feat(gui): Minor UI Improvements to InteractView

(fixes Allow Instance Duplication
Fixes #32)

.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

.dockerignore

@@ -0,0 +1,21 @@
+node_modules/
+.git/
+.gitignore
+.gitattributes
+*.md
+.editorconfig
+.prettierrc
+.prettierignore
+eslint.config.mjs
+.env
+.env*
+tests/
+content/
+docs/
+web/landing/
+web/docs/
+vitest.config.ts
+*.tsbuildinfo
+.next/
+dist/
+.astro/

.github/workflows/build-image.yml

@@ -0,0 +1,65 @@
+name: Build Docker Image
+
+on:
+  push:
+    branches: [master]
+    tags: ["v*"]
+    paths-ignore:
+      - "web/docs/**"
+      - "web/landing/**"
+      - "content/**"
+      - "README.md"
+      - "CONTRIBUTING.md"
+      - ".github/workflows/deploy-docs.yml"
+  pull_request:
+    branches: [master]
+    paths-ignore:
+      - "web/docs/**"
+      - "web/landing/**"
+      - "content/**"
+      - "*.md"
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}/omnia-gui
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=sha,format=short
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: apps/gui/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          provenance: false

.github/workflows/deploy-docs.yml

@@ -5,9 +5,9 @@ on:
     branches:
       - master
     paths:
-      - 'web/docs/**'
-      - 'pnpm-lock.yaml'
-      - '.github/workflows/deploy-docs.yml'
+      - "web/docs/**"
+      - "pnpm-lock.yaml"
+      - ".github/workflows/deploy-docs.yml"
   workflow_dispatch:
 
 jobs:
@@ -28,7 +28,7 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 22
-          cache: 'pnpm'
+          cache: "pnpm"
 
       - name: Install Dependencies
         run: pnpm install --frozen-lockfile
@@ -41,4 +41,4 @@ jobs:
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
-          workingDirectory: 'web/docs'
+          workingDirectory: "web/docs"

README.md

@@ -17,7 +17,7 @@
 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.
 
 <p align="center">
-  <img src="./web/docs/src/assets/img/puppet.webp" />
+  <img src="./web/docs/src/assets/img/puppet.webp" alt="This pixel-art style image, set against a black background with the title 'The Puppet Master Paradox' at the top, depicts two identical, stylized puppets with white, round heads and orange patterned bodies facing each other. Between them hovers a small, glowing, four-pointed star, while each puppet has an orange-outlined speech bubble above it: the left one states, 'Good evening. Welcome to my humble bakery!', and the right one replies, 'Nice to meet you Assassin Bob. Wait... wha-', concluding with a small white 'X' icon in the bottom right corner." />
 </p>
 
 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:
@@ -41,7 +41,7 @@ Omnia answers every one of these failures with the same move: **pull the thing t
 ## What this buys you
 
 <p align="center">
-  <img src="./web/docs/src/assets/img/features.webp" />
+  <img src="./web/docs/src/assets/img/features.webp" alt="This pixel-art image features a grid of six distinct panels, each with an orange-outlined, jagged border, illustrating different concepts: 'Emergent Deceit' shows a person hiding a sword behind their back while offering a rose to another person; 'Divergent Perceptions' depicts two figures sitting at a table with speech bubbles labeled 'A' and 'B'; 'Player Agnostic' shows three figures engaged in different activities—watering a plant, standing still, and juggling—under the plumbob symbol from the sims; 'State Validated Agency' displays a stylized symbol of a person partially inside a portal crossed out by a large red 'X'; 'Deterministic Time' shows four circular panels representing a day-night cycle connected by arrows and clock icons; and 'Bring Your Own Model' features a large, central omnia icon surrounded by various LLM model logos including chatgpt, mistral, deepseek, claude, etc****" />
 </p>
 
 The payoff is scenario complexity that **uni-agent systems structurally cannot represent, no matter how good the model gets**.
@@ -91,7 +91,7 @@ Access the application locally at `http://localhost:3000`.
 
 ### The Actor Agent
 
-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.
+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 **Cognitive 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:
 
@@ -121,8 +121,8 @@ Space is a graph: `world → region → location → point of interest`, connect
 
 ### 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 (implemented):** Summarized, embedded memory entries for semantic retrieval, keeping verbatim quotes only for high-salience lines.
+- **Cognitive 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.
+- **Memory Ledger (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.
@@ -148,7 +148,7 @@ The bundled demo scenario is exactly this: [`talking-room`](./content/demo/scena
 
 ## 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:**
 
@@ -156,20 +156,18 @@ The finish line for the first milestone is small on purpose.
 - [x] Typed intent pipeline: `dialogue` / `action` / `monologue`, decoded from free prose.
 - [x] World Architect: LLM validation plus time-delta generation, end-to-end for single actions.
 - [x] Actor Agent with epistemically-bounded prompts (self, memory, co-located entities, subjective time).
-- [x] Verbatim memory buffer with per-observer subjective serialization and alias resolution.
+- [x] Verbatim Cognitive Buffer with per-observer subjective serialization and alias resolution.
 - [x] Spatial location graph (data model; perception is co-location only).
 - [x] Scenario loader (JSON → SQLite) and a playable CLI loop with human or LLM actors.
 
 **[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)_
+- [x] Each has Cognitive Buffer and Memory Ledger 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.
-
 ### 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 framework. `v0` keeps the single-call Architect on purpose.
@@ -185,7 +183,7 @@ omnia/
     intent/      intent types (dialogue/action/monologue) and the prose decoder
     architect/   World Architect: LLM validation plus time-delta generation
     actor/       actor agent: epistemically-bounded prompts, pluggable prose generators
-    memory/      verbatim buffer; later the vector archive, dossier, and affect vectors
+    memory/      Cognitive Buffer; Memory Ledger (vector archive), dossier, and affect vectors
     spatial/     location and POI graph, portal-based perception
     llm/         ILLMProvider interface plus Gemini and deterministic mock implementations
     scenario/    scenario JSON schema and loader (JSON → SQLite)

apps/gui/Dockerfile

@@ -0,0 +1,59 @@
+FROM node:22-slim AS base
+ENV PNPM_HOME="/pnpm" \
+    PATH="$PNPM_HOME:$PATH"
+RUN corepack enable && corepack prepare pnpm@11.15.1 --activate
+WORKDIR /app
+
+FROM base AS build-deps
+RUN apt-get update -qq && \
+    apt-get install -qq -y --no-install-recommends \
+    python3 make g++ && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY pnpm-lock.yaml pnpm-workspace.yaml ./
+COPY package.json tsconfig.json tsconfig.base.json ./
+COPY apps/gui/package.json apps/gui/package.json
+COPY apps/gui/tsconfig.json apps/gui/tsconfig.json
+COPY apps/gui/next.config.ts apps/gui/next.config.ts
+COPY apps/gui/postcss.config.mjs apps/gui/postcss.config.mjs
+COPY apps/gui/components.json apps/gui/components.json
+COPY packages/actor/package.json packages/actor/package.json
+COPY packages/architect/package.json packages/architect/package.json
+COPY packages/core/package.json packages/core/package.json
+COPY packages/intent/package.json packages/intent/package.json
+COPY packages/llm/package.json packages/llm/package.json
+COPY packages/memory/package.json packages/memory/package.json
+COPY packages/scenario/package.json packages/scenario/package.json
+COPY packages/spatial/package.json packages/spatial/package.json
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store \
+    pnpm install --frozen-lockfile
+
+FROM build-deps AS pkg-builder
+COPY packages/ ./packages/
+RUN pnpm build
+
+FROM pkg-builder AS gui-builder
+COPY apps/gui/src ./apps/gui/src
+COPY apps/gui/public ./apps/gui/public
+RUN pnpm --filter @omnia/gui build
+
+FROM base AS runner
+ENV NODE_ENV=production
+RUN apt-get update -qq && \
+    apt-get install -qq -y --no-install-recommends \
+    python3 make g++ && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY --from=gui-builder /app/package.json /app/pnpm-workspace.yaml ./
+COPY --from=gui-builder /app/node_modules ./node_modules
+COPY --from=gui-builder /app/packages ./packages
+COPY --from=gui-builder /app/apps/gui/package.json \
+    /app/apps/gui/next.config.ts \
+    /app/apps/gui/postcss.config.mjs \
+    ./apps/gui/
+COPY --from=gui-builder /app/apps/gui/.next ./apps/gui/.next
+COPY --from=gui-builder /app/apps/gui/public ./apps/gui/public
+
+WORKDIR /app/apps/gui
+EXPOSE 3000
+CMD ["pnpm", "start"]

apps/gui/package.json

@@ -19,8 +19,11 @@
     "@omnia/memory": "workspace:*",
     "@omnia/scenario": "workspace:*",
     "@omnia/spatial": "workspace:*",
+    "@omnia/voice": "workspace:*",
+    "@radix-ui/react-dialog": "^1.1.19",
     "@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",

apps/gui/src/app/actions.ts

@@ -4,7 +4,14 @@ 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 {
+  ProviderManager,
+  ModelProviderInstance,
+  getAvailableProviders as listAvailableProviders,
+  ModelProviderMeta,
+  ModelLister,
+  ModelInfo,
+} from "@omnia/llm";
 
 function resolveScenarioPath(relative: string): string {
   const cwd = process.cwd();
@@ -25,13 +32,13 @@ function resolveScenarioPath(relative: string): string {
 }
 
 type ActionResult =
-  | { ok: true; snapshot: SimSnapshot }
-  | { ok: false; error: string };
+  { ok: true; snapshot: SimSnapshot } | { ok: false; error: string };
 
 export async function startSimulation(input: {
   scenario?: string;
   playEntity?: string;
   providerInstanceId?: string;
+  customName?: string;
 }): Promise<ActionResult> {
   try {
     const scenarioFile =
@@ -46,6 +53,7 @@ export async function startSimulation(input: {
       resolved,
       input.playEntity || undefined,
       input.providerInstanceId,
+      input.customName,
     );
 
     if (snapshot.status === "error") {
@@ -123,10 +131,10 @@ export async function getConfigStatus(): Promise<{
   apiKeySet: boolean;
   apiKeyPreview: string;
   model: string;
-  availableScenarios: { path: string; name: string }[];
+  availableScenarios: { path: string; name: string; description: string }[];
 }> {
   const apiKey = process.env.GOOGLE_API_KEY;
-  const scenarios: { path: string; name: string }[] = [];
+  const scenarios: { path: string; name: string; description: string }[] = [];
 
   const cwd = process.cwd();
   const candidates = [
@@ -150,6 +158,7 @@ export async function getConfigStatus(): Promise<{
           scenarios.push({
             path: `content/demo/scenarios/${file}`,
             name: content.name || file,
+            description: content.description || "",
           });
         } catch {
           /* skip invalid */
@@ -167,8 +176,7 @@ export async function getConfigStatus(): Promise<{
 }
 
 export async function listSavedSimulations(): Promise<
-  | { ok: true; sessions: SimSnapshot[] }
-  | { ok: false; error: string }
+  { ok: true; sessions: SimSnapshot[] } | { ok: false; error: string }
 > {
   try {
     const sessions = simulationManager.listSavedSessions();
@@ -196,7 +204,9 @@ export async function resumeSimulation(simId: string): Promise<ActionResult> {
   }
 }
 
-export async function getScenarioEntities(scenarioPath: string): Promise<
+export async function getScenarioEntities(
+  scenarioPath: string,
+): Promise<
   | { ok: true; entities: { id: string; name: string }[] }
   | { ok: false; error: string }
 > {
@@ -206,10 +216,12 @@ export async function getScenarioEntities(scenarioPath: string): Promise<
       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,
-    }));
+    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 {
@@ -219,9 +231,9 @@ export async function getScenarioEntities(scenarioPath: string): Promise<
   }
 }
 
-export async function deleteSimulation(simId: string): Promise<
-  { ok: true } | { ok: false; error: string }
-> {
+export async function deleteSimulation(
+  simId: string,
+): Promise<{ ok: true } | { ok: false; error: string }> {
   try {
     simulationManager.deleteSession(simId);
     return { ok: true };
@@ -233,7 +245,9 @@ export async function deleteSimulation(simId: string): Promise<
   }
 }
 
-export async function listProviderInstances(): Promise<ModelProviderInstance[]> {
+export async function listProviderInstances(): Promise<
+  ModelProviderInstance[]
+> {
   return ProviderManager.list();
 }
 
@@ -244,8 +258,23 @@ export async function createProviderInstance(
   modelName?: string,
   type: "generative" | "embedding" = "generative",
   maxContext?: number,
+  endpointUrl?: string,
 ): Promise<ModelProviderInstance> {
-  return ProviderManager.create(name, providerName, apiKey, modelName, type, maxContext);
+  return ProviderManager.create(
+    name,
+    providerName,
+    apiKey,
+    modelName,
+    type,
+    maxContext,
+    endpointUrl,
+  );
+}
+
+export async function duplicateProviderInstance(
+  id: string,
+): Promise<ModelProviderInstance | null> {
+  return ProviderManager.duplicate(id);
 }
 
 export async function deleteProviderInstance(id: string): Promise<void> {
@@ -264,8 +293,18 @@ export async function updateProviderInstance(
   modelName?: string,
   type: "generative" | "embedding" = "generative",
   maxContext?: number,
+  endpointUrl?: string,
 ): Promise<void> {
-  ProviderManager.update(id, name, providerName, apiKey, modelName, type, maxContext);
+  ProviderManager.update(
+    id,
+    name,
+    providerName,
+    apiKey,
+    modelName,
+    type,
+    maxContext,
+    endpointUrl,
+  );
 }
 
 export async function getProviderMappings(): Promise<Record<string, string>> {
@@ -280,9 +319,58 @@ export async function setProviderMapping(
 }
 
 export async function getAvailableProviders(): Promise<ModelProviderMeta[]> {
-  return AVAILABLE_PROVIDERS;
+  return listAvailableProviders();
 }
 
-export async function regenerateEmbeddings(newProviderInstanceId?: string): Promise<void> {
+export async function regenerateEmbeddings(
+  newProviderInstanceId?: string,
+): Promise<void> {
   await simulationManager.regenerateAllEmbeddings(newProviderInstanceId);
 }
+
+/**
+ * Fetch available models for a provider given its credentials.
+ * Used when creating a new instance (before it's saved to the DB).
+ */
+export async function fetchAvailableModels(
+  providerName: string,
+  apiKey: string,
+  endpointUrl?: string,
+): Promise<ModelInfo[]> {
+  return ModelLister.listModels(providerName, apiKey, endpointUrl);
+}
+
+/**
+ * Fetch available models for an existing saved provider instance.
+ * The API key is retrieved from the DB server-side — never sent to the client.
+ */
+export async function fetchAvailableModelsForInstance(
+  instanceId: string,
+): Promise<ModelInfo[]> {
+  const instances = ProviderManager.list();
+  const inst = instances.find((i) => i.id === instanceId);
+  if (!inst) return [];
+  return ModelLister.listModels(
+    inst.providerName,
+    inst.apiKey,
+    inst.endpointUrl,
+  );
+}
+
+export async function renameSimulation(
+  simId: string,
+  newName: string,
+): Promise<{ ok: true; snapshot: SimSnapshot } | { ok: false; error: string }> {
+  try {
+    const snapshot = await simulationManager.rename(simId, newName);
+    if (!snapshot) {
+      return { ok: false, error: "Simulation session not found" };
+    }
+    return { ok: true, snapshot };
+  } catch (err) {
+    return {
+      ok: false,
+      error: err instanceof Error ? err.message : "Failed to rename simulation",
+    };
+  }
+}

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

@@ -0,0 +1,5 @@
+import { BuilderView } from "@/components/builder/BuilderView";
+
+export default function BuilderPage() {
+  return <BuilderView />;
+}

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

@@ -1,212 +1,5 @@
-"use client";
-
-import { useEffect, useState, useCallback } from "react";
-import {
-  getConfigStatus,
-  listProviderInstances,
-  getProviderMappings,
-  setProviderMapping,
-  getAvailableProviders,
-  regenerateEmbeddings,
-} from "@/app/play/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 }[];
-}
+import { ConfigView } from "@/components/config/ConfigView";
 
 export default function ConfigPage() {
-  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="mx-auto max-w-[800px] px-10 py-12">
-      <h1 className="mb-6 text-headline-lg text-primary animate-fade-in">Configuration</h1>
-
-      {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) --" />
-                    </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>
-  );
+  return <ConfigView />;
 }

apps/gui/src/app/globals.css

@@ -52,6 +52,15 @@
   --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);
@@ -64,7 +73,7 @@
 
 :root {
   --radius: 0;
-  --background: #fff8f5;
+  --background: #f4e9dc;
   --foreground: #201a16;
   --card: #fcf3e8;
   --card-foreground: #201a16;
@@ -85,6 +94,15 @@
   --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;
@@ -96,7 +114,7 @@
 }
 
 .dark {
-  --background: #201a16;
+  --background: #181310;
   --foreground: #fff8f5;
   --card: #362f2a;
   --card-foreground: #fff8f5;
@@ -117,6 +135,15 @@
   --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;

apps/gui/src/app/layout.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import type { ReactNode } from "react";
+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";
@@ -34,37 +34,62 @@ const spaceMono = Space_Mono({
 
 const links = [
   { href: "/", label: "Home" },
-  { href: "/play", label: "Play" },
   { 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} ${spaceMono.variable} min-h-dvh bg-background text-foreground font-sans`}>
-        <nav className="border-b border-dotted border-border/20 bg-secondary/30">
-          <div className="mx-auto max-w-[800px] px-10 py-3 flex items-center justify-center gap-8">
-            <Link href="/" className="font-head text-headline-sm text-primary no-underline tracking-wide hover:opacity-85">
-              Omnia
-            </Link>
+      <body
+        className={`${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) => (
-                  <NavigationMenuItem key={link.href}>
-                    <NavigationMenuLink asChild active={pathname === link.href}>
-                      <Link href={link.href} className="text-foreground no-underline font-medium text-sm">
-                        {link.label}
-                      </Link>
-                    </NavigationMenuLink>
-                  </NavigationMenuItem>
-                ))}
+                {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>
-        {children}
+        <main className="flex-1 flex flex-col min-h-0">{children}</main>
       </body>
     </html>
   );

apps/gui/src/app/page.tsx

@@ -1,35 +1,5 @@
-import Link from "next/link";
-import { Card, CardHeader, CardTitle, CardDescription } from "@/components/ui/card";
+import { HomeView } from "@/components/home/HomeView";
 
 export default function Home() {
-  return (
-    <main className="mx-auto max-w-[800px] px-10 py-12">
-      <h1 className="mb-2 text-headline-lg text-primary">Omnia GUI</h1>
-      <p className="mb-8 text-body-md text-muted-foreground">
-        Configuration and gameplay interface for the Omnia simulation engine.
-      </p>
-      <div className="flex gap-6">
-        <Link href="/play" className="flex-1 no-underline text-foreground">
-          <Card className="transition-all hover:-translate-y-0.5 hover:shadow-[3px_3px_0_0_var(--border)] active:translate-y-0 active:shadow-[1px_1px_0_0_var(--border)]">
-            <CardHeader>
-              <CardTitle>Play</CardTitle>
-              <CardDescription>
-                Start a simulation and interact with NPCs
-              </CardDescription>
-            </CardHeader>
-          </Card>
-        </Link>
-        <Link href="/config" className="flex-1 no-underline text-foreground">
-          <Card className="transition-all hover:-translate-y-0.5 hover:shadow-[3px_3px_0_0_var(--border)] active:translate-y-0 active:shadow-[1px_1px_0_0_var(--border)]">
-            <CardHeader>
-              <CardTitle>Config</CardTitle>
-              <CardDescription>
-                Check environment, API keys, and available scenarios
-              </CardDescription>
-            </CardHeader>
-          </Card>
-        </Link>
-      </div>
-    </main>
-  );
+  return <HomeView />;
 }

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

@@ -1,5 +1,18 @@
+"use client";
+
 import { PlayView } from "@/components/play/PlayView";
+import { Suspense } from "react";
 
 export default function PlayPage() {
-  return <PlayView />;
+  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/BuilderView.tsx

@@ -0,0 +1,18 @@
+"use client";
+
+export function BuilderView() {
+  return (
+    <div className="flex-1 overflow-y-auto w-full">
+      <div className="mx-auto max-w-[800px] px-10 py-12">
+        <h1 className="mb-6 text-headline-lg text-primary animate-fade-in">
+          Scenario Builder
+        </h1>
+        <div className="border border-border/30 bg-card p-6 shadow-[2px_2px_0_0_var(--border)] min-h-[300px] flex flex-col items-center justify-center">
+          <p className="text-body-md text-muted-foreground font-mono text-center">
+            Scenario builder interface coming soon...
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+}

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-[1024px] 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' Cognitive Buffer entries to the Memory Ledger via LLM summarization and pruning.",
+                    type: "generative",
+                  },
+                  {
+                    key: "embeddings",
+                    label: "Text Embeddings Generator",
+                    desc: "Generates vector embeddings for Memory Ledger 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

@@ -1,14 +1,21 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useEffect, useRef, useState } from "react";
 import {
   createProviderInstance,
   updateProviderInstance,
   setActiveProviderInstance,
   regenerateEmbeddings,
   deleteProviderInstance,
-} from "@/app/play/actions";
-import type { ModelProviderInstance, ModelProviderMeta } from "@omnia/llm";
+  duplicateProviderInstance,
+  fetchAvailableModels,
+  fetchAvailableModelsForInstance,
+} from "@/app/actions";
+import type {
+  ModelInfo,
+  ModelProviderInstance,
+  ModelProviderMeta,
+} from "@omnia/llm";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
@@ -22,23 +29,35 @@ import {
   SelectTrigger,
   SelectValue,
 } from "@/components/ui/select";
+import {
+  Combobox,
+  ComboboxContent,
+  ComboboxEmpty,
+  ComboboxInput,
+  ComboboxItem,
+  ComboboxList,
+} from "@/components/ui/combobox";
 import {
   Card,
   CardHeader,
   CardContent,
-  CardFooter,
   CardTitle,
   CardAction,
 } from "@/components/ui/card";
-import {
-  Item,
-  ItemContent,
-  ItemGroup,
-  ItemTitle,
-  ItemDescription,
-} from "@/components/ui/item";
+import { Item, ItemContent, ItemGroup, ItemTitle } from "@/components/ui/item";
 import { Empty, EmptyTitle, EmptyDescription } from "@/components/ui/empty";
 import { cn } from "@/lib/utils";
+import { RefreshCwIcon } from "lucide-react";
+
+const providerLogoMap: Record<string, string> = {
+  anthropic: "/claude_logo.webp",
+  "google-genai": "/gemini_logo.webp",
+  openrouter: "/openrouter_logo.webp",
+  ollama: "/ollama_logo.webp",
+  deepseek: "/deepseek_logo.webp",
+  openai: "/openai_logo.webp",
+  groq: "/groq_logo.webp",
+};
 
 interface ProviderInstancesConfigProps {
   instances: ModelProviderInstance[];
@@ -65,9 +84,65 @@ export function ProviderInstancesConfig({
     "generative",
   );
   const [editMaxContext, setEditMaxContext] = useState<number>(32768);
+  const [editEndpointUrl, setEditEndpointUrl] = useState("");
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState("");
 
+  // Model listing state
+  const [availableModels, setAvailableModels] = useState<ModelInfo[]>([]);
+  const [modelsLoading, setModelsLoading] = useState(false);
+  const debounceTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  // Fetch models for an existing saved instance
+  const fetchModelsForExistingInstance = async (instanceId: string) => {
+    setModelsLoading(true);
+    setAvailableModels([]);
+    try {
+      const models = await fetchAvailableModelsForInstance(instanceId);
+      setAvailableModels(models);
+    } catch {
+      setAvailableModels([]);
+    } finally {
+      setModelsLoading(false);
+    }
+  };
+
+  // Fetch models for a new instance (using live key/endpoint from form)
+  const fetchModelsForNewInstance = (
+    provider: string,
+    apiKey: string,
+    endpointUrl: string,
+  ) => {
+    if (debounceTimer.current) clearTimeout(debounceTimer.current);
+
+    const isOllama = provider === "ollama";
+    const hasCredentials = isOllama
+      ? endpointUrl.trim().length > 0
+      : apiKey.trim().length > 8; // don't spam API with partial keys
+
+    if (!hasCredentials) {
+      setAvailableModels([]);
+      return;
+    }
+
+    debounceTimer.current = setTimeout(async () => {
+      setModelsLoading(true);
+      setAvailableModels([]);
+      try {
+        const models = await fetchAvailableModels(
+          provider,
+          isOllama ? "none" : apiKey,
+          isOllama ? endpointUrl : undefined,
+        );
+        setAvailableModels(models);
+      } catch {
+        setAvailableModels([]);
+      } finally {
+        setModelsLoading(false);
+      }
+    }, 600);
+  };
+
   useEffect(() => {
     if (selectedInstanceId === null) {
       setEditName("");
@@ -77,6 +152,8 @@ export function ProviderInstancesConfig({
       setEditIsActive(false);
       setEditType("generative");
       setEditMaxContext(32768);
+      setEditEndpointUrl("");
+      setAvailableModels([]);
     } else if (selectedInstanceId === "new") {
       setEditName("");
       const defaultProvider = "google-genai";
@@ -87,6 +164,8 @@ export function ProviderInstancesConfig({
       setEditModel(pMeta?.defaultModel || "gemini-2.5-flash");
       setEditIsActive(false);
       setEditMaxContext(32768);
+      setEditEndpointUrl("");
+      setAvailableModels([]);
     } else {
       const inst = instances.find((i) => i.id === selectedInstanceId);
       if (inst) {
@@ -110,10 +189,20 @@ export function ProviderInstancesConfig({
             ? inst.maxContext
             : 32768,
         );
+        setEditEndpointUrl(inst.endpointUrl || "");
+        setAvailableModels([]);
+        // Auto-fetch models for existing instances
+        fetchModelsForExistingInstance(selectedInstanceId);
       }
     }
   }, [selectedInstanceId, instances, availableProviders]);
 
+  // Re-fetch models when provider/key/endpoint changes on new instance form
+  useEffect(() => {
+    if (selectedInstanceId !== "new") return;
+    fetchModelsForNewInstance(editProvider, editKey, editEndpointUrl);
+  }, [editProvider, editKey, editEndpointUrl, selectedInstanceId]);
+
   const handleProviderChange = (providerId: string | null) => {
     if (!providerId) return;
     setEditProvider(providerId);
@@ -123,6 +212,7 @@ export function ProviderInstancesConfig({
         ? pMeta?.defaultEmbeddingModel || ""
         : pMeta?.defaultModel || "",
     );
+    setAvailableModels([]);
   };
 
   const handleTypeChange = (type: "generative" | "embedding") => {
@@ -135,6 +225,14 @@ export function ProviderInstancesConfig({
     );
   };
 
+  const handleRefreshModels = () => {
+    if (selectedInstanceId && selectedInstanceId !== "new") {
+      fetchModelsForExistingInstance(selectedInstanceId);
+    } else {
+      fetchModelsForNewInstance(editProvider, editKey, editEndpointUrl);
+    }
+  };
+
   const handleSave = async (e: React.FormEvent) => {
     e.preventDefault();
     if (!editName.trim()) {
@@ -150,7 +248,7 @@ export function ProviderInstancesConfig({
       let targetInstanceId = selectedInstanceId;
 
       if (selectedInstanceId === "new") {
-        if (!editKey.trim()) {
+        if (editProvider !== "ollama" && !editKey.trim()) {
           setError("API Key is required for new instances.");
           setLoading(false);
           return;
@@ -158,10 +256,13 @@ export function ProviderInstancesConfig({
         const created = await createProviderInstance(
           editName,
           editProvider,
-          editKey,
+          editProvider === "ollama" ? "none" : editKey,
           editModel || undefined,
           editType,
           editType === "generative" ? editMaxContext : 0,
+          editProvider === "ollama"
+            ? editEndpointUrl || "http://localhost:11434"
+            : undefined,
         );
         if (editIsActive) {
           await setActiveProviderInstance(created.id);
@@ -195,10 +296,13 @@ export function ProviderInstancesConfig({
           selectedInstanceId,
           editName,
           editProvider,
-          editKey || undefined,
+          editProvider === "ollama" ? "none" : editKey || undefined,
           editModel || undefined,
           editType,
           editType === "generative" ? editMaxContext : 0,
+          editProvider === "ollama"
+            ? editEndpointUrl || "http://localhost:11434"
+            : undefined,
         );
         if (editIsActive) {
           await setActiveProviderInstance(selectedInstanceId);
@@ -235,9 +339,25 @@ export function ProviderInstancesConfig({
     }
   };
 
