre-wrap text-foreground">
+                              {item.content}
+                            </pre>
+                          </AccordionContent>
+                        </AccordionItem>
+                      );
+                    })}
+                  </Accordion>
+                </div>
+              )}
+
+              {entry.usage && (
+                <div>
+                  <div className="flex justify-between items-center text-xs text-muted-foreground mb-2">
+                    <span className="font-semibold">LLM Output</span>
+                    <span>
+                      Total Output Tokens:{" "}
+                      <strong>{entry.usage.outputTokens}</strong>
+                    </span>
+                  </div>
+                  <div className="rounded border-2">
+                    <pre className="m-0 p-2 bg-muted text-xs font-mono whitespace-pre-wrap text-foreground">
+                      {entry.narrativeProse}
+                    </pre>
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+
+          {activeTab === "decoder" && entry.decoderPrompt && (
+            <div className="flex flex-col gap-4">
+              {entry.decoderUsage && (
+                <div className="rounded border-2 bg-muted/50 px-3 py-2 text-sm text-muted-foreground">
+                  <strong>LLM Instance:</strong>{" "}
+                  <span>
+                    {entry.decoderUsage.providerInstanceName || "Default"}
+                  </span>
+                  {entry.decoderUsage.modelName && (
+                    <span> ({entry.decoderUsage.modelName})</span>
+                  )}
+                </div>
+              )}
+
+              {scaledDecoderBreakdown && (
+                <div>
+                  <div className="flex justify-between items-center text-xs text-muted-foreground mb-1">
+                    <span className="font-semibold">
+                      Input Prompt Breakdown
+                    </span>
+                    <span>
+                      Total Input Tokens: <strong>{decoderUsedTokens}</strong>
+                      {decoderMaxContext > 0 ? (
+                        <span>
+                          {" "}
+                          / {decoderMaxContext} (
+                          {decoderUsagePctOfContext.toFixed(1)}% used)
+                        </span>
+                      ) : (
+                        <span> (infinite context)</span>
+                      )}
+                    </span>
+                  </div>
+                  <div className="flex h-6 w-full rounded border overflow-hidden bg-muted shadow-inner mb-2">
+                    {scaledDecoderBreakdown.map((item, idx) => {
+                      const displayPct =
+                        decoderMaxContext > 0
+                          ? (item.tokens / decoderMaxContext) * 100
+                          : item.relativePct;
+                      return (
+                        <div
+                          key={idx}
+                          className={`h-full transition-all duration-300 ${
+                            item.type === "system"
+                              ? "bg-blue-500"
+                              : item.type === "world"
+                                ? "bg-emerald-500"
+                                : item.type === "memories"
+                                  ? "bg-purple-500"
+                                  : "bg-amber-500"
+                          }`}
+                          style={{ width: `${item.pct}%` }}
+                          title={`${item.label}: ${item.tokens} tokens (${displayPct.toFixed(1)}%)`}
+                        />
+                      );
+                    })}
+                    {isDecoderAbsolute && (
+                      <div
+                        className="bg-white h-full"
+                        style={{ width: `${100 - decoderUsagePctOfContext}%` }}
+                        title={`Available: ${decoderMaxContext - decoderUsedTokens} tokens (${(100 - decoderUsagePctOfContext).toFixed(1)}% remaining)`}
+                      />
+                    )}
+                  </div>
+                  <Accordion type="multiple">
+                    {scaledDecoderBreakdown.map((item, idx) => {
+                      const displayPct =
+                        decoderMaxContext > 0
+                          ? (item.tokens / decoderMaxContext) * 100
+                          : item.relativePct;
+                      return (
+                        <AccordionItem key={idx} value={String(idx)}>
+                          <AccordionTrigger className="text-sm">
+                            <span
+                              className={`inline-block w-2.5 h-2.5 rounded-sm mr-2 ${
+                                item.type === "system"
+                                  ? "bg-blue-500"
+                                  : item.type === "world"
+                                    ? "bg-emerald-500"
+                                    : item.type === "memories"
+                                      ? "bg-purple-500"
+                                      : "bg-amber-500"
+                              }`}
+                            />
+                            {item.label}: <strong>{item.tokens}</strong> tokens
+                            ({displayPct.toFixed(0)}%)
+                          </AccordionTrigger>
+                          <AccordionContent>
+                            <pre className="m-0 p-2 bg-muted rounded text-xs font-mono whitespace-pre-wrap text-foreground">
+                              {item.content}
+                            </pre>
+                          </AccordionContent>
+                        </AccordionItem>
+                      );
+                    })}
+                  </Accordion>
+                </div>
+              )}
+
+              {entry.decoderUsage && (
+                <div>
+                  <div className="flex justify-between items-center text-xs text-muted-foreground mb-2">
+                    <span className="font-semibold">LLM Output</span>
+                    <span>
+                      Total Output Tokens:{" "}
+                      <strong>{entry.decoderUsage.outputTokens}</strong>
+                    </span>
+                  </div>
+                  <div className="rounded border-2">
+                    <pre className="m-0 p-2 bg-muted text-xs font-mono whitespace-pre-wrap text-foreground">
+                      {JSON.stringify(entry.intents, null, 2)}
+                    </pre>
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

apps/gui/src/components/play/PromptSwitcher.tsx

@@ -0,0 +1,43 @@
+"use client";
+
+interface PromptSwitcherProps {
+  activeTab: "actor" | "decoder";
+  onTabChange: (tab: "actor" | "decoder") => void;
+  hasActor: boolean;
+  hasDecoder: boolean;
+}
+
+export function PromptSwitcher({
+  activeTab,
+  onTabChange,
+  hasActor,
+  hasDecoder,
+}: PromptSwitcherProps) {
+  return (
+    <div className="flex items-center justify-center gap-4 border-b bg-muted/50 px-5 py-4">
+      <button
+        onClick={() => onTabChange("actor")}
+        disabled={!hasActor}
+        className={`flex h-14 w-40 items-center justify-center border-2 text-sm font-medium transition-all ${
+          activeTab === "actor"
+            ? "border-primary bg-primary text-primary-foreground shadow-sm"
+            : "border-border/30 bg-card text-foreground hover:border-primary/50"
+        } disabled:cursor-not-allowed disabled:opacity-40`}
+      >
+        Actor Prompt
+      </button>
+      <span className="text-xl text-muted-foreground">→</span>
+      <button
+        onClick={() => onTabChange("decoder")}
+        disabled={!hasDecoder}
+        className={`flex h-14 w-44 items-center justify-center border-2 text-sm font-medium transition-all ${
+          activeTab === "decoder"
+            ? "border-primary bg-primary text-primary-foreground shadow-sm"
+            : "border-border/30 bg-card text-foreground hover:border-primary/50"
+        } disabled:cursor-not-allowed disabled:opacity-40`}
+      >
+        Intent Decoder
+      </button>
+    </div>
+  );
+}

apps/gui/src/components/play/ScenarioCard.tsx

@@ -0,0 +1,47 @@
+"use client";
+
+function truncate(text: string, maxLen: number): string {
+  if (text.length <= maxLen) return text;
+  return text.slice(0, maxLen).trimEnd() + "...";
+}
+
+interface ScenarioCardProps {
+  name: string;
+  description: string;
+  onClick: () => void;
+  disabled?: boolean;
+}
+
+export function ScenarioCard({
+  name,
+  description,
+  onClick,
+  disabled,
+}: ScenarioCardProps) {
+  return (
+    <div
+      onClick={disabled ? undefined : onClick}
+      className={`flex-shrink-0 w-64 border border-border/30 bg-card p-5 shadow-sm transition-all ${
+        disabled
+          ? "opacity-50 cursor-not-allowed filter grayscale"
+          : "cursor-pointer hover:-translate-y-0.5 hover:shadow-md active:translate-y-0 active:shadow-sm"
+      }`}
+    >
+      <strong className="text-body-md text-foreground block mb-2">
+        {name}
+      </strong>
+      <p className="text-xs text-muted-foreground leading-relaxed mb-1">
+        {truncate(description, 80)}
+      </p>
+      <span
+        className={`mt-4 flex items-center justify-center size-7 border font-mono text-sm font-bold ${
+          disabled
+            ? "border-muted text-muted bg-muted/10"
+            : "border-primary bg-primary/10 text-primary"
+        }`}
+      >
+        {">"}
+      </span>
+    </div>
+  );
+}

apps/gui/src/components/ui/accordion.tsx

@@ -0,0 +1,101 @@
+"use client";
+
+import * as React from "react";
+import { ChevronDownIcon } from "lucide-react";
+import { Accordion as AccordionPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+// Smooth, premium easing for the open/close — fast out of the gate, gentle
+// settle. Shared by the panel height and the chevron so they move in lockstep.
+const EASE = "ease-[cubic-bezier(0.32,0.72,0,1)]";
+
+function Accordion({
+  className,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Root>) {
+  return (
+    <AccordionPrimitive.Root
+      data-slot="accordion"
+      className={cn("flex w-full flex-col gap-3", className)}
+      {...props}
+    />
+  );
+}
+
+function AccordionItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Item>) {
+  return (
+    <AccordionPrimitive.Item
+      data-slot="accordion-item"
+      className={cn(
+        "overflow-hidden rounded border-2 bg-background text-foreground shadow-md transition-shadow duration-200 hover:shadow-sm data-[state=open]:shadow-sm",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function AccordionTrigger({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Trigger>) {
+  return (
+    <AccordionPrimitive.Header data-slot="accordion-header" className="flex">
+      <AccordionPrimitive.Trigger
+        data-slot="accordion-trigger"
+        className={cn(
+          "flex flex-1 cursor-pointer items-center justify-between gap-4 px-4 py-3 text-left font-head transition-colors hover:bg-muted/50 data-[state=open]:bg-muted/40 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary [&[data-state=open]>svg]:rotate-180",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        <ChevronDownIcon
+          aria-hidden
+          data-slot="accordion-trigger-icon"
+          className={cn(
+            "h-4 w-4 shrink-0 text-muted-foreground transition-transform duration-300",
+            EASE,
+          )}
+        />
+      </AccordionPrimitive.Trigger>
+    </AccordionPrimitive.Header>
+  );
+}
+
+function AccordionContent({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Content>) {
+  return (
+    <AccordionPrimitive.Content
+      data-slot="accordion-content"
+      // Radix publishes the measured height as `--radix-accordion-content-height`
+      // and toggles `data-state`. The accordion-down/up keyframes (in
+      // shadcn-tailwind.css) interpolate height between that var and 0 for a real
+      // slide open/close — the Base UI variant achieves the same via transitions.
+      className="group/panel overflow-hidden bg-card font-body text-sm text-muted-foreground data-[state=open]:animate-accordion-down data-[state=closed]:animate-accordion-up"
+      {...props}
+    >
+      <div
+        className={cn(
+          "px-4 pt-2 pb-4 transition-[opacity,transform] duration-300 ease-out",
+          // Fade + nudge the content as the panel opens/closes, synced to the slide.
+          "group-data-[state=closed]/panel:-translate-y-1 group-data-[state=closed]/panel:opacity-0",
+          "[&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
+          className,
+        )}
+      >
+        {children}
+      </div>
+    </AccordionPrimitive.Content>
+  );
+}
+
+export { Accordion, AccordionItem, AccordionTrigger, AccordionContent };

apps/gui/src/components/ui/badge.tsx

@@ -0,0 +1,49 @@
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+import { Slot } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+const badgeVariants = cva(
+  "group/badge inline-flex h-5 w-fit shrink-0 items-center justify-center gap-1 overflow-hidden rounded border px-2 py-0.5 text-xs font-head font-medium whitespace-nowrap transition-all focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 aria-invalid:border-destructive [&>svg]:pointer-events-none [&>svg]:size-3!",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
+        secondary:
+          "bg-secondary text-secondary-foreground [a]:hover:bg-secondary/80",
+        destructive:
+          "bg-destructive text-destructive-foreground [a]:hover:bg-destructive/90",
+        outline:
+          "bg-transparent text-foreground [a]:hover:bg-muted [a]:hover:text-muted-foreground",
+        ghost:
+          "border-transparent bg-transparent shadow-none hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
+        link: "border-transparent bg-transparent shadow-none text-primary underline-offset-4 hover:underline",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+function Badge({
+  className,
+  variant = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"span"> &
+  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "span";
+
+  return (
+    <Comp
+      data-slot="badge"
+      data-variant={variant}
+      className={cn(badgeVariants({ variant }), className)}
+      {...props}
+    />
+  );
+}
+
+export { Badge, badgeVariants };

apps/gui/src/components/ui/button.tsx

@@ -0,0 +1,57 @@
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap text-sm font-medium border border-border/30 outline-none transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0 shadow-sm active:translate-x-[1px] active:translate-y-[1px] active:shadow-xs focus-visible:ring-2 focus-visible:ring-ring",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground hover:bg-primary-hover",
+        destructive:
+          "bg-destructive text-destructive-foreground hover:bg-destructive/90",
+        outline: "bg-background hover:bg-secondary",
+        secondary:
+          "bg-secondary text-secondary-foreground hover:bg-secondary-foreground/10",
+        ghost:
+          "border-transparent shadow-none active:translate-x-0 active:translate-y-0 active:shadow-none hover:bg-secondary",
+        link: "border-transparent shadow-none active:translate-x-0 active:translate-y-0 active:shadow-none text-primary hover:underline",
+      },
+      size: {
+        default: "h-10 px-4 py-2",
+        sm: "h-9 px-3 text-xs",
+        lg: "h-11 px-8 text-base",
+        icon: "h-10 w-10",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+export interface ButtonProps
+  extends
+    React.ButtonHTMLAttributes<HTMLButtonElement>,
+    VariantProps<typeof buttonVariants> {
+  asChild?: boolean;
+}
+
+const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
+  ({ className, variant, size, asChild = false, ...props }, ref) => {
+    const Comp = asChild ? Slot : "button";
+    return (
+      <Comp
+        className={cn(buttonVariants({ variant, size, className }))}
+        ref={ref}
+        {...props}
+      />
+    );
+  },
+);
+Button.displayName = "Button";
+
+export { Button, buttonVariants };

apps/gui/src/components/ui/card.tsx

@@ -0,0 +1,100 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Card({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<"div"> & { size?: "default" | "sm" }) {
+  return (
+    <div
+      data-slot="card"
+      data-size={size}
+      className={cn(
+        "group/card flex flex-col gap-(--card-spacing) overflow-hidden border border-border/30 bg-card py-(--card-spacing) text-sm text-card-foreground shadow-[2px_2px_0_0_var(--border)] [--card-spacing:--spacing(4)] data-[size=sm]:[--card-spacing:--spacing(3)]",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-header"
+      className={cn(
+        "group/card-header @container/card-header grid auto-rows-min items-start gap-1 px-(--card-spacing) has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto] border-b border-dotted border-border/20 pb-4 mb-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn("font-head text-headline-sm text-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function CardAction({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-action"
+      className={cn(
+        "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-content"
+      className={cn("px-(--card-spacing)", className)}
+      {...props}
+    />
+  );
+}
+
+function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-footer"
+      className={cn(
+        "flex items-center border-t border-dotted border-border/20 bg-muted/30 px-(--card-spacing) pt-(--card-spacing)",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Card,
+  CardHeader,
+  CardFooter,
+  CardTitle,
+  CardAction,
+  CardDescription,
+  CardContent,
+};

apps/gui/src/components/ui/checkbox.tsx

@@ -0,0 +1,32 @@
+"use client";
+
+import * as React from "react";
+import { CheckIcon } from "lucide-react";
+import { Checkbox as CheckboxPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+function Checkbox({
+  className,
+  ...props
+}: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
+  return (
+    <CheckboxPrimitive.Root
+      data-slot="checkbox"
+      className={cn(
+        "peer relative flex size-5 shrink-0 items-center justify-center rounded border-2 bg-input shadow-sm transition-colors outline-none group-has-disabled/field:opacity-50 after:absolute after:-inset-x-3 after:-inset-y-2 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive data-checked:border-border data-checked:bg-primary data-checked:text-primary-foreground",
+        className,
+      )}
+      {...props}
+    >
+      <CheckboxPrimitive.Indicator
+        data-slot="checkbox-indicator"
+        className="grid place-content-center text-current transition-none [&>svg]:size-3.5"
+      >
+        <CheckIcon />
+      </CheckboxPrimitive.Indicator>
+    </CheckboxPrimitive.Root>
+  );
+}
+
+export { Checkbox };

apps/gui/src/components/ui/combobox.tsx

@@ -0,0 +1,302 @@
+"use client";
+
+import * as React from "react";
+import { Combobox as ComboboxPrimitive } from "@base-ui/react";
+import { CheckIcon, ChevronDownIcon, XIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+import {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupInput,
+} from "@/components/ui/input-group";
+
+const Combobox = ComboboxPrimitive.Root;
+
+function ComboboxValue({ ...props }: ComboboxPrimitive.Value.Props) {
+  return <ComboboxPrimitive.Value data-slot="combobox-value" {...props} />;
+}
+
+function ComboboxTrigger({
+  className,
+  children,
+  ...props
+}: ComboboxPrimitive.Trigger.Props) {
+  return (
+    <ComboboxPrimitive.Trigger
+      data-slot="combobox-trigger"
+      className={cn("[&_svg:not([class*='size-'])]:size-4", className)}
+      {...props}
+    >
+      {children}
+      <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+    </ComboboxPrimitive.Trigger>
+  );
+}
+
+function ComboboxClear({ className, ...props }: ComboboxPrimitive.Clear.Props) {
+  return (
+    <ComboboxPrimitive.Clear
+      data-slot="combobox-clear"
+      render={<InputGroupButton variant="ghost" size="icon-xs" />}
+      className={cn(className)}
+      {...props}
+    >
+      <XIcon className="pointer-events-none" />
+    </ComboboxPrimitive.Clear>
+  );
+}
+
+function ComboboxInput({
+  className,
+  children,
+  disabled = false,
+  showTrigger = true,
+  showClear = false,
+  ...props
+}: ComboboxPrimitive.Input.Props & {
+  showTrigger?: boolean;
+  showClear?: boolean;
+}) {
+  return (
+    <InputGroup className={cn("w-auto", className)}>
+      <ComboboxPrimitive.Input
+        render={<InputGroupInput disabled={disabled} />}
+        {...props}
+      />
+      <InputGroupAddon align="inline-end">
+        {showTrigger && (
+          <ComboboxTrigger
+            render={
+              <InputGroupButton
+                size="icon-xs"
+                variant="ghost"
+                data-slot="input-group-button"
+                className="group-has-data-[slot=combobox-clear]/input-group:hidden data-pressed:bg-transparent"
+                disabled={disabled}
+              />
+            }
+          />
+        )}
+        {showClear && <ComboboxClear disabled={disabled} />}
+      </InputGroupAddon>
+      {children}
+    </InputGroup>
+  );
+}
+
+function ComboboxContent({
+  className,
+  side = "bottom",
+  sideOffset = 6,
+  align = "start",
+  alignOffset = 0,
+  anchor,
+  ...props
+}: ComboboxPrimitive.Popup.Props &
+  Pick<
+    ComboboxPrimitive.Positioner.Props,
+    "side" | "align" | "sideOffset" | "alignOffset" | "anchor"
+  >) {
+  return (
+    <ComboboxPrimitive.Portal>
+      <ComboboxPrimitive.Positioner
+        side={side}
+        sideOffset={sideOffset}
+        align={align}
+        alignOffset={alignOffset}
+        anchor={anchor}
+        className="isolate z-50"
+      >
+        <ComboboxPrimitive.Popup
+          data-slot="combobox-content"
+          data-chips={!!anchor}
+          className={cn(
+            "group/combobox-content relative max-h-(--available-height) w-(--anchor-width) max-w-(--available-width) min-w-[calc(var(--anchor-width)+--spacing(7))] origin-(--transform-origin) overflow-hidden rounded border-2 bg-popover text-popover-foreground shadow-md duration-100 data-[chips=true]:min-w-(--anchor-width) data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 *:data-[slot=input-group]:m-1 *:data-[slot=input-group]:mb-0 *:data-[slot=input-group]:h-8 *:data-[slot=input-group]:border-input/30 *:data-[slot=input-group]:bg-input/30 *:data-[slot=input-group]:shadow-none data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+            className,
+          )}
+          {...props}
+        />
+      </ComboboxPrimitive.Positioner>
+    </ComboboxPrimitive.Portal>
+  );
+}
+
+function ComboboxList({ className, ...props }: ComboboxPrimitive.List.Props) {
+  return (
+    <ComboboxPrimitive.List
+      data-slot="combobox-list"
+      className={cn(
+        "no-scrollbar max-h-[min(calc(--spacing(72)---spacing(9)),calc(var(--available-height)---spacing(9)))] scroll-py-1 overflow-y-auto overscroll-contain p-1 data-empty:p-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ComboboxItem({
+  className,
+  children,
+  ...props
+}: ComboboxPrimitive.Item.Props) {
+  return (
+    <ComboboxPrimitive.Item
+      data-slot="combobox-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-2 rounded-sm py-1 pr-8 pl-1.5 text-sm outline-hidden select-none data-highlighted:bg-accent data-highlighted:text-accent-foreground not-data-[variant=destructive]:data-highlighted:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      <ComboboxPrimitive.ItemIndicator
+        render={
+          <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center" />
+        }
+      >
+        <CheckIcon className="pointer-events-none" />
+      </ComboboxPrimitive.ItemIndicator>
+    </ComboboxPrimitive.Item>
+  );
+}
+
+function ComboboxGroup({ className, ...props }: ComboboxPrimitive.Group.Props) {
+  return (
+    <ComboboxPrimitive.Group
+      data-slot="combobox-group"
+      className={cn(className)}
+      {...props}
+    />
+  );
+}
+
+function ComboboxLabel({
+  className,
+  ...props
+}: ComboboxPrimitive.GroupLabel.Props) {
+  return (
+    <ComboboxPrimitive.GroupLabel
+      data-slot="combobox-label"
+      className={cn("px-2 py-1.5 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function ComboboxCollection({ ...props }: ComboboxPrimitive.Collection.Props) {
+  return (
+    <ComboboxPrimitive.Collection data-slot="combobox-collection" {...props} />
+  );
+}
+
+function ComboboxEmpty({ className, ...props }: ComboboxPrimitive.Empty.Props) {
+  return (
+    <ComboboxPrimitive.Empty
+      data-slot="combobox-empty"
+      className={cn(
+        "hidden w-full justify-center py-2 text-center text-sm text-muted-foreground group-data-empty/combobox-content:flex",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ComboboxSeparator({
+  className,
+  ...props
+}: ComboboxPrimitive.Separator.Props) {
+  return (
+    <ComboboxPrimitive.Separator
+      data-slot="combobox-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  );
+}
+
+function ComboboxChips({
+  className,
+  ...props
+}: React.ComponentPropsWithRef<typeof ComboboxPrimitive.Chips> &
+  ComboboxPrimitive.Chips.Props) {
+  return (
+    <ComboboxPrimitive.Chips
+      data-slot="combobox-chips"
+      className={cn(
+        "flex min-h-8 flex-wrap items-center gap-1 rounded border-2 bg-input bg-clip-padding px-2.5 py-1 text-sm shadow-sm transition-colors focus-within:outline-2 focus-within:outline-offset-2 focus-within:outline-primary has-aria-invalid:border-destructive has-data-[slot=combobox-chip]:px-1",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ComboboxChip({
+  className,
+  children,
+  showRemove = true,
+  ...props
+}: ComboboxPrimitive.Chip.Props & {
+  showRemove?: boolean;
+}) {
+  return (
+    <ComboboxPrimitive.Chip
+      data-slot="combobox-chip"
+      className={cn(
+        "flex h-[calc(--spacing(5.25))] w-fit items-center justify-center gap-1 rounded-sm border-2 bg-muted px-1.5 text-xs font-medium whitespace-nowrap text-foreground has-disabled:pointer-events-none has-disabled:cursor-not-allowed has-disabled:opacity-50 has-data-[slot=combobox-chip-remove]:pr-0",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      {showRemove && (
+        <ComboboxPrimitive.ChipRemove
+          render={<InputGroupButton variant="ghost" size="icon-xs" />}
+          className="-ml-1 opacity-50 hover:opacity-100"
+          data-slot="combobox-chip-remove"
+        >
+          <XIcon className="pointer-events-none" />
+        </ComboboxPrimitive.ChipRemove>
+      )}
+    </ComboboxPrimitive.Chip>
+  );
+}
+
+function ComboboxChipsInput({
+  className,
+  ...props
+}: ComboboxPrimitive.Input.Props) {
+  return (
+    <ComboboxPrimitive.Input
+      data-slot="combobox-chip-input"
+      className={cn("min-w-16 flex-1 outline-none", className)}
+      {...props}
+    />
+  );
+}
+
+function useComboboxAnchor() {
+  return React.useRef<HTMLDivElement | null>(null);
+}
+
+export {
+  Combobox,
+  ComboboxInput,
+  ComboboxContent,
+  ComboboxList,
+  ComboboxItem,
+  ComboboxGroup,
+  ComboboxLabel,
+  ComboboxCollection,
+  ComboboxEmpty,
+  ComboboxSeparator,
+  ComboboxChips,
+  ComboboxChip,
+  ComboboxChipsInput,
+  ComboboxTrigger,
+  ComboboxValue,
+  useComboboxAnchor,
+};

