feat: Task decomposition for Tailwind/Radix/shadcn foundation setup

Decomposed "Foundation Setup - Install Dependencies & Configure Tailwind" phase into 6 executable tasks: 1. Install Tailwind CSS, PostCSS & Autoprefixer 2. Map MUI theme to Tailwind design tokens 3. Setup CSS variables for dynamic theming 4. Install Radix UI primitives 5. Initialize shadcn/ui and setup component directory 6. Move MUI to devDependencies and verify setup Tasks follow logical dependency chain with final human verification checkpoint before proceeding with component migration. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-02-10 09:48:51 +01:00
parent da4152264c
commit 342b490fe7
83 changed files with 3200 additions and 913 deletions
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,54 +1,50 @@
 # Codewalk District

-Multi-agent workspace for orchestrating multiple Claude Code agents.
+Multi-agent workspace for orchestrating multiple AI coding agents working in parallel on a shared codebase.

-## Database
+**Architecture**: [docs/architecture.md](docs/architecture.md) — system diagram, module map, entity relationships, tech stack.

-Schema is defined in `src/db/schema.ts` using drizzle-orm. Migrations are managed by drizzle-kit.
+## Quick Reference

-See [docs/database-migrations.md](docs/database-migrations.md) for the full migration workflow, rules, and commands.
+| Module | Docs | Path |
+|--------|------|------|
+| Agent (lifecycle, providers, accounts) | [docs/agent.md](docs/agent.md) | `src/agent/` |
+| Database (schema, repositories) | [docs/database.md](docs/database.md) | `src/db/` |
+| Server & API (tRPC procedures) | [docs/server-api.md](docs/server-api.md) | `src/server/`, `src/trpc/`, `src/coordination/` |
+| Frontend (React UI) | [docs/frontend.md](docs/frontend.md) | `packages/web/` |
+| CLI & Config | [docs/cli-config.md](docs/cli-config.md) | `src/cli/`, `src/config/` |
+| Dispatch & Events | [docs/dispatch-events.md](docs/dispatch-events.md) | `src/dispatch/`, `src/events/` |
+| Git, Process, Logging | [docs/git-process-logging.md](docs/git-process-logging.md) | `src/git/`, `src/process/`, `src/logger/`, `src/logging/` |
+| Testing | [docs/testing.md](docs/testing.md) | `src/test/` |
+| Database Migrations | [docs/database-migrations.md](docs/database-migrations.md) | `drizzle/` |
+| Logging Guide | [docs/logging.md](docs/logging.md) | `src/logger/` |

-Key rule: **never use raw SQL for schema initialization.** Always use `drizzle-kit generate` and the migration system.
+Pre-implementation design docs are archived in `docs/archive/`.

-## Logging
+## Key Rules

-Structured logging via pino. See [docs/logging.md](docs/logging.md) for full details.
-
-Key rule: use `createModuleLogger()` from `src/logger/index.ts` for backend logging. Keep `console.log` for CLI user-facing output only.
+- **Database**: Never use raw SQL for schema initialization. Use `drizzle-kit generate` and the migration system. See [docs/database-migrations.md](docs/database-migrations.md).
+- **Logging**: Use `createModuleLogger()` from `src/logger/index.ts`. Keep `console.log` for CLI user-facing output only.
+- **Hexagonal architecture**: Repository ports in `src/db/repositories/*.ts`, Drizzle adapters in `src/db/repositories/drizzle/*.ts`. All re-exported from `src/db/index.ts`.
+- **tRPC context**: Optional repos accessed via `require*Repository()` helpers in `src/trpc/routers/_helpers.ts`.

 ## Build

-After completing any change to server-side code (`src/**`), rebuild and re-link the `cw` binary:
-
 ```sh
 npm run build && npm link
 ```

+Run after any change to server-side code (`src/**`).
+
 ## Testing

-### Unit Tests
-
 ```sh
-npm test
+npm test                    # Unit tests
+REAL_CLAUDE_TESTS=1 npm test -- src/test/integration/real-providers/ --test-timeout=300000  # Real provider tests (~$0.50)
 ```

-### E2E Tests (Real CLI)
+See [docs/testing.md](docs/testing.md) for details.

-Real provider integration tests call actual CLI tools and incur API costs. They are **skipped by default**.
+## Documentation Maintenance