+  const handleDuplicate = async () => {
+    if (selectedInstanceId === "new" || selectedInstanceId === null) return;
+    try {
+      setLoading(true);
+      setError("");
+      const duplicated = await duplicateProviderInstance(selectedInstanceId);
+      if (duplicated) {
+        setSelectedInstanceId(duplicated.id);
+        await onChanged();
+      }
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setLoading(false);
+    }
+  };
+
   return (
-    <section className="mb-8">
-      <h2 className="mb-3 text-lg">LLM Provider Instances</h2>
+    <section className="mb-8 flex min-h-[600px] flex-col">
       {error && (
         <div className="mb-4 rounded border-2 border-red-500 bg-red-50 px-3 py-2 text-sm text-red-700">
           {error}
@@ -245,7 +365,7 @@ export function ProviderInstancesConfig({
       )}
       <div
         className={cn(
-          "mt-4 grid min-h-[400px] grid-cols-1 gap-4 md:grid-cols-[30%_70%]",
+          "mt-4 grid flex-1 grid-cols-1 gap-4 md:grid-cols-[30%_70%]",
           loading && "pointer-events-none opacity-60",
           "transition-opacity duration-200",
         )}
@@ -279,13 +399,24 @@ export function ProviderInstancesConfig({
                     )}
                     onClick={() => setSelectedInstanceId(inst.id)}
                   >
-                    <ItemContent>
-                      <ItemTitle>{inst.name}</ItemTitle>
-                      <ItemDescription>
-                        {inst.providerName} ({inst.type || "generative"})
-                      </ItemDescription>
+                    <ItemContent className="flex-row items-center gap-3">
+                      {providerLogoMap[inst.providerName] && (
+                        <img
+                          src={providerLogoMap[inst.providerName]}
+                          alt={inst.providerName}
+                          className="max-h-[38px] max-w-[38px] shrink-0 rounded-sm object-contain"
+                        />
+                      )}
+                      <div className="flex flex-col gap-1">
+                        <ItemTitle>{inst.name}</ItemTitle>
+                        <div className="flex flex-row gap-1.5">
+                          {inst.isActive && <Badge>Active</Badge>}
+                          <Badge variant="outline">
+                            {inst.type === "generative" ? "gen" : "embed"}
+                          </Badge>
+                        </div>
+                      </div>
                     </ItemContent>
-                    {inst.isActive && <Badge>Active</Badge>}
                   </Item>
                 ))}
               </ItemGroup>
@@ -328,6 +459,7 @@ export function ProviderInstancesConfig({
                 <div className="grid grid-cols-[2fr_3fr] gap-4">
                   <div className="flex flex-col gap-1.5">
                     <Label>Instance Type</Label>
+                    {/* TODO: Change this to choice card */}
                     <Select
                       value={editType}
                       onValueChange={(v) =>
@@ -335,11 +467,11 @@ export function ProviderInstancesConfig({
                       }
                       items={[
                         {
-                          label: "Generative (Chat / Text Completion)",
+                          label: "Generative (Text Generation)",
                           value: "generative",
                         },
                         {
-                          label: "Embedding (Vector generation)",
+                          label: "Embedding (Vector Embeddings)",
                           value: "embedding",
                         },
                       ]}
@@ -350,10 +482,10 @@ export function ProviderInstancesConfig({
                       <SelectContent>
                         <SelectGroup>
                           <SelectItem value="generative">
-                            Generative (Chat / Text Completion)
+                            Generative (Text Generation)
                           </SelectItem>
                           <SelectItem value="embedding">
-                            Embedding (Vector generation)
+                            Embedding (Vector Embeddings)
                           </SelectItem>
                         </SelectGroup>
                       </SelectContent>
@@ -373,7 +505,10 @@ export function ProviderInstancesConfig({
                       <SelectTrigger className="w-full">
                         <SelectValue />
                       </SelectTrigger>
-                      <SelectContent align="end" className="min-w-[var(--anchor-width)]">
+                      <SelectContent
+                        align="end"
+                        className="min-w-[var(--anchor-width)]"
+                      >
                         <SelectGroup>
                           {availableProviders.map((p) => (
                             <SelectItem key={p.id} value={p.id}>
@@ -394,30 +529,109 @@ export function ProviderInstancesConfig({
                   </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>
+                {editProvider !== "ollama" && (
+                  <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>
+                )}
+
+                {editProvider === "ollama" && (
+                  <div className="flex flex-col gap-1.5">
+                    <Label htmlFor="formEndpoint">Endpoint URL</Label>
+                    <Input
+                      id="formEndpoint"
+                      value={editEndpointUrl}
+                      onChange={(e) => setEditEndpointUrl(e.target.value)}
+                      placeholder="e.g. http://localhost:11434"
+                      required
+                    />
+                  </div>
+                )}
 
                 <div className="flex flex-col gap-1.5">
-                  <Label htmlFor="formModel">Model Name</Label>
-                  <Input
-                    id="formModel"
+                  <div className="flex items-center justify-between">
+                    <Label htmlFor="formModel">Model</Label>
+                    <button
+                      type="button"
+                      onClick={handleRefreshModels}
+                      disabled={modelsLoading}
+                      className="flex items-center gap-1 rounded px-1.5 py-0.5 text-xs text-muted-foreground transition-colors hover:bg-muted hover:text-foreground disabled:opacity-40"
+                      title="Refresh model list"
+                    >
+                      <RefreshCwIcon
+                        className={cn(
+                          "size-3",
+                          modelsLoading && "animate-spin",
+                        )}
+                      />
+                      {modelsLoading
+                        ? "Fetching…"
+                        : availableModels.length > 0
+                          ? `${availableModels.length} models`
+                          : "Fetch models"}
+                    </button>
+                  </div>
+                  <Combobox
                     value={editModel}
-                    onChange={(e) => setEditModel(e.target.value)}
-                    placeholder="e.g. gemini-2.5-flash, gemini-2.5-pro"
-                  />
+                    onValueChange={(v) => {
+                      if (v) setEditModel(v);
+                    }}
+                    items={availableModels.map((m) => m.id)}
+                  >
+                    <ComboboxInput
+                      id="formModel"
+                      placeholder={
+                        modelsLoading
+                          ? "Fetching models…"
+                          : availableModels.length > 0
+                            ? "Search or select a model…"
+                            : "e.g. gemini-2.5-flash"
+                      }
+                      disabled={modelsLoading}
+                      showClear={false}
+                      value={editModel}
+                      onChange={(e) =>
+                        setEditModel((e.target as HTMLInputElement).value)
+                      }
+                      className="w-full"
+                    />
+                    <ComboboxContent>
+                      <ComboboxEmpty>
+                        {modelsLoading
+                          ? "Fetching models…"
+                          : "No models found. Type a custom model name above."}
+                      </ComboboxEmpty>
+                      <ComboboxList>
+                        {(modelId: string) => {
+                          const model = availableModels.find(
+                            (m) => m.id === modelId,
+                          );
+                          return (
+                            <ComboboxItem key={modelId} value={modelId}>
+                              <span className="flex-1 truncate">{modelId}</span>
+                              {model?.ownedBy && (
+                                <span className="ml-2 shrink-0 text-xs text-muted-foreground">
+                                  {model.ownedBy}
+                                </span>
+                              )}
+                            </ComboboxItem>
+                          );
+                        }}
+                      </ComboboxList>
+                    </ComboboxContent>
+                  </Combobox>
                 </div>
 
                 {editType === "generative" && (
@@ -438,7 +652,7 @@ export function ProviderInstancesConfig({
                   </div>
                 )}
 
-                <div className="mb-4 flex flex-row items-center gap-2">
+                <div className="flex flex-row items-center gap-2">
                   <Checkbox
                     id="formActive"
                     checked={editIsActive}
@@ -448,25 +662,35 @@ export function ProviderInstancesConfig({
                     Set as Active Instance
                   </Label>
                 </div>
-              </CardContent>
 
-              <CardFooter className="justify-between">
-                <div>
-                  {selectedInstanceId !== "new" && (
-                    <Button
-                      type="button"
-                      variant="destructive"
-                      onClick={handleDelete}
-                      disabled={loading}
-                    >
-                      Delete
-                    </Button>
-                  )}
+                <div className="flex flex-row items-center justify-between gap-2">
+                  <div className="flex flex-row gap-2">
+                    {selectedInstanceId !== "new" && (
+                      <>
+                        <Button
+                          type="button"
+                          variant="destructive"
+                          onClick={handleDelete}
+                          disabled={loading}
+                        >
+                          Delete
+                        </Button>
+                        <Button
+                          type="button"
+                          variant="secondary"
+                          onClick={handleDuplicate}
+                          disabled={loading}
+                        >
+                          Duplicate
+                        </Button>
+                      </>
+                    )}
+                  </div>
+                  <Button type="submit" disabled={loading}>
+                    {loading ? "Saving..." : "Save"}
+                  </Button>
                 </div>
-                <Button type="submit" disabled={loading}>
-                  {loading ? "Saving..." : "Save"}
-                </Button>
-              </CardFooter>
+              </CardContent>
             </form>
           )}
         </Card>

apps/gui/src/components/home/HomeView.tsx

@@ -0,0 +1,464 @@
+"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 { Input } from "@/components/ui/input";
+import { Bot, UserRound } from "lucide-react";
+
+export function HomeView() {
+  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 [customName, setCustomName] = 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=${id}`);
+  };
+
+  const handleDelete = async (id: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    if (!confirm("Are you sure you want to delete this simulation session?"))
+      return;
+    setLoading(true);
+    try {
+      const res = await deleteSimulation(id);
+      if (!res.ok) {
+        setError(res.error);
+      } else {
+        await loadSavedSessions();
+      }
+    } catch (err) {
+      setError(
+        err instanceof Error ? err.message : "Failed to delete session.",
+      );
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleScenarioClick = async (scenario: {
+    path: string;
+    name: string;
+  }) => {
+    setScenarioForModal(scenario);
+    setLoadingEntities(true);
+    setSelectedEntityForModal(""); // Reset selection to Spectator
+    setCustomName(scenario.name); // Set custom simulation name default
+    try {
+      const res = await getScenarioEntities(scenario.path);
+      if (res.ok) {
+        setModalEntities(res.entities);
+      } else {
+        setModalEntities([]);
+      }
+    } catch {
+      setModalEntities([]);
+    } finally {
+      setLoadingEntities(false);
+    }
+  };
+
+  const handleStartFromModal = async () => {
+    if (!scenarioForModal) return;
+    setLoading(true);
+    setError("");
+    const targetScenario = scenarioForModal;
+    setScenarioForModal(null); // close modal
+    try {
+      const result = await startSimulation({
+        scenario: targetScenario.path,
+        playEntity: selectedEntityForModal || undefined,
+        customName: customName.trim() || undefined,
+      });
+
+      if (!result.ok) {
+        setError(result.error);
+        setLoading(false);
+        return;
+      }
+
+      // Navigate to the separate play page with the newly created simulation ID
+      router.push(`/play?simId=${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-5xl 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="shrink-0 w-72 border border-border/30 bg-card p-5 shadow-sm transition-all flex flex-col justify-between h-37"
+                  >
+                    <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={`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 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-37">
+                    <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="shrink-0 w-64 border border-border/30 bg-card p-5 shadow-sm flex flex-col justify-between h-37"
+                  >
+                    <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 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-37">
+                    <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-100">
+                <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">
+                        Custom Simulation Name
+                      </label>
+                      <Input
+                        value={customName}
+                        onChange={(e) => setCustomName(e.target.value)}
+                        placeholder="Enter custom name..."
+                      />
+                    </div>
+                    <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>
+                      <div className="flex flex-wrap gap-2">
+                        <Button
+                          type="button"
+                          variant={
+                            selectedEntityForModal === ""
+                              ? "default"
+                              : "outline"
+                          }
+                          onClick={() => setSelectedEntityForModal("")}
+                          className="flex-1 min-w-40"
+                        >
+                          <Bot />
+                          Run Fully Autonomously
+                        </Button>
+                        {modalEntities.map((ent) => (
+                          <Button
+                            key={ent.id}
+                            type="button"
+                            variant={
+                              selectedEntityForModal === ent.id
+                                ? "default"
+                                : "outline"
+                            }
+                            onClick={() => setSelectedEntityForModal(ent.id)}
+                            className="flex-1 min-w-40"
+                          >
+                            <UserRound />
+                            Play as {ent.name}
+                          </Button>
+                        ))}
+                      </div>
+                    </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/HandoffModal.tsx

@@ -0,0 +1,260 @@
+"use client";
+
+import { useState } from "react";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Badge } from "@/components/ui/badge";
+import { PromptAnalyzer } from "@/components/play/PromptAnalyzer";
+
+interface HandoffModalProps {
+  entry: SimSnapshot["log"][number];
+  onClose: () => void;
+}
+
+export function HandoffModal({ entry, onClose }: HandoffModalProps) {
+  const [activeTab, setActiveTab] = useState<"chunks" | "prompt" | "output">(
+    "chunks",
+  );
+
+  const handoffResult = entry.handoffResult;
+  const chunks = handoffResult?.chunks || [];
+
+  const getImportanceColor = (score: number) => {
+    if (score >= 8)
+      return "bg-destructive/10 text-destructive border-destructive/30";
+    if (score >= 5) return "bg-amber-500/10 text-amber-500 border-amber-500/30";
+    return "bg-emerald-500/10 text-emerald-500 border-emerald-500/30";
+  };
+
+  return (
+    <Dialog open onOpenChange={(open) => !open && onClose()}>
+      <DialogContent className="max-w-200 sm:max-w-200 h-[85vh] overflow-hidden flex flex-col p-0 gap-0 border-2">
+        <DialogHeader className="px-6 pt-5 pb-4 border-b">
+          <DialogTitle className="text-lg font-head tracking-wide text-primary flex items-center justify-between">
+            <span>Memory Handoff Details &mdash; {entry.entityName}</span>
+            {entry.usage && (
+              <span className="text-xs font-mono font-normal text-muted-foreground">
+                {entry.usage.modelName || "Handoff Model"}
+              </span>
+            )}
+          </DialogTitle>
+        </DialogHeader>
+
+        {/* Custom Tab Switcher */}
+        <div className="flex border-b bg-muted/20 px-6 py-2 gap-2">
+          <button
+            onClick={() => setActiveTab("chunks")}
+            className={`px-3 py-1.5 text-xs font-medium border transition-all duration-100 ${
+              activeTab === "chunks"
+                ? "border-primary bg-primary/10 text-primary shadow-[1px_1px_0_0_var(--primary)]"
+                : "border-transparent hover:bg-secondary text-muted-foreground"
+            }`}
+          >
+            Promoted Chunks ({chunks.length})
+          </button>
+          <button
+            onClick={() => setActiveTab("prompt")}
+            className={`px-3 py-1.5 text-xs font-medium border transition-all duration-100 ${
+              activeTab === "prompt"
+                ? "border-primary bg-primary/10 text-primary shadow-[1px_1px_0_0_var(--primary)]"
+                : "border-transparent hover:bg-secondary text-muted-foreground"
+            }`}
+          >
+            Raw LLM Prompt
+          </button>
+          <button
+            onClick={() => setActiveTab("output")}
+            className={`px-3 py-1.5 text-xs font-medium border transition-all duration-100 ${
+              activeTab === "output"
+                ? "border-primary bg-primary/10 text-primary shadow-[1px_1px_0_0_var(--primary)]"
+                : "border-transparent hover:bg-secondary text-muted-foreground"
+            }`}
+          >
+            Raw JSON Output
+          </button>
+        </div>
+
+        <div className="overflow-y-auto flex-1 p-6 space-y-4">
+          {activeTab === "chunks" && (
+            <div className="space-y-4">
+              {entry.usage && (
+                <div className="grid grid-cols-3 gap-4 border border-dotted border-border/20 p-3 bg-secondary/10 rounded text-xs font-mono">
+                  <div>
+                    <span className="text-muted-foreground block uppercase tracking-wider text-[10px]">
+                      Input Tokens
+                    </span>
+                    <strong className="text-foreground">
+                      {entry.usage.inputTokens}
+                    </strong>
+                  </div>
+                  <div>
+                    <span className="text-muted-foreground block uppercase tracking-wider text-[10px]">
+                      Output Tokens
+                    </span>
+                    <strong className="text-foreground">
+                      {entry.usage.outputTokens}
+                    </strong>
+                  </div>
+                  <div>
+                    <span className="text-muted-foreground block uppercase tracking-wider text-[10px]">
+                      Total Tokens
+                    </span>
+                    <strong className="text-foreground">
+                      {entry.usage.totalTokens}
+                    </strong>
+                  </div>
+                </div>
+              )}
+
+              {chunks.length === 0 ? (
+                <div className="border border-dotted border-border/30 p-8 text-center bg-card text-muted-foreground rounded">
+                  <p className="text-sm">
+                    No memories were promoted to the Memory Ledger during this
+                    turn.
+                  </p>
+                  <p className="text-xs mt-1">
+                    All Cognitive Buffer entries were summarized or forgotten.
+                  </p>
+                </div>
+              ) : (
+                <div className="space-y-4">
+                  <h3 className="text-xs font-semibold uppercase tracking-wider text-muted-foreground font-mono">
+                    Memory Ledger Additions
+                  </h3>
+                  {chunks.map(
+                    (
+                      chunk: {
+                        content: string;
+                        importance: number;
+                        quotes?: string[];
+                        retainInBuffer?: boolean;
+                        involvedEntityIds?: string[];
+                      },
+                      index: number,
+                    ) => (
+                      <div
+                        key={index}
+                        className="border border-border/30 bg-card p-4 shadow-sm relative flex flex-col gap-3"
+                      >
+                        <div className="flex justify-between items-start gap-4">
+                          <div className="flex-1 text-sm text-foreground/90 leading-relaxed font-sans">
+                            {chunk.content}
+                          </div>
+                          <Badge
+                            variant="outline"
+                            className={`font-mono text-xs ${getImportanceColor(chunk.importance)}`}
+                          >
+                            Importance: {chunk.importance}
+                          </Badge>
+                        </div>
+
+                        {chunk.quotes && chunk.quotes.length > 0 && (
+                          <div className="bg-secondary/10 border-l-2 border-primary/50 p-2.5 my-1 text-xs italic text-muted-foreground space-y-1">
+                            {chunk.quotes.map((quote: string, qIdx: number) => (
+                              <div key={qIdx}>&ldquo;{quote}&rdquo;</div>
+                            ))}
+                          </div>
+                        )}
+
+                        <div className="flex flex-wrap gap-2 text-xs pt-2 border-t border-dotted border-border/10">
+                          {chunk.retainInBuffer ? (
+                            <Badge
+                              variant="outline"
+                              className="bg-primary/5 text-primary border-primary/20 text-[10px] font-mono"
+                            >
+                              Pinned in Buffer
+                            </Badge>
+                          ) : (
+                            <Badge
+                              variant="outline"
+                              className="bg-muted text-muted-foreground border-border/20 text-[10px] font-mono"
+                            >
+                              Pruned from Buffer
+                            </Badge>
+                          )}
+
+                          {chunk.involvedEntityIds &&
+                            chunk.involvedEntityIds.length > 0 && (
+                              <div className="flex items-center gap-1.5 ml-auto text-[10px] font-mono text-muted-foreground">
+                                <span>Entities:</span>
+                                {chunk.involvedEntityIds.map(
+                                  (entId: string) => (
+                                    <Badge
+                                      key={entId}
+                                      variant="outline"
+                                      className="text-[10px] px-1 py-0 border-border/20 font-mono"
+                                    >
+                                      {entId}
+                                    </Badge>
+                                  ),
+                                )}
+                              </div>
+                            )}
+                        </div>
+                      </div>
+                    ),
+                  )}
+                </div>
+              )}
+            </div>
+          )}
+
+          {activeTab === "prompt" && entry.rawPrompt && (
+            <PromptAnalyzer
+              components={
+                entry.rawPrompt.components &&
+                entry.rawPrompt.components.length > 0
+                  ? entry.rawPrompt.components
+                  : [
+                      {
+                        label: "System Prompt",
+                        type: "system",
+                        content: entry.rawPrompt.systemPrompt || "",
+                      },
+                      {
+                        label: "User Context",
+                        type: "world",
+                        content: entry.rawPrompt.userContext || "",
+                      },
+                    ]
+              }
+              inputTokens={entry.usage?.inputTokens || 0}
+              maxContext={
+                entry.usage?.maxContext !== undefined
+                  ? entry.usage.maxContext
+                  : 32768
+              }
+              modelName={entry.usage?.modelName}
+              providerInstanceName={entry.usage?.providerInstanceName}
+              outputLabel="LLM Output (Promoted Memory Chunks)"
+              outputText={
+                handoffResult
+                  ? JSON.stringify(handoffResult, null, 2)
+                  : undefined
+              }
+              outputTokens={entry.usage?.outputTokens}
+            />
+          )}
+
+          {activeTab === "output" && (
+            <div className="space-y-2 h-full flex flex-col">
+              <h4 className="text-xs font-semibold uppercase tracking-wider text-muted-foreground font-mono">
+                Raw JSON Output
+              </h4>
+              <pre className="p-3 bg-muted rounded text-xs font-mono whitespace-pre-wrap text-foreground border flex-1 overflow-y-auto max-h-125">
+                {handoffResult
+                  ? JSON.stringify(handoffResult, null, 2)
+                  : "No JSON Output recorded."}
+              </pre>
+            </div>
+          )}
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

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

@@ -0,0 +1,188 @@
+"use client";
+
+import * as React from "react";
+import { useRouter } from "next/navigation";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import { Button } from "@/components/ui/button";
+import { Textarea } from "@/components/ui/textarea";
+import { formatSimDate, formatSimTimeHM, getClockIcon } from "@/lib/utils";
+
+interface InteractDockProps {
+  snapshot: SimSnapshot;
+  loading: boolean;
+  playerInput: string;
+  setPlayerInput: (value: string) => void;
+  onSubmitAction: (e: React.FormEvent<HTMLFormElement>) => void;
+  onPauseRequested: () => void;
+  onResumeRequested: () => void;
+  onStopRequested: () => void;
+}
+
+export function InteractDock({
+  snapshot,
+  loading,
+  playerInput,
+  setPlayerInput,
+  onSubmitAction,
+  onPauseRequested,
+  onResumeRequested,
+  onStopRequested,
+}: InteractDockProps) {
+  const router = useRouter();
+
+  return (
+    <footer className="sticky bottom-0 px-8 py-4 z-20 shrink-0 bg-background/70 backdrop-blur-md border-t border-border/10">
+      <div className="max-w-200 mx-auto relative">
+        {snapshot.status === "running" ||
+        snapshot.status === "waiting_player" ? (
+          <div className="border border-border/30 bg-card/85 p-4 shadow-sm backdrop-blur-sm relative z-10">
+            {snapshot.status === "waiting_player" && snapshot.waitingEntity && (
+              <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-37.5 overflow-y-auto mt-2 font-mono">
+                  {snapshot.waitingEntity.userContext}
+                </pre>
+              </details>
+            )}
+
+            <div className="flex flex-col gap-3">
+              <div className="flex justify-between items-center gap-2">
+                {snapshot.worldTime ? (
+                  <span className="text-base font-mono text-muted-foreground font-medium">
+                    <img
+                      src="/calendar_logo.png"
+                      alt="Date"
+                      className="w-7 h-7 inline-block align-middle mr-1 opacity-70"
+                    />
+                    {formatSimDate(snapshot.worldTime)}
+                    <img
+                      src={getClockIcon(snapshot.worldTime)}
+                      alt="Time"
+                      className="w-7 h-7 inline-block align-middle ml-2 mr-1 opacity-70"
+                    />
+                    {formatSimTimeHM(snapshot.worldTime)}
+                    {snapshot.currentLocation && (
+                      <>
+                        <img
+                          src="/map_pointer_icon.png"
+                          alt="Location"
+                          className="w-7 h-7 inline-block align-middle ml-2 mr-1 opacity-70"
+                        />
+                        {snapshot.currentLocation}
+                      </>
+                    )}
+                  </span>
+                ) : (
+                  <div />
+                )}
+                <div className="flex gap-2">
+                  {loading ? (
+                    <Button
+                      type="button"
+                      variant="secondary"
+                      size="sm"
+                      onClick={onPauseRequested}
+                    >
+                      Pause
+                    </Button>
+                  ) : (
+                    snapshot.status === "running" && (
+                      <Button
+                        type="button"
+                        variant="secondary"
+                        size="sm"
+                        onClick={onResumeRequested}
+                      >
+                        Resume
+                      </Button>
+                    )
+                  )}
+                  <Button
+                    type="button"
+                    variant="destructive"
+                    size="sm"
+                    onClick={onStopRequested}
+                  >
+                    Stop
+                  </Button>
+                </div>
+              </div>
+
+              {snapshot.status === "waiting_player" &&
+                snapshot.waitingEntity && (
+                  <form
+                    onSubmit={onSubmitAction}
+                    className="flex flex-row gap-2 items-stretch"
+                  >
+                    <Textarea
+                      value={playerInput}
+                      onChange={(e) => setPlayerInput(e.target.value)}
+                      placeholder="Describe what your character does, says, or thinks..."
+                      rows={3}
+                      className="flex-1 min-h-26"
+                      disabled={loading}
+                    />
+                    <Button
+                      type="submit"
+                      disabled={loading || !playerInput.trim()}
+                      className="w-32 shrink-0 self-stretch"
+                    >
+                      {loading ? "Processing..." : "Submit"}
+                    </Button>
+                  </form>
+                )}
+            </div>
+          </div>
+        ) : snapshot.status === "done" || snapshot.status === "error" ? (
+          <div className="flex justify-between items-center bg-card/85 border border-border/30 p-4 shadow-sm backdrop-blur-sm">
+            <div className="flex flex-col gap-1">
+              <span className="text-sm font-mono text-muted-foreground">
+                {snapshot.status === "error"
+                  ? "Simulation finished with an error."
+                  : "Simulation complete."}
+              </span>
+              {snapshot.worldTime && (
+                <div className="flex items-center gap-2 text-base font-mono text-muted-foreground">
+                  <img
+                    src="/calendar_logo.png"
+                    alt="Date"
+                    className="w-7 h-7 opacity-70"
+                  />
+                  <span>{formatSimDate(snapshot.worldTime)}</span>
+                  <img
+                    src={getClockIcon(snapshot.worldTime)}
+                    alt="Time"
+                    className="w-7 h-7 opacity-70"
+                  />
+                  <span>{formatSimTimeHM(snapshot.worldTime)}</span>
+                  {snapshot.currentLocation && (
+                    <>
+                      <img
+                        src="/map_pointer_icon.png"
+                        alt="Location"
+                        className="w-7 h-7 opacity-70"
+                      />
+                      <span>{snapshot.currentLocation}</span>
+                    </>
+                  )}
+                </div>
+              )}
+            </div>
+            <Button
+              onClick={() => {
+                router.push("/");
+              }}
+              size="sm"
+            >
+              {snapshot.status === "error"
+                ? "Back to Dashboard"
+                : "New Simulation"}
+            </Button>
+          </div>
+        ) : null}
+      </div>
+    </footer>
+  );
+}