apps/gui/src/components/ui/dialog.tsx

@@ -0,0 +1,164 @@
+"use client";
+
+import * as React from "react";
+import { XIcon } from "lucide-react";
+import { Dialog as DialogPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+
+function Dialog({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Root>) {
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />;
+}
+
+function DialogTrigger({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />;
+}
+
+function DialogPortal({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Portal>) {
+  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />;
+}
+
+function DialogClose({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Close>) {
+  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />;
+}
+
+function DialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
+  return (
+    <DialogPrimitive.Overlay
+      data-slot="dialog-overlay"
+      className={cn(
+        "fixed inset-0 isolate z-50 bg-foreground/20 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function DialogContent({
+  className,
+  children,
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Content> & {
+  showCloseButton?: boolean;
+}) {
+  return (
+    <DialogPortal>
+      <DialogOverlay />
+      <DialogPrimitive.Content
+        data-slot="dialog-content"
+        className={cn(
+          "fixed top-1/2 left-1/2 z-50 grid w-full max-w-[calc(100%-2rem)] -translate-x-1/2 -translate-y-1/2 gap-4 rounded border-2 bg-popover p-4 text-sm text-popover-foreground shadow-md duration-100 outline-none sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <DialogPrimitive.Close data-slot="dialog-close" asChild>
+            <Button
+              variant="outline"
+              className="absolute top-2 right-2"
+              size="icon"
+            >
+              <XIcon />
+              <span className="sr-only">Close</span>
+            </Button>
+          </DialogPrimitive.Close>
+        )}
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  );
+}
+
+function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="dialog-header"
+      className={cn("flex flex-col gap-2", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogFooter({
+  className,
+  showCloseButton = false,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showCloseButton?: boolean;
+}) {
+  return (
+    <div
+      data-slot="dialog-footer"
+      className={cn(
+        "-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t-2 bg-muted/50 p-4 sm:flex-row sm:justify-end",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      {showCloseButton && (
+        <DialogPrimitive.Close asChild>
+          <Button variant="outline">Close</Button>
+        </DialogPrimitive.Close>
+      )}
+    </div>
+  );
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      data-slot="dialog-title"
+      className={cn("font-head text-base leading-none font-medium", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      data-slot="dialog-description"
+      className={cn(
+        "text-sm text-muted-foreground *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+};

apps/gui/src/components/ui/dropdown-menu.tsx

@@ -0,0 +1,200 @@
+"use client";
+
+import * as React from "react";
+import * as DropdownMenuPrimitive from "@radix-ui/react-dropdown-menu";
+import { Check, ChevronRight, Circle } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const DropdownMenu = DropdownMenuPrimitive.Root;
+
+const DropdownMenuTrigger = DropdownMenuPrimitive.Trigger;
+
+const DropdownMenuGroup = DropdownMenuPrimitive.Group;
+
+const DropdownMenuPortal = DropdownMenuPrimitive.Portal;
+
+const DropdownMenuSub = DropdownMenuPrimitive.Sub;
+
+const DropdownMenuRadioGroup = DropdownMenuPrimitive.RadioGroup;
+
+const DropdownMenuSubTrigger = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubTrigger>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubTrigger> & {
+    inset?: boolean;
+  }
+>(({ className, inset, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubTrigger
+    ref={ref}
+    className={cn(
+      "flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent data-[state=open]:bg-accent [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  >
+    {children}
+    <ChevronRight className="ml-auto" />
+  </DropdownMenuPrimitive.SubTrigger>
+));
+DropdownMenuSubTrigger.displayName =
+  DropdownMenuPrimitive.SubTrigger.displayName;
+
+const DropdownMenuSubContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubContent>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubContent>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubContent
+    ref={ref}
+    className={cn(
+      "z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-lg data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-dropdown-menu-content-transform-origin]",
+      className,
+    )}
+    {...props}
+  />
+));
+DropdownMenuSubContent.displayName =
+  DropdownMenuPrimitive.SubContent.displayName;
+
+const DropdownMenuContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <DropdownMenuPrimitive.Portal>
+    <DropdownMenuPrimitive.Content
+      ref={ref}
+      sideOffset={sideOffset}
+      className={cn(
+        "z-50 max-h-[var(--radix-dropdown-menu-content-available-height)] min-w-[8rem] overflow-y-auto overflow-x-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-dropdown-menu-content-transform-origin]",
+        className,
+      )}
+      {...props}
+    />
+  </DropdownMenuPrimitive.Portal>
+));
+DropdownMenuContent.displayName = DropdownMenuPrimitive.Content.displayName;
+
+const DropdownMenuItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Item> & {
+    inset?: boolean;
+  }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Item
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  />
+));
+DropdownMenuItem.displayName = DropdownMenuPrimitive.Item.displayName;
+
+const DropdownMenuCheckboxItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.CheckboxItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.CheckboxItem>
+>(({ className, children, checked, ...props }, ref) => (
+  <DropdownMenuPrimitive.CheckboxItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className,
+    )}
+    checked={checked}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.CheckboxItem>
+));
+DropdownMenuCheckboxItem.displayName =
+  DropdownMenuPrimitive.CheckboxItem.displayName;
+
+const DropdownMenuRadioItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.RadioItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.RadioItem>
+>(({ className, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.RadioItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className,
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <Circle className="h-2 w-2 fill-current" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.RadioItem>
+));
+DropdownMenuRadioItem.displayName = DropdownMenuPrimitive.RadioItem.displayName;
+
+const DropdownMenuLabel = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Label> & {
+    inset?: boolean;
+  }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Label
+    ref={ref}
+    className={cn(
+      "px-2 py-1.5 text-sm font-semibold",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  />
+));
+DropdownMenuLabel.displayName = DropdownMenuPrimitive.Label.displayName;
+
+const DropdownMenuSeparator = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.Separator
+    ref={ref}
+    className={cn("-mx-1 my-1 h-px bg-muted", className)}
+    {...props}
+  />
+));
+DropdownMenuSeparator.displayName = DropdownMenuPrimitive.Separator.displayName;
+
+const DropdownMenuShortcut = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLSpanElement>) => {
+  return (
+    <span
+      className={cn("ml-auto text-xs tracking-widest opacity-60", className)}
+      {...props}
+    />
+  );
+};
+DropdownMenuShortcut.displayName = "DropdownMenuShortcut";
+
+export {
+  DropdownMenu,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuGroup,
+  DropdownMenuPortal,
+  DropdownMenuSub,
+  DropdownMenuSubContent,
+  DropdownMenuSubTrigger,
+  DropdownMenuRadioGroup,
+};

apps/gui/src/components/ui/empty.tsx

@@ -0,0 +1,101 @@
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+
+function Empty({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty"
+      className={cn(
+        "flex w-full min-w-0 flex-1 flex-col items-center justify-center gap-4 rounded border-2 bg-card p-6 text-center text-balance",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-header"
+      className={cn("flex max-w-sm flex-col items-center gap-2", className)}
+      {...props}
+    />
+  );
+}
+
+const emptyMediaVariants = cva(
+  "mb-2 flex shrink-0 items-center justify-center [&_svg]:pointer-events-none [&_svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        icon: "flex size-8 shrink-0 items-center justify-center rounded-lg bg-muted text-foreground [&_svg:not([class*='size-'])]:size-4",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+function EmptyMedia({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof emptyMediaVariants>) {
+  return (
+    <div
+      data-slot="empty-icon"
+      data-variant={variant}
+      className={cn(emptyMediaVariants({ variant, className }))}
+      {...props}
+    />
+  );
+}
+
+function EmptyTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-title"
+      className={cn("text-sm font-medium tracking-tight", className)}
+      {...props}
+    />
+  );
+}
+
+function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <div
+      data-slot="empty-description"
+      className={cn(
+        "text-sm/relaxed text-muted-foreground [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-content"
+      className={cn(
+        "flex w-full max-w-sm min-w-0 flex-col items-center gap-2.5 text-sm text-balance",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Empty,
+  EmptyHeader,
+  EmptyTitle,
+  EmptyDescription,
+  EmptyContent,
+  EmptyMedia,
+};

apps/gui/src/components/ui/input-group.tsx

@@ -0,0 +1,170 @@
+"use client";
+
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+
+function InputGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="input-group"
+      role="group"
+      className={cn(
+        "group/input-group border-input dark:bg-input/30 shadow-xs relative flex w-full items-center rounded-md border outline-none transition-[color,box-shadow]",
+        "h-9 has-[>textarea]:h-auto",
+
+        // Variants based on alignment.
+        "has-[>[data-align=inline-start]]:[&>input]:pl-2",
+        "has-[>[data-align=inline-end]]:[&>input]:pr-2",
+        "has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>[data-align=block-start]]:[&>input]:pb-3",
+        "has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-end]]:[&>input]:pt-3",
+
+        // Focus state.
+        "has-[[data-slot=input-group-control]:focus-visible]:ring-ring has-[[data-slot=input-group-control]:focus-visible]:ring-1",
+
+        // Error state.
+        "has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[[data-slot][aria-invalid=true]]:border-destructive dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40",
+
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+const inputGroupAddonVariants = cva(
+  "text-muted-foreground flex h-auto cursor-text select-none items-center justify-center gap-2 py-1.5 text-sm font-medium group-data-[disabled=true]/input-group:opacity-50 [&>kbd]:rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      align: {
+        "inline-start":
+          "order-first pl-3 has-[>button]:ml-[-0.45rem] has-[>kbd]:ml-[-0.35rem]",
+        "inline-end":
+          "order-last pr-3 has-[>button]:mr-[-0.4rem] has-[>kbd]:mr-[-0.35rem]",
+        "block-start":
+          "[.border-b]:pb-3 order-first w-full justify-start px-3 pt-3 group-has-[>input]/input-group:pt-2.5",
+        "block-end":
+          "[.border-t]:pt-3 order-last w-full justify-start px-3 pb-3 group-has-[>input]/input-group:pb-2.5",
+      },
+    },
+    defaultVariants: {
+      align: "inline-start",
+    },
+  },
+);
+
+function InputGroupAddon({
+  className,
+  align = "inline-start",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof inputGroupAddonVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="input-group-addon"
+      data-align={align}
+      className={cn(inputGroupAddonVariants({ align }), className)}
+      onClick={(e) => {
+        if ((e.target as HTMLElement).closest("button")) {
+          return;
+        }
+        e.currentTarget.parentElement?.querySelector("input")?.focus();
+      }}
+      {...props}
+    />
+  );
+}
+
+const inputGroupButtonVariants = cva(
+  "flex items-center gap-2 text-sm shadow-none",
+  {
+    variants: {
+      size: {
+        xs: "h-6 gap-1 rounded-[calc(var(--radius)-5px)] px-2 has-[>svg]:px-2 [&>svg:not([class*='size-'])]:size-3.5",
+        sm: "h-8 gap-1.5 rounded-md px-2.5 has-[>svg]:px-2.5",
+        "icon-xs":
+          "size-6 rounded-[calc(var(--radius)-5px)] p-0 has-[>svg]:p-0",
+        "icon-sm": "size-8 p-0 has-[>svg]:p-0",
+      },
+    },
+    defaultVariants: {
+      size: "xs",
+    },
+  },
+);
+
+function InputGroupButton({
+  className,
+  type = "button",
+  variant = "ghost",
+  size = "xs",
+  ...props
+}: Omit<React.ComponentProps<typeof Button>, "size"> &
+  VariantProps<typeof inputGroupButtonVariants>) {
+  return (
+    <Button
+      type={type}
+      data-size={size}
+      variant={variant}
+      className={cn(inputGroupButtonVariants({ size }), className)}
+      {...props}
+    />
+  );
+}
+
+function InputGroupText({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      className={cn(
+        "text-muted-foreground flex items-center gap-2 text-sm [&_svg:not([class*='size-'])]:size-4 [&_svg]:pointer-events-none",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function InputGroupInput({
+  className,
+  ...props
+}: React.ComponentProps<"input">) {
+  return (
+    <Input
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 rounded-none border-0 bg-transparent shadow-none focus-visible:ring-0 dark:bg-transparent",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function InputGroupTextarea({
+  className,
+  ...props
+}: React.ComponentProps<"textarea">) {
+  return (
+    <Textarea
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 resize-none rounded-none border-0 bg-transparent py-3 shadow-none focus-visible:ring-0 dark:bg-transparent",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupText,
+  InputGroupInput,
+  InputGroupTextarea,
+};

apps/gui/src/components/ui/input.tsx

@@ -0,0 +1,19 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <input
+      type={type}
+      data-slot="input"
+      className={cn(
+        "h-8 w-full min-w-0 rounded border-2 bg-input px-3 py-2 text-sm shadow-sm transition-colors outline-none file:inline-flex file:h-6 file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Input };

apps/gui/src/components/ui/item.tsx

@@ -0,0 +1,201 @@
+import * as React from "react";
+import { mergeProps } from "@base-ui/react/merge-props";
+import { useRender } from "@base-ui/react/use-render";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+import { Separator } from "@/components/ui/separator";
+
+function ItemGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      role="list"
+      data-slot="item-group"
+      className={cn(
+        "group/item-group flex w-full flex-col gap-4 has-data-[size=sm]:gap-2.5 has-data-[size=xs]:gap-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ItemSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="item-separator"
+      orientation="horizontal"
+      className={cn("my-2", className)}
+      {...props}
+    />
+  );
+}
+
+const itemVariants = cva(
+  "group/item flex w-full flex-wrap items-center rounded border-2 text-sm transition-colors duration-100 outline-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary [a]:transition-colors [a]:hover:bg-accent",
+  {
+    variants: {
+      variant: {
+        default: "border-transparent",
+        outline: "border-border",
+        muted: "border-transparent bg-muted/50",
+      },
+      size: {
+        default: "gap-2.5 px-3 py-2.5",
+        sm: "gap-2.5 px-3 py-2.5",
+        xs: "gap-2 px-2.5 py-2 in-data-[slot=dropdown-menu-content]:p-0",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+function Item({
+  className,
+  variant = "default",
+  size = "default",
+  render,
+  ...props
+}: useRender.ComponentProps<"div"> & VariantProps<typeof itemVariants>) {
+  return useRender({
+    defaultTagName: "div",
+    props: mergeProps<"div">(
+      {
+        className: cn(itemVariants({ variant, size, className })),
+      },
+      props,
+    ),
+    render,
+    state: {
+      slot: "item",
+      variant,
+      size,
+    },
+  });
+}
+
+const itemMediaVariants = cva(
+  "flex shrink-0 items-center justify-center gap-2 group-has-data-[slot=item-description]/item:translate-y-0.5 group-has-data-[slot=item-description]/item:self-start [&_svg]:pointer-events-none",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        icon: "[&_svg:not([class*='size-'])]:size-4",
+        image:
+          "size-10 overflow-hidden rounded-sm group-data-[size=sm]/item:size-8 group-data-[size=xs]/item:size-6 [&_img]:size-full [&_img]:object-cover",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+function ItemMedia({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof itemMediaVariants>) {
+  return (
+    <div
+      data-slot="item-media"
+      data-variant={variant}
+      className={cn(itemMediaVariants({ variant, className }))}
+      {...props}
+    />
+  );
+}
+
+function ItemContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-content"
+      className={cn(
+        "flex flex-1 flex-col gap-1 group-data-[size=xs]/item:gap-0 [&+[data-slot=item-content]]:flex-none",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ItemTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-title"
+      className={cn(
+        "line-clamp-1 flex w-fit items-center gap-2 text-sm leading-snug font-medium underline-offset-4",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ItemDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <p
+      data-slot="item-description"
+      className={cn(
+        "line-clamp-2 text-left text-sm leading-normal font-normal text-muted-foreground group-data-[size=xs]/item:text-xs [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ItemActions({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-actions"
+      className={cn("flex items-center gap-2", className)}
+      {...props}
+    />
+  );
+}
+
+function ItemHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-header"
+      className={cn(
+        "flex basis-full items-center justify-between gap-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function ItemFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-footer"
+      className={cn(
+        "flex basis-full items-center justify-between gap-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Item,
+  ItemMedia,
+  ItemContent,
+  ItemActions,
+  ItemGroup,
+  ItemSeparator,
+  ItemTitle,
+  ItemDescription,
+  ItemHeader,
+  ItemFooter,
+};

apps/gui/src/components/ui/label.tsx

@@ -0,0 +1,24 @@
+"use client";
+
+import * as React from "react";
+import { Label as LabelPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+function Label({
+  className,
+  ...props
+}: React.ComponentProps<typeof LabelPrimitive.Root>) {
+  return (
+    <LabelPrimitive.Root
+      data-slot="label"
+      className={cn(
+        "flex items-center gap-2 text-sm leading-none font-head font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Label };