-```sh
-# Claude tests (~$0.50, ~3 min)
-REAL_CLAUDE_TESTS=1 npm test -- src/test/integration/real-providers/ --test-timeout=300000
-
-# Codex tests only
-REAL_CODEX_TESTS=1 npm test -- src/test/integration/real-providers/codex-manager.test.ts --test-timeout=300000
-
-# Both providers
-REAL_CLAUDE_TESTS=1 REAL_CODEX_TESTS=1 npm test -- src/test/integration/real-providers/ --test-timeout=300000
-```
-
-Test files in `src/test/integration/real-providers/`:
- `claude-manager.test.ts` - Spawn, output parsing, session resume
- `schema-retry.test.ts` - Schema validation, JSON extraction, retry logic
- `crash-recovery.test.ts` - Server restart simulation
- `codex-manager.test.ts` - Codex provider tests
+**After every code change, update the relevant docs/ file.** Documentation must stay in sync with implementation. When adding a new module, table, tRPC procedure, component, or CLI command, update the corresponding doc. When refactoring, update affected docs and remove stale information.
--- a/docs/agent.md
+++ b/docs/agent.md
@@ -0,0 +1,103 @@
+# Agent Module
+
+`src/agent/` — Agent lifecycle management, output parsing, multi-provider support, and account failover.
+
+## File Inventory
+
+| File | Purpose |
+|------|---------|
+| `types.ts` | Core types: `AgentInfo`, `AgentManager` interface, `SpawnOptions`, `StreamEvent` |
+| `manager.ts` | `MultiProviderAgentManager` — main orchestrator class |
+| `process-manager.ts` | `AgentProcessManager` — worktree creation, command building, detached spawn |
+| `output-handler.ts` | `OutputHandler` — JSONL stream parsing, completion detection, proposal creation |
+| `file-tailer.ts` | `FileTailer` — watches output files, emits line events |
+| `file-io.ts` | Input/output file I/O: frontmatter writing, signal.json reading, tiptap conversion |
+| `markdown-to-tiptap.ts` | Markdown to Tiptap JSON conversion using MarkdownManager |
+| `index.ts` | Public exports, `ClaudeAgentManager` deprecated alias |
+
+### Sub-modules
+
+| Directory | Purpose |
+|-----------|---------|
+| `providers/` | Provider registry, presets (7 providers), config types |
+| `providers/parsers/` | Provider-specific output parsers (Claude JSONL, generic line) |
+| `accounts/` | Account discovery, config dir setup, credential management, usage API |
+| `credentials/` | `AccountCredentialManager` — credential injection per account |
+| `lifecycle/` | `LifecycleController` — retry policy, signal recovery, missing signal instructions |
+| `prompts/` | Mode-specific prompt builders (execute, discuss, breakdown, decompose, refine) |
+
+## Key Flows
+
+### Spawning an Agent
+
+1. **tRPC procedure** calls `agentManager.spawn(options)`
+2. Manager generates alias (adjective-animal), creates DB record
+3. `AgentProcessManager.createWorktree()` — creates git worktree at `.cw-worktrees/agent/<alias>/`
+4. `file-io.writeInputFiles()` — writes `.cw/input/` with initiative, pages, phase, task as frontmatter
+5. Provider config builds spawn command via `buildSpawnCommand()`
+6. `spawnDetached()` — launches detached child process with file output redirection
+7. `FileTailer` watches output file, fires `onEvent` and `onRawContent` callbacks
+8. `OutputHandler.handleStreamEvent()` processes each JSONL line
+9. DB record updated with PID, output file path, session ID
+10. `agent:spawned` event emitted
+
+### Completion Detection
+
+1. `FileTailer` detects process exit
+2. `OutputHandler.handleCompletion()` triggered
+3. **Primary path**: Reads `.cw/output/signal.json` from agent worktree
+4. Signal contains `{ status: "done"|"questions"|"error", result?, questions?, error? }`
+5. Agent DB status updated accordingly (idle, waiting_for_input, crashed)
+6. For `done`: proposals created from structured output; `agent:stopped` emitted
+7. For `questions`: parsed and stored as `pendingQuestions`; `agent:waiting` emitted
+8. **Fallback**: If signal.json missing, lifecycle controller retries with instruction injection
+
+### Account Failover
+
+1. On usage-limit error, `markAccountExhausted(id, until)` called
+2. `findNextAvailable(provider)` returns least-recently-used non-exhausted account
+3. Agent re-spawned with new account's credentials
+4. `agent:account_switched` event emitted
+
+### Resume Flow
+
+1. tRPC `resumeAgent` called with `answers: Record<string, string>`
+2. Manager looks up agent's session ID and provider config
+3. `buildResumeCommand()` creates resume command with session flag
+4. `formatAnswersAsPrompt(answers)` converts answers to prompt text
+5. New detached process spawned, same worktree, incremented session number
+
+## Provider Configuration
+
+Providers defined in `providers/presets.ts`:
+
+| Provider | Command | Resume | Prompt Mode |
+|----------|---------|--------|-------------|
+| claude | `claude` | `--resume <id>` | native (`-p`) |
+| claude-code | `claude` | `--resume <id>` | native |
+| codex | `codex` | none | flag (`--prompt`) |
+| aider | `aider` | none | flag (`--message`) |
+| cline | `cline` | none | flag |
+| continue | `continue` | none | flag |
+| cursor-agent | `cursor` | none | flag |
+
+Each provider config specifies: `command`, `args`, `resumeStyle`, `promptMode`, `structuredOutput`, `sessionId` extraction, `nonInteractive` options.
+
+## Output Parsing
+
+The `OutputHandler` processes JSONL streams from Claude CLI:
+
+- `text_delta` events → accumulated as text output, emitted via `agent:output`
+- `init` event → session ID extracted
+- `result` event → final result with structured data
+- Signal file (`signal.json`) → authoritative completion status
+
+For providers without structured output, the generic line parser accumulates raw text.
+
+## Log Chunks
+
+Agent output is persisted to `agent_log_chunks` table:
+- `onRawContent` callback fires for every output chunk
+- Fire-and-forget DB insert (no FK to agents — survives deletion)
+- Session tracking: spawn=1, resume=previousMax+1
+- Read path concatenates all sessions for full output history
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -0,0 +1,109 @@
+# Architecture Overview
+
+Codewalk District is a multi-agent workspace that orchestrates multiple AI coding agents (Claude, Codex, etc.) working in parallel on a shared codebase.
+
+## System Diagram
+
+```
+CLI (cw)
+  └── CoordinationServer
+        ├── HTTP Server (node:http, port 3847)
+        │     ├── GET /health
+        │     ├── GET /status
+        │     └── POST /trpc/* → tRPC Router (68+ procedures)
+        ├── EventBus (typed pub/sub, 30+ event types)
+        ├── MultiProviderAgentManager
+        │     ├── ProcessManager (detached child processes)
+        │     ├── WorktreeManager (git worktrees per agent)
+        │     ├── OutputHandler (JSONL stream parsing)
+        │     ├── AccountManager (round-robin, exhaustion failover)
+        │     └── LifecycleController (retry, signal recovery)
+        ├── DispatchManager (task queue, dependency resolution)
+        ├── PhaseDispatchManager (phase queue, DAG ordering)
+        └── CoordinationManager (merge queue, conflict resolution)
+
+Web UI (packages/web/)
+  └── React 19 + TanStack Router + tRPC React Query
+        ├── Initiative management (CRUD, projects)
+        ├── Page editor (Tiptap rich text)
+        ├── Pipeline visualization (phase DAG)
+        ├── Execution tab (task dispatch, agent monitoring)
+        └── Review tab (proposal accept/dismiss)