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

@@ -0,0 +1,275 @@
+"use client";
+
+import * as React from "react";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import { Button } from "@/components/ui/button";
+import { Spinner } from "@/components/ui/spinner";
+import { cn } from "@/lib/utils";
+import { hydrate } from "@omnia/voice";
+import { Brain, PersonStanding, Speech } from "lucide-react";
+import {
+  Alert,
+  AlertAction,
+  AlertDescription,
+  AlertTitle,
+} from "@/components/ui/alert";
+import { InteractDock } from "./InteractDock";
+
+function IntentTag({
+  intent,
+  playerAliases,
+  playerId,
+  entities,
+}: {
+  intent: SimSnapshot["log"][number]["intents"][number];
+  playerAliases: Record<string, string>;
+  playerId: string;
+  entities: SimSnapshot["entities"];
+}) {
+  const icons: Record<string, React.ReactNode> = {
+    monologue: <Brain className="size-4" />,
+    thought: <Brain className="size-4" />,
+    dialogue: <Speech className="size-4" />,
+    action: <PersonStanding className="size-4" />,
+  };
+
+  const icon = icons[intent.type] || null;
+
+  const viewerAliasesMap = new Map<string, string>();
+  if (entities) {
+    for (const ent of entities) {
+      viewerAliasesMap.set(ent.id, ent.name || ent.id);
+    }
+  }
+  if (playerAliases) {
+    for (const [targetId, alias] of Object.entries(playerAliases)) {
+      viewerAliasesMap.set(targetId, alias);
+    }
+  }
+
+  const viewerEntityMock = {
+    id: playerId || "",
+    aliases: viewerAliasesMap,
+  };
+
+  const textToDisplay = hydrate(
+    intent.content,
+    viewerEntityMock as unknown as Parameters<typeof hydrate>[1],
+  );
+
+  const modifiersStr =
+    intent.modifiers && intent.modifiers.length > 0 ? (
+      <span className="italic opacity-80 text-muted-foreground ml-1">
+        ({intent.modifiers.join(", ")})
+      </span>
+    ) : null;
+
+  const invalidActionReason =
+    intent.type === "action" && !intent.isValid && intent.reason
+      ? ` (${intent.reason})`
+      : "";
+
+  const invalidActionClassName =
+    intent.type === "action" && !intent.isValid ? " text-destructive" : "";
+
+  return (
+    <>
+      <span className="text-sm text-muted-foreground inline-flex items-start gap-1">
+        <span className="mt-0.5 inline-flex shrink-0 items-center justify-center">
+          {icon}
+        </span>
+        <span className={invalidActionClassName}>
+          &ldquo;{textToDisplay}&rdquo;{modifiersStr}
+          {invalidActionReason}
+          {intent.minutesToAdvance ? ` [+${intent.minutesToAdvance}min]` : ""}
+        </span>
+      </span>
+      <br />
+    </>
+  );
+}
+
+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,
+  playerAliases,
+  playerId,
+  entities,
+}: {
+  entry: SimSnapshot["log"][number];
+  onShowPrompt: (entry: SimSnapshot["log"][number]) => void;
+  isPlayerCard: boolean;
+  playerAliases: Record<string, string>;
+  playerId: string;
+  entities: SimSnapshot["entities"];
+}) {
+  const showMenu = !!(entry.rawPrompt || entry.decoderPrompt);
+
+  return (
+    <div className={cn("mb-2")}>
+      <div
+        className={cn(
+          "border p-4 shadow-sm",
+          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>
+      <div className={cn("mt-3 ms-3")}>
+        {entry.intents.map((intent, i) => (
+          <IntentTag
+            key={i}
+            intent={intent}
+            playerAliases={playerAliases}
+            playerId={playerId}
+            entities={entities}
+          />
+        ))}
+      </div>
+    </div>
+  );
+}
+
+interface InteractViewProps {
+  snapshot: SimSnapshot;
+  loading: boolean;
+  statusText: string;
+  playerInput: string;
+  setPlayerInput: (value: string) => void;
+  onSubmitAction: (e: React.FormEvent<HTMLFormElement>) => void;
+  onShowPrompt: (entry: SimSnapshot["log"][number]) => void;
+  onShowHandoff: (entry: SimSnapshot["log"][number]) => void;
+  logEndRef: React.RefObject<HTMLDivElement | null>;
+  onPauseRequested: () => void;
+  onResumeRequested: () => void;
+  onStopRequested: () => void;
+}
+
+export function InteractView({
+  snapshot,
+  loading,
+  statusText,
+  playerInput,
+  setPlayerInput,
+  onSubmitAction,
+  onShowPrompt,
+  onShowHandoff,
+  logEndRef,
+  onPauseRequested,
+  onResumeRequested,
+  onStopRequested,
+}: InteractViewProps) {
+  const playerEntity = snapshot.entities.find((e) => e.isPlayer);
+
+  return (
+    <>
+      {/* Scrollable Center Viewport */}
+      <main className="flex-1 overflow-y-auto px-8 py-6">
+        <div className="flex flex-col gap-4 max-w-200 mx-auto pb-44 md:pb-52">
+          {snapshot.log.map((entry, i) => {
+            if (entry.isHandoff) {
+              return (
+                <Alert
+                  key={i}
+                  className="max-w-md border-dashed bg-secondary/10"
+                >
+                  <div className="flex-1">
+                    <AlertTitle>
+                      Handoff triggered for {entry.entityName}
+                    </AlertTitle>
+                    <AlertDescription>
+                      Memories were transferred from Cognitive Buffer to Memory
+                      Ledger
+                    </AlertDescription>
+                  </div>
+                  <AlertAction>
+                    <Button
+                      size="xs"
+                      variant="default"
+                      onClick={() => onShowHandoff(entry)}
+                    >
+                      View Details
+                    </Button>
+                  </AlertAction>
+                </Alert>
+              );
+            }
+            const playerAliases = playerEntity?.aliases || {};
+            const playerId = playerEntity?.id || "";
+
+            return (
+              <LogEntryCard
+                key={i}
+                entry={entry}
+                onShowPrompt={onShowPrompt}
+                isPlayerCard={entry.entityId === playerEntity?.id}
+                playerAliases={playerAliases}
+                playerId={playerId}
+                entities={snapshot.entities}
+              />
+            );
+          })}
+          {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>
+      </main>
+
+      <InteractDock
+        snapshot={snapshot}
+        loading={loading}
+        playerInput={playerInput}
+        setPlayerInput={setPlayerInput}
+        onSubmitAction={onSubmitAction}
+        onPauseRequested={onPauseRequested}
+        onResumeRequested={onResumeRequested}
+        onStopRequested={onStopRequested}
+      />
+    </>
+  );
+}

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

@@ -0,0 +1,176 @@
+"use client";
+
+import * as React from "react";
+import { useState } from "react";
+import type { SimSnapshot } from "@/lib/simulation-types";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { renameSimulation } from "@/app/actions";
+
+interface ManageViewProps {
+  snapshot: SimSnapshot;
+  onRename: (updated: SimSnapshot) => void;
+}
+
+export function ManageView({ snapshot, onRename }: ManageViewProps) {
+  const [isEditingName, setIsEditingName] = useState(false);
+  const [editedName, setEditedName] = useState(snapshot.scenarioName);
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState("");
+
+  React.useEffect(() => {
+    setEditedName(snapshot.scenarioName);
+  }, [snapshot.scenarioName]);
+
+  const handleSaveName = async () => {
+    if (!editedName.trim()) return;
+    setSaving(true);
+    setError("");
+    try {
+      const res = await renameSimulation(snapshot.id, editedName.trim());
+      if (res.ok) {
+        onRename(res.snapshot);
+        setIsEditingName(false);
+      } else {
+        setError(res.error);
+      }
+    } catch (err) {
+      setError(
+        err instanceof Error ? err.message : "Failed to rename simulation",
+      );
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  return (
+    <main className="flex-1 overflow-y-auto px-8 py-6">
+      <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>
+          {error && (
+            <div className="mb-4 border border-destructive bg-destructive/10 px-3 py-2 text-xs text-destructive">
+              {error}
+            </div>
+          )}
+          <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 md:col-span-2">
+              <span className="text-muted-foreground text-xs uppercase tracking-wider">
+                Simulation Name
+              </span>
+              {isEditingName ? (
+                <div className="flex items-center gap-2 mt-1">
+                  <Input
+                    value={editedName}
+                    onChange={(e) => setEditedName(e.target.value)}
+                    className="h-8 max-w-sm font-sans"
+                    disabled={saving}
+                  />
+                  <Button size="sm" onClick={handleSaveName} disabled={saving}>
+                    {saving ? "Saving..." : "Save"}
+                  </Button>
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    onClick={() => setIsEditingName(false)}
+                    disabled={saving}
+                  >
+                    Cancel
+                  </Button>
+                </div>
+              ) : (
+                <div className="flex items-center gap-3">
+                  <span className="text-foreground font-bold text-base font-head">
+                    {snapshot.scenarioName}
+                  </span>
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    className="h-6 text-[10px]"
+                    onClick={() => {
+                      setEditedName(snapshot.scenarioName);
+                      setIsEditingName(true);
+                    }}
+                  >
+                    Rename
+                  </Button>
+                </div>
+              )}
+            </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">
+                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 font-mono">
+                {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 font-mono">
+                {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 font-mono">
+                {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>
+  );
+}

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

@@ -1,145 +1,74 @@
 "use client";
 
 import { useCallback, useEffect, useRef, useState } from "react";
+import { useRouter, useSearchParams } from "next/navigation";
 import {
-  startSimulation,
   stepSimulation,
   submitPlayerAction,
-  listSavedSimulations,
   resumeSimulation,
-  getConfigStatus,
-  getScenarioEntities,
-  deleteSimulation,
-  listProviderInstances,
-} from "@/app/play/actions";
+} from "@/app/actions";
 import type { SimSnapshot } from "@/lib/simulation-types";
-import type { ModelProviderInstance } from "@omnia/llm";
 import { Button } from "@/components/ui/button";
-import { Textarea } from "@/components/ui/textarea";
 import { Spinner } from "@/components/ui/spinner";
 import { PromptModal } from "./PromptModal";
+import { HandoffModal } from "./HandoffModal";
+import { InteractView } from "./InteractView";
+import { ManageView } from "./ManageView";
 import { cn } from "@/lib/utils";
+import { ChevronLeft } from "lucide-react";
 import {
-  Select,
-  SelectContent,
-  SelectGroup,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from "@/components/ui/select";
-
-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;
+  SidebarProvider,
+  Sidebar,
+  SidebarContent,
+  SidebarTrigger,
+  useSidebar,
+} from "@/components/ui/sidebar";
 
+function MobileSidebarClose() {
+  const { isMobile, setOpenMobile } = useSidebar();
+  if (!isMobile) return 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 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(false);
+  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 [selectedEntryForModal, setSelectedEntryForModal] = useState<
+    SimSnapshot["log"][number] | null
+  >(null);
+  const [selectedHandoffForModal, setSelectedHandoffForModal] = 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(
@@ -152,204 +81,88 @@ export function PlayView() {
     scrollToBottom();
   }, [snapshot, scrollToBottom]);
 
-  const runSteps = useCallback(
-    async (id: string) => {
-      if (steppingRef.current) return;
-      steppingRef.current = true;
-      setLoading(true);
-      setError("");
-      pauseRequestedRef.current = false;
+  const runSteps = useCallback(async (id: string) => {
+    if (steppingRef.current) return;
+    steppingRef.current = true;
+    setLoading(true);
+    setError("");
+    pauseRequestedRef.current = false;
 
-      try {
-        let current = snapshot;
-        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"}...`,
-          );
+    try {
+      let current = snapshotRef.current;
+      while (true) {
+        if (pauseRequestedRef.current) {
+          break;
         }
-      } catch (err) {
-        setError(
-          err instanceof Error
-            ? err.message
-            : "Failed during simulation step.",
+        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"}...`,
         );
-      } finally {
-        steppingRef.current = false;
-        setLoading(false);
-        setStatusText("");
-      }
-    },
-    [snapshot],
-  );
-
-  const [savedSessions, setSavedSessions] = useState<SimSnapshot[]>([]);
-
-  const loadSavedSessions = useCallback(async () => {
-    try {
-      const res = await listSavedSimulations();
-      if (res.ok) {
-        setSavedSessions(res.sessions);
-      }
-    } catch {
-      // ignore
-    }
-  }, []);
-
-  useEffect(() => {
-    if (!snapshot) {
-      loadSavedSessions();
-    }
-  }, [snapshot, loadSavedSessions]);
-
-  const handleResume = async (id: string) => {
-    setLoading(true);
-    setError("");
-    try {
-      const res = await resumeSimulation(id);
-      if (!res.ok) {
-        setError(res.error);
-        setLoading(false);
-        return;
-      }
-      setSnapshot(res.snapshot);
-      if (res.snapshot.status === "running") {
-        await runSteps(res.snapshot.id);
-      } else {
-        setLoading(false);
-      }
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Failed to resume session.");
-      setLoading(false);
-    }
-  };
-
-  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 [scenarios, setScenarios] = useState<{ path: string; name: string }[]>([]);
-  const [selectedScenario, setSelectedScenario] = useState("");
-  const [availableEntities, setAvailableEntities] = useState<{ id: string; name: string }[]>([]);
-  const [selectedEntity, setSelectedEntity] = useState("");
-
-  const [providerInstances, setProviderInstances] = useState<ModelProviderInstance[]>([]);
-
-  // Load scenarios and provider instances on mount
-  useEffect(() => {
-    async function loadScenariosAndProviders() {
-      try {
-        const configStatus = await getConfigStatus();
-        setScenarios(configStatus.availableScenarios);
-        if (configStatus.availableScenarios.length > 0) {
-          setSelectedScenario(configStatus.availableScenarios[0].path);
-        }
-      } catch {
-        // ignore
-      }
-      try {
-        const providersList = await listProviderInstances();
-        setProviderInstances(providersList);
-      } catch {
-        // ignore
-      }
-    }
-    loadScenariosAndProviders();
-  }, [snapshot]);
-
-  // Fetch entities when selectedScenario changes
-  useEffect(() => {
-    if (!selectedScenario) {
-      setAvailableEntities([]);
-      setSelectedEntity("");
-      return;
-    }
-    async function loadEntities() {
-      try {
-        const res = await getScenarioEntities(selectedScenario);
-        if (res.ok) {
-          setAvailableEntities(res.entities);
-          if (res.entities.length > 0) {
-            setSelectedEntity(res.entities[0].id);
-          } else {
-            setSelectedEntity("");
-          }
-        }
-      } catch {
-        // ignore
-      }
-    }
-    loadEntities();
-  }, [selectedScenario]);
-
-  const handleStart = async (e: React.FormEvent<HTMLFormElement>) => {
-    e.preventDefault();
-    setLoading(true);
-    setError("");
-
-    try {
-      const form = new FormData(e.currentTarget);
-      const result = await startSimulation({
-        scenario: (form.get("scenario") as string) || undefined,
-        playEntity: (form.get("playEntity") as string) || undefined,
-      });
-
-      if (!result.ok) {
-        setError(result.error);
-        setLoading(false);
-        return;
-      }
-
-      setSnapshot(result.snapshot);
-
-      if (result.snapshot.status === "running") {
-        await runSteps(result.snapshot.id);
-      } else {
-        setLoading(false);
       }
     } catch (err) {
       setError(
-        err instanceof Error
-          ? err.message
-          : "Failed to start simulation.",
+        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();
@@ -378,260 +191,202 @@ export function PlayView() {
         await runSteps(result.snapshot.id);
       }
     } catch (err) {
-      setError(
-        err instanceof Error
-          ? err.message
-          : "Failed to submit action.",
-      );
+      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 "done":
-        return "Simulation complete.";
       case "error":
         return `Error: ${snapshot.error}`;
       default:
-        return "Simulation running...";
+        return null;
     }
   };
 
-  return (
-    <div className="mx-auto max-w-[800px] px-10 py-12">
-      <h1 className="text-headline-lg text-primary mb-6 animate-fade-in">Omnia Play</h1>
+  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();
+    }
+  };
 
-      {!snapshot && (
-        <div className="grid grid-cols-1 md:grid-cols-[1.2fr_1fr] gap-8 mt-4">
-          <div className="border border-border/30 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
-            <h2 className="text-headline-md text-foreground mb-5 pb-2 border-b border-dotted border-border/20">Start New Simulation</h2>
-            <form onSubmit={handleStart} className="flex flex-col gap-4">
-              {error && (
-                <div className="rounded border-2 border-destructive/30 bg-destructive/10 px-3 py-2 text-sm text-destructive">
-                  {error}
-                </div>
-              )}
-              <div className="flex flex-col gap-1">
-                <label htmlFor="scenario" className="text-sm font-medium">Scenario</label>
-                <Select
-                  value={selectedScenario}
-                  onValueChange={(val) => setSelectedScenario(val || "")}
-                >
-                  <SelectTrigger className="w-full">
-                    <SelectValue />
-                  </SelectTrigger>
-                  <SelectContent>
-                    <SelectGroup>
-                      {scenarios.map((s) => (
-                        <SelectItem key={s.path} value={s.path}>
-                          {s.name}
-                        </SelectItem>
-                      ))}
-                    </SelectGroup>
-                  </SelectContent>
-                </Select>
-              </div>
-              <div className="flex flex-col gap-1">
-                <label htmlFor="playEntity" className="text-sm font-medium">
-                  Play as (Entity)
-                </label>
-                <Select
-                  value={selectedEntity}
-                  onValueChange={(val) => setSelectedEntity(val || "")}
-                  disabled={availableEntities.length === 0}
-                >
-                  <SelectTrigger className="w-full">
-                    <SelectValue placeholder="-- Spectator (Observer) --" />
-                  </SelectTrigger>
-                  <SelectContent>
-                    <SelectGroup>
-                      <SelectItem value="">-- Spectator (Observer) --</SelectItem>
-                      {availableEntities.map((ent) => (
-                        <SelectItem key={ent.id} value={ent.id}>
-                          {ent.name}
-                        </SelectItem>
-                      ))}
-                    </SelectGroup>
-                  </SelectContent>
-                </Select>
-              </div>
+  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>
+    );
+  }
 
-              <Button type="submit" disabled={loading || providerInstances.length === 0}>
-                {loading ? "Starting..." : "Start Simulation"}
-              </Button>
-            </form>
-          </div>
-
-          <div className="border border-border/30 bg-card p-6 shadow-[2px_2px_0_0_var(--border)]">
-            <h2 className="text-headline-md text-foreground mb-5 pb-2 border-b border-dotted border-border/20">Resume Simulation</h2>
-            {savedSessions.length === 0 ? (
-              <p className="text-sm italic text-muted-foreground">No saved sessions found. Start a new one!</p>
-            ) : (
-              <div className="flex flex-col gap-3 max-h-[400px] overflow-y-auto pr-1">
-                {savedSessions.map((s) => (
-                  <div key={s.id} className="border border-border/30 bg-secondary/40 p-3 flex justify-between items-center gap-4 shadow-[1px_1px_0_0_var(--border)]">
-                    <div className="flex flex-col gap-0.5 text-sm">
-                      <strong className="text-sm text-foreground">{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">
-                        Session ID: <code className="font-mono text-xs">{s.id}</code>
-                      </span>
-                    </div>
-                    <div className="flex gap-2 items-center">
-                      <Button size="sm" onClick={() => handleResume(s.id)} disabled={loading || providerInstances.length === 0}>
-                        Resume
-                      </Button>
-                      <Button
-                        size="sm"
-                        variant="destructive"
-                        onClick={(e) => handleDelete(s.id, e)}
-                        disabled={loading}
-                        title="Delete Session"
-                      >
-                        Delete
-                      </Button>
-                    </div>
-                  </div>
-                ))}
-              </div>
-            )}
-          </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>
+    );
+  }
 
-      {snapshot && (
-        <>
-          <div className="mb-4">
-            <div className="flex justify-between items-center mb-1">
-              <h2 className="text-headline-md text-primary">{snapshot.scenarioName}</h2>
-              {snapshot.status !== "done" && snapshot.status !== "error" && (
-                <div className="flex gap-2">
-                  {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>
-                    )
+  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",
                   )}
-                  <Button
-                    variant="destructive"
-                    size="sm"
-                    onClick={() => {
-                      setSnapshot(null);
-                      setError("");
-                    }}
-                  >
-                    Stop
-                  </Button>
-                </div>
-              )}
-            </div>
-            <p className="text-sm text-muted-foreground">{snapshot.scenarioDescription}</p>
-            <p className="text-sm font-medium text-primary mt-1">
-              {loading && "⏳ "}
-              {statusMessage()}
-            </p>
-          </div>
-
-          <div className="flex flex-col gap-4 mb-6 max-h-[55vh] overflow-y-auto border border-border/20 bg-secondary/30 p-4 shadow-[inset_1px_1px_4px_rgba(0,0,0,0.05)]">
-            {(() => {
-              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>
-
-          {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">
-                  <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-[200px] 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>
+                  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>
-          )}
 
-          {(snapshot.status === "done" || snapshot.status === "error") && (
-            <Button
-              onClick={() => {
-                setSnapshot(null);
-                setError("");
+            <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>
+            </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>
+
+          {activeTab === "interact" ? (
+            <InteractView
+              snapshot={snapshot}
+              loading={loading}
+              statusText={statusText}
+              playerInput={playerInput}
+              setPlayerInput={setPlayerInput}
+              onSubmitAction={handleSubmitAction}
+              onShowPrompt={setSelectedEntryForModal}
+              onShowHandoff={setSelectedHandoffForModal}
+              logEndRef={logEndRef}
+              onPauseRequested={() => {
+                pauseRequestedRef.current = true;
+              }}
+              onResumeRequested={() => runSteps(snapshot.id)}
+              onStopRequested={() => {
+                pauseRequestedRef.current = true;
+                router.push("/");
               }}
-              className="mt-4"
-            >
-              {snapshot.status === "error" ? "Try Again" : "New Simulation"}
-            </Button>
-          )}
-
-          {error && !loading && (
-            <div className="border border-destructive bg-destructive/10 px-3 py-2 text-sm text-destructive mt-4">
-              {error}
-            </div>
-          )}
-
-          {selectedEntryForModal && (
-            <PromptModal
-              entry={selectedEntryForModal}
-              onClose={() => setSelectedEntryForModal(null)}
             />
+          ) : (
+            <ManageView snapshot={snapshot} onRename={setSnapshot} />
           )}
-        </>
-      )}
-    </div>
+        </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)}
+          />
+        )}
+
+        {selectedHandoffForModal && (
+          <HandoffModal
+            entry={selectedHandoffForModal}
+            onClose={() => setSelectedHandoffForModal(null)}
+          />
+        )}
+      </div>
+    </SidebarProvider>
   );
 }

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

@@ -0,0 +1,177 @@
+"use client";
+
+import {
+  Accordion,
+  AccordionContent,
+  AccordionItem,
+  AccordionTrigger,
+} from "@/components/ui/accordion";
+import type { PromptComponent } from "@/lib/simulation-types";
+
+interface PromptAnalyzerProps {
+  components: PromptComponent[];
+  inputTokens: number;
+  maxContext?: number;
+  modelName?: string;
+  providerInstanceName?: string;
+  outputLabel?: string;
+  outputText?: string;
+  outputTokens?: number;
+}
+
+export function PromptAnalyzer({
+  components,
+  inputTokens,
+  maxContext = 32768,
+  modelName,
+  providerInstanceName,
+  outputLabel = "LLM Output",
+  outputText,
+  outputTokens,
+}: PromptAnalyzerProps) {
+  const totalLen = components.reduce((sum, s) => sum + s.content.length, 0);
+
+  if (totalLen === 0) {
+    return (
+      <div className="text-sm italic text-muted-foreground">
+        No prompt context recorded.
+      </div>
+    );
+  }
+
+  const sections = components.map((s) => {
+    const pct = totalLen > 0 ? (s.content.length / totalLen) * 100 : 0;
+    return {
+      ...s,
+      pct,
+      tokens: Math.round((s.content.length / totalLen) * inputTokens),
+    };
+  });
+
+  const usagePctOfContext =
+    maxContext > 0 ? (inputTokens / maxContext) * 100 : 0;
+  const isAbsolute = maxContext > 0 && usagePctOfContext >= 20;
+
+  const legentColors = [
+    "bg-blue-500",
+    "bg-emerald-500",
+    "bg-purple-500",
+    "bg-orange-500",
+    "bg-pink-500",
+    "bg-amber-500",
+    "bg-teal-500",
+    "bg-cyan-500",
+    "bg-indigo-500",
+    "bg-violet-500",
+    "bg-rose-500",
+    "bg-sky-500",
+    "bg-lime-500",
+    "bg-fuchsia-500",
+    "bg-red-500",
+  ];
+
+  const getColorClass = (index: number) => {
+    return legentColors[index % legentColors.length];
+  };
+
+  return (
+    <div className="flex flex-col gap-4">
+      {/* Provider Details */}
+      {(providerInstanceName || modelName) && (
+        <div className="rounded border-2 bg-muted/50 px-3 py-2 text-sm text-muted-foreground">
+          <strong>LLM Instance:</strong>{" "}
+          <span>{providerInstanceName || "Default"}</span>
+          {modelName && <span> ({modelName})</span>}
+        </div>
+      )}
+
+      {/* Progress Bar & Breakdown */}
+      <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>{inputTokens}</strong>
+            {maxContext > 0 ? (
+              <span>
+                {" "}
+                / {maxContext} ({usagePctOfContext.toFixed(1)}% used)
+              </span>
+            ) : (
+              <span> (infinite context)</span>
+            )}
+          </span>
+        </div>
+
+        {/* Token Bar */}
+        <div className="flex h-6 w-full rounded border overflow-hidden bg-muted shadow-inner mb-2">
+          {sections.map((item, idx) => {
+            const widthPct = isAbsolute
+              ? item.pct * (inputTokens / maxContext)
+              : item.pct;
+            return (
+              <div
+                key={idx}
+                className={`h-full transition-all duration-300 ${getColorClass(idx)}`}
+                style={{ width: `${widthPct}%` }}
+                title={`${item.label}: ${item.tokens} tokens (${item.pct.toFixed(1)}%)`}
+              />
+            );
+          })}
+          {isAbsolute && (
+            <div
+              className="bg-white h-full"
+              style={{ width: `${100 - usagePctOfContext}%` }}
+              title={`Available: ${maxContext - inputTokens} tokens (${(100 - usagePctOfContext).toFixed(1)}% remaining)`}
+            />
+          )}
+        </div>
+
+        {/* Accordion Components */}
+        <Accordion type="multiple" className="w-full">
+          {sections.map((item, idx) => {
+            return (
+              <AccordionItem key={idx} value={String(idx)}>
+                <AccordionTrigger className="text-sm py-2.5 hover:no-underline">
+                  <div className="flex items-center gap-2">
+                    <span
+                      className={`inline-block w-2.5 h-2.5 rounded-sm ${getColorClass(idx)}`}
+                    />
+                    <span>{item.label}:</span>
+                    <span className="text-muted-foreground font-normal">
+                      <strong>{item.tokens}</strong> tokens (
+                      {item.pct.toFixed(0)}%)
+                    </span>
+                  </div>
+                </AccordionTrigger>
+                <AccordionContent>
+                  <pre className="m-0 p-3 bg-muted rounded text-xs font-mono whitespace-pre-wrap text-foreground border max-h-75 overflow-y-auto">
+                    {item.content}
+                  </pre>
+                </AccordionContent>
+              </AccordionItem>
+            );
+          })}
+        </Accordion>
+      </div>
+
+      {/* Output Section */}
+      {outputText && (
+        <div>
+          <div className="flex justify-between items-center text-xs text-muted-foreground mb-2 font-mono">
+            <span className="font-semibold">{outputLabel}</span>
+            {outputTokens !== undefined && (
+              <span>
+                Total Output Tokens: <strong>{outputTokens}</strong>
+              </span>
+            )}
+          </div>
+          <div className="rounded border-2">
+            <pre className="m-0 p-3 bg-muted text-xs font-mono whitespace-pre-wrap text-foreground max-h-62.5 overflow-y-auto">
+              {outputText}
+            </pre>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

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

@@ -1,20 +1,16 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import type { SimSnapshot } from "@/lib/simulation-types";
+import type { SimSnapshot, PromptBreakdown } from "@/lib/simulation-types";
 import {
   Dialog,
   DialogContent,
   DialogHeader,
   DialogTitle,
 } from "@/components/ui/dialog";
-import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import {
-  Accordion,
-  AccordionItem,
-  AccordionTrigger,
-  AccordionContent,
-} from "@/components/ui/accordion";
+
+import { PromptSwitcher } from "@/components/play/PromptSwitcher";
+import { PromptAnalyzer } from "@/components/play/PromptAnalyzer";
 
 interface PromptModalProps {
   entry: SimSnapshot["log"][number];
@@ -22,98 +18,7 @@ interface PromptModalProps {
 }
 
 export function PromptModal({ entry, onClose }: PromptModalProps) {
-  const [activeTab, setActiveTab] = useState<"actor" | "decoder">("actor");
-
-  const parseActorPrompt = (systemPrompt: string, userContext: string, inputTokens: number) => {
-    const memoryHeader = "=== YOUR RECENT MEMORY ===";
-    const idx = userContext.indexOf(memoryHeader);
-
-    let worldStr = userContext;
-    let memStr = "";
-
-    if (idx !== -1) {
-      worldStr = userContext.substring(0, idx).trim();
-      memStr = userContext.substring(idx).trim();
-    }
-
-    const sysLen = systemPrompt.length;
-    const worldLen = worldStr.length;
-    const memLen = memStr.length;
-    const totalLen = sysLen + worldLen + memLen;
-
-    if (totalLen === 0) return null;
-
-    const sysPct = (sysLen / totalLen) * 100;
-    const worldPct = (worldLen / totalLen) * 100;
-    const memPct = (memLen / totalLen) * 100;
-
-    const sysTokens = Math.round((sysLen / totalLen) * inputTokens);
-    const worldTokens = Math.round((worldLen / totalLen) * inputTokens);
-    const memTokens = Math.max(0, inputTokens - sysTokens - worldTokens);
-
-    return [
-      { label: "System Prompt", pct: sysPct, relativePct: sysPct, tokens: sysTokens, type: "system", content: systemPrompt },
-      { label: "World Info", pct: worldPct, relativePct: worldPct, tokens: worldTokens, type: "world", content: worldStr },
-      { label: "Recent Memories", pct: memPct, relativePct: memPct, tokens: memTokens, type: "memories", content: memStr || "(No memories yet.)" },
-    ];
-  };
-
-  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;
+  const [activeTab, setActiveTab] = useState<string>("actor");
 
   useEffect(() => {
     if (!entry.rawPrompt && entry.decoderPrompt) {
@@ -121,203 +26,133 @@ export function PromptModal({ entry, onClose }: PromptModalProps) {
     }
   }, [entry]);
 
+  // Helper to resolve components with a fallback if none exist (for backwards-compatibility)
+  const getComponents = (
+    promptBreakdown: PromptBreakdown | null | undefined,
+    defaultType: "world" | "input",
+  ) => {
+    if (!promptBreakdown) return [];
+    if (promptBreakdown.components && promptBreakdown.components.length > 0) {
+      return promptBreakdown.components;
+    }
+    // Fallback: convert flat strings into components list
+    return [
+      {
+        label: "System Prompt",
+        type: "system" as const,
+        content: promptBreakdown.systemPrompt || "",
+      },
+      {
+        label: "User Context",
+        type: defaultType,
+        content: promptBreakdown.userContext || "",
+      },
+    ];
+  };
+
+  const actorComponents = getComponents(entry.rawPrompt, "world");
+  const decoderComponents = getComponents(entry.decoderPrompt, "input");
+
+  const isValidatorTab = activeTab.startsWith("validator-");
+  const validatorIndex = isValidatorTab
+    ? parseInt(activeTab.substring("validator-".length), 10)
+    : -1;
+  const validatorCall = isValidatorTab
+    ? entry.validatorCalls?.find((c) => c.intentIndex === validatorIndex)
+    : null;
+  const validatorComponents = validatorCall
+    ? getComponents(validatorCall.prompt, "world")
+    : [];
+
   return (
     <Dialog open onOpenChange={(open) => !open && onClose()}>
-      <DialogContent className="max-w-[750px] sm:max-w-[750px] max-h-[85vh] overflow-hidden flex flex-col p-0 gap-0">
-        <DialogHeader className="px-5 pt-4 pb-3 border-b">
-          <DialogTitle>Raw Prompts & Token Usage ({entry.entityName})</DialogTitle>
+      <DialogContent className="max-w-187.5 sm:max-w-187.5 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>
 