apps/gui/src/components/ui/menubar.tsx

@@ -0,0 +1,292 @@
+"use client";
+
+import * as React from "react";
+import { Menu as MenuPrimitive } from "@base-ui/react/menu";
+import { Menubar as MenubarPrimitive } from "@base-ui/react/menubar";
+import { CheckIcon, ChevronRight } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+function Menubar({ className, ...props }: MenubarPrimitive.Props) {
+  return (
+    <MenubarPrimitive
+      data-slot="menubar"
+      className={cn(
+        "flex h-8 items-center gap-0.5 rounded border-2 bg-background p-[3px] shadow-md",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function MenubarMenu({ ...props }: MenuPrimitive.Root.Props) {
+  return <MenuPrimitive.Root data-slot="menubar-menu" {...props} />;
+}
+
+function MenubarGroup({ ...props }: MenuPrimitive.Group.Props) {
+  return <MenuPrimitive.Group data-slot="menubar-group" {...props} />;
+}
+
+function MenubarPortal({ ...props }: MenuPrimitive.Portal.Props) {
+  return <MenuPrimitive.Portal data-slot="menubar-portal" {...props} />;
+}
+
+function MenubarTrigger({ className, ...props }: MenuPrimitive.Trigger.Props) {
+  return (
+    <MenuPrimitive.Trigger
+      data-slot="menubar-trigger"
+      className={cn(
+        "flex items-center rounded-sm px-1.5 py-[2px] text-sm font-medium outline-none select-none hover:bg-primary/15 hover:text-primary aria-expanded:bg-primary/15 aria-expanded:text-primary cursor-pointer",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function MenubarContent({
+  className,
+  align = "start",
+  alignOffset = -4,
+  sideOffset = 8,
+  ...props
+}: MenuPrimitive.Popup.Props & {
+  align?: MenuPrimitive.Positioner.Props["align"];
+  alignOffset?: MenuPrimitive.Positioner.Props["alignOffset"];
+  sideOffset?: MenuPrimitive.Positioner.Props["sideOffset"];
+}) {
+  return (
+    <MenuPrimitive.Portal>
+      <MenuPrimitive.Positioner
+        align={align}
+        alignOffset={alignOffset}
+        sideOffset={sideOffset}
+      >
+        <MenuPrimitive.Popup
+          data-slot="menubar-content"
+          className={cn(
+            "min-w-36 rounded border-2 bg-popover p-1 text-popover-foreground shadow-md duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95",
+            className,
+          )}
+          {...props}
+        />
+      </MenuPrimitive.Positioner>
+    </MenuPrimitive.Portal>
+  );
+}
+
+function MenubarItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: MenuPrimitive.Item.Props & {
+  inset?: boolean;
+  variant?: "default" | "destructive";
+}) {
+  return (
+    <MenuPrimitive.Item
+      data-slot="menubar-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/menubar-item gap-1.5 rounded-sm px-2 py-1.5 text-sm focus:bg-primary/15 focus:text-primary data-highlighted:bg-primary/15 data-highlighted:text-primary not-data-[variant=destructive]:focus:**:text-primary not-data-[variant=destructive]:data-highlighted:**:text-primary data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive data-[variant=destructive]:data-highlighted:bg-destructive/10 data-[variant=destructive]:data-highlighted:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 dark:data-[variant=destructive]:data-highlighted:bg-destructive/20 data-disabled:opacity-50 [&_svg:not([class*='size-'])]:size-4 data-[variant=destructive]:*:[svg]:text-destructive!",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function MenubarCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: MenuPrimitive.CheckboxItem.Props & {
+  inset?: boolean;
+}) {
+  return (
+    <MenuPrimitive.CheckboxItem
+      data-slot="menubar-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-sm py-1.5 pr-2 pl-7 text-sm outline-none select-none focus:bg-primary/15 focus:text-primary data-highlighted:bg-primary/15 data-highlighted:text-primary focus:**:text-primary data-highlighted:**:text-primary data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0",
+        className,
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-1.5 flex size-4 items-center justify-center [&_svg:not([class*='size-'])]:size-4">
+        <MenuPrimitive.CheckboxItemIndicator>
+          <CheckIcon />
+        </MenuPrimitive.CheckboxItemIndicator>
+      </span>
+      {children}
+    </MenuPrimitive.CheckboxItem>
+  );
+}
+
+function MenubarRadioGroup({ ...props }: MenuPrimitive.RadioGroup.Props) {
+  return (
+    <MenuPrimitive.RadioGroup data-slot="menubar-radio-group" {...props} />
+  );
+}
+
+function MenubarRadioItem({
+  className,
+  children,
+  inset,
+  ...props
+}: MenuPrimitive.RadioItem.Props & {
+  inset?: boolean;
+}) {
+  return (
+    <MenuPrimitive.RadioItem
+      data-slot="menubar-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-sm py-1.5 pr-2 pl-7 text-sm outline-none select-none focus:bg-primary/15 focus:text-primary data-highlighted:bg-primary/15 data-highlighted:text-primary focus:**:text-primary data-highlighted:**:text-primary data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-1.5 flex size-4 items-center justify-center [&_svg:not([class*='size-'])]:size-4">
+        <MenuPrimitive.RadioItemIndicator>
+          <CheckIcon />
+        </MenuPrimitive.RadioItemIndicator>
+      </span>
+      {children}
+    </MenuPrimitive.RadioItem>
+  );
+}
+
+function MenubarLabel({
+  className,
+  inset,
+  ...props
+}: MenuPrimitive.GroupLabel.Props & {
+  inset?: boolean;
+}) {
+  return (
+    <MenuPrimitive.GroupLabel
+      data-slot="menubar-label"
+      data-inset={inset}
+      className={cn(
+        "px-1.5 py-1 text-sm font-medium data-inset:pl-7",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function MenubarSeparator({
+  className,
+  ...props
+}: MenuPrimitive.Separator.Props) {
+  return (
+    <MenuPrimitive.Separator
+      data-slot="menubar-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  );
+}
+
+function MenubarShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="menubar-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/menubar-item:text-primary group-data-highlighted/menubar-item:text-primary",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+// Submenu components using SubmenuRoot and SubmenuTrigger
+function MenubarSub({ ...props }: MenuPrimitive.SubmenuRoot.Props) {
+  return <MenuPrimitive.SubmenuRoot data-slot="menubar-sub" {...props} />;
+}
+
+function MenubarSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: MenuPrimitive.SubmenuTrigger.Props & {
+  inset?: boolean;
+}) {
+  return (
+    <MenuPrimitive.SubmenuTrigger
+      data-slot="menubar-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default select-none items-center gap-1.5 rounded-sm px-2 py-1.5 text-sm focus:bg-primary/15 focus:text-primary data-highlighted:bg-primary/15 data-highlighted:text-primary data-inset:pl-7 data-open:bg-primary/15 data-open:text-primary data-highlighted:text-primary [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRight className="ml-auto size-4" />
+    </MenuPrimitive.SubmenuTrigger>
+  );
+}
+
+function MenubarSubContent({
+  className,
+  align = "start",
+  alignOffset = -4,
+  sideOffset = 8,
+  ...props
+}: MenuPrimitive.Popup.Props & {
+  align?: MenuPrimitive.Positioner.Props["align"];
+  alignOffset?: MenuPrimitive.Positioner.Props["alignOffset"];
+  sideOffset?: MenuPrimitive.Positioner.Props["sideOffset"];
+}) {
+  return (
+    <MenuPrimitive.Portal>
+      <MenuPrimitive.Positioner
+        align={align}
+        alignOffset={alignOffset}
+        sideOffset={sideOffset}
+      >
+        <MenuPrimitive.Popup
+          data-slot="menubar-sub-content"
+          className={cn(
+            "min-w-32 rounded border-2 bg-popover p-1 text-popover-foreground shadow-md duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+            className,
+          )}
+          {...props}
+        />
+      </MenuPrimitive.Positioner>
+    </MenuPrimitive.Portal>
+  );
+}
+
+export {
+  Menubar,
+  MenubarPortal,
+  MenubarMenu,
+  MenubarTrigger,
+  MenubarContent,
+  MenubarGroup,
+  MenubarSeparator,
+  MenubarLabel,
+  MenubarItem,
+  MenubarShortcut,
+  MenubarCheckboxItem,
+  MenubarRadioGroup,
+  MenubarRadioItem,
+  MenubarSub,
+  MenubarSubTrigger,
+  MenubarSubContent,
+};

apps/gui/src/components/ui/navigation-menu.tsx

@@ -0,0 +1,167 @@
+import * as React from "react";
+import { cva } from "class-variance-authority";
+import { ChevronDownIcon } from "lucide-react";
+import { NavigationMenu as NavigationMenuPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+function NavigationMenu({
+  className,
+  children,
+  viewport = true,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Root> & {
+  viewport?: boolean;
+}) {
+  return (
+    <NavigationMenuPrimitive.Root
+      data-slot="navigation-menu"
+      data-viewport={viewport}
+      className={cn(
+        "group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      {viewport && <NavigationMenuViewport />}
+    </NavigationMenuPrimitive.Root>
+  );
+}
+
+function NavigationMenuList({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.List>) {
+  return (
+    <NavigationMenuPrimitive.List
+      data-slot="navigation-menu-list"
+      className={cn(
+        "group flex flex-1 list-none items-center justify-center gap-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Item>) {
+  return (
+    <NavigationMenuPrimitive.Item
+      data-slot="navigation-menu-item"
+      className={cn("relative", className)}
+      {...props}
+    />
+  );
+}
+
+const navigationMenuTriggerStyle = cva(
+  "group/navigation-menu-trigger inline-flex h-9 w-max items-center justify-center px-2.5 py-1.5 text-sm font-medium transition-all outline-none hover:bg-secondary hover:text-foreground focus:bg-secondary focus:text-foreground focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:pointer-events-none disabled:opacity-50 data-popup-open:bg-secondary data-popup-open:text-foreground data-open:bg-secondary data-open:text-foreground",
+);
+
+function NavigationMenuTrigger({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Trigger>) {
+  return (
+    <NavigationMenuPrimitive.Trigger
+      data-slot="navigation-menu-trigger"
+      className={cn(navigationMenuTriggerStyle(), "group", className)}
+      {...props}
+    >
+      {children}{" "}
+      <ChevronDownIcon
+        className="relative top-px ml-1 size-3 transition duration-300 group-data-popup-open/navigation-menu-trigger:rotate-180 group-data-open/navigation-menu-trigger:rotate-180"
+        aria-hidden="true"
+      />
+    </NavigationMenuPrimitive.Trigger>
+  );
+}
+
+function NavigationMenuContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Content>) {
+  return (
+    <NavigationMenuPrimitive.Content
+      data-slot="navigation-menu-content"
+      className={cn(
+        "top-0 left-0 w-full p-1 ease-[cubic-bezier(0.22,1,0.36,1)] group-data-[viewport=false]/navigation-menu:top-full group-data-[viewport=false]/navigation-menu:mt-1.5 group-data-[viewport=false]/navigation-menu:overflow-hidden group-data-[viewport=false]/navigation-menu:border group-data-[viewport=false]/navigation-menu:border-border/30 group-data-[viewport=false]/navigation-menu:bg-popover group-data-[viewport=false]/navigation-menu:text-popover-foreground group-data-[viewport=false]/navigation-menu:shadow-md group-data-[viewport=false]/navigation-menu:duration-300 data-[motion=from-end]:slide-in-from-right-52 data-[motion=from-start]:slide-in-from-left-52 data-[motion=to-end]:slide-out-to-right-52 data-[motion=to-start]:slide-out-to-left-52 data-[motion^=from-]:animate-in data-[motion^=from-]:fade-in data-[motion^=to-]:animate-out data-[motion^=to-]:fade-out **:data-[slot=navigation-menu-link]:focus:ring-0 **:data-[slot=navigation-menu-link]:focus:outline-none md:absolute md:w-auto group-data-[viewport=false]/navigation-menu:data-open:animate-in group-data-[viewport=false]/navigation-menu:data-open:fade-in-0 group-data-[viewport=false]/navigation-menu:data-open:zoom-in-95 group-data-[viewport=false]/navigation-menu:data-closed:animate-out group-data-[viewport=false]/navigation-menu:data-closed:fade-out-0 group-data-[viewport=false]/navigation-menu:data-closed:zoom-out-95",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuViewport({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Viewport>) {
+  return (
+    <div
+      className={cn(
+        "absolute top-full left-0 isolate z-50 flex justify-center",
+      )}
+    >
+      <NavigationMenuPrimitive.Viewport
+        data-slot="navigation-menu-viewport"
+        className={cn(
+          "origin-top-center relative mt-1.5 h-(--radix-navigation-menu-viewport-height) w-full overflow-hidden border border-border/30 bg-popover text-popover-foreground shadow-md duration-100 md:w-(--radix-navigation-menu-viewport-width) data-open:animate-in data-open:zoom-in-90 data-closed:animate-out data-closed:zoom-out-90",
+          className,
+        )}
+        {...props}
+      />
+    </div>
+  );
+}
+
+function NavigationMenuLink({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Link>) {
+  return (
+    <NavigationMenuPrimitive.Link
+      data-slot="navigation-menu-link"
+      className={cn(
+        "flex items-center gap-2 p-2 text-sm transition-all outline-none hover:bg-secondary hover:text-foreground focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary in-data-[slot=navigation-menu-content]:rounded-sm data-active:bg-primary/15 data-active:text-primary [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuIndicator({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Indicator>) {
+  return (
+    <NavigationMenuPrimitive.Indicator
+      data-slot="navigation-menu-indicator"
+      className={cn(
+        "top-full z-1 flex h-1.5 items-end justify-center overflow-hidden data-[state=hidden]:animate-out data-[state=hidden]:fade-out data-[state=visible]:animate-in data-[state=visible]:fade-in",
+        className,
+      )}
+      {...props}
+    >
+      <div className="relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm bg-border shadow-md" />
+    </NavigationMenuPrimitive.Indicator>
+  );
+}
+
+export {
+  NavigationMenu,
+  NavigationMenuList,
+  NavigationMenuItem,
+  NavigationMenuContent,
+  NavigationMenuTrigger,
+  NavigationMenuLink,
+  NavigationMenuIndicator,
+  NavigationMenuViewport,
+  navigationMenuTriggerStyle,
+};

apps/gui/src/components/ui/select.tsx

@@ -0,0 +1,202 @@
+"use client";
+
+import * as React from "react";
+import { Select as SelectPrimitive } from "@base-ui/react/select";
+import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const Select = SelectPrimitive.Root;
+
+function SelectGroup({ className, ...props }: SelectPrimitive.Group.Props) {
+  return (
+    <SelectPrimitive.Group
+      data-slot="select-group"
+      className={cn("scroll-my-1 p-1", className)}
+      {...props}
+    />
+  );
+}
+
+function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
+  return (
+    <SelectPrimitive.Value
+      data-slot="select-value"
+      className={cn("flex flex-1 text-left", className)}
+      {...props}
+    />
+  );
+}
+
+function SelectTrigger({
+  className,
+  size = "default",
+  children,
+  ...props
+}: SelectPrimitive.Trigger.Props & {
+  size?: "sm" | "default";
+}) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      data-size={size}
+      className={cn(
+        "flex w-fit items-center justify-between gap-1.5 rounded border border-border/30 bg-input py-2 pr-2 pl-2.5 text-sm whitespace-nowrap shadow-sm transition-colors outline-none select-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive data-placeholder:text-muted-foreground data-[size=default]:h-8 data-[size=sm]:h-7 data-[size=sm]:rounded *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon
+        render={
+          <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+        }
+      />
+    </SelectPrimitive.Trigger>
+  );
+}
+
+function SelectContent({
+  className,
+  children,
+  side = "bottom",
+  sideOffset = 4,
+  align = "center",
+  alignOffset = 0,
+  alignItemWithTrigger = true,
+  ...props
+}: SelectPrimitive.Popup.Props &
+  Pick<
+    SelectPrimitive.Positioner.Props,
+    "align" | "alignOffset" | "side" | "sideOffset" | "alignItemWithTrigger"
+  >) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Positioner
+        side={side}
+        sideOffset={sideOffset}
+        align={align}
+        alignOffset={alignOffset}
+        alignItemWithTrigger={alignItemWithTrigger}
+        className="isolate z-50"
+      >
+        <SelectPrimitive.Popup
+          data-slot="select-content"
+          data-align-trigger={alignItemWithTrigger}
+          className={cn(
+            "relative isolate z-50 max-h-(--available-height) w-(--anchor-width) min-w-36 origin-(--transform-origin) overflow-x-hidden overflow-y-auto rounded border border-border/30 bg-popover text-popover-foreground shadow-md duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+            className,
+          )}
+          {...props}
+        >
+          <SelectScrollUpButton />
+          <SelectPrimitive.List>{children}</SelectPrimitive.List>
+          <SelectScrollDownButton />
+        </SelectPrimitive.Popup>
+      </SelectPrimitive.Positioner>
+    </SelectPrimitive.Portal>
+  );
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: SelectPrimitive.GroupLabel.Props) {
+  return (
+    <SelectPrimitive.GroupLabel
+      data-slot="select-label"
+      className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: SelectPrimitive.Item.Props) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-1.5 rounded-sm py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
+        className,
+      )}
+      {...props}
+    >
+      <SelectPrimitive.ItemText className="flex flex-1 shrink-0 gap-2 whitespace-nowrap">
+        {children}
+      </SelectPrimitive.ItemText>
+      <SelectPrimitive.ItemIndicator
+        render={
+          <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center" />
+        }
+      >
+        <CheckIcon className="pointer-events-none" />
+      </SelectPrimitive.ItemIndicator>
+    </SelectPrimitive.Item>
+  );
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: SelectPrimitive.Separator.Props) {
+  return (
+    <SelectPrimitive.Separator
+      data-slot="select-separator"
+      className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  );
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollUpArrow>) {
+  return (
+    <SelectPrimitive.ScrollUpArrow
+      data-slot="select-scroll-up-button"
+      className={cn(
+        "top-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      <ChevronUpIcon />
+    </SelectPrimitive.ScrollUpArrow>
+  );
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollDownArrow>) {
+  return (
+    <SelectPrimitive.ScrollDownArrow
+      data-slot="select-scroll-down-button"
+      className={cn(
+        "bottom-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className,
+      )}
+      {...props}
+    >
+      <ChevronDownIcon />
+    </SelectPrimitive.ScrollDownArrow>
+  );
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+};

apps/gui/src/components/ui/separator.tsx

@@ -0,0 +1,31 @@
+"use client";
+
+import * as React from "react";
+import * as SeparatorPrimitive from "@radix-ui/react-separator";
+
+import { cn } from "@/lib/utils";
+
+const Separator = React.forwardRef<
+  React.ElementRef<typeof SeparatorPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof SeparatorPrimitive.Root>
+>(
+  (
+    { className, orientation = "horizontal", decorative = true, ...props },
+    ref,
+  ) => (
+    <SeparatorPrimitive.Root
+      ref={ref}
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border",
+        orientation === "horizontal" ? "h-[1px] w-full" : "h-full w-[1px]",
+        className,
+      )}
+      {...props}
+    />
+  ),
+);
+Separator.displayName = SeparatorPrimitive.Root.displayName;
+
+export { Separator };

apps/gui/src/components/ui/sheet.tsx

@@ -0,0 +1,141 @@
+"use client";
+
+import * as React from "react";
+import * as SheetPrimitive from "@radix-ui/react-dialog";
+import { cva, type VariantProps } from "class-variance-authority";
+import { X } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const Sheet = SheetPrimitive.Root;
+
+const SheetTrigger = SheetPrimitive.Trigger;
+
+const SheetClose = SheetPrimitive.Close;
+
+const SheetPortal = SheetPrimitive.Portal;
+
+const SheetOverlay = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Overlay>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Overlay>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Overlay
+    className={cn(
+      "fixed inset-0 z-50 bg-black/80  data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
+      className,
+    )}
+    {...props}
+    ref={ref}
+  />
+));
+SheetOverlay.displayName = SheetPrimitive.Overlay.displayName;
+
+const sheetVariants = cva(
+  "fixed z-50 gap-4 bg-background p-6 shadow-lg transition ease-in-out data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:duration-300 data-[state=open]:duration-500",
+  {
+    variants: {
+      side: {
+        top: "inset-x-0 top-0 border-b data-[state=closed]:slide-out-to-top data-[state=open]:slide-in-from-top",
+        bottom:
+          "inset-x-0 bottom-0 border-t data-[state=closed]:slide-out-to-bottom data-[state=open]:slide-in-from-bottom",
+        left: "inset-y-0 left-0 h-full w-3/4 border-r data-[state=closed]:slide-out-to-left data-[state=open]:slide-in-from-left sm:max-w-sm",
+        right:
+          "inset-y-0 right-0 h-full w-3/4  border-l data-[state=closed]:slide-out-to-right data-[state=open]:slide-in-from-right sm:max-w-sm",
+      },
+    },
+    defaultVariants: {
+      side: "right",
+    },
+  },
+);
+
+interface SheetContentProps
+  extends
+    React.ComponentPropsWithoutRef<typeof SheetPrimitive.Content>,
+    VariantProps<typeof sheetVariants> {}
+
+const SheetContent = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Content>,
+  SheetContentProps
+>(({ side = "right", className, children, ...props }, ref) => (
+  <SheetPortal>
+    <SheetOverlay />
+    <SheetPrimitive.Content
+      ref={ref}
+      className={cn(sheetVariants({ side }), className)}
+      {...props}
+    >
+      {children}
+      <SheetPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-secondary">
+        <X className="h-4 w-4" />
+        <span className="sr-only">Close</span>
+      </SheetPrimitive.Close>
+    </SheetPrimitive.Content>
+  </SheetPortal>
+));
+SheetContent.displayName = SheetPrimitive.Content.displayName;
+
+const SheetHeader = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn(
+      "flex flex-col space-y-2 text-center sm:text-left",
+      className,
+    )}
+    {...props}
+  />
+);
+SheetHeader.displayName = "SheetHeader";
+
+const SheetFooter = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn(
+      "flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2",
+      className,
+    )}
+    {...props}
+  />
+);
+SheetFooter.displayName = "SheetFooter";
+
+const SheetTitle = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Title>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Title>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Title
+    ref={ref}
+    className={cn("text-lg font-semibold text-foreground", className)}
+    {...props}
+  />
+));
+SheetTitle.displayName = SheetPrimitive.Title.displayName;
+
+const SheetDescription = React.forwardRef<
+  React.ElementRef<typeof SheetPrimitive.Description>,
+  React.ComponentPropsWithoutRef<typeof SheetPrimitive.Description>
+>(({ className, ...props }, ref) => (
+  <SheetPrimitive.Description
+    ref={ref}
+    className={cn("text-sm text-muted-foreground", className)}
+    {...props}
+  />
+));
+SheetDescription.displayName = SheetPrimitive.Description.displayName;
+
+export {
+  Sheet,
+  SheetPortal,
+  SheetOverlay,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+};