+```
+
+## Architectural Patterns
+
+### Hexagonal Architecture (Ports & Adapters)
+Every data-access layer follows this pattern:
+- **Port** (interface): `src/db/repositories/<entity>-repository.ts`
+- **Adapter** (implementation): `src/db/repositories/drizzle/<entity>-repository.ts`
+- Re-exported from barrel files so consumers import from `src/db/`
+
+### Event-Driven Communication
+All inter-module communication flows through a typed `EventBus`:
+- Managers emit domain events (agent:spawned, task:completed, etc.)
+- tRPC subscriptions bridge events to the frontend via SSE
+- Dispatch/coordination reacts to task/phase lifecycle events
+
+### Data-Driven Provider Configuration
+Agent providers (Claude, Codex, etc.) are defined as configuration objects, not code:
+- `AgentProviderConfig` specifies command, args, resume style, prompt mode
+- `buildSpawnCommand()` / `buildResumeCommand()` are generic and data-driven
+
+## Module Map
+
+| Module | Path | Purpose | Docs |
+|--------|------|---------|------|
+| Agent | `src/agent/` | Agent lifecycle, output parsing, accounts | [agent.md](agent.md) |
+| Database | `src/db/` | Schema, repositories, migrations | [database.md](database.md) |
+| Server & API | `src/server/`, `src/trpc/` | HTTP server, tRPC procedures | [server-api.md](server-api.md) |
+| Frontend | `packages/web/` | React UI, components, hooks | [frontend.md](frontend.md) |
+| CLI & Config | `src/cli/`, `src/config/` | CLI commands, workspace config | [cli-config.md](cli-config.md) |
+| Dispatch | `src/dispatch/` | Task/phase queue and dispatch | [dispatch-events.md](dispatch-events.md) |
+| Coordination | `src/coordination/` | Merge queue, conflict resolution | [server-api.md](server-api.md#coordination) |
+| Git | `src/git/` | Worktree management, project clones | [git-process-logging.md](git-process-logging.md) |
+| Process | `src/process/` | Child process spawn/track/stop | [git-process-logging.md](git-process-logging.md) |
+| Logging | `src/logger/`, `src/logging/` | Structured logging, file capture | [git-process-logging.md](git-process-logging.md) |
+| Events | `src/events/` | EventBus, typed event system | [dispatch-events.md](dispatch-events.md) |
+| Shared | `packages/shared/` | Types shared between frontend/backend | [frontend.md](frontend.md) |
+| Tests | `src/test/` | E2E, integration, fixtures | [testing.md](testing.md) |
+
+## Entity Relationships
+
+```
+INITIATIVES (root aggregate)
+    ├── N PHASES (with phase_dependencies DAG)
+    │     └── N TASKS
+    ├── N TASKS (initiative-level, with task_dependencies DAG)
+    │     └── N TASKS (parentTaskId self-ref for decomposition)
+    ├── N PAGES (parentPageId self-ref for hierarchy)
+    ├── N INITIATIVE_PROJECTS (junction → PROJECTS M:M)
+    └── N PROPOSALS
+
+AGENTS (independent aggregate)
+    ├── → TASK (optional)
+    ├── → INITIATIVE (optional)
+    ├── → ACCOUNT (optional)
+    ├── N PROPOSALS
+    └── N MESSAGES (sender/recipient)
+
+ACCOUNTS → N AGENTS
+AGENT_LOG_CHUNKS (no FK, survives agent deletion)
+```
+
+## Tech Stack
+
+| Layer | Technology |
+|-------|-----------|
+| Runtime | Node.js (ESM) |
+| Language | TypeScript (strict) |
+| Database | SQLite via better-sqlite3 + Drizzle ORM |
+| HTTP | Native node:http |
+| API | tRPC v11 |
+| Frontend | React 19, TanStack Router, Tailwind CSS, shadcn/ui |
+| Editor | Tiptap (ProseMirror) |
+| Git | simple-git |
+| Process | execa (detached) |
+| Logging | pino (structured) |
+| Testing | vitest |
+| Build | tsup (server), Vite (frontend) |
--- a/docs/archive/agent-lifecycle-refactor.md
+++ b/docs/archive/agent-lifecycle-refactor.md
--- a/docs/archive/agents/architect.md
+++ b/docs/archive/agents/architect.md
--- a/docs/archive/agents/verifier.md
+++ b/docs/archive/agents/verifier.md
--- a/docs/archive/agents/worker.md
+++ b/docs/archive/agents/worker.md
--- a/docs/archive/context-engineering.md
+++ b/docs/archive/context-engineering.md
--- a/docs/archive/crash-marking-fix.md
+++ b/docs/archive/crash-marking-fix.md
--- a/docs/archive/deviation-rules.md
+++ b/docs/archive/deviation-rules.md
--- a/docs/archive/execution-artifacts.md
+++ b/docs/archive/execution-artifacts.md
--- a/docs/archive/initiatives.md
+++ b/docs/archive/initiatives.md
--- a/docs/archive/model-profiles.md
+++ b/docs/archive/model-profiles.md
--- a/docs/archive/session-state.md
+++ b/docs/archive/session-state.md
--- a/docs/archive/task-granularity.md
+++ b/docs/archive/task-granularity.md
--- a/docs/archive/tasks.md
+++ b/docs/archive/tasks.md
--- a/docs/archive/verification.md
+++ b/docs/archive/verification.md
--- a/docs/archive/wireframes/agent-inbox.md
+++ b/docs/archive/wireframes/agent-inbox.md
--- a/docs/archive/wireframes/initiative-dashboard.md
+++ b/docs/archive/wireframes/initiative-dashboard.md
--- a/docs/archive/wireframes/initiative-detail.md
+++ b/docs/archive/wireframes/initiative-detail.md
--- a/docs/cli-config.md
+++ b/docs/cli-config.md
@@ -0,0 +1,141 @@
+# CLI & Configuration
+
+`src/cli/` — CLI commands, `src/config/` — workspace configuration, `src/bin/` — entry point.
+
+## Entry Point
+
+`src/bin/cw.ts` — hashbang entry that imports and runs the CLI.
+
+## CLI Framework
+
+Uses **Commander.js** for command parsing.
+
+## Global Flags
+
+- `-s, --server` — Start coordination server in foreground
+- `-p, --port <number>` — Server port (default: 3847, env: `CW_PORT`)
+- `-d, --debug` — Enable debug mode (archive agent workdirs before cleanup)
+
+## Commands
+
+### System
+| Command | Description |
+|---------|-------------|
+| `cw init` | Create `.cwrc` workspace file in current directory |
+| `cw start` | Start coordination server (see Server Wiring below) |
+| `cw stop` | Stop running server (reads PID file, sends signal) |
+| `cw status` | Query server health endpoint |
+| `cw id [-n count]` | Generate nanoid(s) offline |
+
+### Agent Management (`cw agent`)
+| Command | Description |
+|---------|-------------|
+| `spawn <prompt> --task <id> [--name] [--provider] [--initiative] [--cwd]` | Spawn agent |
+| `stop <name>` | Stop running agent |
+| `delete <name>` | Delete agent, clean workdir/branches/logs |
+| `list` | List all agents with status |
+| `get <name>` | Agent details (ID, task, session, worktree, status) |
+| `resume <name> <answers>` | Resume with JSON answers or single string |
+| `result <name>` | Get execution result |
+
+### Task Management (`cw task`)
+| Command | Description |
+|---------|-------------|
+| `list --parent\|--phase\|--initiative <id>` | List tasks with counts |
+| `get <taskId>` | Task details |
+| `status <taskId> <status>` | Update status |
+
+### Dispatch (`cw dispatch`)
+| Command | Description |
+|---------|-------------|
+| `queue <taskId>` | Queue task for dispatch |
+| `next` | Dispatch next available task |
+| `status` | Show queue status |
+| `complete <taskId>` | Mark task complete |
+
+### Initiative Management (`cw initiative`)
+| Command | Description |
+|---------|-------------|
+| `create <name> [--project <ids...>]` | Create initiative |
+| `list [-s status]` | List initiatives |
+| `get <id>` | Initiative details |
+| `phases <initiativeId>` | List phases |
+
+### Architect (`cw architect`)
+| Command | Description |
+|---------|-------------|
+| `discuss <initiativeId> [-c context]` | Start discussion agent |
+| `breakdown <initiativeId> [-s summary]` | Start breakdown agent |