-        <Tabs value={activeTab} onValueChange={(v) => setActiveTab(v as "actor" | "decoder")}>
-          <TabsList className="w-full rounded-none border-b bg-muted/50 px-5">
-            <TabsTrigger value="actor" disabled={!entry.rawPrompt} className="flex-1">
-              Actor Prompt {entry.usage ? "📊" : ""}
-            </TabsTrigger>
-            <TabsTrigger value="decoder" disabled={!entry.decoderPrompt} className="flex-1">
-              Intent Decoder {entry.decoderUsage ? "📊" : ""}
-            </TabsTrigger>
-          </TabsList>
+        <PromptSwitcher
+          activeTab={activeTab}
+          onTabChange={setActiveTab}
+          hasActor={!!entry.rawPrompt}
+          hasDecoder={!!entry.decoderPrompt}
+          validatorCalls={
+            entry.validatorCalls?.map((c) => ({
+              intentIndex: c.intentIndex,
+              intentContent: c.intentContent,
+            })) || []
+          }
+        />
 
-          <div className="overflow-y-auto flex-1 p-5">
-            <TabsContent value="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>
-                  )}
+        <div className="overflow-y-auto flex-1 p-5">
+          {activeTab === "actor" && entry.rawPrompt && (
+            <PromptAnalyzer
+              components={actorComponents}
+              inputTokens={entry.usage?.inputTokens || 0}
+              maxContext={
+                entry.usage?.maxContext !== undefined
+                  ? entry.usage.maxContext
+                  : 32768
+              }
+              modelName={entry.usage?.modelName}
+              providerInstanceName={entry.usage?.providerInstanceName}
+              outputLabel="LLM Output (Narrative Prose)"
+              outputText={entry.narrativeProse}
+              outputTokens={entry.usage?.outputTokens}
+            />
+          )}
 
-                  {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 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 ${
-                                item.type === "system" ? "bg-blue-500" : item.type === "world" ? "bg-emerald-500" : "bg-amber-500"
-                              }`}
-                              style={{ width: `${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" defaultValue={["0"]}>
-                        {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" : "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 max-h-[250px] overflow-y-auto 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 max-h-[250px] overflow-y-auto text-foreground">
-                          {entry.narrativeProse}
-                        </pre>
-                      </div>
-                    </div>
-                  )}
-                </div>
+          {activeTab === "decoder" && entry.decoderPrompt && (
+            <PromptAnalyzer
+              components={decoderComponents}
+              inputTokens={entry.decoderUsage?.inputTokens || 0}
+              maxContext={
+                entry.decoderUsage?.maxContext !== undefined
+                  ? entry.decoderUsage.maxContext
+                  : 32768
+              }
+              modelName={entry.decoderUsage?.modelName}
+              providerInstanceName={entry.decoderUsage?.providerInstanceName}
+              outputLabel="LLM Output (Decoded Intent Sequence)"
+              outputText={JSON.stringify(
+                entry.decodedIntents || entry.intents,
+                null,
+                2,
               )}
-            </TabsContent>
+              outputTokens={entry.decoderUsage?.outputTokens}
+            />
+          )}
 
-            <TabsContent value="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>
-                  )}
+          {validatorCall && validatorCall.prompt && (
+            <PromptAnalyzer
+              components={validatorComponents}
+              inputTokens={validatorCall.usage?.inputTokens || 0}
+              maxContext={
+                validatorCall.usage?.maxContext !== undefined
+                  ? validatorCall.usage.maxContext
+                  : 32768
+              }
+              modelName={validatorCall.usage?.modelName}
+              providerInstanceName={validatorCall.usage?.providerInstanceName}
+              outputLabel={`LLM Output`}
+              outputText={JSON.stringify(validatorCall.response, null, 2)}
+              outputTokens={validatorCall.usage?.outputTokens}
+            />
+          )}
 
-                  {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 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 ${
-                                item.type === "system" ? "bg-blue-500" : item.type === "world" ? "bg-emerald-500" : "bg-amber-500"
-                              }`}
-                              style={{ width: `${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" defaultValue={["0"]}>
-                        {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" : "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 max-h-[250px] overflow-y-auto 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 max-h-[250px] overflow-y-auto text-foreground">
-                          {JSON.stringify(entry.intents, null, 2)}
-                        </pre>
-                      </div>
-                    </div>
-                  )}
-                </div>
-              )}
-            </TabsContent>
-          </div>
-        </Tabs>
+          {validatorCall && !validatorCall.prompt && (
+            <div className="flex flex-col items-center justify-center border border-dashed rounded-lg bg-muted/20 text-muted-foreground p-8 my-6">
+              <span className="text-sm font-semibold mb-2 text-foreground">
+                Bypassed LLM Validation
+              </span>
+              <p className="text-xs text-center text-muted-foreground max-w-md">
+                {validatorCall.response.reason}
+              </p>
+            </div>
+          )}
+        </div>
       </DialogContent>
     </Dialog>
   );

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

@@ -0,0 +1,79 @@
+"use client";
+
+interface PromptSwitcherProps {
+  activeTab: string;
+  onTabChange: (tab: string) => void;
+  hasActor: boolean;
+  hasDecoder: boolean;
+  validatorCalls?: { intentIndex: number; intentContent: string }[];
+}
+
+export function PromptSwitcher({
+  activeTab,
+  onTabChange,
+  hasActor,
+  hasDecoder,
+  validatorCalls = [],
+}: PromptSwitcherProps) {
+  return (
+    <div className="flex items-center justify-center gap-4 border-b bg-muted/40 px-6 py-5 overflow-x-auto">
+      {/* Primary Pipeline (Linear flow to the left) */}
+      <div className="flex items-center gap-3 shrink-0">
+        <button
+          onClick={() => onTabChange("actor")}
+          disabled={!hasActor}
+          className={`flex h-12 w-36 items-center justify-center border-2 text-xs font-semibold uppercase tracking-wider transition-all ${
+            activeTab === "actor"
+              ? "border-primary bg-primary text-primary-foreground shadow-sm"
+              : "border-border bg-card text-foreground hover:border-primary/50"
+          } disabled:cursor-not-allowed disabled:opacity-40 rounded`}
+        >
+          Actor Prompt
+        </button>
+
+        <span className="text-lg text-muted-foreground">→</span>
+
+        <button
+          onClick={() => onTabChange("decoder")}
+          disabled={!hasDecoder}
+          className={`flex h-12 w-36 items-center justify-center border-2 text-xs font-semibold uppercase tracking-wider transition-all ${
+            activeTab === "decoder"
+              ? "border-primary bg-primary text-primary-foreground shadow-sm"
+              : "border-border bg-card text-foreground hover:border-primary/50"
+          } disabled:cursor-not-allowed disabled:opacity-40 rounded`}
+        >
+          Intent Decoder
+        </button>
+      </div>
+
+      {/* Branching Validator Column to the right of Intent Decoder */}
+      {validatorCalls.length > 0 && (
+        <div className="flex items-center gap-3 shrink-0">
+          <span className="text-lg text-muted-foreground">→</span>
+
+          <div className="flex flex-col gap-2 pl-3">
+            <div className="flex flex-col gap-2">
+              {validatorCalls.map((call) => {
+                const tabKey = `validator-${call.intentIndex}`;
+                return (
+                  <button
+                    key={tabKey}
+                    onClick={() => onTabChange(tabKey)}
+                    className={`flex h-12 w-36 items-center justify-center border-2 text-xs font-semibold uppercase tracking-wider transition-all rounded ${
+                      activeTab === tabKey
+                        ? "border-primary bg-primary text-primary-foreground shadow-sm"
+                        : "border-border bg-card text-foreground hover:border-primary/50"
+                    }`}
+                    title={call.intentContent}
+                  >
+                    LLM Validator (Intent #{call.intentIndex})
+                  </button>
+                );
+              })}
+            </div>
+          </div>
+        </div>
+      )}
+    </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={`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

@@ -1,14 +1,14 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { ChevronDownIcon } from "lucide-react"
-import { Accordion as AccordionPrimitive } from "radix-ui"
+import * as React from "react";
+import { ChevronDownIcon } from "lucide-react";
+import { Accordion as AccordionPrimitive } from "radix-ui";
 
-import { cn } from "@/lib/utils"
+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)]"
+const EASE = "ease-[cubic-bezier(0.32,0.72,0,1)]";
 
 function Accordion({
   className,
@@ -20,7 +20,7 @@ function Accordion({
       className={cn("flex w-full flex-col gap-3", className)}
       {...props}
     />
-  )
+  );
 }
 
 function AccordionItem({
@@ -32,11 +32,11 @@ function AccordionItem({
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function AccordionTrigger({
@@ -50,7 +50,7 @@ function AccordionTrigger({
         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
+          className,
         )}
         {...props}
       >
@@ -60,12 +60,12 @@ function AccordionTrigger({
           data-slot="accordion-trigger-icon"
           className={cn(
             "h-4 w-4 shrink-0 text-muted-foreground transition-transform duration-300",
-            EASE
+            EASE,
           )}
         />
       </AccordionPrimitive.Trigger>
     </AccordionPrimitive.Header>
-  )
+  );
 }
 
 function AccordionContent({
@@ -89,13 +89,13 @@ function AccordionContent({
           // 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
+          className,
         )}
       >
         {children}
       </div>
     </AccordionPrimitive.Content>
-  )
+  );
 }
 
-export { Accordion, AccordionItem, AccordionTrigger, AccordionContent }
+export { Accordion, AccordionItem, AccordionTrigger, AccordionContent };

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

@@ -0,0 +1,62 @@
+import * as React from "react";
+import { cn } from "@/lib/utils";
+
+const Alert = React.forwardRef<
+  HTMLDivElement,
+  React.HTMLAttributes<HTMLDivElement>
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    role="alert"
+    className={cn(
+      "relative w-full rounded border border-border/30 bg-card p-4 text-sm shadow-[2px_2px_0_0_var(--border)] flex flex-col md:flex-row md:items-center gap-3 justify-between",
+      className,
+    )}
+    {...props}
+  />
+));
+Alert.displayName = "Alert";
+
+const AlertTitle = React.forwardRef<
+  HTMLParagraphElement,
+  React.HTMLAttributes<HTMLHeadingElement>
+>(({ className, ...props }, ref) => (
+  <h5
+    ref={ref}
+    className={cn(
+      "font-head font-bold leading-none tracking-tight text-foreground",
+      className,
+    )}
+    {...props}
+  />
+));
+AlertTitle.displayName = "AlertTitle";
+
+const AlertDescription = React.forwardRef<
+  HTMLParagraphElement,
+  React.HTMLAttributes<HTMLParagraphElement>
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    className={cn(
+      "text-xs text-muted-foreground mt-1 flex-1 leading-relaxed md:mt-0",
+      className,
+    )}
+    {...props}
+  />
+));
+AlertDescription.displayName = "AlertDescription";
+
+const AlertAction = React.forwardRef<
+  HTMLDivElement,
+  React.HTMLAttributes<HTMLDivElement>
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    className={cn("shrink-0 flex items-center mt-2 md:mt-0 md:ml-4", className)}
+    {...props}
+  />
+));
+AlertAction.displayName = "AlertAction";
+
+export { Alert, AlertTitle, AlertDescription, AlertAction };

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

@@ -1,11 +1,11 @@
-import * as React from "react"
-import { cva, type VariantProps } from "class-variance-authority"
-import { Slot } from "radix-ui"
+import * as React from "react";
+import { cva, type VariantProps } from "class-variance-authority";
+import { Slot } from "radix-ui";
 
-import { cn } from "@/lib/utils"
+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-2 px-2 py-0.5 text-xs font-head font-medium whitespace-nowrap shadow-sm 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!",
+  "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: {
@@ -24,8 +24,8 @@ const badgeVariants = cva(
     defaultVariants: {
       variant: "default",
     },
-  }
-)
+  },
+);
 
 function Badge({
   className,
@@ -34,7 +34,7 @@ function Badge({
   ...props
 }: React.ComponentProps<"span"> &
   VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
-  const Comp = asChild ? Slot.Root : "span"
+  const Comp = asChild ? Slot.Root : "span";
 
   return (
     <Comp
@@ -43,7 +43,7 @@ function Badge({
       className={cn(badgeVariants({ variant }), className)}
       {...props}
     />
-  )
+  );
 }
 
-export { Badge, badgeVariants }
+export { Badge, badgeVariants };

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

@@ -1,8 +1,8 @@
-import * as React from "react"
-import { Slot } from "@radix-ui/react-slot"
-import { cva, type VariantProps } from "class-variance-authority"
+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"
+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",
@@ -12,16 +12,17 @@ const buttonVariants = cva(
         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",
+        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",
+        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",
+        xs: "h-7 px-2.5 text-xs",
         lg: "h-11 px-8 text-base",
         icon: "h-10 w-10",
       },
@@ -30,27 +31,28 @@ const buttonVariants = cva(
       variant: "default",
       size: "default",
     },
-  }
-)
+  },
+);
 
 export interface ButtonProps
-  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
+  extends
+    React.ButtonHTMLAttributes<HTMLButtonElement>,
     VariantProps<typeof buttonVariants> {
-  asChild?: boolean
+  asChild?: boolean;
 }
 
 const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
   ({ className, variant, size, asChild = false, ...props }, ref) => {
-    const Comp = asChild ? Slot : "button"
+    const Comp = asChild ? Slot : "button";
     return (
       <Comp
         className={cn(buttonVariants({ variant, size, className }))}
         ref={ref}
         {...props}
       />
-    )
-  }
-)
-Button.displayName = "Button"
+    );
+  },
+);
+Button.displayName = "Button";
 
-export { Button, buttonVariants }
+export { Button, buttonVariants };

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

@@ -1,6 +1,6 @@
-import * as React from "react"
+import * as React from "react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Card({
   className,
@@ -13,11 +13,11 @@ function 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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
@@ -26,24 +26,21 @@ function CardHeader({ className, ...props }: React.ComponentProps<"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
+        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
-      )}
+      className={cn("font-head text-headline-sm text-foreground", className)}
       {...props}
     />
-  )
+  );
 }
 
 function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
@@ -53,7 +50,7 @@ function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("text-sm text-muted-foreground", className)}
       {...props}
     />
-  )
+  );
 }
 
 function CardAction({ className, ...props }: React.ComponentProps<"div">) {
@@ -62,11 +59,11 @@ function CardAction({ className, ...props }: React.ComponentProps<"div">) {
       data-slot="card-action"
       className={cn(
         "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function CardContent({ className, ...props }: React.ComponentProps<"div">) {
@@ -76,7 +73,7 @@ function CardContent({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("px-(--card-spacing)", className)}
       {...props}
     />
-  )
+  );
 }
 
 function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
@@ -84,12 +81,12 @@ function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
     <div
       data-slot="card-footer"
       className={cn(
-        "flex items-center border-t border-dotted border-border/20 bg-muted/30 p-(--card-spacing)",
-        className
+        "flex items-center border-t border-dotted border-border/20 bg-muted/30 px-(--card-spacing) pt-(--card-spacing)",
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 export {
@@ -100,4 +97,4 @@ export {
   CardAction,
   CardDescription,
   CardContent,
-}
+};

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

@@ -1,10 +1,10 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { CheckIcon } from "lucide-react"
-import { Checkbox as CheckboxPrimitive } from "radix-ui"
+import * as React from "react";
+import { CheckIcon } from "lucide-react";
+import { Checkbox as CheckboxPrimitive } from "radix-ui";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Checkbox({
   className,
@@ -15,7 +15,7 @@ function Checkbox({
       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
+        className,
       )}
       {...props}
     >
@@ -26,7 +26,7 @@ function Checkbox({
         <CheckIcon />
       </CheckboxPrimitive.Indicator>
     </CheckboxPrimitive.Root>
-  )
+  );
 }
 
-export { Checkbox }
+export { Checkbox };

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

@@ -0,0 +1,299 @@
+"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 && (
+          <InputGroupButton
+            size="icon-xs"
+            variant="ghost"
+            render={<ComboboxTrigger />}
+            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(
+            "cn-menu-target cn-menu-translucent group/combobox-content relative max-h-(--available-height) w-(--anchor-width) max-w-(--available-width) min-w-[calc(var(--anchor-width)+var(--spacing-7,1.75rem))] 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-72 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(var(--spacing,0.25rem)*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

@@ -1,34 +1,34 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { XIcon } from "lucide-react"
-import { Dialog as DialogPrimitive } from "radix-ui"
+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"
+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} />
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />;
 }
 
 function DialogTrigger({
   ...props
 }: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
-  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />;
 }
 
 function DialogPortal({
   ...props
 }: React.ComponentProps<typeof DialogPrimitive.Portal>) {
-  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />
+  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />;
 }
 
 function DialogClose({
   ...props
 }: React.ComponentProps<typeof DialogPrimitive.Close>) {
-  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />
+  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />;
 }
 
 function DialogOverlay({
@@ -40,11 +40,11 @@ function DialogOverlay({
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function DialogContent({
@@ -53,7 +53,7 @@ function DialogContent({
   showCloseButton = true,
   ...props
 }: React.ComponentProps<typeof DialogPrimitive.Content> & {
-  showCloseButton?: boolean
+  showCloseButton?: boolean;
 }) {
   return (
     <DialogPortal>
@@ -62,7 +62,7 @@ function DialogContent({
         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
+          className,
         )}
         {...props}
       >
@@ -70,7 +70,7 @@ function DialogContent({
         {showCloseButton && (
           <DialogPrimitive.Close data-slot="dialog-close" asChild>
             <Button
-              variant="ghost"
+              variant="outline"
               className="absolute top-2 right-2"
               size="icon"
             >
@@ -81,7 +81,7 @@ function DialogContent({
         )}
       </DialogPrimitive.Content>
     </DialogPortal>
-  )
+  );
 }
 
 function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
@@ -91,7 +91,7 @@ function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("flex flex-col gap-2", className)}
       {...props}
     />
-  )
+  );
 }
 
 function DialogFooter({
@@ -100,14 +100,14 @@ function DialogFooter({
   children,
   ...props
 }: React.ComponentProps<"div"> & {
-  showCloseButton?: boolean
+  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
+        className,
       )}
       {...props}
     >
@@ -118,7 +118,7 @@ function DialogFooter({
         </DialogPrimitive.Close>
       )}
     </div>
-  )
+  );
 }
 
 function DialogTitle({
@@ -128,13 +128,10 @@ function DialogTitle({
   return (
     <DialogPrimitive.Title
       data-slot="dialog-title"
-      className={cn(
-        "font-head text-base leading-none font-medium",
-        className
-      )}
+      className={cn("font-head text-base leading-none font-medium", className)}
       {...props}
     />
-  )
+  );
 }
 
 function DialogDescription({
@@ -146,11 +143,11 @@ function DialogDescription({
       data-slot="dialog-description"
       className={cn(
         "text-sm text-muted-foreground *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 export {
@@ -164,4 +161,4 @@ export {
   DialogPortal,
   DialogTitle,
   DialogTrigger,
-}
+};

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

@@ -1,6 +1,6 @@
-import { cva, type VariantProps } from "class-variance-authority"
+import { cva, type VariantProps } from "class-variance-authority";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Empty({ className, ...props }: React.ComponentProps<"div">) {
   return (
@@ -8,11 +8,11 @@ function Empty({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
@@ -22,7 +22,7 @@ function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("flex max-w-sm flex-col items-center gap-2", className)}
       {...props}
     />
-  )
+  );
 }
 
 const emptyMediaVariants = cva(
@@ -37,8 +37,8 @@ const emptyMediaVariants = cva(
     defaultVariants: {
       variant: "default",
     },
-  }
-)
+  },
+);
 
 function EmptyMedia({
   className,
@@ -52,20 +52,17 @@ function EmptyMedia({
       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
-      )}
+      className={cn("text-sm font-medium tracking-tight", className)}
       {...props}
     />
-  )
+  );
 }
 
 function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
@@ -74,11 +71,11 @@ function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
       data-slot="empty-description"
       className={cn(
         "text-sm/relaxed text-muted-foreground [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
@@ -87,11 +84,11 @@ function EmptyContent({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 export {
@@ -101,4 +98,4 @@ export {
   EmptyDescription,
   EmptyContent,
   EmptyMedia,
-}
+};

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

@@ -0,0 +1,173 @@
+"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 relative flex h-8 w-full min-w-0 items-center rounded border-2 bg-input shadow-sm transition-colors outline-none in-data-[slot=combobox-content]:focus-within:border-inherit in-data-[slot=combobox-content]:focus-within:ring-0 has-disabled:bg-input/50 has-disabled:opacity-50 has-[[data-slot=input-group-control]:focus-visible]:outline-2 has-[[data-slot=input-group-control]:focus-visible]:outline-offset-2 has-[[data-slot=input-group-control]:focus-visible]:outline-primary has-[[data-slot][aria-invalid=true]]:border-destructive has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>textarea]:h-auto has-[>[data-align=block-end]]:[&>input]:pt-3 has-[>[data-align=block-start]]:[&>input]:pb-3 has-[>[data-align=inline-end]]:[&>input]:pr-1.5 has-[>[data-align=inline-start]]:[&>input]:pl-1.5",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+const inputGroupAddonVariants = cva(
+  "flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium text-muted-foreground select-none 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-2 has-[>button]:ml-[-0.3rem] has-[>kbd]:ml-[-0.15rem]",
+        "inline-end":
+          "order-last pr-2 has-[>button]:mr-[-0.3rem] has-[>kbd]:mr-[-0.15rem]",
+        "block-start":
+          "order-first w-full justify-start px-2.5 pt-2 group-has-[>input]/input-group:pt-2 [.border-b]:pb-2",
+        "block-end":
+          "order-last w-full justify-start px-2.5 pb-2 group-has-[>input]/input-group:pb-2 [.border-t]:pt-2",
+      },
+    },
+    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)-3px)] px-1.5 [&>svg:not([class*='size-'])]:size-3.5",
+        sm: "",
+        "icon-xs":
+          "size-6 rounded-[calc(var(--radius)-3px)] 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",
+  render,
+  ...props
+}: Omit<React.ComponentProps<typeof Button>, "size" | "type"> &
+  VariantProps<typeof inputGroupButtonVariants> & {
+    type?: "button" | "submit" | "reset";
+    render?: React.ReactElement;
+  }) {
+  if (render) {
+    return React.cloneElement(render, {
+      className: cn(
+        inputGroupButtonVariants({ size }),
+        (render.props as Record<string, unknown>)?.className as
+          string | undefined,
+        className,
+      ),
+      type,
+      ...props,
+    } as Record<string, unknown> as React.HTMLAttributes<HTMLElement>);
+  }
+
+  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(
+        "flex items-center gap-2 text-sm text-muted-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
+        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 outline-none focus-visible:outline-none disabled:bg-transparent aria-invalid:outline-none dark:bg-transparent dark:disabled: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-2 shadow-none outline-none focus-visible:outline-none disabled:bg-transparent aria-invalid:outline-none dark:bg-transparent dark:disabled:bg-transparent",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupText,
+  InputGroupInput,
+  InputGroupTextarea,
+};

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

@@ -1,6 +1,6 @@
-import * as React from "react"
+import * as React from "react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Input({ className, type, ...props }: React.ComponentProps<"input">) {
   return (
@@ -9,11 +9,11 @@ function Input({ className, type, ...props }: React.ComponentProps<"input">) {
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
-export { Input }
+export { Input };

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

@@ -1,10 +1,10 @@
-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 * 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"
+import { cn } from "@/lib/utils";
+import { Separator } from "@/components/ui/separator";
 
 function ItemGroup({ className, ...props }: React.ComponentProps<"div">) {
   return (
@@ -13,11 +13,11 @@ function ItemGroup({ className, ...props }: React.ComponentProps<"div">) {
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function ItemSeparator({
@@ -31,7 +31,7 @@ function ItemSeparator({
       className={cn("my-2", className)}
       {...props}
     />
-  )
+  );
 }
 
 const itemVariants = cva(
@@ -53,8 +53,8 @@ const itemVariants = cva(
       variant: "default",
       size: "default",
     },
-  }
-)
+  },
+);
 
 function Item({
   className,
@@ -69,7 +69,7 @@ function Item({
       {
         className: cn(itemVariants({ variant, size, className })),
       },
-      props
+      props,
     ),
     render,
     state: {
@@ -77,7 +77,7 @@ function Item({
       variant,
       size,
     },
-  })
+  });
 }
 
 const itemMediaVariants = cva(
@@ -94,8 +94,8 @@ const itemMediaVariants = cva(
     defaultVariants: {
       variant: "default",
     },
-  }
-)
+  },
+);
 
 function ItemMedia({
   className,
@@ -109,7 +109,7 @@ function ItemMedia({
       className={cn(itemMediaVariants({ variant, className }))}
       {...props}
     />
-  )
+  );
 }
 
 function ItemContent({ className, ...props }: React.ComponentProps<"div">) {
@@ -118,11 +118,11 @@ function ItemContent({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function ItemTitle({ className, ...props }: React.ComponentProps<"div">) {
@@ -131,11 +131,11 @@ function ItemTitle({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function ItemDescription({ className, ...props }: React.ComponentProps<"p">) {
@@ -144,11 +144,11 @@ function ItemDescription({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function ItemActions({ className, ...props }: React.ComponentProps<"div">) {
@@ -158,7 +158,7 @@ function ItemActions({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("flex items-center gap-2", className)}
       {...props}
     />
-  )
+  );
 }
 
 function ItemHeader({ className, ...props }: React.ComponentProps<"div">) {
@@ -167,11 +167,11 @@ function ItemHeader({ className, ...props }: React.ComponentProps<"div">) {
       data-slot="item-header"
       className={cn(
         "flex basis-full items-center justify-between gap-2",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function ItemFooter({ className, ...props }: React.ComponentProps<"div">) {
@@ -180,11 +180,11 @@ function ItemFooter({ className, ...props }: React.ComponentProps<"div">) {
       data-slot="item-footer"
       className={cn(
         "flex basis-full items-center justify-between gap-2",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 export {
@@ -198,4 +198,4 @@ export {
   ItemDescription,
   ItemHeader,
   ItemFooter,
-}
+};

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

@@ -1,9 +1,9 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { Label as LabelPrimitive } from "radix-ui"
+import * as React from "react";
+import { Label as LabelPrimitive } from "radix-ui";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Label({
   className,
@@ -14,11 +14,11 @@ function Label({
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
-export { Label }
+export { Label };

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

@@ -1,9 +1,9 @@
-import * as React from "react"
-import { cva } from "class-variance-authority"
-import { ChevronDownIcon } from "lucide-react"
-import { NavigationMenu as NavigationMenuPrimitive } from "radix-ui"
+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"
+import { cn } from "@/lib/utils";
 
 function NavigationMenu({
   className,
@@ -11,7 +11,7 @@ function NavigationMenu({
   viewport = true,
   ...props
 }: React.ComponentProps<typeof NavigationMenuPrimitive.Root> & {
-  viewport?: boolean
+  viewport?: boolean;
 }) {
   return (
     <NavigationMenuPrimitive.Root
@@ -19,14 +19,14 @@ function NavigationMenu({
       data-viewport={viewport}
       className={cn(
         "group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
-        className
+        className,
       )}
       {...props}
     >
       {children}
       {viewport && <NavigationMenuViewport />}
     </NavigationMenuPrimitive.Root>
-  )
+  );
 }
 
 function NavigationMenuList({
@@ -38,11 +38,11 @@ function NavigationMenuList({
       data-slot="navigation-menu-list"
       className={cn(
         "group flex flex-1 list-none items-center justify-center gap-0",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function NavigationMenuItem({
@@ -55,12 +55,12 @@ function NavigationMenuItem({
       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"
-)
+  "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,
@@ -79,7 +79,7 @@ function NavigationMenuTrigger({
         aria-hidden="true"
       />
     </NavigationMenuPrimitive.Trigger>
-  )
+  );
 }
 
 function NavigationMenuContent({
@@ -91,11 +91,11 @@ function NavigationMenuContent({
       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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function NavigationMenuViewport({
@@ -105,19 +105,19 @@ function NavigationMenuViewport({
   return (
     <div
       className={cn(
-        "absolute top-full left-0 isolate z-50 flex justify-center"
+        "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
+          className,
         )}
         {...props}
       />
     </div>
-  )
+  );
 }
 
 function NavigationMenuLink({
@@ -128,12 +128,12 @@ function NavigationMenuLink({
     <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:bg-secondary focus: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
+        "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({
@@ -145,13 +145,13 @@ function NavigationMenuIndicator({
       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
+        className,
       )}
       {...props}
     >
       <div className="relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm bg-border shadow-md" />
     </NavigationMenuPrimitive.Indicator>
-  )
+  );
 }
 
 export {
@@ -164,4 +164,4 @@ export {
   NavigationMenuIndicator,
   NavigationMenuViewport,
   navigationMenuTriggerStyle,
-}
+};