apps/gui/src/components/ui/sidebar.tsx

@@ -0,0 +1,702 @@
+"use client";
+
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+import { PanelLeftIcon } from "lucide-react";
+import { Slot } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+import { useIsMobile } from "@/hooks/use-mobile";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Separator } from "@/components/ui/separator";
+import {
+  Sheet,
+  SheetContent,
+  SheetDescription,
+  SheetHeader,
+  SheetTitle,
+} from "@/components/ui/sheet";
+import { Skeleton } from "@/components/ui/skeleton";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+
+const SIDEBAR_COOKIE_NAME = "sidebar_state";
+const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7;
+const SIDEBAR_WIDTH = "16rem";
+const SIDEBAR_WIDTH_MOBILE = "18rem";
+const SIDEBAR_WIDTH_ICON = "3rem";
+const SIDEBAR_KEYBOARD_SHORTCUT = "b";
+
+type SidebarContextProps = {
+  state: "expanded" | "collapsed";
+  open: boolean;
+  setOpen: (open: boolean) => void;
+  openMobile: boolean;
+  setOpenMobile: (open: boolean) => void;
+  isMobile: boolean;
+  toggleSidebar: () => void;
+};
+
+const SidebarContext = React.createContext<SidebarContextProps | null>(null);
+
+function useSidebar() {
+  const context = React.useContext(SidebarContext);
+  if (!context) {
+    throw new Error("useSidebar must be used within a SidebarProvider.");
+  }
+
+  return context;
+}
+
+function SidebarProvider({
+  defaultOpen = true,
+  open: openProp,
+  onOpenChange: setOpenProp,
+  className,
+  style,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  defaultOpen?: boolean;
+  open?: boolean;
+  onOpenChange?: (open: boolean) => void;
+}) {
+  const isMobile = useIsMobile();
+  const [openMobile, setOpenMobile] = React.useState(false);
+
+  // This is the internal state of the sidebar.
+  // We use openProp and setOpenProp for control from outside the component.
+  const [_open, _setOpen] = React.useState(defaultOpen);
+  const open = openProp ?? _open;
+  const setOpen = React.useCallback(
+    (value: boolean | ((value: boolean) => boolean)) => {
+      const openState = typeof value === "function" ? value(open) : value;
+      if (setOpenProp) {
+        setOpenProp(openState);
+      } else {
+        _setOpen(openState);
+      }
+
+      // This sets the cookie to keep the sidebar state.
+      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`;
+    },
+    [setOpenProp, open],
+  );
+
+  // Helper to toggle the sidebar.
+  const toggleSidebar = React.useCallback(() => {
+    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open);
+  }, [isMobile, setOpen, setOpenMobile]);
+
+  // Adds a keyboard shortcut to toggle the sidebar.
+  React.useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (
+        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
+        (event.metaKey || event.ctrlKey)
+      ) {
+        event.preventDefault();
+        toggleSidebar();
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [toggleSidebar]);
+
+  // We add a state so that we can do data-state="expanded" or "collapsed".
+  // This makes it easier to style the sidebar with Tailwind classes.
+  const state = open ? "expanded" : "collapsed";
+
+  const contextValue = React.useMemo<SidebarContextProps>(
+    () => ({
+      state,
+      open,
+      setOpen,
+      isMobile,
+      openMobile,
+      setOpenMobile,
+      toggleSidebar,
+    }),
+    [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar],
+  );
+
+  return (
+    <SidebarContext.Provider value={contextValue}>
+      <div
+        data-slot="sidebar-wrapper"
+        style={
+          {
+            "--sidebar-width": SIDEBAR_WIDTH,
+            "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
+            ...style,
+          } as React.CSSProperties
+        }
+        className={cn(
+          "group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    </SidebarContext.Provider>
+  );
+}
+
+function Sidebar({
+  side = "left",
+  variant = "sidebar",
+  collapsible = "offcanvas",
+  className,
+  children,
+  dir,
+  ...props
+}: React.ComponentProps<"div"> & {
+  side?: "left" | "right";
+  variant?: "sidebar" | "floating" | "inset";
+  collapsible?: "offcanvas" | "icon" | "none";
+}) {
+  const { isMobile, state, openMobile, setOpenMobile } = useSidebar();
+
+  if (collapsible === "none") {
+    return (
+      <div
+        data-slot="sidebar"
+        className={cn(
+          "flex h-full w-(--sidebar-width) flex-col bg-card text-sidebar-foreground",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    );
+  }
+
+  if (isMobile) {
+    return (
+      <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
+        <SheetContent
+          dir={dir}
+          data-sidebar="sidebar"
+          data-slot="sidebar"
+          data-mobile="true"
+          className="w-(--sidebar-width) bg-card p-0 text-sidebar-foreground [&>button]:hidden"
+          style={
+            {
+              "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
+            } as React.CSSProperties
+          }
+          side={side}
+        >
+          <SheetHeader className="sr-only">
+            <SheetTitle>Sidebar</SheetTitle>
+            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
+          </SheetHeader>
+          <div className="flex h-full w-full flex-col">{children}</div>
+        </SheetContent>
+      </Sheet>
+    );
+  }
+
+  return (
+    <div
+      className="group peer hidden text-sidebar-foreground md:block"
+      data-state={state}
+      data-collapsible={state === "collapsed" ? collapsible : ""}
+      data-variant={variant}
+      data-side={side}
+      data-slot="sidebar"
+    >
+      {/* This is what handles the sidebar gap on desktop */}
+      <div
+        data-slot="sidebar-gap"
+        className={cn(
+          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
+          "group-data-[collapsible=offcanvas]:w-0",
+          "group-data-[side=right]:rotate-180",
+          variant === "floating" || variant === "inset"
+            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)",
+        )}
+      />
+      <div
+        data-slot="sidebar-container"
+        data-side={side}
+        className={cn(
+          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear data-[side=left]:left-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:right-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] md:flex",
+          // Adjust the padding for floating and inset variants.
+          variant === "floating" || variant === "inset"
+            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r-2 group-data-[side=right]:border-l-2",
+          className,
+        )}
+        {...props}
+      >
+        <div
+          data-sidebar="sidebar"
+          data-slot="sidebar-inner"
+          className="flex size-full flex-col bg-card group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:shadow-sm group-data-[variant=floating]:ring-1 group-data-[variant=floating]:ring-sidebar-border"
+        >
+          {children}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function SidebarTrigger({
+  className,
+  onClick,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { toggleSidebar } = useSidebar();
+
+  return (
+    <Button
+      data-sidebar="trigger"
+      data-slot="sidebar-trigger"
+      variant="ghost"
+      size="icon"
+      className={cn(className)}
+      onClick={(event) => {
+        onClick?.(event);
+        toggleSidebar();
+      }}
+      {...props}
+    >
+      <PanelLeftIcon />
+      <span className="sr-only">Toggle Sidebar</span>
+    </Button>
+  );
+}
+
+function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
+  const { toggleSidebar } = useSidebar();
+
+  return (
+    <button
+      data-sidebar="rail"
+      data-slot="sidebar-rail"
+      aria-label="Toggle Sidebar"
+      tabIndex={-1}
+      onClick={toggleSidebar}
+      title="Toggle Sidebar"
+      className={cn(
+        "absolute inset-y-0 z-20 hidden w-4 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] hover:after:bg-sidebar-border sm:flex ltr:-translate-x-1/2 rtl:-translate-x-1/2",
+        "in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize",
+        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
+        "group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full hover:group-data-[collapsible=offcanvas]:bg-sidebar",
+        "[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
+        "[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
+  return (
+    <main
+      data-slot="sidebar-inset"
+      className={cn(
+        "relative flex w-full flex-1 flex-col bg-background md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow-sm md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof Input>) {
+  return (
+    <Input
+      data-slot="sidebar-input"
+      data-sidebar="input"
+      className={cn("h-8 w-full bg-background shadow-none", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-header"
+      data-sidebar="header"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-footer"
+      data-sidebar="footer"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="sidebar-separator"
+      data-sidebar="separator"
+      className={cn("mx-2 w-auto bg-sidebar-border", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-content"
+      data-sidebar="content"
+      className={cn(
+        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group"
+      data-sidebar="group"
+      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupLabel({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "div";
+
+  return (
+    <Comp
+      data-slot="sidebar-group-label"
+      data-sidebar="group-label"
+      className={cn(
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium text-sidebar-foreground/70 ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupAction({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "button";
+
+  return (
+    <Comp
+      data-slot="sidebar-group-action"
+      data-sidebar="group-action"
+      className={cn(
+        "absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupContent({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group-content"
+      data-sidebar="group-content"
+      className={cn("w-full text-sm", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu"
+      data-sidebar="menu"
+      className={cn("flex w-full min-w-0 flex-col gap-0", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-item"
+      data-sidebar="menu-item"
+      className={cn("group/menu-item relative", className)}
+      {...props}
+    />
+  );
+}
+
+const sidebarMenuButtonVariants = cva(
+  "peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm ring-sidebar-ring outline-hidden transition-[width,height,padding] group-has-data-[sidebar=menu-action]/menu-item:pr-8 group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-open:hover:bg-accent data-open:hover:text-accent-foreground data-active:bg-primary data-active:font-medium data-active:text-primary-foreground [&_svg]:size-4 [&_svg]:shrink-0 [&>span:last-child]:truncate",
+  {
+    variants: {
+      variant: {
+        default: "hover:bg-accent hover:text-accent-foreground",
+        outline:
+          "bg-background shadow-[0_0_0_1px_var(--sidebar-border)] hover:bg-accent hover:text-accent-foreground hover:shadow-[0_0_0_1px_var(--sidebar-accent)]",
+      },
+      size: {
+        default: "h-8 text-sm",
+        sm: "h-7 text-xs",
+        lg: "h-12 text-sm group-data-[collapsible=icon]:p-0!",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+function SidebarMenuButton({
+  asChild = false,
+  isActive = false,
+  variant = "default",
+  size = "default",
+  tooltip,
+  className,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean;
+  isActive?: boolean;
+  tooltip?: string | React.ComponentProps<typeof TooltipContent>;
+} & VariantProps<typeof sidebarMenuButtonVariants>) {
+  const Comp = asChild ? Slot.Root : "button";
+  const { isMobile, state } = useSidebar();
+
+  const button = (
+    <Comp
+      data-slot="sidebar-menu-button"
+      data-sidebar="menu-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
+      {...props}
+    />
+  );
+
+  if (!tooltip) {
+    return button;
+  }
+
+  if (typeof tooltip === "string") {
+    tooltip = {
+      children: tooltip,
+    };
+  }
+
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>{button}</TooltipTrigger>
+      <TooltipContent
+        side="right"
+        align="center"
+        hidden={state !== "collapsed" || isMobile}
+        {...tooltip}
+      />
+    </Tooltip>
+  );
+}
+
+function SidebarMenuAction({
+  className,
+  asChild = false,
+  showOnHover = false,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean;
+  showOnHover?: boolean;
+}) {
+  const Comp = asChild ? Slot.Root : "button";
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-action"
+      data-sidebar="menu-action"
+      className={cn(
+        "absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        showOnHover &&
+          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground aria-expanded:opacity-100 md:opacity-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuBadge({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-menu-badge"
+      data-sidebar="menu-badge"
+      className={cn(
+        "pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded-md px-1 text-xs font-medium text-sidebar-foreground tabular-nums select-none group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSkeleton({
+  className,
+  showIcon = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showIcon?: boolean;
+}) {
+  // Random width between 50 to 90%.
+  const [width] = React.useState(() => {
+    return `${Math.floor(Math.random() * 40) + 50}%`;
+  });
+
+  return (
+    <div
+      data-slot="sidebar-menu-skeleton"
+      data-sidebar="menu-skeleton"
+      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
+      {...props}
+    >
+      {showIcon && (
+        <Skeleton
+          className="size-4 rounded-md"
+          data-sidebar="menu-skeleton-icon"
+        />
+      )}
+      <Skeleton
+        className="h-4 max-w-(--skeleton-width) flex-1"
+        data-sidebar="menu-skeleton-text"
+        style={
+          {
+            "--skeleton-width": width,
+          } as React.CSSProperties
+        }
+      />
+    </div>
+  );
+}
+
+function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu-sub"
+      data-sidebar="menu-sub"
+      className={cn(
+        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5 group-data-[collapsible=icon]:hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSubItem({
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-sub-item"
+      data-sidebar="menu-sub-item"
+      className={cn("group/menu-sub-item relative", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSubButton({
+  asChild = false,
+  size = "md",
+  isActive = false,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean;
+  size?: "sm" | "md";
+  isActive?: boolean;
+}) {
+  const Comp = asChild ? Slot.Root : "a";
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-sub-button"
+      data-sidebar="menu-sub-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(
+        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground ring-sidebar-ring outline-hidden group-data-[collapsible=icon]:hidden hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[size=md]:text-sm data-[size=sm]:text-xs data-active:bg-primary data-active:text-primary-foreground [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupAction,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInput,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuAction,
+  SidebarMenuBadge,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarMenuSkeleton,
+  SidebarMenuSub,
+  SidebarMenuSubButton,
+  SidebarMenuSubItem,
+  SidebarProvider,
+  SidebarRail,
+  SidebarSeparator,
+  SidebarTrigger,
+  useSidebar,
+};

apps/gui/src/components/ui/skeleton.tsx

@@ -0,0 +1,16 @@
+import { cn } from "@/lib/utils";
+
+function Skeleton({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      data-slot="skeleton"
+      className={cn("animate-pulse rounded-md bg-muted/60", className)}
+      {...props}
+    />
+  );
+}
+
+export { Skeleton };

apps/gui/src/components/ui/spinner.tsx

@@ -0,0 +1,17 @@
+import { Loader2Icon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
+  return (
+    <Loader2Icon
+      data-slot="spinner"
+      role="status"
+      aria-label="Loading"
+      className={cn("size-4 animate-spin", className)}
+      {...props}
+    />
+  );
+}
+
+export { Spinner };

apps/gui/src/components/ui/table.tsx

@@ -0,0 +1,116 @@
+"use client";
+
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Table({ className, ...props }: React.ComponentProps<"table">) {
+  return (
+    <div
+      data-slot="table-container"
+      className="relative w-full overflow-x-auto rounded border-2 shadow-md"
+    >
+      <table
+        data-slot="table"
+        className={cn("w-full caption-bottom text-sm", className)}
+        {...props}
+      />
+    </div>
+  );
+}
+
+function TableHeader({ className, ...props }: React.ComponentProps<"thead">) {
+  return (
+    <thead
+      data-slot="table-header"
+      className={cn("[&_tr]:border-b-2", className)}
+      {...props}
+    />
+  );
+}
+
+function TableBody({ className, ...props }: React.ComponentProps<"tbody">) {
+  return (
+    <tbody
+      data-slot="table-body"
+      className={cn("[&_tr:last-child]:border-0", className)}
+      {...props}
+    />
+  );
+}
+
+function TableFooter({ className, ...props }: React.ComponentProps<"tfoot">) {
+  return (
+    <tfoot
+      data-slot="table-footer"
+      className={cn(
+        "border-t-2 bg-muted/50 font-medium [&>tr]:last:border-b-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableRow({ className, ...props }: React.ComponentProps<"tr">) {
+  return (
+    <tr
+      data-slot="table-row"
+      className={cn(
+        "border-b-2 transition-colors hover:bg-accent has-aria-expanded:bg-accent data-[state=selected]:bg-accent",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableHead({ className, ...props }: React.ComponentProps<"th">) {
+  return (
+    <th
+      data-slot="table-head"
+      className={cn(
+        "h-10 bg-muted px-2 text-left align-middle font-head font-medium whitespace-nowrap text-foreground [&:has([role=checkbox])]:pr-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCell({ className, ...props }: React.ComponentProps<"td">) {
+  return (
+    <td
+      data-slot="table-cell"
+      className={cn(
+        "p-2 align-middle whitespace-nowrap [&:has([role=checkbox])]:pr-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCaption({
+  className,
+  ...props
+}: React.ComponentProps<"caption">) {
+  return (
+    <caption
+      data-slot="table-caption"
+      className={cn("mt-4 text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Table,
+  TableHeader,
+  TableBody,
+  TableFooter,
+  TableHead,
+  TableRow,
+  TableCell,
+  TableCaption,
+};

apps/gui/src/components/ui/tabs.tsx

@@ -0,0 +1,90 @@
+"use client";
+
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+import { Tabs as TabsPrimitive } from "radix-ui";
+
+import { cn } from "@/lib/utils";
+
+function Tabs({
+  className,
+  orientation = "horizontal",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Root>) {
+  return (
+    <TabsPrimitive.Root
+      data-slot="tabs"
+      data-orientation={orientation}
+      className={cn(
+        "group/tabs flex gap-2 data-horizontal:flex-col",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+const tabsListVariants = cva(
+  "group/tabs-list inline-flex w-fit items-center justify-center rounded p-1 text-muted-foreground group-data-horizontal/tabs:h-11 group-data-vertical/tabs:h-fit group-data-vertical/tabs:flex-col data-[variant=line]:rounded-none",
+  {
+    variants: {
+      variant: {
+        default: "border-2 bg-card shadow-sm",
+        line: "gap-1 bg-transparent",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+function TabsList({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.List> &
+  VariantProps<typeof tabsListVariants>) {
+  return (
+    <TabsPrimitive.List
+      data-slot="tabs-list"
+      data-variant={variant}
+      className={cn(tabsListVariants({ variant }), className)}
+      {...props}
+    />
+  );
+}
+
+function TabsTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Trigger>) {
+  return (
+    <TabsPrimitive.Trigger
+      data-slot="tabs-trigger"
+      className={cn(
+        "relative inline-flex h-[calc(100%-1px)] flex-1 cursor-pointer items-center justify-center gap-1.5 rounded border-2 border-transparent px-4 py-2 text-sm font-head font-medium whitespace-nowrap text-foreground/60 transition-all group-data-vertical/tabs:w-full group-data-vertical/tabs:justify-start hover:text-foreground focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:pointer-events-none disabled:opacity-50 has-data-[icon=inline-end]:pr-1 has-data-[icon=inline-start]:pl-1 group-data-[variant=default]/tabs-list:data-active:border-border group-data-[variant=default]/tabs-list:data-active:shadow-sm group-data-[variant=line]/tabs-list:data-active:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-active:bg-transparent",
+        "data-active:bg-primary data-active:text-primary-foreground group-data-[variant=line]/tabs-list:data-active:text-foreground",
+        "after:absolute after:bg-foreground after:opacity-0 after:transition-opacity group-data-horizontal/tabs:after:inset-x-0 group-data-horizontal/tabs:after:bottom-[-5px] group-data-horizontal/tabs:after:h-1 group-data-vertical/tabs:after:inset-y-0 group-data-vertical/tabs:after:-right-1 group-data-vertical/tabs:after:w-1 group-data-[variant=line]/tabs-list:data-active:after:opacity-100",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TabsContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Content>) {
+  return (
+    <TabsPrimitive.Content
+      data-slot="tabs-content"
+      className={cn("flex-1 text-sm outline-none", className)}
+      {...props}
+    />
+  );
+}
+
+export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants };

apps/gui/src/components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      data-slot="textarea"
+      className={cn(
+        "flex field-sizing-content min-h-16 w-full rounded border-2 bg-input px-3 py-2 text-sm shadow-sm transition-colors outline-none placeholder:text-muted-foreground focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Textarea };

apps/gui/src/components/ui/tooltip.tsx

@@ -0,0 +1,30 @@
+"use client";
+
+import * as React from "react";
+import * as TooltipPrimitive from "@radix-ui/react-tooltip";
+
+import { cn } from "@/lib/utils";
+
+const TooltipProvider = TooltipPrimitive.Provider;
+
+const Tooltip = TooltipPrimitive.Root;
+
+const TooltipTrigger = TooltipPrimitive.Trigger;
+
+const TooltipContent = React.forwardRef<
+  React.ElementRef<typeof TooltipPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <TooltipPrimitive.Content
+    ref={ref}
+    sideOffset={sideOffset}
+    className={cn(
+      "z-50 overflow-hidden rounded-md border bg-popover px-3 py-1.5 text-sm text-popover-foreground shadow-md animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-tooltip-content-transform-origin]",
+      className,
+    )}
+    {...props}
+  />
+));
+TooltipContent.displayName = TooltipPrimitive.Content.displayName;
+
+export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider };

apps/gui/src/hooks/use-mobile.tsx

@@ -0,0 +1,21 @@
+import * as React from "react";
+
+const MOBILE_BREAKPOINT = 768;
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(
+    undefined,
+  );
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`);
+    const onChange = () => {
+      setIsMobile(mql.matches);
+    };
+    mql.addEventListener("change", onChange);
+    setIsMobile(mql.matches);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return !!isMobile;
+}

apps/gui/src/lib/simulation-types.ts

@@ -0,0 +1,71 @@
+export interface IntentInfo {
+  type: string;
+  description: string;
+  selfDescription?: string;
+  modifiers: string[];
+  targetIds: string[];
+  isValid?: boolean;
+  reason?: string;
+  minutesToAdvance?: number;
+}
+
+export interface LogEntry {
+  turn: number;
+  entityId: string;
+  entityName: string;
+  narrativeProse: string;
+  intents: IntentInfo[];
+  timestamp: string;
+  rawPrompt?: {
+    systemPrompt: string;
+    userContext: string;
+  };
+  usage?: {
+    inputTokens: number;
+    outputTokens: number;
+    totalTokens: number;
+    modelName?: string;
+    providerInstanceName?: string;
+    maxContext?: number;
+  };
+  decoderPrompt?: {
+    systemPrompt: string;
+    userContext: string;
+  };
+  decoderUsage?: {
+    inputTokens: number;
+    outputTokens: number;
+    totalTokens: number;
+    modelName?: string;
+    providerInstanceName?: string;
+    maxContext?: number;
+  };
+}
+
+export interface EntityInfo {
+  id: string;
+  name: string;
+  isPlayer: boolean;
+  isAgent: boolean;
+}
+
+export interface WaitingContext {
+  entityId: string;
+  name: string;
+  systemPrompt: string;
+  userContext: string;
+}
+
+export interface SimSnapshot {
+  id: string;
+  status: "running" | "waiting_player" | "done" | "error";
+  turn: number;
+  maxTurns: number;
+  scenarioName: string;
+  scenarioDescription: string;
+  entities: EntityInfo[];
+  log: LogEntry[];
+  entityIndex: number;
+  waitingEntity?: WaitingContext;
+  error?: string;
+}

apps/gui/src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { type ClassValue, clsx } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}

apps/gui/tsconfig.json

@@ -0,0 +1,33 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts"
+  ],
+  "exclude": ["node_modules"]
+}