+| `decompose <phaseId> [-t taskName] [-c context]` | Decompose phase into tasks |
+
+### Phase (`cw phase`)
+| Command | Description |
+|---------|-------------|
+| `add-dependency --phase <id> --depends-on <id>` | Add dependency edge |
+| `dependencies <phaseId>` | List dependencies |
+| `queue <phaseId>` | Queue approved phase |
+| `dispatch` | Dispatch next phase |
+| `queue-status` | Show phase queue |
+
+### Merge & Coordination (`cw merge`, `cw coordinate`)
+| Command | Description |
+|---------|-------------|
+| `merge queue <taskId>` | Queue task for merge |
+| `merge status` | Show merge queue |
+| `merge next` | Show next mergeable task |
+| `coordinate [-t branch]` | Process all ready merges (default: main) |
+
+### Messages (`cw message`)
+| Command | Description |
+|---------|-------------|
+| `list [--agent <id>] [--status <s>]` | List messages |
+| `read <messageId>` | Read full message |
+| `respond <messageId> <response>` | Respond to message |
+
+### Projects (`cw project`)
+| Command | Description |
+|---------|-------------|
+| `register --name <n> --url <u>` | Register git repo |
+| `list` | List projects |
+| `delete <id>` | Delete project |
+
+### Accounts (`cw account`)
+| Command | Description |
+|---------|-------------|
+| `add [--provider] [--email]` | Auto-discover or manually register account |
+| `list` | Show accounts with exhaustion status |
+| `remove <id>` | Remove account |
+| `refresh` | Clear expired exhaustion markers |
+
+## Server Wiring
+
+The CLI is the composition root. It creates concrete implementations and passes them as `contextDeps`:
+
+```
+ServerContextDeps = Omit<TrpcAdapterOptions, 'eventBus' | 'serverStartedAt' | 'processCount'>
+```
+
+This includes all repositories, managers, and the credential manager. The server adds `eventBus`, `serverStartedAt`, and `processCount` at startup.
+
+## Workspace Configuration
+
+`src/config/` module:
+
+### .cwrc File
+JSON file at workspace root that marks a `cw` workspace:
+```json
+{ "version": 1 }
+```
+
+### findWorkspaceRoot()
+Walks up directory tree looking for `.cwrc` file. Returns the directory containing it, or throws if not found.
+
+### Schema
+Currently `{ version: 1 }` — extend with new top-level keys as needed.
+
+### Files
+| File | Purpose |
+|------|---------|
+| `types.ts` | CwrcConfig type definition |
+| `cwrc.ts` | findWorkspaceRoot(), readCwrc(), writeCwrc() |
+| `index.ts` | Public API exports |
--- a/docs/database.md
+++ b/docs/database.md
@@ -0,0 +1,172 @@
+# Database Module
+
+`src/db/` — SQLite database via better-sqlite3 + Drizzle ORM with hexagonal architecture.
+
+## Architecture
+
+- **Schema**: `src/db/schema.ts` — all tables, columns, relations
+- **Ports** (interfaces): `src/db/repositories/*.ts` — 10 repository interfaces
+- **Adapters** (implementations): `src/db/repositories/drizzle/*.ts` — 10 Drizzle adapters
+- **Barrel exports**: `src/db/index.ts` re-exports everything
+
+All adapters use nanoid() for IDs, auto-manage timestamps, and use Drizzle's `.returning()` for atomic reads after writes.
+
+## Tables
+
+### initiatives
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | nanoid |
+| name | text NOT NULL | |
+| status | text enum | 'active' \| 'completed' \| 'archived', default 'active' |
+| mergeRequiresApproval | integer/boolean | default true |
+| mergeTarget | text nullable | target branch for merges |
+| createdAt, updatedAt | integer/timestamp | |
+
+### phases
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| initiativeId | text FK → initiatives (cascade) | |
+| name | text NOT NULL | |
+| content | text nullable | Tiptap JSON |
+| status | text enum | 'pending' \| 'approved' \| 'in_progress' \| 'completed' \| 'blocked' |
+| createdAt, updatedAt | integer/timestamp | |
+
+### phase_dependencies
+`phaseId` FK → phases, `dependsOnPhaseId` FK → phases. Both cascade delete.
+
+### tasks
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| phaseId | text nullable FK → phases (cascade) | |
+| initiativeId | text nullable FK → initiatives (cascade) | |
+| parentTaskId | text nullable self-ref FK (cascade) | decomposition hierarchy |
+| name | text NOT NULL | |
+| description | text nullable | |
+| type | text enum | 'auto' \| 'checkpoint:human-verify' \| 'checkpoint:decision' \| 'checkpoint:human-action' |
+| category | text enum | 'execute' \| 'research' \| 'discuss' \| 'breakdown' \| 'decompose' \| 'refine' \| 'verify' \| 'merge' \| 'review' |
+| priority | text enum | 'low' \| 'medium' \| 'high' |
+| status | text enum | 'pending_approval' \| 'pending' \| 'in_progress' \| 'completed' \| 'blocked' |
+| requiresApproval | integer/boolean nullable | null = inherit from initiative |
+| order | integer | default 0 |
+| createdAt, updatedAt | integer/timestamp | |
+
+### task_dependencies
+`taskId` FK → tasks, `dependsOnTaskId` FK → tasks. Both cascade delete.
+
+### agents
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| name | text NOT NULL UNIQUE | human-readable alias (adjective-animal) |
+| taskId | text nullable FK → tasks (set null) | |
+| initiativeId | text nullable FK → initiatives (set null) | |
+| sessionId | text nullable | CLI session ID for resume |
+| worktreeId | text NOT NULL | path to agent's git worktree |
+| provider | text NOT NULL | default 'claude' |
+| accountId | text nullable FK → accounts (set null) | |
+| status | text enum | 'idle' \| 'running' \| 'waiting_for_input' \| 'stopped' \| 'crashed' |
+| mode | text enum | 'execute' \| 'discuss' \| 'breakdown' \| 'decompose' \| 'refine' |
+| pid | integer nullable | OS process ID |
+| exitCode | integer nullable | |
+| outputFilePath | text nullable | |
+| result | text nullable | JSON |
+| pendingQuestions | text nullable | JSON |
+| userDismissedAt | integer/timestamp nullable | |
+| createdAt, updatedAt | integer/timestamp | |
+
+### accounts
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| email | text NOT NULL | |
+| provider | text NOT NULL | default 'claude' |
+| configJson | text nullable | serialized .claude.json |
+| credentials | text nullable | serialized .credentials.json |
+| isExhausted | integer/boolean | default false |
+| exhaustedUntil | integer/timestamp nullable | |
+| lastUsedAt | integer/timestamp nullable | round-robin scheduling |
+| sortOrder | integer | |
+| createdAt, updatedAt | integer/timestamp | |
+
+### proposals
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| agentId | text FK → agents (cascade) | |
+| initiativeId | text FK → initiatives (cascade) | |
+| targetType | text enum | 'page' \| 'phase' \| 'task' |
+| targetId | text nullable | existing entity ID, null for creates |
+| title, summary, content | text | markdown body |
+| metadata | text nullable | JSON |
+| status | text enum | 'pending' \| 'accepted' \| 'dismissed' |
+| sortOrder | integer | |
+| createdAt, updatedAt | integer/timestamp | |
+
+### pages
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| initiativeId | text FK → initiatives (cascade) | |
+| parentPageId | text nullable self-ref FK (cascade) | root page has NULL |
+| title | text NOT NULL | |
+| content | text nullable | Tiptap JSON |
+| sortOrder | integer | |
+| createdAt, updatedAt | integer/timestamp | |
+
+### projects
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| name | text NOT NULL UNIQUE | |