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

@@ -1,12 +1,12 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { Select as SelectPrimitive } from "@base-ui/react/select"
-import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react"
+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"
+import { cn } from "@/lib/utils";
 
-const Select = SelectPrimitive.Root
+const Select = SelectPrimitive.Root;
 
 function SelectGroup({ className, ...props }: SelectPrimitive.Group.Props) {
   return (
@@ -15,7 +15,7 @@ function SelectGroup({ className, ...props }: SelectPrimitive.Group.Props) {
       className={cn("scroll-my-1 p-1", className)}
       {...props}
     />
-  )
+  );
 }
 
 function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
@@ -25,7 +25,7 @@ function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
       className={cn("flex flex-1 text-left", className)}
       {...props}
     />
-  )
+  );
 }
 
 function SelectTrigger({
@@ -34,7 +34,7 @@ function SelectTrigger({
   children,
   ...props
 }: SelectPrimitive.Trigger.Props & {
-  size?: "sm" | "default"
+  size?: "sm" | "default";
 }) {
   return (
     <SelectPrimitive.Trigger
@@ -42,7 +42,7 @@ function SelectTrigger({
       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
+        className,
       )}
       {...props}
     >
@@ -53,7 +53,7 @@ function SelectTrigger({
         }
       />
     </SelectPrimitive.Trigger>
-  )
+  );
 }
 
 function SelectContent({
@@ -83,7 +83,10 @@ function SelectContent({
         <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 )}
+          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 />
@@ -92,7 +95,7 @@ function SelectContent({
         </SelectPrimitive.Popup>
       </SelectPrimitive.Positioner>
     </SelectPrimitive.Portal>
-  )
+  );
 }
 
 function SelectLabel({
@@ -105,7 +108,7 @@ function SelectLabel({
       className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
       {...props}
     />
-  )
+  );
 }
 
 function SelectItem({
@@ -118,7 +121,7 @@ function SelectItem({
       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
+        className,
       )}
       {...props}
     >
@@ -133,7 +136,7 @@ function SelectItem({
         <CheckIcon className="pointer-events-none" />
       </SelectPrimitive.ItemIndicator>
     </SelectPrimitive.Item>
-  )
+  );
 }
 
 function SelectSeparator({
@@ -146,7 +149,7 @@ function SelectSeparator({
       className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
       {...props}
     />
-  )
+  );
 }
 
 function SelectScrollUpButton({
@@ -158,13 +161,13 @@ function SelectScrollUpButton({
       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
+        className,
       )}
       {...props}
     >
       <ChevronUpIcon />
     </SelectPrimitive.ScrollUpArrow>
-  )
+  );
 }
 
 function SelectScrollDownButton({
@@ -176,13 +179,13 @@ function SelectScrollDownButton({
       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
+        className,
       )}
       {...props}
     >
       <ChevronDownIcon />
     </SelectPrimitive.ScrollDownArrow>
-  )
+  );
 }
 
 export {
@@ -196,4 +199,4 @@ export {
   SelectSeparator,
   SelectTrigger,
   SelectValue,
-}
+};

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

@@ -1,9 +1,9 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import * as SeparatorPrimitive from "@radix-ui/react-separator"
+import * as React from "react";
+import * as SeparatorPrimitive from "@radix-ui/react-separator";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 const Separator = React.forwardRef<
   React.ElementRef<typeof SeparatorPrimitive.Root>,
@@ -11,7 +11,7 @@ const Separator = React.forwardRef<
 >(
   (
     { className, orientation = "horizontal", decorative = true, ...props },
-    ref
+    ref,
   ) => (
     <SeparatorPrimitive.Root
       ref={ref}
@@ -20,12 +20,12 @@ const Separator = React.forwardRef<
       className={cn(
         "shrink-0 bg-border",
         orientation === "horizontal" ? "h-[1px] w-full" : "h-full w-[1px]",
-        className
+        className,
       )}
       {...props}
     />
-  )
-)
-Separator.displayName = SeparatorPrimitive.Root.displayName
+  ),
+);
+Separator.displayName = SeparatorPrimitive.Root.displayName;
 
-export { Separator }
+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

@@ -1,6 +1,6 @@
-import { Loader2Icon } from "lucide-react"
+import { Loader2Icon } from "lucide-react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
   return (
@@ -11,7 +11,7 @@ function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
       className={cn("size-4 animate-spin", className)}
       {...props}
     />
-  )
+  );
 }
 
-export { Spinner }
+export { Spinner };

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

@@ -1,8 +1,8 @@
-"use client"
+"use client";
 
-import * as React from "react"
+import * as React from "react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Table({ className, ...props }: React.ComponentProps<"table">) {
   return (
@@ -16,7 +16,7 @@ function Table({ className, ...props }: React.ComponentProps<"table">) {
         {...props}
       />
     </div>
-  )
+  );
 }
 
 function TableHeader({ className, ...props }: React.ComponentProps<"thead">) {
@@ -26,7 +26,7 @@ function TableHeader({ className, ...props }: React.ComponentProps<"thead">) {
       className={cn("[&_tr]:border-b-2", className)}
       {...props}
     />
-  )
+  );
 }
 
 function TableBody({ className, ...props }: React.ComponentProps<"tbody">) {
@@ -36,7 +36,7 @@ function TableBody({ className, ...props }: React.ComponentProps<"tbody">) {
       className={cn("[&_tr:last-child]:border-0", className)}
       {...props}
     />
-  )
+  );
 }
 
 function TableFooter({ className, ...props }: React.ComponentProps<"tfoot">) {
@@ -45,11 +45,11 @@ function TableFooter({ className, ...props }: React.ComponentProps<"tfoot">) {
       data-slot="table-footer"
       className={cn(
         "border-t-2 bg-muted/50 font-medium [&>tr]:last:border-b-0",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function TableRow({ className, ...props }: React.ComponentProps<"tr">) {
@@ -58,11 +58,11 @@ function TableRow({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function TableHead({ className, ...props }: React.ComponentProps<"th">) {
@@ -71,11 +71,11 @@ function TableHead({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function TableCell({ className, ...props }: React.ComponentProps<"td">) {
@@ -84,11 +84,11 @@ function TableCell({ className, ...props }: React.ComponentProps<"td">) {
       data-slot="table-cell"
       className={cn(
         "p-2 align-middle whitespace-nowrap [&:has([role=checkbox])]:pr-0",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function TableCaption({
@@ -101,7 +101,7 @@ function TableCaption({
       className={cn("mt-4 text-sm text-muted-foreground", className)}
       {...props}
     />
-  )
+  );
 }
 
 export {
@@ -113,4 +113,4 @@ export {
   TableRow,
   TableCell,
   TableCaption,
-}
+};

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

@@ -1,10 +1,10 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import { cva, type VariantProps } from "class-variance-authority"
-import { Tabs as TabsPrimitive } from "radix-ui"
+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"
+import { cn } from "@/lib/utils";
 
 function Tabs({
   className,
@@ -17,11 +17,11 @@ function Tabs({
       data-orientation={orientation}
       className={cn(
         "group/tabs flex gap-2 data-horizontal:flex-col",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 const tabsListVariants = cva(
@@ -36,8 +36,8 @@ const tabsListVariants = cva(
     defaultVariants: {
       variant: "default",
     },
-  }
-)
+  },
+);
 
 function TabsList({
   className,
@@ -52,7 +52,7 @@ function TabsList({
       className={cn(tabsListVariants({ variant }), className)}
       {...props}
     />
-  )
+  );
 }
 
 function TabsTrigger({
@@ -67,11 +67,11 @@ function TabsTrigger({
         "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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function TabsContent({
@@ -84,7 +84,7 @@ function TabsContent({
       className={cn("flex-1 text-sm outline-none", className)}
       {...props}
     />
-  )
+  );
 }
 
-export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants }
+export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants };

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

@@ -1,6 +1,6 @@
-import * as React from "react"
+import * as React from "react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
   return (
@@ -8,11 +8,11 @@ function Textarea({ className, ...props }: React.ComponentProps<"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
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
-export { Textarea }
+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

@@ -1,7 +1,6 @@
 export interface IntentInfo {
   type: string;
-  description: string;
-  selfDescription?: string;
+  content: string;
   modifiers: string[];
   targetIds: string[];
   isValid?: boolean;
@@ -9,16 +8,25 @@ export interface IntentInfo {
   minutesToAdvance?: number;
 }
 
-export interface LogEntry {
-  turn: number;
-  entityId: string;
-  entityName: string;
-  narrativeProse: string;
-  intents: IntentInfo[];
-  timestamp: string;
-  rawPrompt?: {
-    systemPrompt: string;
-    userContext: string;
+export interface PromptComponent {
+  label: string;
+  type: "system" | "world" | "events" | "memories" | "input" | "other";
+  content: string;
+}
+
+export interface PromptBreakdown {
+  systemPrompt: string;
+  userContext: string;
+  components?: PromptComponent[];
+}
+
+export interface ValidatorCall {
+  intentIndex: number;
+  intentContent: string;
+  prompt?: PromptBreakdown;
+  response: {
+    isValid: boolean;
+    reason: string;
   };
   usage?: {
     inputTokens: number;
@@ -28,10 +36,39 @@ export interface LogEntry {
     providerInstanceName?: string;
     maxContext?: number;
   };
-  decoderPrompt?: {
-    systemPrompt: string;
-    userContext: string;
+}
+
+export interface HandoffResult {
+  chunks: {
+    content: string;
+    importance: number;
+    quotes?: string[];
+    retainInBuffer?: boolean;
+    involvedEntityIds?: string[];
+  }[];
+}
+
+export interface LogEntry {
+  turn: number;
+  entityId: string;
+  entityName: string;
+  narrativeProse: string;
+  intents: IntentInfo[];
+  timestamp: string;
+  isHandoff?: boolean;
+  handoffResult?: HandoffResult;
+  decodedIntents?: IntentInfo[];
+  validatorCalls?: ValidatorCall[];
+  rawPrompt?: PromptBreakdown;
+  usage?: {
+    inputTokens: number;
+    outputTokens: number;
+    totalTokens: number;
+    modelName?: string;
+    providerInstanceName?: string;
+    maxContext?: number;
   };
+  decoderPrompt?: PromptBreakdown;
   decoderUsage?: {
     inputTokens: number;
     outputTokens: number;
@@ -46,6 +83,8 @@ export interface EntityInfo {
   id: string;
   name: string;
   isPlayer: boolean;
+  isAgent: boolean;
+  aliases?: Record<string, string>;
 }
 
 export interface WaitingContext {
@@ -67,4 +106,6 @@ export interface SimSnapshot {
   entityIndex: number;
   waitingEntity?: WaitingContext;
   error?: string;
+  worldTime?: string;
+  currentLocation?: string;
 }

apps/gui/src/lib/simulation.ts

@@ -1,971 +0,0 @@
-import dotenv from "dotenv";
-import Database from "better-sqlite3";
-import path from "path";
-import fs from "fs";
-import { SQLiteRepository } from "@omnia/core";
-
-// Load .env from monorepo root or apps/gui/
-const cwd = process.cwd();
-const envCandidates = [
-  path.resolve(cwd, ".env"),
-  path.resolve(cwd, "../../.env"),
-];
-for (const c of envCandidates) {
-  if (fs.existsSync(c) && fs.statSync(c).isFile()) {
-    dotenv.config({ path: c });
-    break;
-  }
-}
-
-import { BufferRepository, LedgerRepository, HandoffEngine, checkHandoffTrigger } from "@omnia/memory";
-import { Architect, AliasDeltaGenerator } from "@omnia/architect";
-import {
-  ActorAgent,
-  ActorPromptBuilder,
-  IActorProseGenerator,
-  buildBufferEntryForIntent,
-} from "@omnia/actor";
-import { GeminiProvider, ILLMProvider, MockLLMProvider, ProviderManager, OpenRouterProvider, IEmbeddingProvider, GeminiEmbeddingProvider, MockEmbeddingProvider, ModelProviderInstance } from "@omnia/llm";
-import { ScenarioLoader } from "@omnia/scenario";
-
-import type {
-  IntentInfo,
-  LogEntry,
-  EntityInfo,
-  WaitingContext,
-  SimSnapshot,
-} from "./simulation-types.js";
-
-export type { SimSnapshot, EntityInfo, LogEntry, IntentInfo, WaitingContext };
-
-class FixedProseGenerator implements IActorProseGenerator {
-  constructor(private prose: string) {}
-
-  async generate(
-    entityId: string,
-    systemPrompt: string,
-    userContext: string,
-  ): Promise<string> {
-    void entityId;
-    void systemPrompt;
-    void userContext;
-    return this.prose;
-  }
-}
-
-interface SavedState {
-  scenarioName: string;
-  scenarioDescription: string;
-  turn: number;
-  maxTurns: number;
-  entities: EntityInfo[];
-  playerEntityId: string | undefined;
-  entityIndex: number;
-  status: "running" | "waiting_player" | "done" | "error";
-  error?: string;
-  waitingEntity?: WaitingContext;
-  aliasDoneForTurn: boolean;
-  log: LogEntry[];
-  providerMappings: Record<string, string>;
-}
-
-function loadSessionState(db: Database.Database, id: string): SavedState | null {
-  try {
-    db.prepare(`
-      CREATE TABLE IF NOT EXISTS gui_meta (
-        id TEXT PRIMARY KEY,
-        state_json TEXT
-      )
-    `).run();
-    const row = db.prepare(`SELECT state_json FROM gui_meta WHERE id = ?`).get(id) as { state_json: string } | undefined;
-    return row ? (JSON.parse(row.state_json) as SavedState) : null;
-  } catch {
-    return null;
-  }
-}
-
-interface SimSession {
-  db: Database.Database;
-  dbPath: string;
-  coreRepo: SQLiteRepository;
-  bufferRepo: BufferRepository;
-  ledgerRepo: LedgerRepository;
-  worldInstanceId: string;
-  scenarioName: string;
-  scenarioDescription: string;
-  turn: number;
-  maxTurns: number;
-  entities: EntityInfo[];
-  playerEntityId: string | undefined;
-  entityIndex: number;
-  actorProvider: ILLMProvider;
-  validatorProvider: ILLMProvider;
-  decoderProvider: ILLMProvider;
-  timedeltaProvider: ILLMProvider;
-  handoffProvider: ILLMProvider;
-  embeddingProvider: IEmbeddingProvider;
-  architect: Architect;
-  aliasGenerator: AliasDeltaGenerator;
-  log: LogEntry[];
-  status: "running" | "waiting_player" | "done" | "error";
-  error?: string;
-  waitingEntity?: WaitingContext;
-  aliasDoneForTurn: boolean;
-  providerMappings: Record<string, string>;
-}
-
-class SimulationManager {
-  private sessions = new Map<string, SimSession>();
-
-  async create(
-    scenarioPath: string,
-    playEntityName?: string,
-    providerInstanceId?: string,
-  ): Promise<SimSnapshot> {
-    let activeInstance: ModelProviderInstance | null = providerInstanceId
-      ? ProviderManager.list().find((p) => p.id === providerInstanceId) || null
-      : ProviderManager.getActive("generative");
-
-    if (!activeInstance) {
-      const envKey = process.env.GOOGLE_API_KEY;
-      if (envKey) {
-        activeInstance = ProviderManager.create("Default (Env)", "google-genai", envKey, undefined, "generative");
-      }
-    }
-    if (!activeInstance) {
-      return {
-        id: "",
-        status: "error",
-        turn: 0,
-        maxTurns: 20,
-        scenarioName: "",
-        scenarioDescription: "",
-        entities: [],
-        log: [],
-        entityIndex: 0,
-        error: "No active LLM Provider Instance found. Please configure a key in Settings first.",
-      };
-    }
-
-    const scenarioJson = JSON.parse(fs.readFileSync(scenarioPath, "utf-8"));
-    const id = `sim-${Date.now()}`;
-
-    const dbDir = path.resolve(process.cwd(), "data");
-    fs.mkdirSync(dbDir, { recursive: true });
-    const dbPath = path.join(dbDir, `${id}.db`);
-    const db = new Database(dbPath);
-    const coreRepo = new SQLiteRepository(db);
-    const bufferRepo = new BufferRepository(db);
-    const ledgerRepo = new LedgerRepository(db);
-    const loader = new ScenarioLoader(coreRepo, bufferRepo);
-
-    const worldInstanceId = id;
-    await loader.initializeWorld(scenarioJson, worldInstanceId);
-
-    const worldState = coreRepo.loadWorldState(worldInstanceId);
-    if (!worldState) {
-      db.close();
-      return {
-        id: "",
-        status: "error",
-        turn: 0,
-        maxTurns: 20,
-        scenarioName: "",
-        scenarioDescription: "",
-        entities: [],
-        log: [],
-        entityIndex: 0,
-        error: "Failed to load world state after initialization.",
-      };
-    }
-
-    const rawEntities = Array.from(worldState.entities.values());
-    const entityInfos: EntityInfo[] = rawEntities.map((e) => ({
-      id: e.id,
-      name: (e.attributes.get("name")?.getValue() as string) || e.id,
-      isPlayer: false,
-    }));
-
-    let playerEntityId: string | undefined;
-    if (playEntityName) {
-      let matched = worldState.getEntity(playEntityName);
-      if (!matched) {
-        for (const ent of rawEntities) {
-          const nameAttr = ent.attributes.get("name")?.getValue() as
-            | string
-            | undefined;
-          if (nameAttr?.toLowerCase() === playEntityName.toLowerCase()) {
-            matched = ent;
-            break;
-          }
-        }
-      }
-      if (!matched) {
-        for (const ent of rawEntities) {
-          const nameAttr = ent.attributes.get("name")?.getValue() as
-            | string
-            | undefined;
-          if (
-            nameAttr?.toLowerCase().includes(playEntityName.toLowerCase()) ||
-            ent.id.toLowerCase().includes(playEntityName.toLowerCase())
-          ) {
-            matched = ent;
-            break;
-          }
-        }
-      }
-      if (matched) {
-        playerEntityId = matched.id;
-        const info = entityInfos.find((e) => e.id === matched.id);
-        if (info) info.isPlayer = true;
-      }
-    }
-
-    const list = ProviderManager.list();
-    const active = ProviderManager.getActive("generative") || activeInstance;
-    const mappings = ProviderManager.getMappings();
-
-    const resolveProviderForTask = (task: string): ILLMProvider => {
-      const mappedId = mappings[task];
-      let inst = mappedId ? list.find((p) => p.id === mappedId) : null;
-      if (!inst || inst.type !== "generative") {
-        inst = active;
-      }
-
-      const key = inst ? inst.apiKey : (process.env.GOOGLE_API_KEY || "");
-      const providerName = inst ? inst.providerName : "google-genai";
-      const modelName = inst ? inst.modelName : undefined;
-      const instanceName = inst ? inst.name : undefined;
-      const maxContext = inst ? inst.maxContext : undefined;
-
-      if (providerName === "google-genai") {
-        return new GeminiProvider(key, modelName, instanceName, maxContext);
-      } else if (providerName === "openrouter") {
-        return new OpenRouterProvider(key, modelName, instanceName, maxContext);
-      } else {
-        return new MockLLMProvider([]);
-      }
-    };
-
-    const resolveEmbeddingProvider = (): IEmbeddingProvider => {
-      const mappedId = mappings["embeddings"];
-      let inst = mappedId ? list.find((p) => p.id === mappedId) : null;
-      if (!inst || inst.type !== "embedding") {
-        inst = ProviderManager.getActive("embedding");
-      }
-
-      const key = inst ? inst.apiKey : (process.env.GOOGLE_API_KEY || "");
-      const providerName = inst ? inst.providerName : "google-genai";
-      const modelName = inst ? inst.modelName : undefined;
-
-      if (providerName === "google-genai") {
-        return new GeminiEmbeddingProvider(key, modelName);
-      } else {
-        return new MockEmbeddingProvider(modelName);
-      }
-    };
-
-    const actorProvider = resolveProviderForTask("actor-prose");
-    const validatorProvider = resolveProviderForTask("llm-validator");
-    const decoderProvider = resolveProviderForTask("intent-decoder");
-    const timedeltaProvider = resolveProviderForTask("timedelta");
-    const handoffProvider = resolveProviderForTask("handoff");
-    const embeddingProvider = resolveEmbeddingProvider();
-
-    const architect = new Architect(
-      { validator: validatorProvider, timedelta: timedeltaProvider },
-      coreRepo,
-    );
-    const aliasGenerator = new AliasDeltaGenerator(actorProvider);
-
-    const session: SimSession = {
-      db,
-      dbPath,
-      coreRepo,
-      bufferRepo,
-      ledgerRepo,
-      worldInstanceId: worldInstanceId,
-      scenarioName: scenarioJson.name,
-      scenarioDescription: scenarioJson.description || "",
-      turn: 1,
-      maxTurns: 20,
-      entities: entityInfos,
-      playerEntityId,
-      entityIndex: 0,
-      actorProvider,
-      validatorProvider,
-      decoderProvider,
-      timedeltaProvider,
-      handoffProvider,
-      embeddingProvider,
-      architect,
-      aliasGenerator,
-      log: [],
-      status: "running",
-      aliasDoneForTurn: false,
-      providerMappings: mappings,
-    };
-
-    this.sessions.set(id, session);
-    return this.snapshot(session);
-  }
-
-  async step(id: string): Promise<SimSnapshot | null> {
-    const session = this.sessions.get(id);
-    if (!session) return null;
-    if (session.status !== "running") return this.snapshot(session);
-
-    try {
-      if (session.turn > session.maxTurns) {
-        session.status = "done";
-        this.save(session);
-        return this.snapshot(session);
-      }
-
-      if (!session.aliasDoneForTurn && session.entityIndex === 0) {
-        await this.runAliasResolution(session);
-        await this.runHandoffResolution(session);
-        session.aliasDoneForTurn = true;
-        this.save(session);
-        return this.snapshot(session);
-      }
-
-      if (session.entityIndex >= session.entities.length) {
-        session.turn++;
-        session.entityIndex = 0;
-        session.aliasDoneForTurn = false;
-        this.save(session);
-        return this.snapshot(session);
-      }
-
-      const info = session.entities[session.entityIndex];
-
-      if (info.isPlayer) {
-        await this.preparePlayerTurn(session, info);
-        this.save(session);
-        return this.snapshot(session);
-      }
-
-      await this.processNpcTurn(session, info);
-      session.entityIndex++;
-    } catch (err) {
-      session.status = "error";
-      session.error = err instanceof Error ? err.message : String(err);
-    }
-
-    this.save(session);
-    return this.snapshot(session);
-  }
-
-  async submitPlayerAction(
-    id: string,
-    prose: string,
-  ): Promise<SimSnapshot | null> {
-    const session = this.sessions.get(id);
-    if (!session) return null;
-    if (session.status !== "waiting_player") return this.snapshot(session);
-    if (!session.waitingEntity) return this.snapshot(session);
-
-    const ctx = session.waitingEntity;
-    session.waitingEntity = undefined;
-    session.status = "running";
-
-    try {
-      const worldState = session.coreRepo.loadWorldState(
-        session.worldInstanceId,
-      );
-      if (!worldState) throw new Error("World state lost");
-
-      const entity = worldState.getEntity(ctx.entityId);
-      if (!entity) throw new Error(`Player entity "${ctx.entityId}" not found`);
-
-      const playerActor = new ActorAgent(
-        { actor: session.actorProvider, decoder: session.decoderProvider },
-        session.bufferRepo,
-        session.ledgerRepo,
-        20,
-        new FixedProseGenerator(prose),
-      );
-
-      const result = await playerActor.act(worldState, entity);
-
-      const entry: LogEntry = {
-        turn: session.turn,
-        entityId: ctx.entityId,
-        entityName: ctx.name,
-        narrativeProse: result.narrativeProse,
-        intents: [],
-        timestamp: worldState.clock.get().toISOString(),
-        rawPrompt: {
-          systemPrompt: ctx.systemPrompt,
-          userContext: ctx.userContext,
-        },
-      };
-
-      if (session.decoderProvider.lastCalls && session.decoderProvider.lastCalls.length > 0) {
-        const call = session.decoderProvider.lastCalls[session.decoderProvider.lastCalls.length - 1];
-        entry.decoderPrompt = {
-          systemPrompt: call.systemPrompt,
-          userContext: call.userContext,
-        };
-        entry.decoderUsage = call.usage;
-      }
-
-      for (const intent of result.intents.intents) {
-        const outcome = await session.architect.processIntent(
-          worldState,
-          intent,
-        );
-        const ts = worldState.clock.get().toISOString();
-
-        entry.intents.push({
-          type: intent.type,
-          description: intent.description,
-          selfDescription: intent.selfDescription,
-          modifiers: intent.modifiers || [],
-          targetIds: intent.targetIds,
-          isValid: outcome.isValid,
-          reason: outcome.reason,
-          minutesToAdvance: outcome.timeDelta?.minutesToAdvance,
-        });
-
-        const actorEntry = buildBufferEntryForIntent(
-          intent,
-          ts,
-          entity.locationId,
-        );
-        if (intent.type === "action") {
-          actorEntry.outcome = {
-            isValid: outcome.isValid,
-            reason: outcome.reason,
-          };
-        }
-        session.bufferRepo.save(actorEntry);
-
-        if (
-          entity.locationId &&
-          (intent.type === "dialogue" || intent.type === "action")
-        ) {
-          for (const [, other] of worldState.entities) {
-            if (
-              other.id !== ctx.entityId &&
-              other.locationId === entity.locationId
-            ) {
-              const observerEntry = buildBufferEntryForIntent(
-                intent,
-                ts,
-                entity.locationId,
-              );
-              if (intent.type === "action") {
-                observerEntry.outcome = {
-                  isValid: outcome.isValid,
-                  reason: outcome.reason,
-                };
-              }
-              session.bufferRepo.save({
-                ...observerEntry,
-                ownerId: other.id,
-              });
-            }
-          }
-        }
-      }
-
-      session.log.push(entry);
-      session.coreRepo.saveWorldState(worldState);
-      session.entityIndex++;
-    } catch (err) {
-      session.status = "error";
-      session.error = err instanceof Error ? err.message : String(err);
-    }
-
-    this.save(session);
-    return this.snapshot(session);
-  }
-
-  private async preparePlayerTurn(
-    session: SimSession,
-    info: EntityInfo,
-  ): Promise<void> {
-    const worldState = session.coreRepo.loadWorldState(
-      session.worldInstanceId,
-    );
-    if (!worldState) throw new Error("World state lost");
-
-    const entity = worldState.getEntity(info.id);
-    if (!entity) throw new Error(`Entity "${info.id}" not found`);
-
-    const promptBuilder = new ActorPromptBuilder(session.bufferRepo, session.ledgerRepo, 20);
-    const { systemPrompt, userContext } = promptBuilder.build(
-      worldState,
-      entity,
-    );
-
-    session.waitingEntity = {
-      entityId: info.id,
-      name: info.name,
-      systemPrompt,
-      userContext,
-    };
-    session.status = "waiting_player";
-  }
-
-  private async processNpcTurn(
-    session: SimSession,
-    info: EntityInfo,
-  ): Promise<void> {
-    const worldState = session.coreRepo.loadWorldState(
-      session.worldInstanceId,
-    );
-    if (!worldState) throw new Error("World state lost");
-
-    const entity = worldState.getEntity(info.id);
-    if (!entity) throw new Error(`Entity "${info.id}" not found`);
-
-    const actor = new ActorAgent(
-      { actor: session.actorProvider, decoder: session.decoderProvider },
-      session.bufferRepo,
-      session.ledgerRepo,
-      20,
-    );
-    const result = await actor.act(worldState, entity);
-
-    const entry: LogEntry = {
-      turn: session.turn,
-      entityId: info.id,
-      entityName: info.name,
-      narrativeProse: result.narrativeProse,
-      intents: [],
-      timestamp: worldState.clock.get().toISOString(),
-    };
-
-    if (session.actorProvider.lastCalls && session.actorProvider.lastCalls.length > 0) {
-      const actorCall = session.actorProvider.lastCalls[session.actorProvider.lastCalls.length - 1];
-      entry.rawPrompt = {
-        systemPrompt: actorCall.systemPrompt,
-        userContext: actorCall.userContext,
-      };
-      entry.usage = actorCall.usage;
-    }
-
-    if (session.decoderProvider.lastCalls && session.decoderProvider.lastCalls.length > 0) {
-      const decoderCall = session.decoderProvider.lastCalls[session.decoderProvider.lastCalls.length - 1];
-      entry.decoderPrompt = {
-        systemPrompt: decoderCall.systemPrompt,
-        userContext: decoderCall.userContext,
-      };
-      entry.decoderUsage = decoderCall.usage;
-    }
-
-    for (const intent of result.intents.intents) {
-      const outcome = await session.architect.processIntent(
-        worldState,
-        intent,
-      );
-      const ts = worldState.clock.get().toISOString();
-
-      entry.intents.push({
-        type: intent.type,
-        description: intent.description,
-        selfDescription: intent.selfDescription,
-        modifiers: intent.modifiers || [],
-        targetIds: intent.targetIds,
-        isValid: outcome.isValid,
-        reason: outcome.reason,
-        minutesToAdvance: outcome.timeDelta?.minutesToAdvance,
-      });
-
-      const actorEntry = buildBufferEntryForIntent(
-        intent,
-        ts,
-        entity.locationId,
-      );
-      if (intent.type === "action") {
-        actorEntry.outcome = {
-          isValid: outcome.isValid,
-          reason: outcome.reason,
-        };
-      }
-      session.bufferRepo.save(actorEntry);
-
-      if (
-        entity.locationId &&
-        (intent.type === "dialogue" || intent.type === "action")
-      ) {
-        for (const [, other] of worldState.entities) {
-          if (
-            other.id !== info.id &&
-            other.locationId === entity.locationId
-          ) {
-            const observerEntry = buildBufferEntryForIntent(
-              intent,
-              ts,
-              entity.locationId,
-            );
-            if (intent.type === "action") {
-              observerEntry.outcome = {
-                isValid: outcome.isValid,
-                reason: outcome.reason,
-              };
-            }
-            session.bufferRepo.save({ ...observerEntry, ownerId: other.id });
-          }
-        }
-      }
-    }
-
-    session.log.push(entry);
-    session.coreRepo.saveWorldState(worldState);
-  }
-
-  private async runHandoffResolution(session: SimSession): Promise<void> {
-    const worldState = session.coreRepo.loadWorldState(
-      session.worldInstanceId,
-    );
-    if (!worldState) throw new Error("World state lost");
-
-    const handoffEngine = new HandoffEngine(
-      session.handoffProvider,
-      session.embeddingProvider,
-      session.bufferRepo,
-      session.ledgerRepo,
-    );
-
-    const entities = Array.from(worldState.entities.values());
-    for (const entity of entities) {
-      const bufferEntries = session.bufferRepo.listForOwner(entity.id);
-      const maxContext = session.handoffProvider.maxContext !== undefined ? session.handoffProvider.maxContext : 32768;
-
-      const trigger = checkHandoffTrigger(entity, bufferEntries, worldState.clock.get(), maxContext);
-      if (trigger !== "none") {
-        await handoffEngine.runHandoff(entity, bufferEntries, worldState.clock.get());
-      }
-    }
-  }
-
-  private async runAliasResolution(session: SimSession): Promise<void> {
-    const worldState = session.coreRepo.loadWorldState(
-      session.worldInstanceId,
-    );
-    if (!worldState) throw new Error("World state lost");
-
-    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 &&
-          !viewer.aliases.has(target.id)
-        ) {
-          const alias = await session.aliasGenerator.generate(viewer, target);
-          viewer.aliases.set(target.id, alias);
-          session.coreRepo.saveEntity(viewer, worldState.id);
-        }
-      }
-    }
-  }
-
-  close(id: string): void {
-    const session = this.sessions.get(id);
-    if (session) {
-      session.db.close();
-      this.sessions.delete(id);
-    }
-  }
-
-  deleteSession(id: string): void {
-    const session = this.sessions.get(id);
-    if (session) {
-      session.db.close();
-      this.sessions.delete(id);
-    }
-    const dbDir = path.resolve(process.cwd(), "data");
-    const dbPath = path.join(dbDir, `${id}.db`);
-    if (fs.existsSync(dbPath)) {
-      try {
-        fs.unlinkSync(dbPath);
-      } catch (err) {
-        console.error(`Failed to delete session file ${dbPath}:`, err);
-      }
-    }
-  }
-
-  async load(id: string): Promise<SimSnapshot | null> {
-    const active = this.sessions.get(id);
-    if (active) {
-      return this.snapshot(active);
-    }
-
-    const dbDir = path.resolve(process.cwd(), "data");
-    const dbPath = path.join(dbDir, `${id}.db`);
-    if (!fs.existsSync(dbPath)) return null;
-
-    try {
-      const db = new Database(dbPath);
-      const state = loadSessionState(db, id);
-      if (!state) {
-        db.close();
-        return null;
-      }
-
-      const list = ProviderManager.list();
-      const active = ProviderManager.getActive("generative");
-      const mappings = state.providerMappings || {};
-
-      const resolveProviderForTask = (task: string): ILLMProvider => {
-        const mappedId = mappings[task];
-        let inst = mappedId ? list.find((p) => p.id === mappedId) : null;
-        if (!inst || inst.type !== "generative") {
-          inst = active;
-        }
-
-        if (!inst) {
-          const envKey = process.env.GOOGLE_API_KEY;
-          if (envKey) {
-            inst = ProviderManager.create("Default (Env)", "google-genai", envKey, undefined, "generative");
-          }
-        }
-
-        if (!inst) {
-          throw new Error(`No active LLM Provider Instance found for task "${task}". Please configure a key in Settings first.`);
-        }
-
-        if (inst.providerName === "google-genai") {
-          return new GeminiProvider(inst.apiKey, inst.modelName, inst.name, inst.maxContext);
-        } else if (inst.providerName === "openrouter") {
-          return new OpenRouterProvider(inst.apiKey, inst.modelName, inst.name, inst.maxContext);
-        } else {
-          return new MockLLMProvider([]);
-        }
-      };
-
-      const resolveEmbeddingProvider = (): IEmbeddingProvider => {
-        const mappedId = mappings["embeddings"];
-        let inst = mappedId ? list.find((p) => p.id === mappedId) : null;
-        if (!inst || inst.type !== "embedding") {
-          inst = ProviderManager.getActive("embedding");
-        }
-        if (!inst) {
-          const envKey = process.env.GOOGLE_API_KEY;
-          if (envKey) {
-            inst = ProviderManager.create("Default Embed (Env)", "google-genai", envKey, "gemini-embedding-001", "embedding");
-          }
-        }
-
-        if (!inst) {
-          throw new Error(`No active Embedding Provider Instance found for task "embeddings". Please configure an embedding key in Settings first.`);
-        }
-
-        if (inst.providerName === "google-genai") {
-          return new GeminiEmbeddingProvider(inst.apiKey, inst.modelName);
-        } else {
-          return new MockEmbeddingProvider(inst.modelName);
-        }
-      };
-
-      const coreRepo = new SQLiteRepository(db);
-      const bufferRepo = new BufferRepository(db);
-      const ledgerRepo = new LedgerRepository(db);
-
-      const actorProvider = resolveProviderForTask("actor-prose");
-      const validatorProvider = resolveProviderForTask("llm-validator");
-      const decoderProvider = resolveProviderForTask("intent-decoder");
-      const timedeltaProvider = resolveProviderForTask("timedelta");
-      const handoffProvider = resolveProviderForTask("handoff");
-      const embeddingProvider = resolveEmbeddingProvider();
-
-      const architect = new Architect(
-        { validator: validatorProvider, timedelta: timedeltaProvider },
-        coreRepo,
-      );
-      const aliasGenerator = new AliasDeltaGenerator(actorProvider);
-
-      const session: SimSession = {
-        db,
-        dbPath,
-        coreRepo,
-        bufferRepo,
-        ledgerRepo,
-        worldInstanceId: id,
-        scenarioName: state.scenarioName,
-        scenarioDescription: state.scenarioDescription,
-        turn: state.turn,
-        maxTurns: state.maxTurns,
-        entities: state.entities || [],
-        playerEntityId: state.playerEntityId,
-        entityIndex: state.entityIndex,
-        actorProvider,
-        validatorProvider,
-        decoderProvider,
-        timedeltaProvider,
-        handoffProvider,
-        embeddingProvider,
-        architect,
-        aliasGenerator,
-        log: state.log || [],
-        status: state.status,
-        error: state.error,
-        waitingEntity: state.waitingEntity,
-        aliasDoneForTurn: state.aliasDoneForTurn || false,
-        providerMappings: mappings,
-      };
-
-      this.sessions.set(id, session);
-      return this.snapshot(session);
-    } catch (err) {
-      console.error(`Failed to load session ${id}:`, err);
-      return null;
-    }
-  }
-
-  listSavedSessions(): SimSnapshot[] {
-    const dbDir = path.resolve(process.cwd(), "data");
-    if (!fs.existsSync(dbDir)) return [];
-
-    const snapshots: SimSnapshot[] = [];
-    const files = fs.readdirSync(dbDir).filter(f => f.startsWith("sim-") && f.endsWith(".db"));
-
-    for (const file of files) {
-      const id = file.replace(".db", "");
-      const dbPath = path.join(dbDir, file);
-
-      const active = this.sessions.get(id);
-      if (active) {
-        snapshots.push(this.snapshot(active));
-        continue;
-      }
-
-      try {
-        const db = new Database(dbPath);
-        const state = loadSessionState(db, id);
-        db.close();
-
-        if (state) {
-          snapshots.push({
-            id,
-            status: state.status,
-            turn: state.turn,
-            maxTurns: state.maxTurns,
-            scenarioName: state.scenarioName,
-            scenarioDescription: state.scenarioDescription,
-            entities: state.entities || [],
-            log: state.log || [],
-            entityIndex: state.entityIndex,
-            waitingEntity: state.waitingEntity,
-            error: state.error,
-          });
-        }
-      } catch {
-        /* skip */
-      }
-    }
-
-    return snapshots.sort((a, b) => {
-      const tsA = parseInt(a.id.replace("sim-", ""), 10) || 0;
-      const tsB = parseInt(b.id.replace("sim-", ""), 10) || 0;
-      return tsB - tsA;
-    });
-  }
-
-  async regenerateAllEmbeddings(newProviderInstanceId?: string): Promise<void> {
-    const dbDir = path.resolve(process.cwd(), "data");
-    if (!fs.existsSync(dbDir)) return;
-
-    const files = fs.readdirSync(dbDir).filter(f => f.startsWith("sim-") && f.endsWith(".db"));
-
-    const list = ProviderManager.list();
-    let inst = newProviderInstanceId ? list.find((p) => p.id === newProviderInstanceId) : null;
-    if (!inst || inst.type !== "embedding") {
-      inst = ProviderManager.getActive("embedding");
-    }
-
-    const key = inst ? inst.apiKey : (process.env.GOOGLE_API_KEY || "");
-    const providerName = inst ? inst.providerName : "google-genai";
-    const modelName = inst ? inst.modelName : undefined;
-
-    let embeddingProvider: IEmbeddingProvider;
-    if (providerName === "google-genai") {
-      embeddingProvider = new GeminiEmbeddingProvider(key, modelName);
-    } else {
-      embeddingProvider = new MockEmbeddingProvider(modelName);
-    }
-
-    for (const file of files) {
-      const dbPath = path.join(dbDir, file);
-      const id = file.replace(".db", "");
-      const activeSession = this.sessions.get(id);
-      const db = activeSession ? activeSession.db : new Database(dbPath);
-
-      try {
-        const rows = db.prepare(`SELECT id, content FROM ledger_entries`).all() as { id: string; content: string }[];
-        
-        for (const row of rows) {
-          const vector = await embeddingProvider.embed(row.content);
-          const buffer = Buffer.from(new Float32Array(vector).buffer);
-          db.prepare(`UPDATE ledger_entries SET embedding = ? WHERE id = ?`).run(buffer, row.id);
-        }
-      } catch (err) {
-        console.error(`Failed to regenerate embeddings for ${file}:`, err);
-      } finally {
-        if (!activeSession) {
-          db.close();
-        }
-      }
-    }
-  }
-
-  private save(session: SimSession): void {
-    const state: SavedState = {
-      scenarioName: session.scenarioName,
-      scenarioDescription: session.scenarioDescription,
-      turn: session.turn,
-      maxTurns: session.maxTurns,
-      entities: session.entities,
-      playerEntityId: session.playerEntityId,
-      entityIndex: session.entityIndex,
-      status: session.status,
-      error: session.error,
-      waitingEntity: session.waitingEntity,
-      aliasDoneForTurn: session.aliasDoneForTurn,
-      log: session.log,
-      providerMappings: session.providerMappings,
-    };
-
-    session.db.prepare(`
-      CREATE TABLE IF NOT EXISTS gui_meta (
-        id TEXT PRIMARY KEY,
-        state_json TEXT
-      )
-    `).run();
-
-    session.db.prepare(`
-      INSERT INTO gui_meta (id, state_json)
-      VALUES (?, ?)
-      ON CONFLICT(id) DO UPDATE SET state_json = excluded.state_json
-    `).run(session.worldInstanceId, JSON.stringify(state));
-  }
-
-  getSnapshot(id: string): SimSnapshot | null {
-    const session = this.sessions.get(id);
-    return session ? this.snapshot(session) : null;
-  }
-
-  private snapshot(session: SimSession): SimSnapshot {
-    return {
-      id: session.worldInstanceId,
-      status: session.status,
-      turn: session.turn,
-      maxTurns: session.maxTurns,
-      scenarioName: session.scenarioName,
-      scenarioDescription: session.scenarioDescription,
-      entities: session.entities,
-      log: session.log,
-      entityIndex: session.entityIndex,
-      waitingEntity: session.waitingEntity,
-      error: session.error,
-    };
-  }
-}
-
-export const simulationManager = new SimulationManager();