content/demo/scenarios/talking-room.json

@@ -11,12 +11,6 @@
         "visibility": "PRIVATE",
         "allowedEntities": []
       },
-      {
-        "name": "observation_status",
-        "value": "Active monitoring. Audio and visual feeds online.",
-        "visibility": "PRIVATE",
-        "allowedEntities": []
-      },
       {
         "name": "ambient_sound",
         "value": "A low, barely audible electrical hum.",
@@ -54,6 +48,11 @@
           "visibility": "PRIVATE",
           "allowedEntities": ["7c9b83b3-8cfb-4e89-8d77-626a5757d591"]
         },
+        {
+          "name": "gender",
+          "value": "male",
+          "visibility": "PUBLIC"
+        },
         {
           "name": "appearance",
           "value": "A tall human with short dark hair and alert eyes, standing near the center of the room.",
@@ -96,6 +95,11 @@
           "visibility": "PRIVATE",
           "allowedEntities": ["bf3f29d2-cf11-4b11-9a99-b13c126d400e"]
         },
+        {
+          "name": "gender",
+          "value": "male",
+          "visibility": "PUBLIC"
+        },
         {
           "name": "appearance",
           "value": "A medium-build human with long blonde hair tied back, sitting with their back pressed against the white wall.",

eslint.config.mjs

@@ -5,7 +5,12 @@ import tseslint from "typescript-eslint";
 
 export default [
   {
-    ignores: ["**/dist/**", "**/node_modules/**", "**/.astro/**"],
+    ignores: [
+      "**/dist/**",
+      "**/node_modules/**",
+      "**/.astro/**",
+      "**/.next/**",
+    ],
   },
 
   js.configs.recommended,
@@ -19,5 +24,12 @@ export default [
     },
   },
 
+  {
+    files: ["**/*.tsx"],
+    languageOptions: {
+      globals: { ...globals.browser, ...globals.node },
+    },
+  },
+
   eslintConfigPrettier,
 ];

package.json

@@ -7,9 +7,10 @@
     "build": "tsc -b",
     "build:web": "pnpm --filter landing build",
     "build:docs": "pnpm --filter docs build",
-    "build:all": "pnpm build && pnpm build:web && pnpm build:docs",
+    "build:gui": "pnpm --filter @omnia/gui build",
     "dev:web": "pnpm --filter landing dev",
     "dev:docs": "pnpm --filter docs dev",
+    "dev:gui": "pnpm --filter @omnia/gui dev",
     "clean": "git clean -xfd",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
@@ -18,16 +19,15 @@
     "watch": "tsc -b --watch",
     "test": "vitest run --project unit",
     "test:watch": "vitest --project unit",
-    "test:evals": "vitest run --project evals",
-    "play": "node apps/cli/dist/index.js"
+    "test:evals": "vitest run --project evals"
   },
   "keywords": [],
-  "author": "",
-  "license": "ISC",
+  "author": "sortedcord",
+  "license": "MIT",
   "devEngines": {
     "packageManager": {
       "name": "pnpm",
-      "version": "^11.9.0",
+      "version": "11.13.0",
       "onFail": "download"
     }
   },
@@ -40,6 +40,7 @@
     "eslint-config-prettier": "^10.1.8",
     "globals": "^17.7.0",
     "prettier": "^3.9.4",
+    "shadcn": "^4.13.0",
     "typescript": "^6.0.3",
     "typescript-eslint": "^8.62.1",
     "vitest": "^4.1.9",
@@ -47,6 +48,7 @@
   },
   "dependencies": {
     "@langchain/google-genai": "^2.2.0",
+    "@langchain/openrouter": "^0.4.3",
     "@types/node": "^20.19.43",
     "dotenv": "^17.4.2"
   }

packages/actor/src/actor-prompt-builder.ts

@@ -4,11 +4,14 @@ import {
   WorldState,
   naturalizeTime,
   serializeSubjectiveWorldState,
+  resolveAlias,
 } from "@omnia/core";
 import {
   BufferEntry,
   BufferRepository,
   serializeSubjectiveBufferEntry,
+  LedgerEntry,
+  LedgerRepository,
 } from "@omnia/memory";
 
 /**
@@ -37,12 +40,17 @@ export class ActorPromptBuilder {
   /**
    * @param bufferRepo  Used to fetch the actor's recent memory. Optional —
    *                    if absent, the memory section is omitted.
+   * @param ledgerRepo  Used to fetch long-term memories. Optional.
    * @param memoryLimit Maximum number of recent buffer entries to inject.
    *                    Defaults to 20.
+   * @param ledgerLimit Maximum number of long-term memories to retrieve.
+   *                    Defaults to 5.
    */
   constructor(
     private bufferRepo?: BufferRepository,
+    private ledgerRepo?: LedgerRepository,
     private memoryLimit = 20,
+    private ledgerLimit = 5,
   ) {}
 
   /**
@@ -59,30 +67,31 @@ export class ActorPromptBuilder {
 
   private buildSystemPrompt(): string {
     return `
-You are an actor agent embodying a single character in a narrative simulation. You ARE this character — act immersively, naturally, and in-character at all times. Do not break character, do not reference being an AI or a system, and do not narrate from outside the character's perspective.
+You are an actor agent embodying a single character in a narrative simulation. You ARE this character: act immersively, naturally, and in-character at all times. Do not break character, do not reference being an AI or a system, and do not narrate from outside the character's perspective.
 
 Your output is a short block of narrative prose describing what your character does, says, or thinks next. You may:
-- Speak aloud → this becomes a "dialogue" intent. Other entities can hear it.
-- Perform a physical or logical action → this becomes an "action" intent. It is subject to the world's physics and will be validated by the World Architect.
-- Think internally / reflect / feel → this becomes a "monologue" intent. NO ONE else perceives it. It bypasses all validation and is written straight to your private memory. Use this for inner thoughts, doubts, plans, and feelings that you would not voice aloud.
+- Speak aloud → Other entities can hear it if they are present nearby. (Or nobody will hear it if you are alone)
+- Perform a physical action → It is subject to the world's physics and logic. Do not describe the outcome of your action.
+- Think internally / reflect / feel → this is a "monologue". NO ONE else perceives it. This is what you think internally.
 
 Guidelines:
-- Always write in the first person (e.g., "I do this", "I say", "I think").
-- Only describe your character's own actions, spoken words, and internal reactions. Do NOT narrate or describe the environment, the room, your surroundings, or other characters' actions, as these are managed by the simulation engine.
-- Stay strictly within what your character knows. If an attribute, entity, or fact is not present in your context below, your character does not know it — do not invent it or act on it.
-- Refer to other entities by the subjective names/aliases given in your context, never by raw system IDs.
-- Keep your prose vivid but concise. A single response may contain more than one intent (e.g., you may think, then speak, then act) — write them in natural narrative order.
+- Always write in the first person
+- Only describe your character's own actions, spoken words, and internal reactions. Do NOT narrate or describe the environment or your surroundings, or other characters' actions.
+- Refer to other entities by the subjective names/aliases that you refer to them as.
+- Keep your prose vivid but concise. Write it in natural narrative order.
 - Not every response requires an outward action. It is perfectly valid to only think (a monologue) and do nothing perceivable.
-- Never speak or act on another entity's behalf — you only control your own character.
+- Never speak or act on another entity's behalf. You only control your own character.
+- Stay strictly within what your character knows. Do not invent knowledge that doesn't exist or act on it.
+- You are limited by just your memory. If your memory is limited, then that's all you can remember. If you do make stuff up then that's lying. Which is allowed, but remember that you're lying.
 ".
 `.trim();
   }
 
   private buildUserContext(worldState: WorldState, entity: Entity): string {
     const sections: string[] = [];
+    const now = worldState.clock.get();
 
     // --- Subjective present time ---
-    const now = worldState.clock.get();
     sections.push(
       `=== CURRENT MOMENT ===\nIt is ${now.toISOString()} right now.`,
     );
@@ -92,30 +101,45 @@ Guidelines:
       `=== THE WORLD AS YOU PERCEIVE IT ===\n${serializeSubjectiveWorldState(worldState, entity.id)}`,
     );
 
+    // Fetch recent buffer entries once
+    let recentEntries: BufferEntry[] = [];
+    if (this.bufferRepo) {
+      try {
+        recentEntries = this.bufferRepo.listForOwner(entity.id);
+      } catch {
+        // bufferRepo may not be available
+      }
+    }
+
     // --- Recent memory ---
-    const memorySection = this.buildMemorySection(
-      entity,
-      worldState.clock.get(),
-    );
+    const memorySection = this.buildMemorySection(entity, recentEntries, now);
     if (memorySection) {
       sections.push(memorySection);
     }
 
+    // --- Recalled Long-Term memory ---
+    const ledgerSection = this.buildLedgerSection(
+      worldState,
+      entity,
+      recentEntries,
+      now,
+    );
+    if (ledgerSection) {
+      sections.push(ledgerSection);
+    }
+
     return sections.join("\n\n");
   }
 
-  private buildMemorySection(entity: Entity, now: Date): string | null {
+  private buildMemorySection(
+    entity: Entity,
+    entries: BufferEntry[],
+    now: Date,
+  ): string | null {
     if (!this.bufferRepo) return null;
 
-    let entries: BufferEntry[];
-    try {
-      entries = this.bufferRepo.listForOwner(entity.id);
-    } catch {
-      return null;
-    }
-
     if (entries.length === 0) {
-      return `=== YOUR RECENT MEMORY ===\n(You have no memories yet.)`;
+      return `=== RECENT EVENTS ===\n(No recent events recorded.)`;
     }
 
     const recent = entries.slice(-this.memoryLimit);
@@ -135,6 +159,110 @@ Guidelines:
       groupedLines.push(`  - ${serialized}`);
     }
 
-    return `=== YOUR RECENT MEMORY ===\n${groupedLines.join("\n")}`;
+    return `=== RECENT EVENTS ===\n${groupedLines.join("\n")}`;
+  }
+
+  private buildLedgerSection(
+    worldState: WorldState,
+    entity: Entity,
+    recentBuffer: BufferEntry[],
+    now: Date,
+  ): string | null {
+    if (!this.ledgerRepo) return null;
+
+    // 1. Get co-located entities (in the same location as entity)
+    const coLocatedEntityIds: string[] = [];
+    if (entity.locationId) {
+      for (const e of worldState.entities.values()) {
+        if (e.id !== entity.id && e.locationId === entity.locationId) {
+          coLocatedEntityIds.push(e.id);
+        }
+      }
+    }
+
+    // 2. Compute Active Focus entities based on recent interactions (last 10 entries)
+    const activeFocus = new Set<string>();
+    const maxFocus = 3;
+
+    // We scan the recent buffer entries to see who we recently talked to or who talked to us
+    for (let i = recentBuffer.length - 1; i >= 0; i--) {
+      const entry = recentBuffer[i];
+      const intent = entry.intent;
+
+      if (
+        intent.actorId !== entity.id &&
+        coLocatedEntityIds.includes(intent.actorId)
+      ) {
+        activeFocus.add(intent.actorId);
+      }
+      for (const targetId of intent.targetIds) {
+        if (targetId !== entity.id && coLocatedEntityIds.includes(targetId)) {
+          activeFocus.add(targetId);
+        }
+      }
+      if (activeFocus.size >= maxFocus) break;
+    }
+
+    // If co-located entities is small, auto-focus all of them
+    if (activeFocus.size < maxFocus && coLocatedEntityIds.length <= maxFocus) {
+      for (const id of coLocatedEntityIds) {
+        if (id !== entity.id) {
+          activeFocus.add(id);
+        }
+      }
+    }
+
+    const activeFocusIds = Array.from(activeFocus);
+
+    // 3. Retrieve memories using Active Focus
+    let recalled: LedgerEntry[];
+    try {
+      recalled = this.ledgerRepo.retrieve(
+        entity.id,
+        entity.locationId,
+        activeFocusIds,
+        undefined, // no query embedding for now (Recency + Importance ranking)
+        now,
+        this.ledgerLimit,
+        { includeAssociativeNeighbors: true },
+      );
+    } catch {
+      return null;
+    }
+
+    if (recalled.length === 0) return null;
+
+    // 4. Format them identical to the recent memory format
+    const groupedLines: string[] = [];
+    let currentGroup: string | null = null;
+
+    for (const entry of recalled) {
+      const when = naturalizeTime(now, new Date(entry.timestamp));
+
+      let content = entry.content;
+      // Resolve system IDs to subjective aliases in the content
+      for (const targetId of entry.involvedEntityIds) {
+        const alias = resolveAlias(entity, targetId);
+        content = content.replace(new RegExp(targetId, "g"), alias);
+      }
+      if (entry.locationId) {
+        content += ` (at ${entry.locationId})`;
+      }
+
+      if (when !== currentGroup) {
+        currentGroup = when;
+        const header = when.charAt(0).toUpperCase() + when.slice(1);
+        groupedLines.push(header);
+      }
+
+      groupedLines.push(`  - ${content}`);
+      if (entry.quotes && entry.quotes.length > 0) {
+        for (const quote of entry.quotes) {
+          groupedLines.push(`    Quote: "${quote}"`);
+        }
+      }
+    }
+
+    return `=== YOUR MEMORIES ===\n${groupedLines.join("\n")}`;
   }
 }

packages/actor/src/actor.ts

@@ -1,22 +1,22 @@
 import { Entity, WorldState } from "@omnia/core";
 import { ILLMProvider } from "@omnia/llm";
+import { BufferEntry, BufferRepository, LedgerRepository } from "@omnia/memory";
+import { Intent, IntentDecoder, IntentSequence } from "@omnia/intent";
 import {
-  BufferEntry,
-  BufferRepository,
-} from "@omnia/memory";
-import {
-  Intent,
-  IntentDecoder,
-  IntentSequence,
-} from "@omnia/intent";
-import { ActorPromptBuilder, ActorResponseSchema } from "./actor-prompt-builder.js";
+  ActorPromptBuilder,
+  ActorResponseSchema,
+} from "./actor-prompt-builder.js";
 
 /**
  * Interface to generate narrative prose for an actor.
  * Allows switching between LLM generators and human CLI inputs.
  */
 export interface IActorProseGenerator {
-  generate(entityId: string, systemPrompt: string, userContext: string): Promise<string>;
+  generate(
+    entityId: string,
+    systemPrompt: string,
+    userContext: string,
+  ): Promise<string>;
 }
 
 /**
@@ -25,7 +25,11 @@ export interface IActorProseGenerator {
 export class LLMActorProseGenerator implements IActorProseGenerator {
   constructor(private llmProvider: ILLMProvider) {}
 
-  async generate(entityId: string, systemPrompt: string, userContext: string): Promise<string> {
+  async generate(
+    entityId: string,
+    systemPrompt: string,
+    userContext: string,
+  ): Promise<string> {
     const response = await this.llmProvider.generateStructuredResponse({
       systemPrompt,
       userContext,
@@ -68,15 +72,34 @@ export class ActorAgent {
   private decoder: IntentDecoder;
   private generator: IActorProseGenerator;
 
+  private llmProvider: ILLMProvider;
+
   constructor(
-    private llmProvider: ILLMProvider,
+    llmProvider: ILLMProvider | { actor: ILLMProvider; decoder: ILLMProvider },
     bufferRepo?: BufferRepository,
+    ledgerRepo?: LedgerRepository,
     memoryLimit?: number,
     generator?: IActorProseGenerator,
   ) {
-    this.promptBuilder = new ActorPromptBuilder(bufferRepo, memoryLimit);
-    this.decoder = new IntentDecoder(llmProvider);
-    this.generator = generator ?? new LLMActorProseGenerator(llmProvider);
+    let actorProv: ILLMProvider;
+    let decoderProv: ILLMProvider;
+
+    if ("actor" in llmProvider && "decoder" in llmProvider) {
+      actorProv = llmProvider.actor;
+      decoderProv = llmProvider.decoder;
+    } else {
+      actorProv = llmProvider;
+      decoderProv = llmProvider;
+    }
+
+    this.promptBuilder = new ActorPromptBuilder(
+      bufferRepo,
+      ledgerRepo,
+      memoryLimit,
+    );
+    this.decoder = new IntentDecoder(decoderProv);
+    this.generator = generator ?? new LLMActorProseGenerator(actorProv);
+    this.llmProvider = actorProv;
   }
 
   /**
@@ -86,10 +109,13 @@ export class ActorAgent {
    * 2. Asks the generator (LLM or human) for narrative prose.
    * 3. Decodes the prose into a structured IntentSequence.
    */
-  async act(
-    worldState: WorldState,
-    entity: Entity,
-  ): Promise<ActorTurnResult> {
+  async act(worldState: WorldState, entity: Entity): Promise<ActorTurnResult> {
+    if (!entity.isAgent) {
+      throw new Error(
+        `Entity "${entity.id}" is not an agent and cannot use the actor interface.`,
+      );
+    }
+
     const { systemPrompt, userContext } = this.promptBuilder.build(
       worldState,
       entity,

packages/actor/tests/actor-prompt-builder.test.ts

@@ -0,0 +1,104 @@
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+import Database from "better-sqlite3";
+import { WorldState, Entity } from "@omnia/core";
+import { BufferRepository, LedgerRepository } from "@omnia/memory";
+import { ActorPromptBuilder } from "../src/actor-prompt-builder";
+
+describe("ActorPromptBuilder with Long-Term Memory Integration", () => {
+  let db: Database.Database;
+  let bufferRepo: BufferRepository;
+  let ledgerRepo: LedgerRepository;
+
+  beforeEach(() => {
+    db = new Database(":memory:");
+
+    // Core database schemas for testing
+    db.exec(`
+      CREATE TABLE objects (
+        id TEXT PRIMARY KEY
+      );
+    `);
+
+    db.exec(`
+      INSERT INTO objects (id) VALUES ('alice'), ('bob'), ('charlie');
+    `);
+
+    bufferRepo = new BufferRepository(db);
+    ledgerRepo = new LedgerRepository(db);
+  });
+
+  afterEach(() => {
+    db.close();
+  });
+
+  it("should inject both recent memory and recalled long-term memory with subjective aliases resolved", () => {
+    const world = new WorldState(
+      "world-123",
+      new Date("2024-01-10T12:00:00.000Z"),
+    );
+
+    const alice = new Entity("alice", "tavern");
+    // Add subjective alias for bob
+    alice.aliases.set("bob", "Strider");
+    world.addEntity(alice);
+
+    const bob = new Entity("bob", "tavern");
+    world.addEntity(bob);
+
+    // 1. Populate recent buffer memory
+    bufferRepo.save({
+      id: "buf1",
+      ownerId: "alice",
+      timestamp: "2024-01-10T11:58:00.000Z", // 2 mins ago
+      locationId: "tavern",
+      intent: {
+        type: "dialogue",
+        actorId: "alice",
+        targetIds: ["bob"],
+        originalText: "Hello there",
+        description: "Alice greets Bob",
+      },
+    });
+
+    // 2. Populate ledger repository (long-term memory)
+    ledgerRepo.save({
+      id: "ledger1",
+      ownerId: "alice",
+      timestamp: "2024-01-08T12:00:00.000Z", // 2 days ago
+      locationId: "tavern",
+      involvedEntityIds: ["bob"],
+      content: "alice met bob at the tavern.",
+      quotes: ["I am a ranger."],
+      importance: 9,
+      embedding: [],
+    });
+
+    const builder = new ActorPromptBuilder(bufferRepo, ledgerRepo, 20, 5);
+    const { userContext } = builder.build(world, alice);
+
+    // Check recent memory exists
+    expect(userContext).toContain("=== RECENT EVENTS ===");
+    expect(userContext).toContain("Alice greets Bob");
+
+    // Check long-term memory exists
+    expect(userContext).toContain("=== YOUR MEMORIES ===");
+    // Bob should be resolved to Strider in the ledger content
+    expect(userContext).toContain("alice met Strider at the tavern.");
+    expect(userContext).toContain('Quote: "I am a ranger."');
+  });
+
+  it("should not explode if ledger contains no memories or is empty", () => {
+    const world = new WorldState(
+      "world-123",
+      new Date("2024-01-10T12:00:00.000Z"),
+    );
+    const alice = new Entity("alice", "tavern");
+    world.addEntity(alice);
+
+    const builder = new ActorPromptBuilder(bufferRepo, ledgerRepo, 20, 5);
+    const { userContext } = builder.build(world, alice);
+
+    expect(userContext).toContain("=== RECENT EVENTS ===");
+    expect(userContext).not.toContain("=== YOUR MEMORIES ===");
+  });
+});

packages/actor/tests/actor.test.ts

@@ -0,0 +1,19 @@
+import { describe, it, expect } from "vitest";
+import { WorldState, Entity } from "@omnia/core";
+import { ActorAgent } from "../src/actor.js";
+import { MockLLMProvider } from "@omnia/llm";
+
+describe("ActorAgent Unit Tests", () => {
+  it("should throw an error if trying to act with a non-agent entity", async () => {
+    const world = new WorldState("world-123");
+    const nonAgentEntity = new Entity("stone", null, false); // isAgent = false
+    world.addEntity(nonAgentEntity);
+
+    const mockLlm = new MockLLMProvider([]);
+    const actor = new ActorAgent(mockLlm);
+
+    await expect(actor.act(world, nonAgentEntity)).rejects.toThrow(
+      'Entity "stone" is not an agent and cannot use the actor interface.',
+    );
+  });
+});

packages/architect/src/architect.ts

@@ -12,9 +12,24 @@ export class Architect {
   private validator: LLMValidator;
   private timeDeltaGenerator: TimeDeltaGenerator;
 
-  constructor(llmProvider: ILLMProvider, private repo?: SQLiteRepository) {
-    this.validator = new LLMValidator(llmProvider);
-    this.timeDeltaGenerator = new TimeDeltaGenerator(llmProvider);
+  constructor(
+    llmProvider:
+      ILLMProvider | { validator: ILLMProvider; timedelta: ILLMProvider },
+    private repo?: SQLiteRepository,
+  ) {
+    let valProv: ILLMProvider;
+    let timeProv: ILLMProvider;
+
+    if ("validator" in llmProvider && "timedelta" in llmProvider) {
+      valProv = llmProvider.validator;
+      timeProv = llmProvider.timedelta;
+    } else {
+      valProv = llmProvider;
+      timeProv = llmProvider;
+    }
+
+    this.validator = new LLMValidator(valProv);
+    this.timeDeltaGenerator = new TimeDeltaGenerator(timeProv);
   }
 