+| url | text NOT NULL UNIQUE | git repo URL |
+| createdAt, updatedAt | integer/timestamp | |
+
+### initiative_projects (junction)
+`initiativeId` + `projectId` with unique index. Both FK cascade.
+
+### messages
+Self-referencing (parentMessageId) for threading. Sender/recipient types: 'agent' | 'user'.
+
+### agent_log_chunks
+| Column | Type | Notes |
+|--------|------|-------|
+| id | text PK | |
+| agentId | text NOT NULL | **NO FK** — survives agent deletion |
+| agentName | text NOT NULL | snapshot for display |
+| sessionNumber | integer | spawn=1, resume=prev+1 |
+| content | text NOT NULL | raw JSONL chunk |
+| createdAt | integer/timestamp | |
+
+Index on `agentId` for fast queries.
+
+## Repository Interfaces
+
+10 repositories, each with standard CRUD plus domain-specific methods:
+
+| Repository | Key Methods |
+|-----------|-------------|
+| InitiativeRepository | create, findById, findAll, findByStatus, update, delete |
+| PhaseRepository | + createDependency, getDependencies, getDependents, findByInitiativeId |
+| TaskRepository | + findByParentTaskId, findByPhaseId, findPendingApproval, createDependency |
+| AgentRepository | + findByName, findByTaskId, findBySessionId, findByStatus |
+| MessageRepository | + findPendingForUser, findRequiringResponse, findReplies |
+| PageRepository | + findRootPage, getOrCreateRootPage, findByParentPageId |
+| ProjectRepository | + junction ops: setInitiativeProjects (diff-based), findProjectsByInitiativeId |
+| AccountRepository | + findNextAvailable (round-robin), markExhausted, clearExpiredExhaustion |
+| ProposalRepository | + findByAgentIdAndStatus, updateManyByAgentId, countByAgentIdAndStatus |
+| LogChunkRepository | insertChunk, findByAgentId, deleteByAgentId, getSessionCount |
+
+## Migrations
+
+Located in `drizzle/`. Applied via `ensureSchema()` on startup using Drizzle's `migrate()`.
+
+Key rules:
+- **Never use raw SQL** for schema initialization
+- Run `npx drizzle-kit generate` to create migrations
+- See [database-migrations.md](database-migrations.md) for full workflow
+- Snapshots stale after 0008; migrations 0008+ are hand-written
+
+Current migrations: 0000 through 0018 (19 total).
--- a/docs/dispatch-events.md
+++ b/docs/dispatch-events.md
@@ -0,0 +1,92 @@
+# Dispatch & Events
+
+`src/dispatch/` — Task and phase dispatch queues. `src/events/` — Typed event bus.
+
+## Event Bus
+
+`src/events/` — Typed pub/sub system for inter-module communication.
+
+### Architecture
+- **Port**: `EventBus` interface with `emit(event)` and `on(type, handler)`
+- **Adapter**: `TypedEventBus` using Node.js `EventEmitter`
+- All events implement `BaseEvent { type, timestamp, payload }`
+
+### Event Types (48)
+
+| Category | Events | Count |
+|----------|--------|-------|
+| **Agent** | `agent:spawned`, `agent:stopped`, `agent:crashed`, `agent:resumed`, `agent:account_switched`, `agent:deleted`, `agent:waiting`, `agent:output` | 8 |
+| **Task** | `task:queued`, `task:dispatched`, `task:completed`, `task:blocked`, `task:pending_approval` | 5 |
+| **Phase** | `phase:queued`, `phase:started`, `phase:completed`, `phase:blocked` | 4 |
+| **Merge** | `merge:queued`, `merge:started`, `merge:completed`, `merge:conflicted` | 4 |
+| **Page** | `page:created`, `page:updated`, `page:deleted` | 3 |
+| **Process** | `process:spawned`, `process:stopped`, `process:crashed` | 3 |
+| **Server** | `server:started`, `server:stopped` | 2 |
+| **Worktree** | `worktree:created`, `worktree:removed`, `worktree:merged`, `worktree:conflict` | 4 |
+| **Account** | `account:credentials_refreshed`, `account:credentials_expired`, `account:credentials_validated` | 3 |
+| **Log** | `log:entry` | 1 |
+
+### Key Event Payloads
+
+```typescript
+AgentSpawnedEvent    { agentId, name, taskId, worktreeId, provider }
+AgentStoppedEvent    { agentId, name, taskId, reason }
+  // reason: 'user_requested'|'task_complete'|'error'|'waiting_for_input'|
+  //         'context_complete'|'breakdown_complete'|'decompose_complete'|'refine_complete'
+AgentWaitingEvent    { agentId, name, taskId, sessionId, questions[] }
+AgentOutputEvent     { agentId, stream, data }
+TaskCompletedEvent   { taskId, agentId, success, message }
+TaskQueuedEvent      { taskId, priority, dependsOn[] }
+PhaseStartedEvent    { phaseId, initiativeId }
+MergeConflictedEvent { taskId, agentId, worktreeId, targetBranch, conflictingFiles[] }
+AccountCredentialsRefreshedEvent { accountId, expiresAt, previousExpiresAt? }
+```
+
+## Task Dispatch
+
+`src/dispatch/` — In-memory queue with dependency-ordered dispatch.
+
+### Architecture
+- **Port**: `DispatchManager` interface
+- **Adapter**: `DefaultDispatchManager`
+
+### How Task Dispatch Works
+
+1. **Queue** — `queue(taskId)` fetches task dependencies, adds to internal Map
+2. **Dispatch** — `dispatchNext()` finds highest-priority task with all deps complete
+3. **Priority order**: high > medium > low, then oldest first (FIFO within priority)
+4. **Checkpoint skip** — Tasks with type starting with `checkpoint:` skip auto-dispatch
+5. **Approval check** — `completeTask()` checks `requiresApproval` (task-level, then initiative-level)
+6. **Approval flow** — If approval required: status → `pending_approval`, emit `task:pending_approval`
+
+### DispatchManager Methods
+
+| Method | Purpose |
+|--------|---------|
+| `queue(taskId)` | Add task to dispatch queue |
+| `dispatchNext()` | Find and dispatch next ready task |
+| `getNextDispatchable()` | Get next task without dispatching |
+| `completeTask(taskId, agentId?)` | Complete with approval check |
+| `approveTask(taskId)` | Approve pending task |
+| `blockTask(taskId, reason)` | Block task with reason |
+| `getQueueState()` | Return queued, ready, blocked tasks |
+
+## Phase Dispatch
+
+`DefaultPhaseDispatchManager` — Same pattern for phases:
+
+1. **Queue** — `queuePhase(phaseId)` validates phase is approved, gets dependencies
+2. **Dispatch** — `dispatchNextPhase()` finds phase with all deps complete
+3. **Auto-queue tasks** — When phase starts, all pending tasks are queued
+4. **Events** — `phase:queued`, `phase:started`, `phase:completed`, `phase:blocked`
+
+### PhaseDispatchManager Methods
+
+| Method | Purpose |
+|--------|---------|
+| `queuePhase(phaseId)` | Queue approved phase |
+| `dispatchNextPhase()` | Start next ready phase, auto-queue its tasks |
+| `getNextDispatchablePhase()` | Get next phase without dispatching |
+| `completePhase(phaseId)` | Mark phase complete |
+| `blockPhase(phaseId, reason)` | Block phase |
+| `getPhaseQueueState()` | Return queued, ready, blocked phases |
--- a/docs/frontend.md
+++ b/docs/frontend.md
@@ -0,0 +1,134 @@
+# Frontend
+
+`packages/web/` — React web UI for managing initiatives, agents, and content.
+
+## Tech Stack
+
+| Technology | Purpose |
+|-----------|---------|
+| React 19 | UI framework |
+| TanStack Router | File-based routing |
+| tRPC React Query | Type-safe API client with caching |
+| Tailwind CSS | Utility-first styling |
+| shadcn/ui | Component library (button, card, dialog, dropdown, input, label, textarea, badge, sonner) |
+| Tiptap | Rich text editor (ProseMirror-based) |
+| Lucide | Icon library |
+
+## Path Alias
+
+`@/*` maps to `./src/*` (configured in `tsconfig.app.json`).
+
+## Routes
+
+| Route | Component | Purpose |
+|-------|-----------|---------|
+| `/` | `routes/index.tsx` | Dashboard / initiative list |