apps/gui/src/lib/simulation/alias-handoff.ts

@@ -0,0 +1,99 @@
+import { HandoffEngine, checkHandoffTrigger } from "@omnia/memory";
+import type { SimSession } from "./types";
+
+/**
+ * Runs the HandoffEngine for every agent entity that has accumulated enough
+ * buffer entries to warrant a handoff (compression to the Memory Ledger).
+ */
+export async function runHandoffResolution(session: SimSession): Promise<void> {
+  const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+  if (!worldState) throw new Error("World state lost");
+
+  const handoffEngine = new HandoffEngine(
+    session.handoffProvider,
+    session.embeddingProvider,
+    session.bufferRepo,
+    session.ledgerRepo,
+  );
+
+  const entities = Array.from(worldState.entities.values());
+  for (const entity of entities) {
+    if (!entity.isAgent) continue;
+
+    const bufferEntries = session.bufferRepo.listForOwner(entity.id);
+    const maxContext =
+      session.handoffProvider.maxContext !== undefined
+        ? session.handoffProvider.maxContext
+        : 32768;
+
+    const trigger = checkHandoffTrigger(
+      entity,
+      bufferEntries,
+      worldState.clock.get(),
+      maxContext,
+    );
+    if (trigger !== "none") {
+      const ran = await handoffEngine.runHandoff(
+        entity,
+        bufferEntries,
+        worldState.clock.get(),
+      );
+      if (ran) {
+        const lastResult = handoffEngine.lastResult;
+        const lastCall =
+          session.handoffProvider.lastCalls?.[
+            (session.handoffProvider.lastCalls?.length || 0) - 1
+          ];
+        const info = session.entities.find((e) => e.id === entity.id);
+        const entityName = info?.name || entity.id;
+
+        session.log.push({
+          turn: session.turn,
+          entityId: entity.id,
+          entityName,
+          narrativeProse: `Handoff triggered for ${entityName}: memories were transferred from Cognitive Buffer to Memory Ledger`,
+          intents: [],
+          timestamp: worldState.clock.get().toISOString(),
+          isHandoff: true,
+          rawPrompt: lastResult
+            ? {
+                systemPrompt: lastResult.systemPrompt || "",
+                userContext: lastResult.userContext || "",
+                components: lastResult.promptComponents,
+              }
+            : undefined,
+          usage: lastCall?.usage,
+          handoffResult: (lastResult?.response || lastCall?.response) as any,
+        });
+      }
+    }
+  }
+}
+
+/**
+ * For every agent that shares a location with another entity they haven't
+ * previously encountered, generates a first-person alias description and
+ * persists it on the viewing entity.
+ */
+export async function runAliasResolution(session: SimSession): Promise<void> {
+  const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+  if (!worldState) throw new Error("World state lost");
+
+  const entities = Array.from(worldState.entities.values());
+  for (const viewer of entities) {
+    if (!viewer.isAgent) continue;
+    if (!viewer.locationId) continue;
+
+    for (const target of entities) {
+      if (viewer.id === target.id) continue;
+      if (
+        target.locationId === viewer.locationId &&
+        !viewer.aliases.has(target.id)
+      ) {
+        const alias = await session.aliasGenerator.generate(viewer, target);
+        viewer.aliases.set(target.id, alias);
+        session.coreRepo.saveEntity(viewer, worldState.id);
+      }
+    }
+  }
+}

apps/gui/src/lib/simulation/env.ts

@@ -0,0 +1,16 @@
+import dotenv from "dotenv";
+import path from "path";
+import fs from "fs";
+
+// Load .env from monorepo root or apps/gui/
+const cwd = process.cwd();
+const envCandidates = [
+  path.resolve(cwd, ".env"),
+  path.resolve(cwd, "../../.env"),
+];
+for (const c of envCandidates) {
+  if (fs.existsSync(c) && fs.statSync(c).isFile()) {
+    dotenv.config({ path: c });
+    break;
+  }
+}

apps/gui/src/lib/simulation/index.ts

@@ -0,0 +1,17 @@
+/**
+ * Barrel entry point for the simulation module.
+ *
+ * Consumers import from "@/lib/simulation" exactly as before — no import
+ * paths need to change anywhere in the codebase.
+ */
+import { SimulationManager } from "./simulation-manager";
+
+export const simulationManager = new SimulationManager();
+
+export type {
+  SimSnapshot,
+  EntityInfo,
+  LogEntry,
+  IntentInfo,
+  WaitingContext,
+} from "../simulation-types";

apps/gui/src/lib/simulation/provider-resolver.ts

@@ -0,0 +1,146 @@
+import {
+  MockLLMProvider,
+  MockEmbeddingProvider,
+  ProviderManager,
+  buildLLMProvider,
+  buildEmbeddingProvider,
+} from "@omnia/llm";
+import type {
+  ILLMProvider,
+  IEmbeddingProvider,
+  ModelProviderInstance,
+} from "@omnia/llm";
+
+// ---------------------------------------------------------------------------
+// Public types
+// ---------------------------------------------------------------------------
+
+export interface ResolvedProviders {
+  actorProvider: ILLMProvider;
+  validatorProvider: ILLMProvider;
+  decoderProvider: ILLMProvider;
+  timedeltaProvider: ILLMProvider;
+  handoffProvider: ILLMProvider;
+  embeddingProvider: IEmbeddingProvider;
+}
+
+export interface ProviderResolverOptions {
+  /**
+   * Pre-resolved generative instance to fall back to when ProviderManager has
+   * no active generative provider (e.g. when the caller already validated a
+   * specific provider during session creation).
+   */
+  fallbackInstance?: ModelProviderInstance | null;
+  /**
+   * When true, throws an Error if no provider can be resolved for a task.
+   * When false (default), falls back silently to MockLLMProvider / MockEmbeddingProvider.
+   */
+  required?: boolean;
+}
+
+// ---------------------------------------------------------------------------
+// Resolution logic
+// ---------------------------------------------------------------------------
+
+/**
+// Public API
+// ---------------------------------------------------------------------------
+
+/**
+ * Resolves all six LLM + embedding providers needed for a simulation session.
+ *
+ * Resolution order for each generative task:
+ *  1. Task-specific mapping from ProviderManager (via `mappings[task]`)
+ *  2. ProviderManager active generative instance
+ *  3. `fallbackInstance` (if supplied)
+ *  4. GOOGLE_API_KEY env var → auto-creates a temporary GeminiProvider
+ *  5. Throws (if `required`) or returns MockLLMProvider
+ */
+export function resolveProviders(
+  mappings: Record<string, string>,
+  options: ProviderResolverOptions = {},
+): ResolvedProviders {
+  const { fallbackInstance = null, required = false } = options;
+  const list = ProviderManager.list();
+  const activeGenerative =
+    ProviderManager.getActive("generative") ?? fallbackInstance ?? null;
+
+  const resolveGenerative = (task: string): ILLMProvider => {
+    const mappedId = mappings[task];
+    let inst: ModelProviderInstance | null = mappedId
+      ? (list.find((p) => p.id === mappedId) ?? null)
+      : null;
+
+    if (!inst || inst.type !== "generative") {
+      inst = activeGenerative;
+    }
+
+    if (!inst) {
+      const envKey = process.env.GOOGLE_API_KEY;
+      if (envKey) {
+        inst = ProviderManager.create(
+          "Default (Env)",
+          "google-genai",
+          envKey,
+          undefined,
+          "generative",
+        );
+      }
+    }
+
+    if (!inst) {
+      if (required) {
+        throw new Error(
+          `No active LLM Provider Instance found for task "${task}". Please configure a key in Settings first.`,
+        );
+      }
+      return new MockLLMProvider([]);
+    }
+
+    return buildLLMProvider(inst);
+  };
+
+  const resolveEmbedding = (): IEmbeddingProvider => {
+    const mappedId = mappings["embeddings"];
+    let inst: ModelProviderInstance | null = mappedId
+      ? (list.find((p) => p.id === mappedId) ?? null)
+      : null;
+
+    if (!inst || inst.type !== "embedding") {
+      inst = ProviderManager.getActive("embedding");
+    }
+
+    if (!inst) {
+      const envKey = process.env.GOOGLE_API_KEY;
+      if (envKey) {
+        inst = ProviderManager.create(
+          "Default Embed (Env)",
+          "google-genai",
+          envKey,
+          "gemini-embedding-001",
+          "embedding",
+        );
+      }
+    }
+
+    if (!inst) {
+      if (required) {
+        throw new Error(
+          `No active Embedding Provider Instance found. Please configure an embedding key in Settings first.`,
+        );
+      }
+      return new MockEmbeddingProvider(undefined);
+    }
+
+    return buildEmbeddingProvider(inst);
+  };
+
+  return {
+    actorProvider: resolveGenerative("actor-prose"),
+    validatorProvider: resolveGenerative("llm-validator"),
+    decoderProvider: resolveGenerative("intent-decoder"),
+    timedeltaProvider: resolveGenerative("timedelta"),
+    handoffProvider: resolveGenerative("handoff"),
+    embeddingProvider: resolveEmbedding(),
+  };
+}

apps/gui/src/lib/simulation/session-store.ts

@@ -0,0 +1,139 @@
+import Database from "better-sqlite3";
+import path from "path";
+import fs from "fs";
+import type { SimSession, SavedState } from "./types";
+import type { SimSnapshot } from "../simulation-types";
+
+export const DATA_DIR = path.resolve(process.cwd(), "data");
+
+// ---------------------------------------------------------------------------
+// Low-level read/write helpers
+// ---------------------------------------------------------------------------
+
+export function loadSessionState(
+  db: Database.Database,
+  id: string,
+): SavedState | null {
+  try {
+    db.prepare(
+      `CREATE TABLE IF NOT EXISTS gui_meta (
+        id TEXT PRIMARY KEY,
+        state_json TEXT
+      )`,
+    ).run();
+    const row = db
+      .prepare(`SELECT state_json FROM gui_meta WHERE id = ?`)
+      .get(id) as { state_json: string } | undefined;
+    return row ? (JSON.parse(row.state_json) as SavedState) : null;
+  } catch {
+    return null;
+  }
+}
+
+export function saveSession(session: SimSession): void {
+  const state: SavedState = {
+    scenarioName: session.scenarioName,
+    scenarioDescription: session.scenarioDescription,
+    turn: session.turn,
+    maxTurns: session.maxTurns,
+    entities: session.entities,
+    playerEntityId: session.playerEntityId,
+    entityIndex: session.entityIndex,
+    status: session.status,
+    error: session.error,
+    waitingEntity: session.waitingEntity,
+    aliasDoneForTurn: session.aliasDoneForTurn,
+    log: session.log,
+    providerMappings: session.providerMappings,
+  };
+
+  session.db
+    .prepare(
+      `CREATE TABLE IF NOT EXISTS gui_meta (
+        id TEXT PRIMARY KEY,
+        state_json TEXT
+      )`,
+    )
+    .run();
+
+  session.db
+    .prepare(
+      `INSERT INTO gui_meta (id, state_json)
+       VALUES (?, ?)
+       ON CONFLICT(id) DO UPDATE SET state_json = excluded.state_json`,
+    )
+    .run(session.worldInstanceId, JSON.stringify(state));
+}
+
+// ---------------------------------------------------------------------------
+// Session file management
+// ---------------------------------------------------------------------------
+
+export function deleteSessionFile(id: string): void {
+  const dbPath = path.join(DATA_DIR, `${id}.db`);
+  if (fs.existsSync(dbPath)) {
+    try {
+      fs.unlinkSync(dbPath);
+    } catch (err) {
+      console.error(`Failed to delete session file ${dbPath}:`, err);
+    }
+  }
+}
+
+/**
+ * Lists all saved simulation snapshots by scanning the data directory.
+ * Active in-memory sessions are snapshotted via the provided callback;
+ * inactive ones are read directly from their `.db` files.
+ */
+export function listSavedSessions(
+  activeSessions: Map<string, SimSession>,
+  snapshotFn: (session: SimSession) => SimSnapshot,
+): SimSnapshot[] {
+  if (!fs.existsSync(DATA_DIR)) return [];
+
+  const snapshots: SimSnapshot[] = [];
+  const files = fs
+    .readdirSync(DATA_DIR)
+    .filter((f) => f.startsWith("sim-") && f.endsWith(".db"));
+
+  for (const file of files) {
+    const id = file.replace(".db", "");
+    const dbPath = path.join(DATA_DIR, file);
+
+    const active = activeSessions.get(id);
+    if (active) {
+      snapshots.push(snapshotFn(active));
+      continue;
+    }
+
+    try {
+      const db = new Database(dbPath);
+      const state = loadSessionState(db, id);
+      db.close();
+
+      if (state) {
+        snapshots.push({
+          id,
+          status: state.status,
+          turn: state.turn,
+          maxTurns: state.maxTurns,
+          scenarioName: state.scenarioName,
+          scenarioDescription: state.scenarioDescription,
+          entities: state.entities || [],
+          log: state.log || [],
+          entityIndex: state.entityIndex,
+          waitingEntity: state.waitingEntity,
+          error: state.error,
+        });
+      }
+    } catch {
+      /* skip corrupt / in-use db files */
+    }
+  }
+
+  return snapshots.sort((a, b) => {
+    const tsA = parseInt(a.id.replace("sim-", ""), 10) || 0;
+    const tsB = parseInt(b.id.replace("sim-", ""), 10) || 0;
+    return tsB - tsA;
+  });
+}