   /**
@@ -46,8 +61,12 @@ export class Architect {
     if (intent.type === "monologue") {
       return {
         isValid: true,
-        reason: "Monologue intent bypasses validation (internal thought, not perceivable).",
-        timeDelta: { minutesToAdvance: 0, explanation: "Internal thought — no time elapsed." },
+        reason:
+          "Monologue intent bypasses validation (internal thought, not perceivable).",
+        timeDelta: {
+          minutesToAdvance: 0,
+          explanation: "Internal thought — no time elapsed.",
+        },
       };
     }
 

packages/architect/src/delta.ts

@@ -18,6 +18,21 @@ export class TimeDeltaGenerator implements IDeltaGenerator<TimeDelta> {
   constructor(private llmProvider: ILLMProvider) {}
 
   async generate(worldState: WorldState, intent: Intent): Promise<TimeDelta> {
+    // We can do this right now because we haven't yet started the implementation of the Event Scheduler or a Tick Engine
+    // Once we do, please review this code.
+    if (intent.type === "dialogue") {
+      return {
+        minutesToAdvance: 1,
+        explanation: "Dialogue action; 1 minute granted for quick exchange.",
+      };
+    }
+    if (intent.type === "monologue") {
+      return {
+        minutesToAdvance: 0,
+        explanation: "Monologue action; no time advanced for internal thought.",
+      };
+    }
+
     const systemPrompt = `
 You are the Time Delta Generator for the World Architect.
 Your task is to judge how much time (in minutes) a proposed action would logically take to execute in the physical world.

packages/architect/src/index.ts

@@ -1,4 +1,3 @@
 export * from "./llm-validator.js";
 export * from "./architect.js";
 export * from "./delta.js";
-

packages/architect/src/llm-validator.ts

@@ -28,7 +28,8 @@ export class LLMValidator {
     if (intent.type === "monologue") {
       return {
         isValid: true,
-        reason: "Monologue intents are internal thoughts and bypass validation.",
+        reason:
+          "Monologue intents are internal thoughts and bypass validation.",
       };
     }
 

packages/architect/tests/architect.test.ts

@@ -1,6 +1,11 @@
 import { describe, test, expect } from "vitest";
 import Database from "better-sqlite3";
-import { WorldState, Entity, SQLiteRepository, AttributeVisibility } from "@omnia/core";
+import {
+  WorldState,
+  Entity,
+  SQLiteRepository,
+  AttributeVisibility,
+} from "@omnia/core";
 import { MockLLMProvider } from "@omnia/llm";
 import { Architect, AliasDeltaGenerator } from "@omnia/architect";
 import { Intent } from "@omnia/intent";
@@ -22,8 +27,10 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
       type: "action",
       originalText: "open the chest and read the scroll",
       description: "Open the chest and read the scroll",
+      selfDescription: "You open the chest and read the scroll.",
       actorId: "alice",
       targetIds: [],
+      modifiers: [],
     };
 
     const result = await architect.validateIntent(world, intent);
@@ -51,8 +58,10 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
       type: "action",
       originalText: "unlock the gate and escape",
       description: "Unlock the gate and escape",
+      selfDescription: "You unlock the gate and escape.",
       actorId: "bob",
       targetIds: [],
+      modifiers: [],
     };
 
     const result = await architect.validateIntent(world, intent);
@@ -72,8 +81,10 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
       type: "action",
       originalText: "haunt the mansion",
       description: "Haunt the mansion",
+      selfDescription: "You haunt the mansion.",
       actorId: "ghost",
       targetIds: [],
+      modifiers: [],
     };
 
     const result = await architect.validateIntent(world, intent);
@@ -90,7 +101,10 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
     const db = new Database(":memory:");
     const repo = new SQLiteRepository(db);
 
-    const world = new WorldState("world-xyz", new Date("2026-07-06T12:00:00.000Z"));
+    const world = new WorldState(
+      "world-xyz",
+      new Date("2026-07-06T12:00:00.000Z"),
+    );
     const alice = new Entity("alice");
     world.addEntity(alice);
 
@@ -100,8 +114,14 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
     // Setup mock LLM responses:
     // First call: validateIntent (ValidationResult)
     // Second call: TimeDeltaGenerator (TimeDelta)
-    const mockValidation = { isValid: true, reason: "Alice has the lockpick kit and skill." };
-    const mockTimeDelta = { minutesToAdvance: 20, explanation: "Picking a lock takes time." };
+    const mockValidation = {
+      isValid: true,
+      reason: "Alice has the lockpick kit and skill.",
+    };
+    const mockTimeDelta = {
+      minutesToAdvance: 20,
+      explanation: "Picking a lock takes time.",
+    };
     const llmProvider = new MockLLMProvider([mockValidation, mockTimeDelta]);
 
     const architect = new Architect(llmProvider, repo);
@@ -110,8 +130,10 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
       type: "action",
       originalText: "pick the lock of the wooden chest",
       description: "Pick the lock of the wooden chest",
+      selfDescription: "You pick the lock of the wooden chest.",
       actorId: "alice",
       targetIds: [],
+      modifiers: [],
     };
 
     const result = await architect.processIntent(world, intent);
@@ -123,7 +145,9 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
     expect(result.timeDelta!.minutesToAdvance).toBe(20);
 
     // Verify clock was advanced locally
-    const expectedTime = new Date(new Date("2026-07-06T12:00:00.000Z").getTime() + 20 * 60_000);
+    const expectedTime = new Date(
+      new Date("2026-07-06T12:00:00.000Z").getTime() + 20 * 60_000,
+    );
     expect(world.clock.get().toISOString()).toBe(expectedTime.toISOString());
 
     // Verify it was persisted to the database
@@ -143,7 +167,10 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
     world.addEntity(bob);
     repo.saveWorldState(world);
 
-    const mockValidation = { isValid: false, reason: "Bob is bound by chains." };
+    const mockValidation = {
+      isValid: false,
+      reason: "Bob is bound by chains.",
+    };
     const llmProvider = new MockLLMProvider([mockValidation]); // TimeDeltaGenerator shouldn't be called
 
     const architect = new Architect(llmProvider, repo);
@@ -152,8 +179,10 @@ describe("TimeDeltaGenerator & Architect.processIntent Unit Tests (Tier 1)", ()
       type: "action",
       originalText: "run away",
       description: "Run away",
+      selfDescription: "You run away.",
       actorId: "bob",
       targetIds: [],
+      modifiers: [],
     };
 
     const result = await architect.processIntent(world, intent);
@@ -178,8 +207,16 @@ describe("AliasDeltaGenerator Unit Tests (Tier 1)", () => {
     const world = new WorldState("world-1");
     const viewer = new Entity("viewer-1");
     const target = new Entity("target-1");
-    target.addAttribute("appearance", "A tall elf with silver hair", AttributeVisibility.PUBLIC);
-    target.addAttribute("clothing", "A green tunic", AttributeVisibility.PUBLIC);
+    target.addAttribute(
+      "appearance",
+      "A tall elf with silver hair",
+      AttributeVisibility.PUBLIC,
+    );
+    target.addAttribute(
+      "clothing",
+      "A green tunic",
+      AttributeVisibility.PUBLIC,
+    );
     world.addEntity(viewer);
     world.addEntity(target);
 

packages/core/src/alias.ts

@@ -0,0 +1,6 @@
+import { Entity } from "./entity.js";
+
+export function resolveAlias(viewer: Entity, targetId: string): string {
+  if (targetId === viewer.id) return "you";
+  return viewer.aliases.get(targetId) ?? "an unfamiliar figure";
+}

packages/core/src/clock.ts

@@ -85,7 +85,7 @@ export function naturalizeTime(now: Date, past: Date): string {
   const nowHour = now.getHours();
   const pastIsWaking = pastHour >= 5 && pastHour < 22;
   const nowIsWaking = nowHour >= 5 && nowHour < 22;
-  
+
   const isSameSubjectiveDay = pastIsWaking && nowIsWaking && deltaHours < 18;
 
   if (isSameSubjectiveDay) {

packages/core/src/entity.ts

@@ -3,9 +3,11 @@ import { AttributableObject } from "./attribute.js";
 export class Entity extends AttributableObject {
   locationId: string | null = null;
   readonly aliases: Map<string, string> = new Map();
+  isAgent: boolean = true;
 
-  constructor(id?: string, locationId?: string | null) {
+  constructor(id?: string, locationId?: string | null, isAgent?: boolean) {
     super(id);
     this.locationId = locationId ?? null;
+    this.isAgent = isAgent ?? true;
   }
 }

packages/core/src/index.ts

@@ -1,5 +1,12 @@
+/**
+ * Monorepo Hygiene Note:
+ * If a pure function only touches types owned by core (e.g., Entity, WorldState, Attribute),
+ * it belongs here in the core package (e.g., in a dedicated file like alias.ts), even if
+ * a higher-level package is currently its only consumer.
+ */
 export * from "./attribute.js";
 export * from "./entity.js";
 export * from "./world.js";
 export * from "./clock.js";
 export * from "./repository.js";
+export * from "./alias.js";

packages/core/src/repository.ts

@@ -73,6 +73,13 @@ export class SQLiteRepository {
     } catch {
       // Column already exists, ignore error
     }
+
+    // Safely add is_agent column if it does not exist in an existing database
+    try {
+      this.db.exec("ALTER TABLE objects ADD COLUMN is_agent INTEGER;");
+    } catch {
+      // Column already exists, ignore error
+    }
   }
 
   save(obj: AttributableObject, type: string, worldId?: string): void {
@@ -85,15 +92,20 @@ export class SQLiteRepository {
       let locationId: string | null = null;
       let aliasesJson: string | null = null;
       let connectionsJson: string | null = null;
+      let isAgent: number | null = null;
 
       if (obj instanceof Entity) {
         locationId = obj.locationId;
         aliasesJson = JSON.stringify(Array.from(obj.aliases.entries()));
+        isAgent = obj.isAgent ? 1 : 0;
       }
 
       // Check if it's a location (using duck typing to avoid circular import of Location)
       if (type === "location") {
-        const loc = obj as { parentId?: string | null; connections?: unknown[] };
+        const loc = obj as {
+          parentId?: string | null;
+          connections?: unknown[];
+        };
         locationId = loc.parentId ?? null;
         if (loc.connections) {
           connectionsJson = JSON.stringify(loc.connections);
@@ -104,18 +116,28 @@ export class SQLiteRepository {
       this.db
         .prepare(
           `
-        INSERT INTO objects (id, type, world_id, clock_iso, location_id, aliases_json, connections_json)
-        VALUES (?, ?, ?, ?, ?, ?, ?)
+        INSERT INTO objects (id, type, world_id, clock_iso, location_id, aliases_json, connections_json, is_agent)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?)
         ON CONFLICT(id) DO UPDATE SET 
           type = excluded.type, 
           world_id = excluded.world_id,
           clock_iso = excluded.clock_iso,
           location_id = excluded.location_id,
           aliases_json = excluded.aliases_json,
-          connections_json = excluded.connections_json
+          connections_json = excluded.connections_json,
+          is_agent = excluded.is_agent
       `,
         )
-        .run(obj.id, type, worldId || null, clockIso, locationId, aliasesJson, connectionsJson);
+        .run(
+          obj.id,
+          type,
+          worldId || null,
+          clockIso,
+          locationId,
+          aliasesJson,
+          connectionsJson,
+          isAgent,
+        );
 
       // Get current attributes from db to delete the ones that are no longer present
       const existingAttrs = this.db
@@ -208,16 +230,27 @@ export class SQLiteRepository {
     const objRow = this.db
       .prepare(
         `
-      SELECT type, location_id, aliases_json FROM objects WHERE id = ?
+      SELECT type, location_id, aliases_json, is_agent FROM objects WHERE id = ?
     `,
       )
-      .get(id) as { type: string; location_id: string | null; aliases_json: string | null } | undefined;
+      .get(id) as
+      | {
+          type: string;
+          location_id: string | null;
+          aliases_json: string | null;
+          is_agent: number | null;
+        }
+      | undefined;
 
     if (!objRow || objRow.type !== "entity") {
       return null;
     }
 
-    const entity = new Entity(id, objRow.location_id);
+    const entity = new Entity(
+      id,
+      objRow.location_id,
+      objRow.is_agent !== null ? objRow.is_agent === 1 : true,
+    );
     if (objRow.aliases_json) {
       const entries = JSON.parse(objRow.aliases_json) as [string, string][];
       for (const [k, v] of entries) {
@@ -238,7 +271,13 @@ export class SQLiteRepository {
       SELECT type, location_id, connections_json FROM objects WHERE id = ?
     `,
       )
-      .get(id) as { type: string; location_id: string | null; connections_json: string | null } | undefined;
+      .get(id) as
+      | {
+          type: string;
+          location_id: string | null;
+          connections_json: string | null;
+        }
+      | undefined;
 
     if (!objRow || objRow.type !== "location") {
       return null;
@@ -246,7 +285,9 @@ export class SQLiteRepository {
 
     const location = factory(id, objRow.location_id);
     if (objRow.connections_json) {
-      (location as { connections?: unknown[] }).connections = JSON.parse(objRow.connections_json);
+      (location as { connections?: unknown[] }).connections = JSON.parse(
+        objRow.connections_json,
+      );
     }
     this.reconstituteAttributes(location);
     return location;
@@ -262,13 +303,19 @@ export class SQLiteRepository {
       SELECT id, location_id, connections_json FROM objects WHERE type = 'location' AND world_id = ?
     `,
       )
-      .all(worldId) as { id: string; location_id: string | null; connections_json: string | null }[];
+      .all(worldId) as {
+      id: string;
+      location_id: string | null;
+      connections_json: string | null;
+    }[];
 
     const locations: T[] = [];
     for (const row of rows) {
       const loc = factory(row.id, row.location_id);
       if (row.connections_json) {
-        (loc as { connections?: unknown[] }).connections = JSON.parse(row.connections_json);
+        (loc as { connections?: unknown[] }).connections = JSON.parse(
+          row.connections_json,
+        );
       }
       this.reconstituteAttributes(loc);
       locations.push(loc);
@@ -300,13 +347,19 @@ export class SQLiteRepository {
       SELECT id, location_id, connections_json FROM objects WHERE type = 'location' AND world_id = ?
     `,
       )
-      .all(id) as { id: string; location_id: string | null; connections_json: string | null }[];
+      .all(id) as {
+      id: string;
+      location_id: string | null;
+      connections_json: string | null;
+    }[];
 
     for (const row of locationRows) {
       const loc = new GenericObject(row.id);
       (loc as { parentId?: string | null }).parentId = row.location_id;
       if (row.connections_json) {
-        (loc as { connections?: unknown[] }).connections = JSON.parse(row.connections_json);
+        (loc as { connections?: unknown[] }).connections = JSON.parse(
+          row.connections_json,
+        );
       }
       this.reconstituteAttributes(loc);
       worldState.addLocation(loc);
@@ -316,13 +369,22 @@ export class SQLiteRepository {
     const entityRows = this.db
       .prepare(
         `
-      SELECT id, location_id, aliases_json FROM objects WHERE type = 'entity' AND world_id = ?
+      SELECT id, location_id, aliases_json, is_agent FROM objects WHERE type = 'entity' AND world_id = ?
     `,
       )
-      .all(id) as { id: string; location_id: string | null; aliases_json: string | null }[];
+      .all(id) as {
+      id: string;
+      location_id: string | null;
+      aliases_json: string | null;
+      is_agent: number | null;
+    }[];
 
     for (const row of entityRows) {
-      const entity = new Entity(row.id, row.location_id);
+      const entity = new Entity(
+        row.id,
+        row.location_id,
+        row.is_agent !== null ? row.is_agent === 1 : true,
+      );
       if (row.aliases_json) {
         const entries = JSON.parse(row.aliases_json) as [string, string][];
         for (const [k, v] of entries) {
@@ -340,14 +402,22 @@ export class SQLiteRepository {
     const rows = this.db
       .prepare(
         `
-      SELECT id, aliases_json FROM objects WHERE type = 'entity'
+      SELECT id, aliases_json, is_agent FROM objects WHERE type = 'entity'
     `,
       )
-      .all() as { id: string; aliases_json: string | null }[];
+      .all() as {
+      id: string;
+      aliases_json: string | null;
+      is_agent: number | null;
+    }[];
 
     const entities: Entity[] = [];
     for (const row of rows) {
-      const entity = new Entity(row.id);
+      const entity = new Entity(
+        row.id,
+        null,
+        row.is_agent !== null ? row.is_agent === 1 : true,
+      );
       if (row.aliases_json) {
         const entries = JSON.parse(row.aliases_json) as [string, string][];
         for (const [k, v] of entries) {

packages/core/src/world.ts

@@ -1,6 +1,11 @@
-import { AttributableObject, Attribute, serializeAttributes } from "./attribute.js";
+import {
+  AttributableObject,
+  Attribute,
+  serializeAttributes,
+} from "./attribute.js";
 import { Entity } from "./entity.js";
 import { WorldClock } from "./clock.js";
+import { resolveAlias } from "./alias.js";
 
 export class WorldState extends AttributableObject {
   /**
@@ -53,8 +58,15 @@ export function serializeObjectiveWorldState(worldState: WorldState): string {
   // Serialize world attributes
   if (worldState.attributes.size > 0) {
     lines.push("World Attributes:");
-    const worldAttrsStr = serializeAttributes(Array.from(worldState.attributes.values()));
-    lines.push(worldAttrsStr.split("\n").map(l => "  " + l).join("\n"));
+    const worldAttrsStr = serializeAttributes(
+      Array.from(worldState.attributes.values()),
+    );
+    lines.push(
+      worldAttrsStr
+        .split("\n")
+        .map((l) => "  " + l)
+        .join("\n"),
+    );
   }
 
   // Serialize locations and their attributes/portals
@@ -62,33 +74,46 @@ export function serializeObjectiveWorldState(worldState: WorldState): string {
   if (worldState.locations.size > 0) {
     for (const loc of worldState.locations.values()) {
       lines.push(`  - Location [ID: ${loc.id}]:`);
-      
+
       const parentId = (loc as { parentId?: string | null }).parentId;
       if (parentId) {
         lines.push(`      * Parent Location ID: ${parentId}`);
       }
-      
+
       if (loc.attributes.size > 0) {
-        const locAttrsStr = serializeAttributes(Array.from(loc.attributes.values()));
-        lines.push(locAttrsStr.split("\n").map(l => "      " + l).join("\n"));
+        const locAttrsStr = serializeAttributes(
+          Array.from(loc.attributes.values()),
+        );
+        lines.push(
+          locAttrsStr
+            .split("\n")
+            .map((l) => "      " + l)
+            .join("\n"),
+        );
       } else {
         lines.push("      * (No attributes)");
       }
 
-      const connections = (loc as { connections?: unknown[] }).connections as {
-        targetId: string;
-        portalName?: string;
-        portalStateDescriptor?: string;
-        visionProp: number;
-        soundProp: number;
-        bidirectional: boolean;
-      }[] | undefined;
+      const connections = (loc as { connections?: unknown[] }).connections as
+        | {
+            targetId: string;
+            portalName?: string;
+            portalStateDescriptor?: string;
+            visionProp: number;
+            soundProp: number;
+            bidirectional: boolean;
+          }[]
+        | undefined;
 
       if (connections && connections.length > 0) {
         lines.push("      * Connections:");
         for (const conn of connections) {
-          const portalStr = conn.portalName ? ` via ${conn.portalName} (${conn.portalStateDescriptor || "normal"})` : "";
-          lines.push(`          -> To: ${conn.targetId}${portalStr} (Vision: ${conn.visionProp}, Sound: ${conn.soundProp})`);
+          const portalStr = conn.portalName
+            ? ` via ${conn.portalName} (${conn.portalStateDescriptor || "normal"})`
+            : "";
+          lines.push(
+            `          -> To: ${conn.targetId}${portalStr} (Vision: ${conn.visionProp}, Sound: ${conn.soundProp})`,
+          );
         }
       }
     }
@@ -105,8 +130,15 @@ export function serializeObjectiveWorldState(worldState: WorldState): string {
         lines.push(`      * Location ID: ${entity.locationId}`);
       }
       if (entity.attributes.size > 0) {
-        const entityAttrsStr = serializeAttributes(Array.from(entity.attributes.values()));
-        lines.push(entityAttrsStr.split("\n").map(l => "      " + l).join("\n"));
+        const entityAttrsStr = serializeAttributes(
+          Array.from(entity.attributes.values()),
+        );
+        lines.push(
+          entityAttrsStr
+            .split("\n")
+            .map((l) => "      " + l)
+            .join("\n"),
+        );
       } else {
         lines.push("      * (No attributes)");
       }
@@ -118,20 +150,6 @@ export function serializeObjectiveWorldState(worldState: WorldState): string {
   return lines.join("\n");
 }
 
-/**
- * Resolves how a viewer subjectively refers to a target entity.
- * - Self → "you"
- * - Known (in the viewer's alias map) → the subjective alias
- * - Unknown → "an unfamiliar figure"
- *
- * Mirrors the implementation in @omnia/memory's resolveAlias, inlined here
- * to avoid a circular dependency (memory depends on core).
- */
-function resolveAliasViewer(viewer: Entity, targetId: string): string {
-  if (targetId === viewer.id) return "you";
-  return viewer.aliases.get(targetId) ?? "an unfamiliar figure";
-}
-
 /**
  * Serializes a single attribute the way a viewer perceives it — name and
  * value only, no visibility/ACL metadata (the viewer already sees only
@@ -164,19 +182,29 @@ export function serializeSubjectiveWorldState(
   }
 
   const lines: string[] = [];
-  const viewerAlias = resolveAliasViewer(viewer, viewerId);
+  const viewerAlias = resolveAlias(viewer, viewerId);
 