+| `/initiatives/$id` | `routes/initiatives/$initiativeId.tsx` | Initiative detail (tabbed) |
+| `/settings` | `routes/settings/index.tsx` | Settings page |
+
+## Initiative Detail Tabs
+
+The initiative detail page has three tabs managed via local state (not URL params):
+
+1. **Content Tab** — Page tree + Tiptap editor, proposal review
+2. **Execution Tab** — Pipeline visualization, phase management, task dispatch
+3. **Review Tab** — Pending proposals from agents
+
+## Component Inventory (73 components)
+
+### Core Components (`src/components/`)
+| Component | Purpose |
+|-----------|---------|
+| `InitiativeHeader` | Initiative name, project badges, merge config |
+| `InitiativeContent` | Content tab with page tree + editor |
+| `StatusBadge` | Colored status indicator |
+| `TaskRow` | Task list item with status, priority, category |
+| `QuestionForm` | Agent question form with options |
+| `InboxDetailPanel` | Agent message detail + response form |
+| `ProjectPicker` | Checkbox list for project selection |
+| `RegisterProjectDialog` | Dialog to register new git project |
+| `Skeleton` | Loading placeholder |
+
+### Editor Components (`src/components/editor/`)
+| Component | Purpose |
+|-----------|---------|
+| `TiptapEditor` | Core rich text editor wrapper |
+| `PageEditor` | Page content editor with auto-save |
+| `PhaseContentEditor` | Phase content editor |
+| `ContentProposalReview` | Accept/dismiss proposals from agents |
+| `SlashCommandMenu` | Slash command popup in editor |
+
+### Execution Components (`src/components/execution/`)
+| Component | Purpose |
+|-----------|---------|
+| `ExecutionTab` | Main execution view container |
+| `ExecutionContext` | React context for execution state |
+| `PhaseDetailPanel` | Phase detail with tasks, dependencies, breakdown |
+| `PhaseSidebar` | Phase list sidebar |
+| `TaskDetailPanel` | Task detail with agent status, output |
+
+### Pipeline Components (`src/components/pipeline/`)
+| Component | Purpose |
+|-----------|---------|
+| `PipelineVisualization` | DAG visualization of phase pipeline |
+| `PipelineNode` | Individual phase node in pipeline |
+| `PipelineEdge` | Dependency edge between nodes |
+
+### Review Components (`src/components/review/`)
+| Component | Purpose |
+|-----------|---------|
+| `ReviewTab` | Review tab container |
+| `ProposalCard` | Individual proposal display |
+
+### UI Primitives (`src/components/ui/`)
+shadcn/ui components: badge, button, card, dialog, dropdown-menu, input, label, sonner, textarea.
+
+## Custom Hooks (`src/hooks/`)
+
+| Hook | Purpose |
+|------|---------|
+| `useRefineAgent` | Manages refine agent lifecycle for initiative |
+| `useDecomposeAgent` | Manages decompose agent for phase breakdown |
+| `useAgentOutput` | Subscribes to live agent output stream |
+
+## tRPC Client
+
+Configured in `src/lib/trpc.ts`. Uses `@trpc/react-query` with TanStack Query for caching and optimistic updates.
+
+## Key User Flows
+
+### Creating an Initiative
+1. Dashboard → "New Initiative" → enter name, select projects
+2. `createInitiative` mutation → auto-creates root page
+3. Navigate to initiative detail
+
+### Managing Content (Pages)
+1. Content tab → page tree sidebar
+2. Click page → Tiptap editor loads content
+3. Edit → auto-saves via `updatePage` mutation
+4. Use slash commands for formatting
+
+### Refining Content with AI
+1. Content tab → "Refine" button
+2. `spawnArchitectRefine` mutation → agent analyzes pages
+3. Agent creates proposals (page edits, new phases, tasks)
+4. Proposals appear in review section → accept/dismiss each
+
+### Pipeline Visualization
+1. Execution tab → pipeline DAG shows phases as nodes
+2. Drag to add dependencies between phases
+3. Approve phases → queue for dispatch
+4. Tasks auto-queued when phase starts
+
+### Decomposing Phases
+1. Select phase → "Breakdown" button
+2. `spawnArchitectDecompose` mutation → agent creates task proposals
+3. Accept proposals → tasks created under phase
+4. View tasks in phase detail panel
+
+## Shared Package
+
+`packages/shared/` exports:
+- `sortByPriorityAndQueueTime()` — priority-based task sorting
+- `topologicalSort()` / `groupByPipelineColumn()` — phase DAG layout
+- Shared type re-exports from `packages/shared/src/types.ts`
--- a/docs/git-process-logging.md
+++ b/docs/git-process-logging.md
@@ -0,0 +1,121 @@
+# Git, Process, and Logging Modules
+
+Three infrastructure modules supporting agent execution.
+
+## Git Module (`src/git/`)
+
+Manages git worktrees for isolated agent workspaces.
+
+### Architecture
+- **Port**: `WorktreeManager` interface
+- **Adapter**: `SimpleGitWorktreeManager` using simple-git library
+
+### WorktreeManager Methods
+
+| Method | Purpose |
+|--------|---------|
+| `create(id, branch, baseBranch?)` | Create worktree with new branch (default base: 'main') |
+| `remove(id)` | Clean up worktree directory |
+| `list()` | All worktrees including main |
+| `get(id)` | Specific worktree by ID |
+| `diff(id)` | Changed files vs HEAD |
+| `merge(id, targetBranch)` | Merge worktree branch into target |
+
+### Worktree Storage
+Worktrees stored in `.cw-worktrees/` subdirectory of the repo. Each agent gets a worktree at `.cw-worktrees/agent/<alias>/`.
+
+### Merge Flow
+1. Check out target branch
+2. `git merge <source> --no-edit`
+3. On success: emit `worktree:merged`
+4. On conflict: `git merge --abort`, emit `worktree:conflict` with conflicting file list
+5. Restore original branch
+
+### Project Clones
+- `cloneProject(url, destPath)` — Simple git clone wrapper
+- `ensureProjectClone(project, workspaceRoot)` — Idempotent: checks if clone exists, clones if not
+- `getProjectCloneDir(name, id)` — Canonical path: `repos/<sanitized-name>-<id>/`
+
+### Events Emitted
+`worktree:created`, `worktree:removed`, `worktree:merged`, `worktree:conflict`
+
+---
+
+## Process Module (`src/process/`)
+
+Spawns, tracks, and controls child processes.
+
+### Classes
+
+**ProcessRegistry** — In-memory metadata store:
+- `register(info)`, `unregister(id)`, `get(id)`, `getAll()`, `getByPid(pid)`, `updateStatus(id, status)`
+
+**ProcessManager** — Lifecycle management:
+
+| Method | Purpose |
+|--------|---------|
+| `spawn(options)` | Spawn detached process (survives parent exit) |
+| `stop(id)` | SIGTERM → wait 5s → SIGKILL |
+| `stopAll()` | Stop all running processes in parallel |
+| `restart(id)` | Stop + re-spawn with same options |
+| `isRunning(id)` | Check with `process.kill(pid, 0)` |
+
+### Spawn Details
+- Uses `execa` with `detached: true`, `stdio: 'ignore'`
+- Calls `subprocess.unref()` so parent can exit
+- Exit handler updates registry and emits events
+
+### Events Emitted
+`process:spawned`, `process:stopped`, `process:crashed`
+
+---
+
+## Logger Module (`src/logger/`)
+
+Structured logging via **pino**.
+
+### Usage
+```typescript
+import { createModuleLogger } from './logger/index.js';
+const log = createModuleLogger('my-module');
+log.info({ key: 'value' }, 'message');
+```
+
+### Configuration
+| Env Var | Effect |
+|---------|--------|
+| `CW_LOG_LEVEL` | Override log level |
+| `CW_LOG_PRETTY` | Set to `'1'` for human-readable output |
+| `NODE_ENV=development` | Default to 'debug' level |
+
+### Output
+- Default: JSON to stderr (fd 2)
+- Pretty mode: pino-pretty to stdout with colors and timestamps
+
+---
+
+## Logging Module (`src/logging/`)
+