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

@@ -0,0 +1,519 @@
+import "./env"; // Must be first — loads .env before any code reads process.env
+import Database from "better-sqlite3";
+import path from "path";
+import fs from "fs";
+import { SQLiteRepository } from "@omnia/core";
+import { BufferRepository, LedgerRepository } from "@omnia/memory";
+import { Architect, AliasDeltaGenerator } from "@omnia/architect";
+import { ProviderManager, buildEmbeddingProvider } from "@omnia/llm";
+import type { ModelProviderInstance, IEmbeddingProvider } from "@omnia/llm";
+import { ScenarioLoader } from "@omnia/scenario";
+import type { SimSnapshot } from "../simulation-types";
+import type { SimSession, EntityInfo } from "./types";
+import { resolveProviders } from "./provider-resolver";
+import {
+  DATA_DIR,
+  loadSessionState,
+  saveSession,
+  listSavedSessions,
+  deleteSessionFile,
+} from "./session-store";
+import {
+  preparePlayerTurn,
+  processNpcTurn,
+  executePlayerAction,
+} from "./turn-executor";
+import { runAliasResolution, runHandoffResolution } from "./alias-handoff";
+
+export class SimulationManager {
+  private sessions = new Map<string, SimSession>();
+
+  // ---------------------------------------------------------------------------
+  // Session lifecycle
+  // ---------------------------------------------------------------------------
+
+  async create(
+    scenarioPath: string,
+    playEntityName?: string,
+    providerInstanceId?: string,
+    customName?: string,
+  ): Promise<SimSnapshot> {
+    // Resolve or validate the active generative provider upfront so we can
+    // return a clean error snapshot before touching the filesystem.
+    let activeInstance: ModelProviderInstance | null = providerInstanceId
+      ? ProviderManager.list().find((p) => p.id === providerInstanceId) || null
+      : ProviderManager.getActive("generative");
+
+    if (!activeInstance) {
+      const envKey = process.env.GOOGLE_API_KEY;
+      if (envKey) {
+        activeInstance = ProviderManager.create(
+          "Default (Env)",
+          "google-genai",
+          envKey,
+          undefined,
+          "generative",
+        );
+      }
+    }
+    if (!activeInstance) {
+      return {
+        id: "",
+        status: "error",
+        turn: 0,
+        maxTurns: 20,
+        scenarioName: "",
+        scenarioDescription: "",
+        entities: [],
+        log: [],
+        entityIndex: 0,
+        error:
+          "No active LLM Provider Instance found. Please configure a key in Settings first.",
+      };
+    }
+
+    const scenarioJson = JSON.parse(fs.readFileSync(scenarioPath, "utf-8"));
+    const id = `sim-${Date.now()}`;
+
+    fs.mkdirSync(DATA_DIR, { recursive: true });
+    const dbPath = path.join(DATA_DIR, `${id}.db`);
+    const db = new Database(dbPath);
+    const coreRepo = new SQLiteRepository(db);
+    const bufferRepo = new BufferRepository(db);
+    const ledgerRepo = new LedgerRepository(db);
+    const loader = new ScenarioLoader(coreRepo, bufferRepo);
+
+    const worldInstanceId = id;
+    await loader.initializeWorld(scenarioJson, worldInstanceId);
+
+    const worldState = coreRepo.loadWorldState(worldInstanceId);
+    if (!worldState) {
+      db.close();
+      return {
+        id: "",
+        status: "error",
+        turn: 0,
+        maxTurns: 20,
+        scenarioName: "",
+        scenarioDescription: "",
+        entities: [],
+        log: [],
+        entityIndex: 0,
+        error: "Failed to load world state after initialization.",
+      };
+    }
+
+    // Build entity list
+    const rawEntities = Array.from(worldState.entities.values());
+    const entityInfos: EntityInfo[] = rawEntities.map((e) => ({
+      id: e.id,
+      name: (e.attributes.get("name")?.getValue() as string) || e.id,
+      isPlayer: false,
+      isAgent: e.isAgent,
+    }));
+
+    // Resolve player entity (exact match → name match → fuzzy)
+    let playerEntityId: string | undefined;
+    if (playEntityName) {
+      let matched = worldState.getEntity(playEntityName);
+      if (!matched) {
+        for (const ent of rawEntities) {
+          const nameAttr = ent.attributes.get("name")?.getValue() as
+            string | undefined;
+          if (nameAttr?.toLowerCase() === playEntityName.toLowerCase()) {
+            matched = ent;
+            break;
+          }
+        }
+      }
+      if (!matched) {
+        for (const ent of rawEntities) {
+          const nameAttr = ent.attributes.get("name")?.getValue() as
+            string | undefined;
+          if (
+            nameAttr?.toLowerCase().includes(playEntityName.toLowerCase()) ||
+            ent.id.toLowerCase().includes(playEntityName.toLowerCase())
+          ) {
+            matched = ent;
+            break;
+          }
+        }
+      }
+      if (matched) {
+        playerEntityId = matched.id;
+        const info = entityInfos.find((e) => e.id === matched!.id);
+        if (info) info.isPlayer = true;
+      }
+    }
+
+    const mappings = ProviderManager.getMappings();
+    const {
+      actorProvider,
+      validatorProvider,
+      decoderProvider,
+      timedeltaProvider,
+      handoffProvider,
+      embeddingProvider,
+    } = resolveProviders(mappings, { fallbackInstance: activeInstance });
+
+    const architect = new Architect(
+      { validator: validatorProvider, timedelta: timedeltaProvider },
+      coreRepo,
+    );
+    const aliasGenerator = new AliasDeltaGenerator(actorProvider);
+
+    const session: SimSession = {
+      db,
+      dbPath,
+      coreRepo,
+      bufferRepo,
+      ledgerRepo,
+      worldInstanceId,
+      scenarioName: customName || scenarioJson.name,
+      scenarioDescription: scenarioJson.description || "",
+      turn: 1,
+      maxTurns: 20,
+      entities: entityInfos,
+      playerEntityId,
+      entityIndex: 0,
+      actorProvider,
+      validatorProvider,
+      decoderProvider,
+      timedeltaProvider,
+      handoffProvider,
+      embeddingProvider,
+      architect,
+      aliasGenerator,
+      log: [],
+      status: "running",
+      aliasDoneForTurn: false,
+      providerMappings: mappings,
+    };
+
+    this.sessions.set(id, session);
+    return this.snapshot(session);
+  }
+
+  async load(id: string): Promise<SimSnapshot | null> {
+    const active = this.sessions.get(id);
+    if (active) return this.snapshot(active);
+
+    const dbPath = path.join(DATA_DIR, `${id}.db`);
+    if (!fs.existsSync(dbPath)) return null;
+
+    try {
+      const db = new Database(dbPath);
+      const state = loadSessionState(db, id);
+      if (!state) {
+        db.close();
+        return null;
+      }
+
+      const mappings = state.providerMappings || {};
+      const {
+        actorProvider,
+        validatorProvider,
+        decoderProvider,
+        timedeltaProvider,
+        handoffProvider,
+        embeddingProvider,
+      } = resolveProviders(mappings, { required: true });
+
+      const coreRepo = new SQLiteRepository(db);
+      const bufferRepo = new BufferRepository(db);
+      const ledgerRepo = new LedgerRepository(db);
+      const architect = new Architect(
+        { validator: validatorProvider, timedelta: timedeltaProvider },
+        coreRepo,
+      );
+      const aliasGenerator = new AliasDeltaGenerator(actorProvider);
+
+      const session: SimSession = {
+        db,
+        dbPath,
+        coreRepo,
+        bufferRepo,
+        ledgerRepo,
+        worldInstanceId: id,
+        scenarioName: state.scenarioName,
+        scenarioDescription: state.scenarioDescription,
+        turn: state.turn,
+        maxTurns: state.maxTurns,
+        entities: state.entities || [],
+        playerEntityId: state.playerEntityId,
+        entityIndex: state.entityIndex,
+        actorProvider,
+        validatorProvider,
+        decoderProvider,
+        timedeltaProvider,
+        handoffProvider,
+        embeddingProvider,
+        architect,
+        aliasGenerator,
+        log: state.log || [],
+        status: state.status,
+        error: state.error,
+        waitingEntity: state.waitingEntity,
+        aliasDoneForTurn: state.aliasDoneForTurn || false,
+        providerMappings: mappings,
+      };
+
+      this.sessions.set(id, session);
+      return this.snapshot(session);
+    } catch (err) {
+      console.error(`Failed to load session ${id}:`, err);
+      return null;
+    }
+  }
+
+  close(id: string): void {
+    const session = this.sessions.get(id);
+    if (session) {
+      session.db.close();
+      this.sessions.delete(id);
+    }
+  }
+
+  deleteSession(id: string): void {
+    const session = this.sessions.get(id);
+    if (session) {
+      session.db.close();
+      this.sessions.delete(id);
+    }
+    deleteSessionFile(id);
+  }
+
+  listSavedSessions(): SimSnapshot[] {
+    return listSavedSessions(this.sessions, (s) => this.snapshot(s));
+  }
+
+  getSnapshot(id: string): SimSnapshot | null {
+    const session = this.sessions.get(id);
+    return session ? this.snapshot(session) : null;
+  }
+
+  async rename(id: string, newName: string): Promise<SimSnapshot | null> {
+    let session = this.sessions.get(id);
+    if (!session) {
+      await this.load(id);
+      session = this.sessions.get(id);
+    }
+    if (!session) return null;
+
+    session.scenarioName = newName;
+    saveSession(session);
+    return this.snapshot(session);
+  }
+
+  // ---------------------------------------------------------------------------
+  // Simulation stepping
+  // ---------------------------------------------------------------------------
+
+  async step(id: string): Promise<SimSnapshot | null> {
+    const session = this.sessions.get(id);
+    if (!session) return null;
+    if (session.status !== "running") return this.snapshot(session);
+
+    try {
+      if (session.turn > session.maxTurns) {
+        session.status = "done";
+        saveSession(session);
+        return this.snapshot(session);
+      }
+
+      // Start of turn: alias + handoff resolution before any entity acts
+      if (!session.aliasDoneForTurn && session.entityIndex === 0) {
+        await runAliasResolution(session);
+        await runHandoffResolution(session);
+        session.aliasDoneForTurn = true;
+        saveSession(session);
+        return this.snapshot(session);
+      }
+
+      // End of turn: advance to next turn
+      if (session.entityIndex >= session.entities.length) {
+        session.turn++;
+        session.entityIndex = 0;
+        session.aliasDoneForTurn = false;
+        saveSession(session);
+        return this.snapshot(session);
+      }
+
+      const info = session.entities[session.entityIndex];
+
+      if (!info.isAgent) {
+        session.entityIndex++;
+        saveSession(session);
+        return this.snapshot(session);
+      }
+
+      if (info.isPlayer) {
+        await preparePlayerTurn(session, info);
+        saveSession(session);
+        return this.snapshot(session);
+      }
+
+      await processNpcTurn(session, info);
+      session.entityIndex++;
+    } catch (err) {
+      session.status = "error";
+      session.error = err instanceof Error ? err.message : String(err);
+    }
+
+    saveSession(session);
+    return this.snapshot(session);
+  }
+
+  async submitPlayerAction(
+    id: string,
+    prose: string,
+  ): Promise<SimSnapshot | null> {
+    const session = this.sessions.get(id);
+    if (!session) return null;
+    if (session.status !== "waiting_player") return this.snapshot(session);
+    if (!session.waitingEntity) return this.snapshot(session);
+
+    const ctx = session.waitingEntity;
+    session.waitingEntity = undefined;
+    session.status = "running";
+
+    try {
+      await executePlayerAction(session, ctx, prose);
+      session.entityIndex++;
+    } catch (err) {
+      session.status = "error";
+      session.error = err instanceof Error ? err.message : String(err);
+    }
+
+    saveSession(session);
+    return this.snapshot(session);
+  }
+
+  // ---------------------------------------------------------------------------
+  // Utility
+  // ---------------------------------------------------------------------------
+
+  async regenerateAllEmbeddings(newProviderInstanceId?: string): Promise<void> {
+    if (!fs.existsSync(DATA_DIR)) return;
+
+    const files = fs
+      .readdirSync(DATA_DIR)
+      .filter((f) => f.startsWith("sim-") && f.endsWith(".db"));
+
+    const list = ProviderManager.list();
+    let inst = newProviderInstanceId
+      ? (list.find((p) => p.id === newProviderInstanceId) ?? null)
+      : null;
+    if (!inst || inst.type !== "embedding") {
+      inst = ProviderManager.getActive("embedding");
+    }
+
+    if (!inst) {
+      const envKey = process.env.GOOGLE_API_KEY || "";
+      if (envKey) {
+        inst = {
+          id: "regen-env-fallback",
+          name: "Gemini Embed (Env)",
+          providerName: "google-genai",
+          apiKey: envKey,
+          isActive: true,
+          modelName: "gemini-embedding-001",
+          type: "embedding",
+          maxContext: 0,
+        };
+      } else {
+        inst = {
+          id: "regen-mock-fallback",
+          name: "Mock Embed (Fallback)",
+          providerName: "mock",
+          apiKey: "",
+          isActive: true,
+          modelName: undefined,
+          type: "embedding",
+          maxContext: 0,
+        };
+      }
+    }
+
+    const embeddingProvider: IEmbeddingProvider = buildEmbeddingProvider(inst);
+
+    for (const file of files) {
+      const dbPath = path.join(DATA_DIR, file);
+      const fileId = file.replace(".db", "");
+      const activeSession = this.sessions.get(fileId);
+      const db = activeSession ? activeSession.db : new Database(dbPath);
+
+      try {
+        const rows = db
+          .prepare(`SELECT id, content FROM ledger_entries`)
+          .all() as { id: string; content: string }[];
+
+        for (const row of rows) {
+          const vector = await embeddingProvider.embed(row.content);
+          const buffer = Buffer.from(new Float32Array(vector).buffer);
+          db.prepare(
+            `UPDATE ledger_entries SET embedding = ? WHERE id = ?`,
+          ).run(buffer, row.id);
+        }
+      } catch (err) {
+        console.error(`Failed to regenerate embeddings for ${file}:`, err);
+      } finally {
+        if (!activeSession) db.close();
+      }
+    }
+  }
+
+  // ---------------------------------------------------------------------------
+  // Private
+  // ---------------------------------------------------------------------------
+
+  private snapshot(session: SimSession): SimSnapshot {
+    const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+    const hydratedEntities = session.entities.map((e) => {
+      const actualEntity = worldState?.getEntity(e.id);
+      const aliases: Record<string, string> = {};
+      if (actualEntity) {
+        for (const [targetId, alias] of actualEntity.aliases.entries()) {
+          aliases[targetId] = alias;
+        }
+      }
+      return {
+        ...e,
+        aliases,
+      };
+    });
+
+    // Get current location from the waiting entity
+    let currentLocation: string | undefined;
+    if (
+      worldState &&
+      session.entityIndex >= 0 &&
+      session.entityIndex < session.entities.length
+    ) {
+      const currentEntityInfo = session.entities[session.entityIndex];
+      const actualEntity = worldState.getEntity(currentEntityInfo.id);
+      if (actualEntity?.locationId) {
+        const location = worldState.getLocation(actualEntity.locationId);
+        if (location) {
+          currentLocation = location.id;
+        }
+      }
+    }
+
+    return {
+      id: session.worldInstanceId,
+      status: session.status,
+      turn: session.turn,
+      maxTurns: session.maxTurns,
+      scenarioName: session.scenarioName,
+      scenarioDescription: session.scenarioDescription,
+      entities: hydratedEntities,
+      log: session.log,
+      entityIndex: session.entityIndex,
+      waitingEntity: session.waitingEntity,
+      error: session.error,
+      worldTime: worldState?.clock.get().toISOString(),
+      currentLocation,
+    };
+  }
+}

apps/gui/src/lib/simulation/turn-executor.ts

@@ -0,0 +1,379 @@
+import {
+  ActorAgent,
+  ActorPromptBuilder,
+  buildBufferEntryForIntent,
+} from "@omnia/actor";
+import type { IActorProseGenerator } from "@omnia/actor";
+import type { SimSession } from "./types";
+import type {
+  EntityInfo,
+  IntentInfo,
+  LogEntry,
+  WaitingContext,
+  ValidatorCall,
+} from "../simulation-types";
+
+// ---------------------------------------------------------------------------
+// Internal helpers
+// ---------------------------------------------------------------------------
+
+/** Prose generator that returns a fixed player-supplied string verbatim. */
+class FixedProseGenerator implements IActorProseGenerator {
+  constructor(private prose: string) {}
+
+  async generate(
+    entityId: string,
+    systemPrompt: string,
+    userContext: string,
+  ): Promise<string> {
+    void entityId;
+    void systemPrompt;
+    void userContext;
+    return this.prose;
+  }
+}
+
+/**
+ * Processes every intent produced by an actor turn:
+ * - Validates via Architect
+ * - Appends to actor's own buffer
+ * - Fan-outs to co-located observers for dialogue/action intents
+ *
+ * Extracted to eliminate verbatim duplication between NPC and player paths.
+ */
+async function processIntents(
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  intents: any[],
+  actorEntityId: string,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  entity: any,
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  worldState: any,
+  session: SimSession,
+): Promise<{ intentInfos: IntentInfo[]; validatorCalls: ValidatorCall[] }> {
+  const intentInfos: IntentInfo[] = [];
+  const validatorCalls: ValidatorCall[] = [];
+
+  for (let i = 0; i < intents.length; i++) {
+    const intent = intents[i];
+    const outcome = await session.architect.processIntent(worldState, intent);
+    const ts = worldState.clock.get().toISOString();
+
+    intentInfos.push({
+      type: intent.type,
+      content: intent.content,
+      modifiers: intent.modifiers || [],
+      targetIds: intent.targetIds,
+      isValid: outcome.isValid,
+      reason: outcome.reason,
+      minutesToAdvance: outcome.timeDelta?.minutesToAdvance,
+    });
+
+    if (intent.type === "action" && session.architect.validator.lastResult) {
+      const lastResult = session.architect.validator.lastResult;
+      let usage = undefined;
+      if (
+        session.validatorProvider.lastCalls &&
+        session.validatorProvider.lastCalls.length > 0
+      ) {
+        const valCall =
+          session.validatorProvider.lastCalls[
+            session.validatorProvider.lastCalls.length - 1
+          ];
+        usage = valCall.usage;
+      }
+
+      validatorCalls.push({
+        intentIndex: i,
+        intentContent: intent.content,
+        prompt: {
+          systemPrompt: lastResult.systemPrompt || "",
+          userContext: lastResult.userContext || "",
+          components: lastResult.components,
+        },
+        response: {
+          isValid: outcome.isValid,
+          reason: outcome.reason,
+        },
+        usage,
+      });
+    } else {
+      const reason =
+        intent.type === "dialogue"
+          ? "Dialogue intents represent verbal/communication actions and are automatically valid."
+          : "Monologue/thought intents represent internal reflections and bypass validation.";
+
+      validatorCalls.push({
+        intentIndex: i,
+        intentContent: intent.content,
+        response: {
+          isValid: true,
+          reason: outcome.reason || reason,
+        },
+      });
+    }
+
+    const actorEntry = buildBufferEntryForIntent(intent, ts, entity.locationId);
+    if (intent.type === "action") {
+      actorEntry.outcome = { isValid: outcome.isValid, reason: outcome.reason };
+    }
+    session.bufferRepo.save(actorEntry);
+
+    // Fan-out observable events to co-located entities
+    if (
+      entity.locationId &&
+      (intent.type === "dialogue" || intent.type === "action")
+    ) {
+      for (const [, other] of worldState.entities) {
+        if (
+          other.id !== actorEntityId &&
+          other.locationId === entity.locationId
+        ) {
+          const observerEntry = buildBufferEntryForIntent(
+            intent,
+            ts,
+            entity.locationId,
+          );
+          if (intent.type === "action") {
+            observerEntry.outcome = {
+              isValid: outcome.isValid,
+              reason: outcome.reason,
+            };
+          }
+          session.bufferRepo.save({ ...observerEntry, ownerId: other.id });
+        }
+      }
+    }
+  }
+
+  return { intentInfos, validatorCalls };
+}
+
+// ---------------------------------------------------------------------------
+// Exported turn functions
+// ---------------------------------------------------------------------------
+
+/**
+ * Builds the prompt for the player entity and sets the session to
+ * `waiting_player` so the next client call can supply the prose.
+ */
+export async function preparePlayerTurn(
+  session: SimSession,
+  info: EntityInfo,
+): Promise<void> {
+  const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+  if (!worldState) throw new Error("World state lost");
+
+  const entity = worldState.getEntity(info.id);
+  if (!entity) throw new Error(`Entity "${info.id}" not found`);
+
+  const promptBuilder = new ActorPromptBuilder(
+    session.bufferRepo,
+    session.ledgerRepo,
+    20,
+  );
+  const { systemPrompt, userContext } = promptBuilder.build(worldState, entity);
+
+  session.waitingEntity = {
+    entityId: info.id,
+    name: info.name,
+    systemPrompt,
+    userContext,
+  };
+  session.status = "waiting_player";
+}
+
+/**
+ * Runs an autonomous NPC turn: generates prose via ActorAgent, validates
+ * and persists all intents, and appends a LogEntry to the session.
+ */
+export async function processNpcTurn(
+  session: SimSession,
+  info: EntityInfo,
+): Promise<void> {
+  const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+  if (!worldState) throw new Error("World state lost");
+
+  const entity = worldState.getEntity(info.id);
+  if (!entity) throw new Error(`Entity "${info.id}" not found`);
+
+  const actor = new ActorAgent(
+    { actor: session.actorProvider, decoder: session.decoderProvider },
+    session.bufferRepo,
+    session.ledgerRepo,
+    20,
+  );
+  const result = await actor.act(worldState, entity);
+
+  const entry: LogEntry = {
+    turn: session.turn,
+    entityId: info.id,
+    entityName: info.name,
+    narrativeProse: result.narrativeProse,
+    intents: [],
+    timestamp: worldState.clock.get().toISOString(),
+    rawPrompt: {
+      systemPrompt: result.systemPrompt || "",
+      userContext: result.userContext || "",
+      components: result.promptComponents,
+    },
+  };
+
+  if (
+    session.actorProvider.lastCalls &&
+    session.actorProvider.lastCalls.length > 0
+  ) {
+    const actorCall =
+      session.actorProvider.lastCalls[
+        session.actorProvider.lastCalls.length - 1
+      ];
+    entry.usage = actorCall.usage;
+  }
+
+  if (
+    session.decoderProvider.lastCalls &&
+    session.decoderProvider.lastCalls.length > 0
+  ) {
+    const decoderCall =
+      session.decoderProvider.lastCalls[
+        session.decoderProvider.lastCalls.length - 1
+      ];
+    const proseHeader = "=== NARRATIVE PROSE ===";
+    const userContext = decoderCall.userContext;
+    const idx = userContext.indexOf(proseHeader);
+
+    let contextStr = userContext;
+    let proseStr = "";
+
+    if (idx !== -1) {
+      contextStr = userContext.substring(0, idx).trim();
+      proseStr = userContext.substring(idx).trim();
+    }
+
+    entry.decoderPrompt = {
+      systemPrompt: decoderCall.systemPrompt,
+      userContext: decoderCall.userContext,
+      components: [
+        {
+          label: "System Prompt",
+          type: "system",
+          content: decoderCall.systemPrompt,
+        },
+        { label: "Decoder Context", type: "world", content: contextStr },
+        { label: "Narrative Prose", type: "input", content: proseStr },
+      ],
+    };
+    entry.decoderUsage = decoderCall.usage;
+  }
+
+  const { intentInfos, validatorCalls } = await processIntents(
+    result.intents.intents,
+    info.id,
+    entity,
+    worldState,
+    session,
+  );
+  entry.intents = intentInfos;
+  entry.validatorCalls = validatorCalls;
+  entry.decodedIntents = result.intents.intents.map((intent) => ({
+    type: intent.type,
+    content: intent.content,
+    modifiers: intent.modifiers || [],
+    targetIds: intent.targetIds,
+  }));
+
+  session.log.push(entry);
+  session.coreRepo.saveWorldState(worldState);
+}
+
+/**
+ * Executes the player's turn using the prose they supplied.
+ * Uses a `FixedProseGenerator` so the ActorAgent bypasses its LLM call and
+ * returns the player's text directly.
+ */
+export async function executePlayerAction(
+  session: SimSession,
+  ctx: WaitingContext,
+  prose: string,
+): Promise<void> {
+  const worldState = session.coreRepo.loadWorldState(session.worldInstanceId);
+  if (!worldState) throw new Error("World state lost");
+
+  const entity = worldState.getEntity(ctx.entityId);
+  if (!entity) throw new Error(`Player entity "${ctx.entityId}" not found`);
+
+  const playerActor = new ActorAgent(
+    { actor: session.actorProvider, decoder: session.decoderProvider },
+    session.bufferRepo,
+    session.ledgerRepo,
+    20,
+    new FixedProseGenerator(prose),
+  );
+
+  const result = await playerActor.act(worldState, entity);
+
+  const entry: LogEntry = {
+    turn: session.turn,
+    entityId: ctx.entityId,
+    entityName: ctx.name,
+    narrativeProse: result.narrativeProse,
+    intents: [],
+    timestamp: worldState.clock.get().toISOString(),
+    rawPrompt: {
+      systemPrompt: result.systemPrompt || ctx.systemPrompt,
+      userContext: result.userContext || ctx.userContext,
+      components: result.promptComponents,
+    },
+  };
+
+  if (
+    session.decoderProvider.lastCalls &&
+    session.decoderProvider.lastCalls.length > 0
+  ) {
+    const call =
+      session.decoderProvider.lastCalls[
+        session.decoderProvider.lastCalls.length - 1
+      ];
+    const proseHeader = "=== NARRATIVE PROSE ===";
+    const userContext = call.userContext;
+    const idx = userContext.indexOf(proseHeader);
+
+    let contextStr = userContext;
+    let proseStr = "";
+
+    if (idx !== -1) {
+      contextStr = userContext.substring(0, idx).trim();
+      proseStr = userContext.substring(idx).trim();
+    }
+
+    entry.decoderPrompt = {
+      systemPrompt: call.systemPrompt,
+      userContext: call.userContext,
+      components: [
+        { label: "System Prompt", type: "system", content: call.systemPrompt },
+        { label: "Decoder Context", type: "world", content: contextStr },
+        { label: "Narrative Prose", type: "input", content: proseStr },
+      ],
+    };
+    entry.decoderUsage = call.usage;
+  }
+
+  const { intentInfos, validatorCalls: playerValCalls } = await processIntents(
+    result.intents.intents,
+    ctx.entityId,
+    entity,
+    worldState,
+    session,
+  );
+  entry.intents = intentInfos;
+  entry.validatorCalls = playerValCalls;
+  entry.decodedIntents = result.intents.intents.map((intent) => ({
+    type: intent.type,
+    content: intent.content,
+    modifiers: intent.modifiers || [],
+    targetIds: intent.targetIds,
+  }));
+
+  session.log.push(entry);
+  session.coreRepo.saveWorldState(worldState);
+}

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

@@ -0,0 +1,68 @@
+import type Database from "better-sqlite3";
+import type { SQLiteRepository } from "@omnia/core";
+import type { BufferRepository, LedgerRepository } from "@omnia/memory";
+import type { Architect, AliasDeltaGenerator } from "@omnia/architect";
+import type { ILLMProvider, IEmbeddingProvider } from "@omnia/llm";
+import type { EntityInfo, LogEntry, WaitingContext } from "../simulation-types";
+
+export type {
+  EntityInfo,
+  IntentInfo,
+  LogEntry,
+  SimSnapshot,
+  WaitingContext,
+} from "../simulation-types";
+
+// ---------------------------------------------------------------------------
+// Persisted state (written to sqlite gui_meta table as JSON)
+// ---------------------------------------------------------------------------
+
+export interface SavedState {
+  scenarioName: string;
+  scenarioDescription: string;
+  turn: number;
+  maxTurns: number;
+  entities: EntityInfo[];
+  playerEntityId: string | undefined;
+  entityIndex: number;
+  status: "running" | "waiting_player" | "done" | "error";
+  error?: string;
+  waitingEntity?: WaitingContext;
+  aliasDoneForTurn: boolean;
+  log: LogEntry[];
+  providerMappings: Record<string, string>;
+}
+
+// ---------------------------------------------------------------------------
+// In-memory session (held in SimulationManager.sessions Map)
+// ---------------------------------------------------------------------------
+
+export interface SimSession {
+  db: Database.Database;
+  dbPath: string;
+  coreRepo: SQLiteRepository;
+  bufferRepo: BufferRepository;
+  ledgerRepo: LedgerRepository;
+  worldInstanceId: string;
+  scenarioName: string;
+  scenarioDescription: string;
+  turn: number;
+  maxTurns: number;
+  entities: EntityInfo[];
+  playerEntityId: string | undefined;
+  entityIndex: number;
+  actorProvider: ILLMProvider;
+  validatorProvider: ILLMProvider;
+  decoderProvider: ILLMProvider;
+  timedeltaProvider: ILLMProvider;
+  handoffProvider: ILLMProvider;
+  embeddingProvider: IEmbeddingProvider;
+  architect: Architect;
+  aliasGenerator: AliasDeltaGenerator;
+  log: LogEntry[];
+  status: "running" | "waiting_player" | "done" | "error";
+  error?: string;
+  waitingEntity?: WaitingContext;
+  aliasDoneForTurn: boolean;
+  providerMappings: Record<string, string>;
+}

apps/gui/src/lib/utils.ts

@@ -4,3 +4,41 @@ import { twMerge } from "tailwind-merge";
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));
 }
+
+export function formatSimDate(isoString: string): 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");
+    return `${yyyy}-${mm}-${dd}`;
+  } catch {
+    return isoString;
+  }
+}
+
+export function formatSimTimeHM(isoString: string): string {
+  try {
+    const d = new Date(isoString);
+    if (isNaN(d.getTime())) return isoString;
+    const hh = String(d.getUTCHours());
+    const mm = String(d.getUTCMinutes()).padStart(2, "0");
+    return `${hh}:${mm}`;
+  } catch {
+    return isoString;
+  }
+}
+
+export function getClockIcon(isoString: string): string {
+  try {
+    const d = new Date(isoString);
+    if (isNaN(d.getTime())) return "/clock_day_icon.png";
+    const hour = d.getUTCHours();
+    return hour >= 6 && hour < 18
+      ? "/clock_day_icon.png"
+      : "/clock_night_icon.png";
+  } catch {
+    return "/clock_day_icon.png";
+  }
+}

apps/gui/tsconfig.json

@@ -1,11 +1,7 @@
 {
   "compilerOptions": {
     "target": "ES2022",
-    "lib": [
-      "dom",
-      "dom.iterable",
-      "esnext"
-    ],
+    "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
     "strict": true,
@@ -23,9 +19,7 @@
       }
     ],
     "paths": {
-      "@/*": [
-        "./src/*"
-      ]
+      "@/*": ["./src/*"]
     }
   },
   "include": [
@@ -35,7 +29,5 @@
     ".next/types/**/*.ts",
     ".next/dev/types/**/*.ts"
   ],
-  "exclude": [
-    "node_modules"
-  ]
+  "exclude": ["node_modules"]
 }

content/demo/scenarios/talking-room.json

@@ -72,16 +72,37 @@
       ],
       "initialMemories": [
         {
-          "id": "alpha-wake",
-          "timestamp": "2026-07-09T07:58:00.000Z",
+          "id": "ab3f29d2-cf11-4111-9a99-b13c126d123e",
+          "timestamp": "2026-07-01T07:58:00.000Z",
           "locationId": "white-room",
           "intent": {
             "type": "monologue",
-            "originalText": "I didn't have a choice. I would have been sent to jail if I hadn't agreed to do this experiement.",
-            "description": "",
+            "content": "I didn't have a choice. I would have been sent to jail if I hadn't agreed to do this experiment.",
             "actorId": "7c9b83b3-8cfb-4e89-8d77-626a5757d591",
             "targetIds": []
           }
+        },
+        {
+          "id": "10ak29d2-as11-9811-9a99-b13c126d123e",
+          "timestamp": "2026-07-09T06:00:00.000Z",
+          "locationId": "white-room",
+          "intent": {
+            "type": "action",
+            "content": "entity@7c9b83b3-8cfb-4e89-8d77-626a5757d591[I] woke up today in the room and saw entity@bf3f29d2-cf11-4b11-9a99-b13c126d400e[another man]!",
+            "actorId": "7c9b83b3-8cfb-4e89-8d77-626a5757d591",
+            "targetIds": ["bf3f29d2-cf11-4b11-9a99-b13c126d400e"]
+          }
+        },
+        {
+          "id": "zz3f29d2-as11-9811-9a99-b13c126d123e",
+          "timestamp": "2026-07-09T07:58:00.000Z",
+          "locationId": "white-room",
+          "intent": {
+            "type": "action",
+            "content": "entity@bf3f29d2-cf11-4b11-9a99-b13c126d400e[I] wake up from my sleep.",
+            "actorId": "bf3f29d2-cf11-4b11-9a99-b13c126d400e",
+            "targetIds": []
+          }
         }
       ]
     },
@@ -119,13 +140,12 @@
       ],
       "initialMemories": [
         {
-          "id": "beta-wake",
-          "timestamp": "2026-07-09T07:58:30.000Z",
+          "id": "zx1f29d2-cf11-4111-9a99-b13c126d123e",
+          "timestamp": "2026-07-09T07:58:00.000Z",
           "locationId": "white-room",
           "intent": {
             "type": "action",
-            "originalText": "Why can't I remember anything before the research agreement. It's like my memory was erased.",
-            "description": "",
+            "content": "entity@bf3f29d2-cf11-4b11-9a99-b13c126d400e[I] wake up in an unfamiliar place.",
             "actorId": "bf3f29d2-cf11-4b11-9a99-b13c126d400e",
             "targetIds": []
           }

docker-compose.yml

@@ -0,0 +1,15 @@
+services:
+  omnia-gui:
+    build:
+      context: .
+      dockerfile: apps/gui/Dockerfile
+    ports:
+      - "3000:3000"
+    environment:
+      - NODE_ENV=production
+      - GOOGLE_API_KEY=${GOOGLE_API_KEY:-}
+    volumes:
+      - omnia-data:/app/apps/gui/data
+
+volumes:
+  omnia-data:

docs

@@ -1 +1 @@
-web/docs/src
+web/docs/src/content/docs

eslint.config.mjs

@@ -5,7 +5,12 @@ import tseslint from "typescript-eslint";
 
 export default [
   {
-    ignores: ["**/dist/**", "**/node_modules/**", "**/.astro/**", "**/.next/**"],
+    ignores: [
+      "**/dist/**",
+      "**/node_modules/**",
+      "**/.astro/**",
+      "**/.next/**",
+    ],
   },
 
   js.configs.recommended,

package.json

@@ -19,7 +19,8 @@
     "watch": "tsc -b --watch",
     "test": "vitest run --project unit",
     "test:watch": "vitest --project unit",
-    "test:evals": "vitest run --project evals"
+    "test:evals": "vitest run --project evals",
+    "setup-provider": "node packages/llm/dist/bin/setup-provider.js"
   },
   "keywords": [],
   "author": "sortedcord",
@@ -27,7 +28,7 @@
   "devEngines": {
     "packageManager": {
       "name": "pnpm",
-      "version": "^11.9.0",
+      "version": "11.15.1",
       "onFail": "download"
     }
   },
@@ -47,9 +48,15 @@
     "zod": "^4.4.3"
   },
   "dependencies": {
+    "@langchain/anthropic": "^0.3.11",
+    "@langchain/deepseek": "^1.1.5",
     "@langchain/google-genai": "^2.2.0",
+    "@langchain/groq": "^1.3.1",
+    "@langchain/ollama": "^0.2.3",
+    "@langchain/openai": "^0.3.17",
     "@langchain/openrouter": "^0.4.3",
     "@types/node": "^20.19.43",
+    "compromise": "^14.16.0",
     "dotenv": "^17.4.2"
   }
 }

packages/actor/package.json

@@ -11,6 +11,7 @@
     "@omnia/intent": "workspace:*",
     "@omnia/llm": "workspace:*",
     "@omnia/memory": "workspace:*",
+    "@omnia/voice": "workspace:*",
     "zod": "^4.4.3"
   }
 }