   // --- World attributes (only those the viewer can see) ---
   const worldVisible = worldState.getVisibleAttributesFor(viewerId);
   if (worldVisible.length > 0) {
     lines.push("World (as you know it):");
-    lines.push(serializeVisibleAttributes(worldVisible).split("\n").map((l) => "  " + l).join("\n"));
+    lines.push(
+      serializeVisibleAttributes(worldVisible)
+        .split("\n")
+        .map((l) => "  " + l)
+        .join("\n"),
+    );
   }
 
   // --- Self ---
   lines.push(`Self (${viewerAlias}):`);
   const selfVisible = viewer.getVisibleAttributesFor(viewerId);
-  lines.push(serializeVisibleAttributes(selfVisible).split("\n").map((l) => "  " + l).join("\n"));
+  lines.push(
+    serializeVisibleAttributes(selfVisible)
+      .split("\n")
+      .map((l) => "  " + l)
+      .join("\n"),
+  );
 
   // --- Location / perceived entities ---
   lines.push("What you perceive around you:");
@@ -187,7 +215,12 @@ export function serializeSubjectiveWorldState(
       const locVisible = location.getVisibleAttributesFor(viewerId);
       if (locVisible.length > 0) {
         lines.push("    Location attributes:");
-        lines.push(serializeVisibleAttributes(locVisible).split("\n").map((l) => "      " + l).join("\n"));
+        lines.push(
+          serializeVisibleAttributes(locVisible)
+            .split("\n")
+            .map((l) => "      " + l)
+            .join("\n"),
+        );
       }
     }
   } else {
@@ -208,10 +241,15 @@ export function serializeSubjectiveWorldState(
   if (coLocated.length > 0) {
     lines.push("  Entities present with you:");
     for (const e of coLocated) {
-      const alias = resolveAliasViewer(viewer, e.id);
+      const alias = resolveAlias(viewer, e.id);
       lines.push(`    - ${alias}:`);
       const eVisible = e.getVisibleAttributesFor(viewerId);
-      lines.push(serializeVisibleAttributes(eVisible).split("\n").map((l) => "      " + l).join("\n"));
+      lines.push(
+        serializeVisibleAttributes(eVisible)
+          .split("\n")
+          .map((l) => "      " + l)
+          .join("\n"),
+      );
     }
   } else {
     lines.push("  You are alone here.");
@@ -220,7 +258,7 @@ export function serializeSubjectiveWorldState(
   if (elsewhere.length > 0) {
     lines.push("  Other presences you are aware of (elsewhere):");
     for (const e of elsewhere) {
-      const alias = resolveAliasViewer(viewer, e.id);
+      const alias = resolveAlias(viewer, e.id);
       lines.push(`    - ${alias} [elsewhere]`);
     }
   }

packages/core/tests/clock.test.ts

@@ -11,23 +11,39 @@ describe("TimeNaturalization Unit Tests (Tier 1)", () => {
 
   test("Tier 1: relative time ranges (< 6 hours)", () => {
     const now = new Date(2026, 6, 8, 12, 0, 0);
-    
+
     // < 1 minute
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 59, 30))).toBe("just now");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 59, 30))).toBe(
+      "just now",
+    );
     // < 3 minutes
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 58, 0))).toBe("moments ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 58, 0))).toBe(
+      "moments ago",
+    );
     // < 10 minutes
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 52, 0))).toBe("a few minutes ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 52, 0))).toBe(
+      "a few minutes ago",
+    );
     // < 30 minutes
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 40, 0))).toBe("several minutes ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 40, 0))).toBe(
+      "several minutes ago",
+    );
     // < 45 minutes
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 20, 0))).toBe("about half an hour ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 20, 0))).toBe(
+      "about half an hour ago",
+    );
     // < 1.5 hours (90 minutes)
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 10, 50, 0))).toBe("about an hour ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 10, 50, 0))).toBe(
+      "about an hour ago",
+    );
     // < 3 hours
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 9, 30, 0))).toBe("a couple hours ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 9, 30, 0))).toBe(
+      "a couple hours ago",
+    );
     // < 6 hours
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 7, 0, 0))).toBe("a few hours ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 7, 0, 0))).toBe(
+      "a few hours ago",
+    );
   });
 
   test("Tier 2: Same subjective day vs yesterday periods (6h <= delta < 48h)", () => {
@@ -35,12 +51,16 @@ describe("TimeNaturalization Unit Tests (Tier 1)", () => {
     // 9am to 3pm (delta 6h) -> morning
     const nowWaking = new Date(2026, 6, 8, 15, 0, 0);
     const pastMorning = new Date(2026, 6, 8, 9, 0, 0);
-    expect(naturalizeTime(nowWaking, pastMorning)).toBe("earlier today, in the morning");
+    expect(naturalizeTime(nowWaking, pastMorning)).toBe(
+      "earlier today, in the morning",
+    );
 
     // 2pm to 9pm (delta 7h) -> afternoon
     const nowEvening = new Date(2026, 6, 8, 21, 0, 0);
     const pastAfternoon = new Date(2026, 6, 8, 14, 0, 0);
-    expect(naturalizeTime(nowEvening, pastAfternoon)).toBe("earlier today, in the afternoon");
+    expect(naturalizeTime(nowEvening, pastAfternoon)).toBe(
+      "earlier today, in the afternoon",
+    );
 
     // 2. Previous night (past period: night (21-23))
     // 11pm to 5am (delta 6h) -> last night
@@ -52,45 +72,73 @@ describe("TimeNaturalization Unit Tests (Tier 1)", () => {
     // 1am to 7am (delta 6h) -> around midnight
     const nowMidnightRun = new Date(2026, 6, 8, 7, 0, 0);
     const pastMidnight = new Date(2026, 6, 8, 1, 0, 0);
-    expect(naturalizeTime(nowMidnightRun, pastMidnight)).toBe("around midnight");
+    expect(naturalizeTime(nowMidnightRun, pastMidnight)).toBe(
+      "around midnight",
+    );
 
     // 4. Late night (past period: late night (3-4))
     // 3am to 9am (delta 6h) -> late last night
     const nowLateNightRun = new Date(2026, 6, 8, 9, 0, 0);
     const pastLateNight = new Date(2026, 6, 8, 3, 0, 0);
-    expect(naturalizeTime(nowLateNightRun, pastLateNight)).toBe("late last night");
+    expect(naturalizeTime(nowLateNightRun, pastLateNight)).toBe(
+      "late last night",
+    );
 
     // 5. Yesterday waking hours (delta >= 6h, diff day / waking check fails)
     // 3pm to 9am next day (delta 18h) -> yesterday afternoon
     const nowNextDay = new Date(2026, 6, 9, 9, 0, 0);
     const pastYesterdayAfternoon = new Date(2026, 6, 8, 15, 0, 0);
-    expect(naturalizeTime(nowNextDay, pastYesterdayAfternoon)).toBe("yesterday afternoon");
+    expect(naturalizeTime(nowNextDay, pastYesterdayAfternoon)).toBe(
+      "yesterday afternoon",
+    );
   });
 
   test("Tier 3: Coarse relative time ranges (delta >= 48 hours)", () => {
     const now = new Date(2026, 6, 10, 12, 0, 0);
 
     // 2 days
-    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 0, 0))).toBe("a couple days ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 8, 11, 0, 0))).toBe(
+      "a couple days ago",
+    );
     // 3-6 days
-    expect(naturalizeTime(now, new Date(2026, 6, 6, 12, 0, 0))).toBe("a few days ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 6, 12, 0, 0))).toBe(
+      "a few days ago",
+    );
     // 7-13 days
-    expect(naturalizeTime(now, new Date(2026, 6, 1, 12, 0, 0))).toBe("about a week ago");
+    expect(naturalizeTime(now, new Date(2026, 6, 1, 12, 0, 0))).toBe(
+      "about a week ago",
+    );
     // 14-20 days
-    expect(naturalizeTime(now, new Date(2026, 5, 25, 12, 0, 0))).toBe("a couple weeks ago");
+    expect(naturalizeTime(now, new Date(2026, 5, 25, 12, 0, 0))).toBe(
+      "a couple weeks ago",
+    );
     // 21-29 days
-    expect(naturalizeTime(now, new Date(2026, 5, 15, 12, 0, 0))).toBe("a few weeks ago");
+    expect(naturalizeTime(now, new Date(2026, 5, 15, 12, 0, 0))).toBe(
+      "a few weeks ago",
+    );
     // 30-59 days
-    expect(naturalizeTime(now, new Date(2026, 5, 1, 12, 0, 0))).toBe("about a month ago");
+    expect(naturalizeTime(now, new Date(2026, 5, 1, 12, 0, 0))).toBe(
+      "about a month ago",
+    );
     // 60-89 days
-    expect(naturalizeTime(now, new Date(2026, 4, 1, 12, 0, 0))).toBe("a couple months ago");
+    expect(naturalizeTime(now, new Date(2026, 4, 1, 12, 0, 0))).toBe(
+      "a couple months ago",
+    );
     // 90-179 days
-    expect(naturalizeTime(now, new Date(2026, 3, 1, 12, 0, 0))).toBe("a few months ago");
+    expect(naturalizeTime(now, new Date(2026, 3, 1, 12, 0, 0))).toBe(
+      "a few months ago",
+    );
     // 180-364 days
-    expect(naturalizeTime(now, new Date(2026, 0, 1, 12, 0, 0))).toBe("many months ago");
+    expect(naturalizeTime(now, new Date(2026, 0, 1, 12, 0, 0))).toBe(
+      "many months ago",
+    );
     // 365-729 days
-    expect(naturalizeTime(now, new Date(2025, 6, 1, 12, 0, 0))).toBe("about a year ago");
+    expect(naturalizeTime(now, new Date(2025, 6, 1, 12, 0, 0))).toBe(
+      "about a year ago",
+    );
     // >= 730 days
-    expect(naturalizeTime(now, new Date(2023, 6, 1, 12, 0, 0))).toBe("years ago");
+    expect(naturalizeTime(now, new Date(2023, 6, 1, 12, 0, 0))).toBe(
+      "years ago",
+    );
   });
 });

packages/core/tests/core.test.ts

@@ -61,16 +61,21 @@ describe("Attribute & AttributableObject Unit Tests (Tier 1)", () => {
   test("AttributableObject visibility filtering", () => {
     const actor = new MockAttributable("actor");
     actor.addAttribute("eyes", "blue", AttributeVisibility.PUBLIC);
-    actor.addAttribute("secret", "42", AttributeVisibility.PRIVATE, new Set(["friend"]));
+    actor.addAttribute(
+      "secret",
+      "42",
+      AttributeVisibility.PRIVATE,
+      new Set(["friend"]),
+    );
 
     // Public viewer should only see public attributes
     const publicAttrs = actor.getVisibleAttributesFor("stranger");
-    expect(publicAttrs.map(a => a.name)).toEqual(["eyes"]);
+    expect(publicAttrs.map((a) => a.name)).toEqual(["eyes"]);
 
     // Authorized viewer should see both
     const privateAttrs = actor.getVisibleAttributesFor("friend");
-    expect(privateAttrs.map(a => a.name)).toContain("eyes");
-    expect(privateAttrs.map(a => a.name)).toContain("secret");
+    expect(privateAttrs.map((a) => a.name)).toContain("eyes");
+    expect(privateAttrs.map((a) => a.name)).toContain("secret");
   });
 });
 
@@ -131,7 +136,12 @@ describe("SQLiteRepository Unit Tests (Tier 1)", () => {
     const alice = new Entity("alice", "location-a");
     alice.addAttribute("name", "Alice Smith", AttributeVisibility.PUBLIC);
     // Secret attribute visible only to 'bob'
-    alice.addAttribute("diaries", "Private thoughts", AttributeVisibility.PRIVATE, new Set(["bob"]));
+    alice.addAttribute(
+      "diaries",
+      "Private thoughts",
+      AttributeVisibility.PRIVATE,
+      new Set(["bob"]),
+    );
     world.addEntity(alice);
 
     const bob = new Entity("bob");
@@ -161,7 +171,9 @@ describe("SQLiteRepository Unit Tests (Tier 1)", () => {
     expect(loadedAlice!.locationId).toBe("location-a");
     expect(loadedBob!.locationId).toBeNull();
     expect(loadedAlice!.attributes.get("name")?.getValue()).toBe("Alice Smith");
-    expect(loadedAlice!.attributes.get("name")?.visibility).toBe(AttributeVisibility.PUBLIC);
+    expect(loadedAlice!.attributes.get("name")?.visibility).toBe(
+      AttributeVisibility.PUBLIC,
+    );
 
     const diaryAttr = loadedAlice!.attributes.get("diaries")!;
     expect(diaryAttr.getValue()).toBe("Private thoughts");
@@ -191,17 +203,46 @@ describe("SQLiteRepository Unit Tests (Tier 1)", () => {
 
     db.close();
   });
+
+  test("Save and load entity isAgent property", () => {
+    const db = new Database(":memory:");
+    const repo = new SQLiteRepository(db);
+
+    const world = new WorldState("world-xyz");
+    const alice = new Entity("alice", null, false);
+    const bob = new Entity("bob", null, true);
+    world.addEntity(alice);
+    world.addEntity(bob);
+
+    repo.saveWorldState(world);
+
+    const loadedWorld = repo.loadWorldState("world-xyz")!;
+    const loadedAlice = loadedWorld.getEntity("alice")!;
+    const loadedBob = loadedWorld.getEntity("bob")!;
+
+    expect(loadedAlice.isAgent).toBe(false);
+    expect(loadedBob.isAgent).toBe(true);
+
+    db.close();
+  });
 });
 
 describe("Serializer & serializeObjectiveWorldState Unit Tests (Tier 1)", () => {
   test("serializeAttributes utility", () => {
     const obj = new MockAttributable("obj-1");
     obj.addAttribute("health", "100", AttributeVisibility.PUBLIC);
-    obj.addAttribute("secret", "key-123", AttributeVisibility.PRIVATE, new Set(["alice"]));
+    obj.addAttribute(
+      "secret",
+      "key-123",
+      AttributeVisibility.PRIVATE,
+      new Set(["alice"]),
+    );
 
     const result = serializeAttributes(Array.from(obj.attributes.values()));
     expect(result).toContain("* health: 100 (Visibility: PUBLIC)");
-    expect(result).toContain("* secret: key-123 (Visibility: PRIVATE) (Visible to: alice)");
+    expect(result).toContain(
+      "* secret: key-123 (Visibility: PRIVATE) (Visible to: alice)",
+    );
   });
 
   test("serializeObjectiveWorldState utility", () => {

packages/intent/src/intent-decoder.ts

@@ -1,6 +1,6 @@
-import { WorldState, serializeObjectiveWorldState } from "@omnia/core";
+import { WorldState } from "@omnia/core";
 import { ILLMProvider } from "@omnia/llm";
-import { IntentSequence, IntentSequenceSchema } from "./intent.js";
+import { IntentSequence, LLMIntentSequenceSchema } from "./intent.js";
 
 export class IntentDecoder {
   constructor(private llmProvider: ILLMProvider) {}
@@ -23,9 +23,15 @@ export class IntentDecoder {
     const actor = worldState.getEntity(actorId);
 
     const aliasEntries = actor ? Array.from(actor.aliases.entries()) : [];
-    const aliasContext = aliasEntries.length > 0
-      ? aliasEntries.map(([targetId, alias]) => `- "${alias}" refers to entity ID: "${targetId}"`).join("\n")
-      : "(No known aliases)";
+    const aliasContext =
+      aliasEntries.length > 0
+        ? aliasEntries
+            .map(
+              ([targetId, alias]) =>
+                `- "${alias}" refers to entity ID: "${targetId}"`,
+            )
+            .join("\n")
+        : "(No known aliases)";
 
     const systemPrompt = `
 You are the Intent Decoder for a narrative simulation engine.
@@ -33,20 +39,16 @@ Your job is to take a block of narrative prose written by an actor agent and dec
 
 For each intent you must:
 1. Classify its type:
-   - "dialogue": Any speech, conversation, or verbal communication directed at another entity.
-   - "action": Any physical or logical action performed in the world (e.g., moving, picking up, opening, looking).
-   - "monologue": An inner thought, reflection, or internal monologue. This is purely internal — not spoken aloud, not perceivable by any other entity, and not a physical action. Use this for any prose depicting the character thinking, reflecting, feeling, or narrating to themselves internally.
+   - "dialogue": if actor speaking, talking, whispering, murmuring, etc
+   - "action": Any physical or logical action performed in the world (e.g., moving, opening, looking).
+   - "monologue": An inner thought, reflection, or internal monologue/self narration.
 2. Extract the original text fragment from the prose that corresponds to this intent.
-3. Write a concise, structured description of the intent (what is being done or said). Include as much detail about the action as possible that was extracted from the narrative prose. Do not make up qualities.
-4. Identify the actorId (the entity performing the intent — this will always be "${actorId}").
-5. Identify targetIds — the entity IDs of the receiving parties. Use the "KNOWN ENTITY IDS" and "ACTOR ALIASES" mapping to resolve any subjective names, descriptions, or nicknames used in the prose to their correct system entity IDs. If no specific target, use an empty array. For "monologue" intents, targetIds must always be an empty array.
-
-Rules:
-- Preserve the chronological order of intents as they appear in the prose.
-- Do NOT merge unrelated actions into a single intent.
-- Dialogue and actions should be separate intents even if they happen in the same sentence.
-- If the prose contains only dialogue, return a single dialogue intent.
-- If the prose contains only a single action, return a single action intent.
+3. Populate "description" and "selfDescription":
+   - "description": No subject or name — a bare third-person verb phrase only (e.g. "clears their throat", "shakes their head slowly")
+   - "selfDescription": The same event from the actor's own perspective, second person, complete sentence starting with "You" (e.g. "You clear your throat.", "You shake your head slowly."). This is shown directly in the actor's own memory — it must never say "the actor" or refer to them in the third person.
+   - In case of a dialogue, the description and self Description only stores the exact words said by the entity. (e.g. "I will do that later", "Are you serious right now?")
+4. Identify targetIds — the entity IDs of the receiving parties. Use the "KNOWN ENTITY IDS" mapping to resolve any subjective names,or aliases used in the prose to their correct system entity IDs. If no specific target, use an empty array.
+5. Identify modifiers — a list of strings representing additional qualities or modifiers extracted from the narrative prose. This includes emotions, tone of voice, speed, manner of action, or statement type (e.g., "question", "anxious", "whispering", "slowly", "quietly", "forcefully"). If no modifiers are present, use an empty array.
 `.trim();
 
     const userContext = `
@@ -58,7 +60,7 @@ The actor refers to other entities using these subjective names/aliases:
 ${aliasContext}
 
 === WORLD STATE ===
-${serializeObjectiveWorldState(worldState)}
+${serializeSimplifiedWorldState(worldState)}
 
 === ACTOR ===
 Actor ID: ${actorId}
@@ -70,7 +72,7 @@ ${narrativeProse}
     const response = await this.llmProvider.generateStructuredResponse({
       systemPrompt,
       userContext,
-      schema: IntentSequenceSchema,
+      schema: LLMIntentSequenceSchema,
     });
 
     if (!response.success || !response.data) {
@@ -79,6 +81,42 @@ ${narrativeProse}
       );
     }
 
-    return response.data;
+    const fullIntents = response.data.intents.map((intent) => ({
+      ...intent,
+      actorId,
+    }));
+
+    return {
+      intents: fullIntents,
+    };
   }
 }
+
+function serializeSimplifiedWorldState(worldState: WorldState): string {
+  const lines: string[] = [];
+
+  lines.push("Locations:");
+  if (worldState.locations.size > 0) {
+    for (const loc of worldState.locations.values()) {
+      const parentId = (loc as { parentId?: string | null }).parentId;
+      const parentStr = parentId ? ` (Parent: ${parentId})` : "";
+      lines.push(`  - Location [ID: ${loc.id}]${parentStr}`);
+    }
+  } else {
+    lines.push("  (No locations)");
+  }
+
+  lines.push("Entities:");
+  if (worldState.entities.size > 0) {
+    for (const entity of worldState.entities.values()) {
+      const locStr = entity.locationId
+        ? ` (Location: ${entity.locationId})`
+        : "";
+      lines.push(`  - Entity [ID: ${entity.id}]${locStr}`);
+    }
+  } else {
+    lines.push("  (No entities)");
+  }
+
+  return lines.join("\n");
+}

packages/intent/src/intent.ts

@@ -14,7 +14,7 @@ export type IntentType = z.infer<typeof IntentTypeSchema>;
 /**
  * A single decoded intent extracted from narrative prose.
  */
-export const IntentSchema = z.object({
+export const LLMIntentSchema = z.object({
   /** The type of intent. */
   type: IntentTypeSchema,
 
@@ -24,8 +24,8 @@ export const IntentSchema = z.object({
   /** A concise, structured description of the intent's action or dialogue. */
   description: z.string(),
 
-  /** The entity ID of the actor performing the intent. */
-  actorId: z.string(),
+  /** The same event from the actor's own perspective (second person, "You"). */
+  selfDescription: z.string(),
 
   /**
    * Entity IDs of the receiving parties (e.g., who is being spoken to,
@@ -33,10 +33,25 @@ export const IntentSchema = z.object({
    * "monologue" intents, since they are not perceivable by anyone.
    */
   targetIds: z.array(z.string()),
+
+  /**
+   * Additional qualities or modifiers extracted from the prose (e.g., emotions,
+   * questions, speed, manner of action like 'quietly', 'whispering', 'anxiously').
+   */
+  modifiers: z.array(z.string()),
+});
+
+export const IntentSchema = LLMIntentSchema.extend({
+  /** The entity ID of the actor performing the intent. */
+  actorId: z.string(),
 });
 
 export type Intent = z.infer<typeof IntentSchema>;
 
+export const LLMIntentSequenceSchema = z.object({
+  intents: z.array(LLMIntentSchema),
+});
+
 /**
  * The full output of the Intent Decoder: an ordered sequence of intents
  * extracted from a single narrative prose block.