+File-based per-process output capture (separate from pino).
+
+### Classes
+
+**LogManager** — Directory management:
+- Base dir: `~/.cw/logs/`
+- Structure: `{processId}/stdout.log`, `{processId}/stderr.log`
+- `cleanOldLogs(retainDays)` — removes old directories by mtime
+
+**ProcessLogWriter** — File I/O with timestamps:
+- `open()` — create directories and append-mode WriteStreams
+- `writeStdout(data)` / `writeStderr(data)` — prefix each line with `[YYYY-MM-DD HH:mm:ss.SSS]`
+- Handles backpressure (waits for drain event)
+- Emits `log:entry` event via EventBus
+
+### Factory
+```typescript
+import { createLogger } from './logging/index.js';
+const writer = createLogger(processId, eventBus);
+await writer.open();
+await writer.writeStdout('output data');
+await writer.close();
+```
--- a/docs/server-api.md
+++ b/docs/server-api.md
@@ -0,0 +1,200 @@
+# Server & API Module
+
+`src/server/` — HTTP server, `src/trpc/` — tRPC procedures, `src/coordination/` — merge queue.
+
+## HTTP Server
+
+**Framework**: Native `node:http` (no Express/Fastify)
+**Default**: `127.0.0.1:3847`
+**PID file**: `~/.cw/server.pid`
+
+### Routes
+
+| Route | Method | Purpose |
+|-------|--------|---------|
+| `/health` | GET | Health check (`{ status, uptime, processCount }`) |
+| `/status` | GET | Full server status with process list |
+| `/trpc/*` | POST | All tRPC procedure calls |
+
+### Lifecycle
+- `CoordinationServer.start()` — checks PID file, creates HTTP server, emits `server:started`
+- `CoordinationServer.stop()` — emits `server:stopped`, closes server, removes PID file
+- `GracefulShutdown` handles SIGTERM/SIGINT/SIGHUP with 10s timeout
+
+### tRPC Adapter
+`trpc-adapter.ts` converts `node:http` IncomingMessage/ServerResponse to fetch Request/Response for tRPC. Subscriptions stream via ReadableStream bodies (SSE).
+
+## tRPC Context
+
+All procedures share a context with optional dependencies:
+
+```typescript
+interface TRPCContext {
+  eventBus: EventBus              // always present
+  serverStartedAt: Date | null
+  processCount: number
+  agentManager?: AgentManager     // optional
+  taskRepository?: TaskRepository
+  // ... all 10 repositories, 3 managers, credentialManager, workspaceRoot
+}
+```
+
+Each procedure uses `require*Repository(ctx)` helpers that throw `TRPCError(INTERNAL_SERVER_ERROR)` if a dependency is missing.
+
+## Procedure Reference
+
+### System
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| health | query | Health check with uptime |
+| status | query | Server status with process list |
+| systemHealthCheck | query | Account, agent, project health |
+
+### Agents
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| spawnAgent | mutation | Spawn new agent (taskId, prompt, provider, mode) |
+| stopAgent | mutation | Stop agent by name or ID |
+| deleteAgent | mutation | Delete agent and clean up worktree |
+| dismissAgent | mutation | Dismiss agent (set userDismissedAt) |
+| resumeAgent | mutation | Resume with answers |
+| listAgents | query | All agents |
+| getAgent | query | Single agent by name or ID |
+| getAgentResult | query | Execution result |
+| getAgentQuestions | query | Pending questions |
+| getAgentOutput | query | Full output (DB chunks or file fallback) |
+| getActiveRefineAgent | query | Active refine agent for initiative |
+| listWaitingAgents | query | Agents waiting for input |
+| onAgentOutput | subscription | Live output stream + buffered history |
+
+### Tasks
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| listTasks | query | Child tasks of parent |
+| getTask | query | Single task |
+| updateTaskStatus | mutation | Change task status |
+| createInitiativeTask | mutation | Create task on initiative |
+| createPhaseTask | mutation | Create task on phase |
+| listInitiativeTasks | query | All tasks for initiative |
+| listPhaseTasks | query | All tasks for phase |
+| listPendingApprovals | query | Tasks with status=pending_approval |
+| approveTask | mutation | Approve and complete task |
+
+### Initiatives
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| createInitiative | mutation | Create with optional projectIds, auto-creates root page |
+| listInitiatives | query | Filter by status |
+| getInitiative | query | With projects array |
+| updateInitiative | mutation | Name, status |
+| updateInitiativeMergeConfig | mutation | mergeRequiresApproval, mergeTarget |
+
+### Phases
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| createPhase | mutation | Create in initiative |
+| listPhases | query | By initiative |
+| getPhase | query | Single phase |
+| updatePhase | mutation | Name, content, status |
+| approvePhase | mutation | Validate and approve |
+| deletePhase | mutation | Cascade delete |
+| createPhasesFromBreakdown | mutation | Bulk create from agent output |
+| createPhaseDependency | mutation | Add dependency edge |
+| removePhaseDependency | mutation | Remove dependency edge |
+| listInitiativePhaseDependencies | query | All dependency edges |
+| getPhaseDependencies | query | What this phase depends on |
+| getPhaseDependents | query | What depends on this phase |
+
+### Phase Dispatch
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| queuePhase | mutation | Queue approved phase |
+| dispatchNextPhase | mutation | Start next ready phase |
+| getPhaseQueueState | query | Queue state |
+| createChildTasks | mutation | Create tasks from decompose parent |
+
+### Architect (High-Level Agent Spawning)
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| spawnArchitectDiscuss | mutation | Discussion agent |
+| spawnArchitectBreakdown | mutation | Breakdown agent (generates phases) |
+| spawnArchitectRefine | mutation | Refine agent (generates proposals) |
+| spawnArchitectDecompose | mutation | Decompose agent (generates tasks) |
+
+### Dispatch
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| queueTask | mutation | Add task to dispatch queue |
+| dispatchNext | mutation | Dispatch next ready task |
+| getQueueState | query | Queue state |
+| completeTask | mutation | Complete with approval check |
+
+### Coordination (Merge Queue)
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| queueMerge | mutation | Queue task for merge |
+| processMerges | mutation | Process merge queue |
+| getMergeQueueStatus | query | Queue state |
+| getNextMergeable | query | Next ready-to-merge task |
+
+### Projects
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| registerProject | mutation | Clone git repo, create record |
+| listProjects | query | All projects |
+| getProject | query | Single project |
+| deleteProject | mutation | Delete clone and record |
+| getInitiativeProjects | query | Projects for initiative |
+| updateInitiativeProjects | mutation | Sync junction table |
+
+### Pages
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| getRootPage | query | Auto-creates if missing |
+| getPage | query | Single page |
+| getPageUpdatedAtMap | query | Bulk updatedAt check |
+| listPages | query | By initiative |
+| listChildPages | query | By parent page |
+| createPage | mutation | Create, emit page:created |
+| updatePage | mutation | Title/content/sortOrder, emit page:updated |
+| deletePage | mutation | Delete, emit page:deleted |
+
+### Accounts
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| listAccounts | query | All accounts |