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

@@ -4,7 +4,6 @@ import {
   WorldState,
   naturalizeTime,
   serializeSubjectiveWorldState,
-  resolveAlias,
 } from "@omnia/core";
 import {
   BufferEntry,
@@ -13,6 +12,8 @@ import {
   LedgerEntry,
   LedgerRepository,
 } from "@omnia/memory";
+import { hydrate } from "@omnia/voice";
+import { PromptComponent, IPromptBuilder, PromptBreakdown } from "@omnia/llm";
 
 /**
  * Zod schema for the structured response expected from the actor LLM.
@@ -33,17 +34,19 @@ export type ActorResponse = z.infer<typeof ActorResponseSchema>;
  *
  * The prompt is strictly epistemically bounded: the entity only sees what
  * it is allowed to see (public attributes + private attributes explicitly
- * ACL'd to it), its own recent memory buffer, and the entities co-located
+ * ACL'd to it), its own Cognitive Buffer, and the entities co-located
  * with it. System UUIDs are surfaced as subjective aliases.
  */
-export class ActorPromptBuilder {
+export class ActorPromptBuilder implements IPromptBuilder<
+  [WorldState, Entity]
+> {
   /**
-   * @param bufferRepo  Used to fetch the actor's recent memory. Optional —
+   * @param bufferRepo  Used to fetch the actor's Cognitive Buffer. 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.
+   * @param ledgerRepo  Used to fetch Memory Ledger entries. Optional.
+   * @param memoryLimit Maximum number of recent Cognitive Buffer entries to inject.
    *                    Defaults to 20.
-   * @param ledgerLimit Maximum number of long-term memories to retrieve.
+   * @param ledgerLimit Maximum number of Memory Ledger entries to retrieve.
    *                    Defaults to 5.
    */
   constructor(
@@ -56,13 +59,20 @@ export class ActorPromptBuilder {
   /**
    * Assembles the system prompt and user context for a given entity.
    */
-  build(
-    worldState: WorldState,
-    entity: Entity,
-  ): { systemPrompt: string; userContext: string } {
+  /**
+   * Assembles the system prompt and user context for a given entity.
+   */
+  /**
+   * Assembles the system prompt and user context for a given entity.
+   */
+  build(worldState: WorldState, entity: Entity): PromptBreakdown {
     const systemPrompt = this.buildSystemPrompt();
-    const userContext = this.buildUserContext(worldState, entity);
-    return { systemPrompt, userContext };
+    const { userContext, components } = this.buildUserContext(
+      worldState,
+      entity,
+      systemPrompt,
+    );
+    return { systemPrompt, userContext, components };
   }
 
   private buildSystemPrompt(): string {
@@ -76,60 +86,92 @@ Your output is a short block of narrative prose describing what your character d
 
 Guidelines:
 - 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.
 - 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.
+- 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
+- Only describe your character's own actions, spoken words, and internal reactions. Do NOT narrate the environment or your surroundings, or other characters' actions.
+- Be clear about who or what you are interacting with.
 ".
 `.trim();
   }
 
-  private buildUserContext(worldState: WorldState, entity: Entity): string {
-    const sections: string[] = [];
+  private buildUserContext(
+    worldState: WorldState,
+    entity: Entity,
+    systemPrompt: string,
+  ): {
+    userContext: string;
+    components: PromptComponent[];
+  } {
     const now = worldState.clock.get();
 
-    // --- Subjective present time ---
-    sections.push(
-      `=== CURRENT MOMENT ===\nIt is ${now.toISOString()} right now.`,
-    );
-
-    // --- Subjective world state (self + perceived entities + co-location) ---
-    sections.push(
-      `=== THE WORLD AS YOU PERCEIVE IT ===\n${serializeSubjectiveWorldState(worldState, entity.id)}`,
-    );
+    // --- Subjective present time & world state ---
+    const momentStr = `=== CURRENT MOMENT ===\nIt is ${now.toISOString()} right now.`;
+    const perceivedStr = `=== THE WORLD AS YOU PERCEIVE IT ===\n${serializeSubjectiveWorldState(worldState, entity.id)}`;
+    const worldInfo = `${momentStr}\n\n${perceivedStr}`;
 
     // Fetch recent buffer entries once
     let recentEntries: BufferEntry[] = [];
     if (this.bufferRepo) {
       try {
         recentEntries = this.bufferRepo.listForOwner(entity.id);
-      } catch {}
+      } catch {
+        // bufferRepo may not be available
+      }
     }
 
-    // --- Recent memory ---
-    const memorySection = this.buildMemorySection(entity, recentEntries, now);
-    if (memorySection) {
-      sections.push(memorySection);
-    }
-
-    // --- Recalled Long-Term memory ---
+    // --- Recalled Memory Ledger ---
     const ledgerSection = this.buildLedgerSection(
       worldState,
       entity,
       recentEntries,
       now,
     );
-    if (ledgerSection) {
-      sections.push(ledgerSection);
+    const memoryLedger = ledgerSection || "";
+
+    // --- Cognitive Buffer ---
+    const memorySection = this.buildCognitiveBufferSection(
+      entity,
+      recentEntries,
+      now,
+    );
+    const cognitiveBuffer = memorySection || "";
+
+    // Assemble final user context
+    const parts: string[] = [worldInfo];
+    if (memoryLedger) parts.push(memoryLedger);
+    if (cognitiveBuffer) parts.push(cognitiveBuffer);
+    const userContext = parts.join("\n\n");
+
+    const components: PromptComponent[] = [
+      { label: "System Prompt", type: "system", content: systemPrompt },
+      { label: "World Info", type: "world", content: worldInfo },
+    ];
+    if (memoryLedger) {
+      components.push({
+        label: "Memory Ledger",
+        type: "memories",
+        content: memoryLedger,
+      });
+    }
+    if (cognitiveBuffer) {
+      components.push({
+        label: "Cognitive Buffer",
+        type: "events",
+        content: cognitiveBuffer,
+      });
     }
 
-    return sections.join("\n\n");
+    return {
+      userContext,
+      components,
+    };
   }
 
-  private buildMemorySection(
+  private buildCognitiveBufferSection(
     entity: Entity,
     entries: BufferEntry[],
     now: Date,
@@ -137,7 +179,7 @@ Guidelines:
     if (!this.bufferRepo) return null;
 
     if (entries.length === 0) {
-      return `=== RECENT EVENTS ===\n(No recent events recorded.)`;
+      return `=== COGNITIVE BUFFER ===\n(No entries recorded.)`;
     }
 
     const recent = entries.slice(-this.memoryLimit);
@@ -145,9 +187,16 @@ Guidelines:
     let currentGroup: string | null = null;
 
     for (const entry of recent) {
-      const serialized = serializeSubjectiveBufferEntry(entry, entity);
+      let serialized = serializeSubjectiveBufferEntry(entry, entity);
       const when = naturalizeTime(now, new Date(entry.timestamp));
 
+      if (
+        entry.intent.actorId === entity.id &&
+        entry.intent.type === "dialogue"
+      ) {
+        serialized = `I said: ${serialized}`;
+      }
+
       if (when !== currentGroup) {
         currentGroup = when;
         const header = when.charAt(0).toUpperCase() + when.slice(1);
@@ -157,7 +206,7 @@ Guidelines:
       groupedLines.push(`  - ${serialized}`);
     }
 
-    return `=== RECENT EVENTS ===\n${groupedLines.join("\n")}`;
+    return `=== COGNITIVE BUFFER ===\n${groupedLines.join("\n")}`;
   }
 
   private buildLedgerSection(
@@ -237,12 +286,7 @@ Guidelines:
     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);
-      }
+      let content = hydrate(entry.content, entity);
       if (entry.locationId) {
         content += ` (at ${entry.locationId})`;
       }
@@ -261,6 +305,6 @@ Guidelines:
       }
     }
 
-    return `=== YOUR MEMORIES ===\n${groupedLines.join("\n")}`;
+    return `=== MEMORY LEDGER ===\n${groupedLines.join("\n")}`;
   }
 }

packages/actor/src/actor.ts

@@ -1,23 +1,22 @@
 import { Entity, WorldState } from "@omnia/core";
-import { ILLMProvider } from "@omnia/llm";
+import { ILLMProvider, PromptComponent } from "@omnia/llm";
+import { BufferEntry, BufferRepository, LedgerRepository } from "@omnia/memory";
+import { Intent, IntentDecoder, IntentSequence } from "@omnia/intent";
 import {
-  BufferEntry,
-  BufferRepository,
-  LedgerRepository,
-} 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>;
 }
 
 /**
@@ -26,7 +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,
@@ -51,6 +54,9 @@ export interface ActorTurnResult {
   narrativeProse: string;
   /** The decoded intent sequence (split/classified from the prose). */
   intents: IntentSequence;
+  systemPrompt?: string;
+  userContext?: string;
+  promptComponents?: PromptComponent[];
 }
 
 /**
@@ -73,7 +79,7 @@ export class ActorAgent {
 
   constructor(
     llmProvider: ILLMProvider | { actor: ILLMProvider; decoder: ILLMProvider },
-    bufferRepo?: BufferRepository,
+    private bufferRepo?: BufferRepository,
     ledgerRepo?: LedgerRepository,
     memoryLimit?: number,
     generator?: IActorProseGenerator,
@@ -89,7 +95,11 @@ export class ActorAgent {
       decoderProv = llmProvider;
     }
 
-    this.promptBuilder = new ActorPromptBuilder(bufferRepo, ledgerRepo, memoryLimit);
+    this.promptBuilder = new ActorPromptBuilder(
+      bufferRepo,
+      ledgerRepo,
+      memoryLimit,
+    );
     this.decoder = new IntentDecoder(decoderProv);
     this.generator = generator ?? new LLMActorProseGenerator(actorProv);
     this.llmProvider = actorProv;
@@ -102,11 +112,14 @@ 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> {
-    const { systemPrompt, userContext } = this.promptBuilder.build(
+  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, components } = this.promptBuilder.build(
       worldState,
       entity,
     );
@@ -117,15 +130,27 @@ export class ActorAgent {
       userContext,
     );
 
+    const recentEntries = this.bufferRepo
+      ? this.bufferRepo.listForOwner(entity.id)
+      : [];
+    const recentIntents = recentEntries
+      .filter((e) => e.intent.actorId !== entity.id)
+      .slice(-3)
+      .map((e) => e.intent);
+
     const intents = await this.decoder.decode(
       worldState,
       entity.id,
       narrativeProse,
+      recentIntents,
     );
 
     return {
       narrativeProse,
       intents,
+      systemPrompt,
+      userContext,
+      promptComponents: components,
     };
   }
 }

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

@@ -1,17 +1,17 @@
 import { describe, it, expect, beforeEach, afterEach } from "vitest";
 import Database from "better-sqlite3";
-import { WorldState, Entity, AttributeVisibility } from "@omnia/core";
+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", () => {
+describe("ActorPromptBuilder with Memory Ledger 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 (
@@ -31,9 +31,12 @@ describe("ActorPromptBuilder with Long-Term Memory Integration", () => {
     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"));
-    
+  it("should inject both Cognitive Buffer and recalled Memory Ledger entries 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");
@@ -52,19 +55,19 @@ describe("ActorPromptBuilder with Long-Term Memory Integration", () => {
         type: "dialogue",
         actorId: "alice",
         targetIds: ["bob"],
-        originalText: "Hello there",
-        description: "Alice greets Bob",
+        content: "entity@alice[I] say 'Hello there' to entity@bob[Bob]",
+        modifiers: [],
       },
     });
 
-    // 2. Populate ledger repository (long-term memory)
+    // 2. Populate ledger repository (Memory Ledger)
     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.",
+      content: "entity@alice[Alice] met entity@bob[bob] at the tavern.",
       quotes: ["I am a ranger."],
       importance: 9,
       embedding: [],
@@ -73,26 +76,29 @@ describe("ActorPromptBuilder with Long-Term Memory Integration", () => {
     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 Cognitive Buffer exists
+    expect(userContext).toContain("=== COGNITIVE BUFFER ===");
+    expect(userContext).toContain("I said: I say 'Hello there' to Strider");
 
-    // 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.");
+    // Check Memory Ledger exists
+    expect(userContext).toContain("=== MEMORY LEDGER ===");
+    // Bob should be resolved to Strider, and alice to I in the ledger content
+    expect(userContext).toContain("I 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 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 ===");
+    expect(userContext).toContain("=== COGNITIVE BUFFER ===");
+    expect(userContext).not.toContain("=== MEMORY LEDGER ===");
   });
 });

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/actor/tsconfig.json

@@ -9,6 +9,7 @@
     { "path": "../core" },
     { "path": "../intent" },
     { "path": "../llm" },
-    { "path": "../memory" }
+    { "path": "../memory" },
+    { "path": "../voice" }
   ]
 }

packages/architect/package.json

@@ -10,6 +10,7 @@
     "@omnia/core": "workspace:*",
     "@omnia/llm": "workspace:*",
     "@omnia/intent": "workspace:*",
+    "@omnia/voice": "workspace:*",
     "zod": "^4.4.3"
   }
 }

packages/architect/src/architect.ts

@@ -9,11 +9,12 @@ export interface ProcessResult extends ValidationResult {
 }
 
 export class Architect {
-  private validator: LLMValidator;
+  public validator: LLMValidator;
   private timeDeltaGenerator: TimeDeltaGenerator;
 
   constructor(
-    llmProvider: ILLMProvider | { validator: ILLMProvider; timedelta: ILLMProvider },
+    llmProvider:
+      ILLMProvider | { validator: ILLMProvider; timedelta: ILLMProvider },
     private repo?: SQLiteRepository,
   ) {
     let valProv: ILLMProvider;
@@ -46,22 +47,26 @@ export class Architect {
    * Processes, validates, generates deltas, applies them to the world state,
    * and persists the changes to the database.
    *
-   * "monologue" intents are internal thoughts — they bypass validation and
+   * "monologue" and "thought" intents are internal thoughts — they bypass validation and
    * time-delta generation entirely: the clock does not advance, the world
    * state is not mutated or persisted. The caller is responsible for writing
-   * the monologue to the actor's memory buffer.
+   * the monologue/thought to the actor's Cognitive Buffer.
    */
   async processIntent(
     worldState: WorldState,
     intent: Intent,
   ): Promise<ProcessResult> {
-    // 0. Monologue intents are purely internal — short-circuit before any
+    // 0. Monologue/thought intents are purely internal — short-circuit before any
     // validation or world mutation.
-    if (intent.type === "monologue") {
+    if (intent.type === "monologue" || intent.type === "thought") {
       return {
         isValid: true,
-        reason: "Monologue intent bypasses validation (internal thought, not perceivable).",
-        timeDelta: { minutesToAdvance: 0, explanation: "Internal thought — no time elapsed." },
+        reason:
+          "Monologue/thought intent bypasses validation (internal thought, not perceivable).",
+        timeDelta: {
+          minutesToAdvance: 0,
+          explanation: "Internal thought — no time elapsed.",
+        },
       };
     }
 

packages/architect/src/delta.ts

@@ -2,6 +2,7 @@ import { z } from "zod";
 import { WorldState, serializeObjectiveWorldState } from "@omnia/core";
 import { ILLMProvider } from "@omnia/llm";
 import { Intent } from "@omnia/intent";
+import { hydrateObjective } from "@omnia/voice";
 
 export const TimeDeltaSchema = z.object({
   minutesToAdvance: z.number().int().nonnegative(),
@@ -18,6 +19,22 @@ 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" || intent.type === "thought") {
+      return {
+        minutesToAdvance: 0,
+        explanation:
+          "Monologue/thought 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.
@@ -30,6 +47,8 @@ Return a structured JSON object containing:
 - "explanation": a brief explanation of why this amount of time is appropriate.
 `.trim();
 
+    const objectiveContent = hydrateObjective(intent.content, worldState);
+
     const userContext = `
 === CURRENT WORLD STATE ===
 Current Time: ${worldState.clock.get().toISOString()}
@@ -39,8 +58,7 @@ ${serializeObjectiveWorldState(worldState)}
 === ACTION ===
 Actor ID: ${intent.actorId}
 Type: ${intent.type}
-Description: "${intent.description}"
-Original Text: "${intent.originalText}"
+Content: "${objectiveContent}"
 Target IDs: ${intent.targetIds.join(", ") || "(None)"}
 `.trim();
 

packages/architect/src/index.ts

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

packages/architect/src/llm-validator-prompt-builder.ts

@@ -0,0 +1,59 @@
+import { WorldState, serializeObjectiveWorldState } from "@omnia/core";
+import { Intent } from "@omnia/intent";
+import { hydrateObjective } from "@omnia/voice";
+import { PromptBreakdown, PromptComponent, IPromptBuilder } from "@omnia/llm";
+
+/**
+ * Prompt builder for the LLM Validator (World Architect).
+ * Separates prompt generation, structure, and component breakdowns.
+ */
+export class LLMValidatorPromptBuilder implements IPromptBuilder<
+  [WorldState, Intent]
+> {
+  build(worldState: WorldState, intent: Intent): PromptBreakdown {
+    const serializedWorld = serializeObjectiveWorldState(worldState);
+
+    const systemPrompt = `
+You are the World Architect, a deterministic and objective judge of reality, physics, and narration for a simulation game.
+Your task is to judge whether a proposed action (Intent) by an actor is physically and logically possible given the current objective state of the world.
+Exempt dialogue or speech actions from validation (consider them always valid).
+Enforce logical boundaries such as:
+- Spatial boundaries (an actor cannot grab an object in another location unless they are there).
+- Physical boundaries (an actor cannot open a locked drawer without a key or breaking it).
+- State Boundaries (an actor cannot perform a task if their state doesn't allow them to do so).
+- State/Attribute constraints.
+- An actor can perform actions on themselves as long as it follows the boundaries stated above.
+
+You must respond with a JSON object containing:
+- "isValid": boolean indicating if the action is possible/allowed.
+- "reason": a very short explanation of why the action is allowed or denied.
+`.trim();
+
+    const objectiveContent = hydrateObjective(intent.content, worldState);
+
+    const worldStateSection = `=== CURRENT WORLD STATE ===\nCurrent Time: ${worldState.clock.get().toISOString()}\nEntities & Attributes:\n${serializedWorld}`;
+    const proposedActionSection = `=== PROPOSED ACTION ===\nActor ID: ${intent.actorId}\nType: ${intent.type}\nContent: "${objectiveContent}"\nTarget IDs: ${intent.targetIds.join(", ") || "(None)"}`;
+
+    const userContext = `${worldStateSection}\n\n${proposedActionSection}\n\nDecide if the proposed action is logically valid and physically possible.`;
+
+    const components: PromptComponent[] = [
+      { label: "System Prompt", type: "system", content: systemPrompt },
+      {
+        label: "Current World State",
+        type: "world",
+        content: worldStateSection,
+      },
+      {
+        label: "Proposed Action",
+        type: "input",
+        content: proposedActionSection,
+      },
+    ];
+
+    return {
+      systemPrompt,
+      userContext,
+      components,
+    };
+  }
+}

packages/architect/src/llm-validator.ts

@@ -1,7 +1,8 @@
 import { z } from "zod";
-import { WorldState, serializeObjectiveWorldState } from "@omnia/core";
-import { ILLMProvider } from "@omnia/llm";
+import { WorldState } from "@omnia/core";
+import { ILLMProvider, PromptBreakdown } from "@omnia/llm";
 import { Intent } from "@omnia/intent";
+import { LLMValidatorPromptBuilder } from "./llm-validator-prompt-builder.js";
 
 export const ValidationResultSchema = z.object({
   isValid: z.boolean(),
@@ -11,12 +12,17 @@ export const ValidationResultSchema = z.object({
 export type ValidationResult = z.infer<typeof ValidationResultSchema>;
 
 export class LLMValidator {
-  constructor(private llmProvider: ILLMProvider) {}
+  public lastResult: PromptBreakdown | null = null;
+  private promptBuilder: LLMValidatorPromptBuilder;
+
+  constructor(private llmProvider: ILLMProvider) {
+    this.promptBuilder = new LLMValidatorPromptBuilder();
+  }
 
   /**
    * Validates an action intent against the objective world state.
    *
-   * "monologue" intents must never reach this validator — they are internal
+   * "monologue" and "thought" intents must never reach this validator — they are internal
    * thoughts that bypass validation entirely (see Architect.processIntent).
    * This guard exists as a defensive safeguard.
    */
@@ -24,11 +30,14 @@ export class LLMValidator {
     worldState: WorldState,
     intent: Intent,
   ): Promise<ValidationResult> {
-    // Defensive guard: monologue intents bypass validation.
-    if (intent.type === "monologue") {
+    this.lastResult = null;
+
+    // Defensive guard: monologue and thought intents bypass validation.
+    if (intent.type === "monologue" || intent.type === "thought") {
       return {
         isValid: true,
-        reason: "Monologue intents are internal thoughts and bypass validation.",
+        reason:
+          "Monologue/thought intents are internal thoughts and bypass validation.",
       };
     }
 
@@ -40,40 +49,16 @@ export class LLMValidator {
       };
     }
 
-    // 1. Serialize the objective world state for the LLM
-    const serializedWorld = serializeObjectiveWorldState(worldState);
+    const { systemPrompt, userContext, components } = this.promptBuilder.build(
+      worldState,
+      intent,
+    );
 
-    // 2. Build the prompts
-    const systemPrompt = `
-You are the World Architect, a deterministic and objective judge of reality, physics, and narration for a simulation game.
-Your task is to judge whether a proposed action (Intent) by an actor is physically and logically possible given the current objective state of the world.
-Exempt dialogue or speech actions from validation (consider them always valid).
-Enforce logical boundaries such as:
-- Spatial boundaries (an actor cannot grab an object in another location unless they are there).
-- Physical boundaries (an actor cannot open a locked drawer without a key or breaking it).
-- State Boundaries (an actor cannot perform a task if their state doesn't allow them to do so).
-- State/Attribute constraints.
-
-You must respond with a JSON object containing:
-- "isValid": boolean indicating if the action is possible/allowed.
-- "reason": a concise explanation of why the action is allowed or denied.
-`.trim();
-
-    const userContext = `
-=== CURRENT WORLD STATE ===
-Current Time: ${worldState.clock.get().toISOString()}
-Entities & Attributes:
-${serializedWorld}
-
-=== PROPOSED ACTION ===
-Actor ID: ${intent.actorId}
-Type: ${intent.type}
-Description: "${intent.description}"
-Original Text: "${intent.originalText}"
-Target IDs: ${intent.targetIds.join(", ") || "(None)"}
-
-Decide if the proposed action is logically valid and physically possible.
-`.trim();
+    this.lastResult = {
+      systemPrompt,
+      userContext,
+      components,
+    };
 
     // structured call via the LLM provider
     const response = await this.llmProvider.generateStructuredResponse({

packages/architect/tests/architect.test.ts

@@ -1,16 +1,22 @@
-import { describe, test, expect } from "vitest";
 import Database from "better-sqlite3";
-import { WorldState, Entity, SQLiteRepository, AttributeVisibility } from "@omnia/core";
+import { describe, test, expect } from "vitest";
+import {
+  WorldState,
+  Entity,
+  SQLiteRepository,
+  AttributeVisibility,
+} from "@omnia/core";
 import { MockLLMProvider } from "@omnia/llm";
-import { Architect, AliasDeltaGenerator } from "@omnia/architect";
 import { Intent } from "@omnia/intent";
+import { Architect, AliasDeltaGenerator } from "../src/index.js";
 
-describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
-  test("returns valid response when LLM validates intent as successful", async () => {
+describe("World Architect Validation Tests (Tier 1)", () => {
+  test("returns valid response when LLM confirms the intent", async () => {
     const world = new WorldState("world-1");
     const alice = new Entity("alice");
     world.addEntity(alice);
 
+    // Setup mock LLM response
     const mockResponse = {
       isValid: true,
       reason: "Alice is in the room and the chest is unlocked.",
@@ -20,9 +26,7 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
 
     const intent: Intent = {
       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.",
+      content: "entity@alice[I] open the chest and read the scroll",
       actorId: "alice",
       targetIds: [],
       modifiers: [],
@@ -51,9 +55,7 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
 
     const intent: Intent = {
       type: "action",
-      originalText: "unlock the gate and escape",
-      description: "Unlock the gate and escape",
-      selfDescription: "You unlock the gate and escape.",
+      content: "entity@bob[I] unlock the gate and escape",
       actorId: "bob",
       targetIds: [],
       modifiers: [],
@@ -74,9 +76,7 @@ describe("Architect & LLMValidator Unit Tests (Tier 1)", () => {
 
     const intent: Intent = {
       type: "action",
-      originalText: "haunt the mansion",
-      description: "Haunt the mansion",
-      selfDescription: "You haunt the mansion.",
+      content: "entity@ghost[I] haunt the mansion",
       actorId: "ghost",
       targetIds: [],
       modifiers: [],
@@ -96,7 +96,10 @@ 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);
 
@@ -106,17 +109,21 @@ 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);
 
     const intent: Intent = {
       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.",
+      content: "entity@alice[I] pick the lock of the wooden chest",
       actorId: "alice",
       targetIds: [],
       modifiers: [],
@@ -131,7 +138,9 @@ 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
@@ -151,16 +160,17 @@ 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);
 
     const intent: Intent = {
       type: "action",
-      originalText: "run away",
-      description: "Run away",
-      selfDescription: "You run away.",
+      content: "entity@bob[I] run away",
       actorId: "bob",
       targetIds: [],
       modifiers: [],
@@ -188,8 +198,16 @@ 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/architect/tsconfig.json

@@ -8,6 +8,7 @@
   "references": [
     { "path": "../core" },
     { "path": "../llm" },
-    { "path": "../intent" }
+    { "path": "../intent" },
+    { "path": "../voice" }
   ]
 }

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;
   }
 }