packages/intent/tests/intent.test.ts

@@ -15,8 +15,9 @@ describe("IntentDecoder Unit Tests (Tier 1)", () => {
           type: "action",
           originalText: "Alice opened the chest.",
           description: "Open the wooden chest.",
-          actorId: "alice",
+          selfDescription: "You open the wooden chest.",
           targetIds: [],
+          modifiers: [],
         },
       ],
     };
@@ -24,7 +25,11 @@ describe("IntentDecoder Unit Tests (Tier 1)", () => {
     const llm = new MockLLMProvider([mockResponse]);
     const decoder = new IntentDecoder(llm);
 
-    const result = await decoder.decode(world, "alice", "Alice opened the chest.");
+    const result = await decoder.decode(
+      world,
+      "alice",
+      "Alice opened the chest.",
+    );
 
     expect(result.intents).toHaveLength(1);
     expect(result.intents[0].type).toBe("action");
@@ -45,8 +50,9 @@ describe("IntentDecoder Unit Tests (Tier 1)", () => {
           type: "dialogue",
           originalText: '"Do you have the key?" Alice asked Bob.',
           description: "Alice asks Bob if he has the key.",
-          actorId: "alice",
+          selfDescription: "You ask Bob if he has the key.",
           targetIds: ["bob"],
+          modifiers: [],
         },
       ],
     };
@@ -78,15 +84,17 @@ describe("IntentDecoder Unit Tests (Tier 1)", () => {
           type: "dialogue",
           originalText: '"Cover me," Alice whispered to Bob.',
           description: "Alice whispers to Bob requesting cover.",
-          actorId: "alice",
+          selfDescription: "You whisper to Bob requesting cover.",
           targetIds: ["bob"],
+          modifiers: [],
         },
         {
           type: "action",
           originalText: "She crept towards the door and pulled the handle.",
           description: "Creep towards the door and pull the handle.",
-          actorId: "alice",
+          selfDescription: "You creep towards the door and pull the handle.",
           targetIds: [],
+          modifiers: [],
         },
       ],
     };

packages/intent/tsconfig.json

@@ -5,8 +5,5 @@
     "outDir": "dist"
   },
   "include": ["src"],
-  "references": [
-    { "path": "../core" },
-    { "path": "../llm" }
-  ]
+  "references": [{ "path": "../core" }, { "path": "../llm" }]
 }

packages/llm/package.json

@@ -7,6 +7,10 @@
     ".": "./dist/index.js"
   },
   "dependencies": {
-    "@types/node": "^26.1.0"
+    "@types/node": "^26.1.0",
+    "better-sqlite3": "^12.11.1"
+  },
+  "devDependencies": {
+    "@types/better-sqlite3": "^7.6.13"
   }
 }

packages/llm/src/config.ts

@@ -2,6 +2,7 @@ import { z } from "zod";
 
 const LLMConfigSchema = z.object({
   GOOGLE_API_KEY: z.string().optional(),
+  OPENROUTER_API_KEY: z.string().optional(),
 });
 
 export const llmConfig = LLMConfigSchema.parse(process.env);

packages/llm/src/index.ts

@@ -2,3 +2,5 @@ export * from "./llm.js";
 export * from "./config.js";
 export * from "./providers/google-genai.js";
 export * from "./providers/mock.js";
+export * from "./providers/openrouter.js";
+export * from "./provider-manager.js";

packages/llm/src/llm.ts

@@ -11,12 +11,83 @@ export interface LLMResponse<T> {
   success: boolean;
   data?: T;
   error?: string;
+  usage?: {
+    inputTokens: number;
+    outputTokens: number;
+    totalTokens: number;
+    modelName?: string;
+    providerInstanceName?: string;
+    maxContext?: number;
+  };
+}
+
+export interface LLMCallRecord {
+  systemPrompt: string;
+  userContext: string;
+  usage?: {
+    inputTokens: number;
+    outputTokens: number;
+    totalTokens: number;
+    modelName?: string;
+    providerInstanceName?: string;
+    maxContext?: number;
+  };
 }
 
 export interface ILLMProvider {
   providerName: string;
-  // We use Zod to ensure the generic T matches the schema
+  maxContext?: number;
   generateStructuredResponse<T extends z.ZodTypeAny>(
     request: LLMRequest<T>,
   ): Promise<LLMResponse<z.infer<T>>>;
+  lastCalls?: LLMCallRecord[];
 }
+
+export interface IEmbeddingProvider {
+  providerName: string;
+  embed(text: string): Promise<number[]>;
+}
+
+export interface ModelProviderInstance {
+  id: string;
+  name: string;
+  providerName: string;
+  apiKey: string;
+  isActive: boolean;
+  modelName?: string;
+  type: "generative" | "embedding";
+  maxContext?: number;
+}
+
+export interface ModelProviderMeta {
+  id: string;
+  displayName: string;
+  description: string;
+  defaultModel: string;
+  defaultEmbeddingModel: string;
+}
+
+export const AVAILABLE_PROVIDERS: ModelProviderMeta[] = [
+  {
+    id: "google-genai",
+    displayName: "Google Gemini",
+    description: "Official Gemini integration using Google Gen AI SDK",
+    defaultModel: "gemini-2.5-flash",
+    defaultEmbeddingModel: "gemini-embedding-001",
+  },
+  {
+    id: "openrouter",
+    displayName: "OpenRouter",
+    description:
+      "Multi-model router supporting Anthropic, OpenAI, DeepSeek, and local models",
+    defaultModel: "google/gemini-2.5-flash",
+    defaultEmbeddingModel: "openai/text-embedding-3-small",
+  },
+  {
+    id: "mock",
+    displayName: "Mock LLM Provider",
+    description: "Stateless mock provider for testing and offline development",
+    defaultModel: "mock",
+    defaultEmbeddingModel: "mock-embeddings",
+  },
+];

packages/llm/src/provider-manager.ts

@@ -0,0 +1,627 @@
+import Database from "better-sqlite3";
+import path from "path";
+import fs from "fs";
+import type { ModelProviderInstance } from "./llm.js";
+
+let dbPathOverride: string | null = null;
+let hasBootstrapped = false;
+
+export function setDbPathOverride(p: string | null) {
+  dbPathOverride = p;
+}
+
+export function resetHasBootstrapped() {
+  hasBootstrapped = false;
+}
+
+function getWorkspaceRoot() {
+  let current = process.cwd();
+  while (current !== "/" && current !== path.parse(current).root) {
+    if (
+      fs.existsSync(path.join(current, "pnpm-workspace.yaml")) ||
+      fs.existsSync(path.join(current, "package.json"))
+    ) {
+      if (fs.existsSync(path.join(current, "pnpm-workspace.yaml"))) {
+        return current;
+      }
+    }
+    current = path.dirname(current);
+  }
+  return process.cwd();
+}
+
+function getSettingsDb() {
+  let dbPath: string;
+  if (dbPathOverride) {
+    dbPath = dbPathOverride;
+  } else {
+    const wsRoot = getWorkspaceRoot();
+    const dbDir = path.resolve(wsRoot, "data");
+    if (!fs.existsSync(dbDir)) {
+      fs.mkdirSync(dbDir, { recursive: true });
+    }
+    dbPath = path.join(dbDir, "settings.db");
+  }
+  const db = new Database(dbPath);
+
+  db.prepare(
+    `
+    CREATE TABLE IF NOT EXISTS provider_instances (
+      id TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      providerName TEXT NOT NULL,
+      apiKey TEXT NOT NULL,
+      isActive INTEGER NOT NULL DEFAULT 0,
+      modelName TEXT,
+      type TEXT NOT NULL DEFAULT 'generative'
+    )
+  `,
+  ).run();
+
+  try {
+    db.prepare(
+      `ALTER TABLE provider_instances ADD COLUMN modelName TEXT`,
+    ).run();
+  } catch {
+    // ignore
+  }
+
+  try {
+    db.prepare(
+      `ALTER TABLE provider_instances ADD COLUMN type TEXT NOT NULL DEFAULT 'generative'`,
+    ).run();
+  } catch {
+    // ignore
+  }
+
+  try {
+    db.prepare(
+      `ALTER TABLE provider_instances ADD COLUMN maxContext INTEGER`,
+    ).run();
+  } catch {
+    // ignore
+  }
+
+  // Auto-bootstrap environment variables if DB contains 0 instances
+  try {
+    if (!hasBootstrapped) {
+      const totalCount = db
+        .prepare(`SELECT COUNT(*) as count FROM provider_instances`)
+        .get() as { count: number };
+      if (totalCount.count === 0) {
+        const googleKey = process.env.GOOGLE_API_KEY;
+        const openRouterKey = process.env.OPENROUTER_API_KEY;
+        let hasInsertedGenerative = false;
+
+        if (googleKey && googleKey.trim()) {
+          const id = "provider-default-google";
+          db.prepare(
+            `
+            INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+          `,
+          ).run(
+            id,
+            "Gemini (Env)",
+            "google-genai",
+            googleKey.trim(),
+            1,
+            "gemini-2.5-flash",
+            "generative",
+            32768,
+          );
+          hasInsertedGenerative = true;
+
+          const embedId = "provider-default-google-embed";
+          db.prepare(
+            `
+            INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+          `,
+          ).run(
+            embedId,
+            "Gemini Embed (Env)",
+            "google-genai",
+            googleKey.trim(),
+            1,
+            "gemini-embedding-001",
+            "embedding",
+            0,
+          );
+        }
+
+        if (openRouterKey && openRouterKey.trim()) {
+          const id = "provider-default-openrouter";
+          const isActive = hasInsertedGenerative ? 0 : 1;
+          db.prepare(
+            `
+            INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+          `,
+          ).run(
+            id,
+            "OpenRouter (Env)",
+            "openrouter",
+            openRouterKey.trim(),
+            isActive,
+            "google/gemini-2.5-flash",
+            "generative",
+            32768,
+          );
+        }
+      }
+      hasBootstrapped = true;
+    }
+  } catch {
+    // ignore write lock issues or other DB errors during bootstrap
+  }
+
+  return db;
+}
+
+export class ProviderManager {
+  static list(): ModelProviderInstance[] {
+    const db = getSettingsDb();
+    try {
+      const rows = db.prepare(`SELECT * FROM provider_instances`).all() as {
+        id: string;
+        name: string;
+        providerName: string;
+        apiKey: string;
+        isActive: number;
+        modelName?: string;
+        type: string;
+        maxContext?: number;
+      }[];
+      return rows.map((r) => ({
+        id: r.id,
+        name: r.name,
+        providerName: r.providerName,
+        apiKey: r.apiKey,
+        isActive: r.isActive === 1,
+        modelName: r.modelName || undefined,
+        type: (r.type as "generative" | "embedding") || "generative",
+        maxContext:
+          r.maxContext !== undefined && r.maxContext !== null
+            ? r.maxContext
+            : r.type === "embedding"
+              ? 0
+              : 32768,
+      }));
+    } finally {
+      db.close();
+    }
+  }
+
+  static create(
+    name: string,
+    providerName: string,
+    apiKey: string,
+    modelName?: string,
+    type: "generative" | "embedding" = "generative",
+    maxContext?: number,
+  ): ModelProviderInstance {
+    const db = getSettingsDb();
+    try {
+      const id = "provider-" + Date.now();
+      const activeCount = db
+        .prepare(
+          `SELECT COUNT(*) as count FROM provider_instances WHERE isActive = 1 AND type = ?`,
+        )
+        .get(type) as { count: number };
+      const isActive = activeCount.count === 0 ? 1 : 0;
+
+      const actualMaxContext =
+        maxContext !== undefined
+          ? maxContext
+          : type === "generative"
+            ? 32768
+            : 0;
+
+      db.prepare(
+        `
+        INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+      `,
+      ).run(
+        id,
+        name,
+        providerName,
+        apiKey,
+        isActive,
+        modelName || null,
+        type,
+        actualMaxContext,
+      );
+
+      return {
+        id,
+        name,
+        providerName,
+        apiKey,
+        isActive: isActive === 1,
+        modelName,
+        type,
+        maxContext: actualMaxContext,
+      };
+    } finally {
+      db.close();
+    }
+  }
+
+  static delete(id: string): void {
+    const db = getSettingsDb();
+    try {
+      const provider = db
+        .prepare(`SELECT isActive, type FROM provider_instances WHERE id = ?`)
+        .get(id) as { isActive: number; type: string } | undefined;
+      db.prepare(`DELETE FROM provider_instances WHERE id = ?`).run(id);
+
+      if (provider && provider.isActive === 1) {
+        const next = db
+          .prepare(`SELECT id FROM provider_instances WHERE type = ? LIMIT 1`)
+          .get(provider.type) as { id: string } | undefined;
+        if (next) {
+          db.prepare(
+            `UPDATE provider_instances SET isActive = 1 WHERE id = ?`,
+          ).run(next.id);
+        }
+      }
+    } finally {
+      db.close();
+    }
+  }
+
+  static setActive(id: string): void {
+    const db = getSettingsDb();
+    try {
+      const target = db
+        .prepare(`SELECT type FROM provider_instances WHERE id = ?`)
+        .get(id) as { type: string } | undefined;
+      if (target) {
+        db.prepare(
+          `UPDATE provider_instances SET isActive = 0 WHERE type = ?`,
+        ).run(target.type);
+        db.prepare(
+          `UPDATE provider_instances SET isActive = 1 WHERE id = ?`,
+        ).run(id);
+      }
+    } finally {
+      db.close();
+    }
+  }
+
+  static update(
+    id: string,
+    name: string,
+    providerName: string,
+    apiKey?: string,
+    modelName?: string,
+    type: "generative" | "embedding" = "generative",
+    maxContext?: number,
+  ): void {
+    const db = getSettingsDb();
+    try {
+      const actualMaxContext =
+        maxContext !== undefined
+          ? maxContext
+          : type === "generative"
+            ? 32768
+            : 0;
+      if (apiKey && apiKey.trim()) {
+        db.prepare(
+          `
+          UPDATE provider_instances
+          SET name = ?, providerName = ?, apiKey = ?, modelName = ?, type = ?, maxContext = ?
+          WHERE id = ?
+        `,
+        ).run(
+          name,
+          providerName,
+          apiKey,
+          modelName || null,
+          type,
+          actualMaxContext,
+          id,
+        );
+      } else {
+        db.prepare(
+          `
+          UPDATE provider_instances
+          SET name = ?, providerName = ?, modelName = ?, type = ?, maxContext = ?
+          WHERE id = ?
+        `,
+        ).run(
+          name,
+          providerName,
+          modelName || null,
+          type,
+          actualMaxContext,
+          id,
+        );
+      }
+    } finally {
+      db.close();
+    }
+  }
+
+  static getActive(
+    type: "generative" | "embedding" = "generative",
+  ): ModelProviderInstance | null {
+    const db = getSettingsDb();
+    try {
+      const row = db
+        .prepare(
+          `SELECT * FROM provider_instances WHERE isActive = 1 AND type = ?`,
+        )
+        .get(type) as
+        | {
+            id: string;
+            name: string;
+            providerName: string;
+            apiKey: string;
+            isActive: number;
+            modelName?: string;
+            type: string;
+            maxContext?: number;
+          }
+        | undefined;
+
+      if (!row) {
+        const totalCount = db
+          .prepare(`SELECT COUNT(*) as count FROM provider_instances`)
+          .get() as { count: number };
+        if (totalCount.count === 0) {
+          const googleKey = process.env.GOOGLE_API_KEY;
+          const openRouterKey = process.env.OPENROUTER_API_KEY;
+          let hasInsertedGenerative = false;
+
+          if (googleKey && googleKey.trim()) {
+            const id = "provider-default-google";
+            db.prepare(
+              `
+              INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+              VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            `,
+            ).run(
+              id,
+              "Gemini (Env)",
+              "google-genai",
+              googleKey.trim(),
+              1,
+              "gemini-2.5-flash",
+              "generative",
+              32768,
+            );
+            hasInsertedGenerative = true;
+
+            const embedId = "provider-default-google-embed";
+            db.prepare(
+              `
+              INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+              VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            `,
+            ).run(
+              embedId,
+              "Gemini Embed (Env)",
+              "google-genai",
+              googleKey.trim(),
+              1,
+              "gemini-embedding-001",
+              "embedding",
+              0,
+            );
+          }
+
+          if (openRouterKey && openRouterKey.trim()) {
+            const id = "provider-default-openrouter";
+            const isActive = hasInsertedGenerative ? 0 : 1;
+            db.prepare(
+              `
+              INSERT INTO provider_instances (id, name, providerName, apiKey, isActive, modelName, type, maxContext)
+              VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            `,
+            ).run(
+              id,
+              "OpenRouter (Env)",
+              "openrouter",
+              openRouterKey.trim(),
+              isActive,
+              "google/gemini-2.5-flash",
+              "generative",
+              32768,
+            );
+          }
+
+          const retryRow = db
+            .prepare(
+              `SELECT * FROM provider_instances WHERE isActive = 1 AND type = ?`,
+            )
+            .get(type) as
+            | {
+                id: string;
+                name: string;
+                providerName: string;
+                apiKey: string;
+                isActive: number;
+                modelName?: string;
+                type: string;
+                maxContext?: number;
+              }
+            | undefined;
+
+          if (retryRow) {
+            return {
+              id: retryRow.id,
+              name: retryRow.name,
+              providerName: retryRow.providerName,
+              apiKey: retryRow.apiKey,
+              isActive: true,
+              modelName: retryRow.modelName || undefined,
+              type: retryRow.type as "generative" | "embedding",
+              maxContext:
+                retryRow.maxContext !== undefined &&
+                retryRow.maxContext !== null
+                  ? retryRow.maxContext
+                  : retryRow.type === "embedding"
+                    ? 0
+                    : 32768,
+            };
+          }
+        }
+
+        // If there's no active row but some rows exist, return the first one as active, or update it
+        const firstRow = db
+          .prepare(`SELECT * FROM provider_instances WHERE type = ? LIMIT 1`)
+          .get(type) as
+          | {
+              id: string;
+              name: string;
+              providerName: string;
+              apiKey: string;
+              isActive: number;
+              modelName?: string;
+              type: string;
+              maxContext?: number;
+            }
+          | undefined;
+        if (firstRow) {
+          db.prepare(
+            `UPDATE provider_instances SET isActive = 1 WHERE id = ?`,
+          ).run(firstRow.id);
+          return {
+            id: firstRow.id,
+            name: firstRow.name,
+            providerName: firstRow.providerName,
+            apiKey: firstRow.apiKey,
+            isActive: true,
+            modelName: firstRow.modelName || undefined,
+            type: firstRow.type as "generative" | "embedding",
+            maxContext:
+              firstRow.maxContext !== undefined && firstRow.maxContext !== null
+                ? firstRow.maxContext
+                : firstRow.type === "embedding"
+                  ? 0
+                  : 32768,
+          };
+        }
+        return null;
+      }
+
+      return {
+        id: row.id,
+        name: row.name,
+        providerName: row.providerName,
+        apiKey: row.apiKey,
+        isActive: true,
+        modelName: row.modelName || undefined,
+        type: (row.type as "generative" | "embedding") || "generative",
+        maxContext:
+          row.maxContext !== undefined && row.maxContext !== null
+            ? row.maxContext
+            : row.type === "embedding"
+              ? 0
+              : 32768,
+      };
+    } catch {
+      const googleKey = process.env.GOOGLE_API_KEY;
+      if (type === "embedding") {
+        if (googleKey && googleKey.trim()) {
+          return {
+            id: "provider-default-env-embed-fallback",
+            name: "Gemini Embed (Env Fallback)",
+            providerName: "google-genai",
+            apiKey: googleKey.trim(),
+            isActive: true,
+            modelName: "gemini-embedding-001",
+            type: "embedding",
+            maxContext: 0,
+          };
+        }
+        return null;
+      }
+
+      // generative fallback
+      if (googleKey && googleKey.trim()) {
+        return {
+          id: "provider-default-env-fallback",
+          name: "Gemini (Env Fallback)",
+          providerName: "google-genai",
+          apiKey: googleKey.trim(),
+          isActive: true,
+          modelName: "gemini-2.5-flash",
+          type: "generative",
+          maxContext: 32768,
+        };
+      }
+      const openRouterKey = process.env.OPENROUTER_API_KEY;
+      if (openRouterKey && openRouterKey.trim()) {
+        return {
+          id: "provider-default-env-fallback",
+          name: "OpenRouter (Env Fallback)",
+          providerName: "openrouter",
+          apiKey: openRouterKey.trim(),
+          isActive: true,
+          modelName: "google/gemini-2.5-flash",
+          type: "generative",
+          maxContext: 32768,
+        };
+      }
+      return null;
+    } finally {
+      db.close();
+    }
+  }
+
+  static getMappings(): Record<string, string> {
+    const db = getSettingsDb();
+    try {
+      db.prepare(
+        `
+        CREATE TABLE IF NOT EXISTS provider_mappings (
+          task TEXT PRIMARY KEY,
+          providerInstanceId TEXT NOT NULL
+        )
+      `,
+      ).run();
+      const rows = db.prepare(`SELECT * FROM provider_mappings`).all() as {
+        task: string;
+        providerInstanceId: string;
+      }[];
+      const mappings: Record<string, string> = {};
+      for (const row of rows) {
+        mappings[row.task] = row.providerInstanceId;
+      }
+      return mappings;
+    } finally {
+      db.close();
+    }
+  }
+
+  static setMapping(task: string, providerInstanceId: string): void {
+    const db = getSettingsDb();
+    try {
+      db.prepare(
+        `
+        CREATE TABLE IF NOT EXISTS provider_mappings (
+          task TEXT PRIMARY KEY,
+          providerInstanceId TEXT NOT NULL
+        )
+      `,
+      ).run();
+      if (!providerInstanceId) {
+        db.prepare(`DELETE FROM provider_mappings WHERE task = ?`).run(task);
+      } else {
+        db.prepare(
+          `
+          INSERT INTO provider_mappings (task, providerInstanceId)
+          VALUES (?, ?)
+          ON CONFLICT(task) DO UPDATE SET providerInstanceId = excluded.providerInstanceId
+        `,
+        ).run(task, providerInstanceId);
+      }
+    } finally {
+      db.close();
+    }
+  }
+}