+| addAccount | mutation | Create account |
+| removeAccount | mutation | Delete account |
+| refreshAccounts | mutation | Clear expired exhaustion |
+| updateAccountAuth | mutation | Update credentials |
+| markAccountExhausted | mutation | Set exhaustion timer |
+| listProviderNames | query | Available provider names |
+
+### Proposals
+| Procedure | Type | Description |
+|-----------|------|-------------|
+| listProposals | query | By agent or initiative |
+| acceptProposal | mutation | Apply side effects, auto-dismiss agent |
+| dismissProposal | mutation | Dismiss, auto-dismiss agent |
+| acceptAllProposals | mutation | Bulk accept with error collection |
+| dismissAllProposals | mutation | Bulk dismiss |
+
+### Subscriptions (SSE)
+| Procedure | Type | Events |
+|-----------|------|--------|
+| onEvent | subscription | All 30+ event types |
+| onAgentUpdate | subscription | agent:* events (8 types) |
+| onTaskUpdate | subscription | task:* + phase:* events (8 types) |
+| onPageUpdate | subscription | page:created/updated/deleted |
+
+Subscriptions use `eventBusIterable()` — queue-based async generator, max 1000 events, 30s heartbeat.
+
+## Coordination Module
+
+`src/coordination/` manages merge queue:
+
+- **CoordinationManager** port: `queueMerge`, `getNextMergeable`, `processMerges`, `handleConflict`, `getQueueState`
+- **DefaultCoordinationManager** adapter: in-memory queue, dependency-ordered processing
+- **ConflictResolutionService**: creates resolution tasks for merge conflicts
+- Merge flow: queue → check deps → merge via WorktreeManager → handle conflicts
+- Events: `merge:queued`, `merge:started`, `merge:completed`, `merge:conflicted`
--- a/docs/testing.md
+++ b/docs/testing.md
@@ -0,0 +1,79 @@
+# Testing
+
+`src/test/` — Test infrastructure, fixtures, and test suites.
+
+## Framework
+
+**vitest** (Vite-native test runner)
+
+## Test Categories
+
+### Unit Tests
+Located alongside source files (`*.test.ts`):
+- `src/agent/*.test.ts` — Manager, output handler, completion detection, file I/O, process manager
+- `src/db/repositories/drizzle/*.test.ts` — Repository adapters
+- `src/dispatch/*.test.ts` — Dispatch manager
+- `src/git/manager.test.ts` — Worktree operations
+- `src/process/*.test.ts` — Process registry and manager
+- `src/logging/*.test.ts` — Log manager and writer
+
+### E2E Tests (Mocked Agents)
+`src/test/e2e/`:
+| File | Scenarios |
+|------|-----------|
+| `happy-path.test.ts` | Single task, parallel, complex flows |
+| `architect-workflow.test.ts` | Discussion + breakdown agent workflows |
+| `decompose-workflow.test.ts` | Task decomposition with child tasks |
+| `phase-dispatch.test.ts` | Phase-level dispatch with dependencies |
+| `recovery-scenarios.test.ts` | Crash recovery, agent resume |
+| `edge-cases.test.ts` | Boundary conditions |
+| `extended-scenarios.test.ts` | Advanced multi-phase workflows |
+
+### Integration Tests (Real Providers)
+`src/test/integration/real-providers/` — **skipped by default** (cost real money):
+| File | Provider | Cost |
+|------|----------|------|
+| `claude-manager.test.ts` | Claude CLI | ~$0.10 |
+| `codex-manager.test.ts` | Codex | varies |
+| `schema-retry.test.ts` | Claude CLI | ~$0.10 |
+| `crash-recovery.test.ts` | Claude CLI | ~$0.10 |
+
+Enable with env vars: `REAL_CLAUDE_TESTS=1`, `REAL_CODEX_TESTS=1`
+
+## Test Infrastructure
+
+### TestHarness (`src/test/harness.ts`)
+Central test utility providing:
+- In-memory SQLite database with schema applied
+- All 10 repository instances
+- `MockAgentManager` — simulates agent behavior (done, questions, error)
+- `MockWorktreeManager` — in-memory worktree simulator
+- `CapturingEventBus` — captures events for assertions
+- `DefaultDispatchManager` and `DefaultPhaseDispatchManager`
+- 25+ helper methods for test scenarios
+
+### Fixtures (`src/test/fixtures.ts`)
+Pre-built task hierarchies for testing:
+| Fixture | Structure |
+|---------|-----------|
+| `SIMPLE_FIXTURE` | 1 initiative → 1 phase → 1 group → 3 tasks (A→B, A→C deps) |
+| `PARALLEL_FIXTURE` | 1 initiative → 1 phase → 2 groups → 4 independent tasks |
+| `COMPLEX_FIXTURE` | 1 initiative → 2 phases → 4 groups → cross-phase dependencies |
+
+### Real Provider Harness (`src/test/integration/real-providers/harness.ts`)
+- Creates real database, real agent manager with real CLI tools
+- Provides `describeRealClaude()` / `describeRealCodex()` that skip when env var not set
+- `MINIMAL_PROMPTS` — cheap prompts for testing output parsing
+
+## Running Tests
+
+```sh
+# Unit tests
+npm test
+
+# Specific test file
+npm test -- src/agent/manager.test.ts
+
+# Real provider tests (costs money!)
+REAL_CLAUDE_TESTS=1 npm test -- src/test/integration/real-providers/ --test-timeout=300000
+```
--- a/drizzle/0019_add_execution_mode.sql
+++ b/drizzle/0019_add_execution_mode.sql
@@ -0,0 +1 @@
+ALTER TABLE initiatives ADD COLUMN execution_mode TEXT NOT NULL DEFAULT 'review_per_phase';
--- a/drizzle/0020_add_change_sets.sql
+++ b/drizzle/0020_add_change_sets.sql
@@ -0,0 +1,25 @@
+-- Add change_sets and change_set_entries tables
+CREATE TABLE `change_sets` (
+  `id` text PRIMARY KEY NOT NULL,
+  `agent_id` text REFERENCES `agents`(`id`) ON DELETE SET NULL,
+  `agent_name` text NOT NULL,
+  `initiative_id` text NOT NULL REFERENCES `initiatives`(`id`) ON DELETE CASCADE,
+  `mode` text NOT NULL,
+  `summary` text,
+  `status` text NOT NULL DEFAULT 'applied',
+  `reverted_at` integer,
+  `created_at` integer NOT NULL
+);--> statement-breakpoint
+CREATE TABLE `change_set_entries` (
+  `id` text PRIMARY KEY NOT NULL,
+  `change_set_id` text NOT NULL REFERENCES `change_sets`(`id`) ON DELETE CASCADE,
+  `entity_type` text NOT NULL,
+  `entity_id` text NOT NULL,
+  `action` text NOT NULL,
+  `previous_state` text,
+  `new_state` text,
+  `sort_order` integer NOT NULL DEFAULT 0,
+  `created_at` integer NOT NULL
+);--> statement-breakpoint
+CREATE INDEX `change_sets_initiative_id_idx` ON `change_sets`(`initiative_id`);--> statement-breakpoint
+CREATE INDEX `change_set_entries_change_set_id_idx` ON `change_set_entries`(`change_set_id`);
--- a/drizzle/0021_drop_proposals.sql
+++ b/drizzle/0021_drop_proposals.sql
@@ -0,0 +1,2 @@
+-- Drop proposals table (replaced by change_sets + change_set_entries)
+DROP TABLE IF EXISTS `proposals`;
--- a/drizzle/meta/_journal.json
+++ b/drizzle/meta/_journal.json
@@ -134,6 +134,27 @@
      "when": 1771113600000,
      "tag": "0018_drop_phase_number",
      "breakpoints": true
+    },
+    {
+      "idx": 19,
+      "version": "6",
+      "when": 1771200000000,
+      "tag": "0019_add_execution_mode",
+      "breakpoints": true
+    },
+    {
+      "idx": 20,
+      "version": "6",
+      "when": 1771286400000,
+      "tag": "0020_add_change_sets",
+      "breakpoints": true
+    },
+    {
+      "idx": 21,
+      "version": "6",
+      "when": 1771372800000,
+      "tag": "0021_drop_proposals",
+      "breakpoints": true
    }
  ]
 }
--- a/package-lock.json
+++ b/package-lock.json
@@ -1297,7 +1297,6 @@
      "version": "1.7.4",
      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.7.4.tgz",
      "integrity": "sha512-C3HlIdsBxszvm5McXlB8PeOEWfBhcGBTZGkGlWc2U0KFY5IwG5OQEuQ8rq52DZmcHDlPLd+YFBK+cZcytwIFWg==",
-      "devOptional": true,
      "license": "MIT",
      "dependencies": {
        "@floating-ui/utils": "^0.2.10"
@@ -1307,7 +1306,6 @@
      "version": "1.7.5",
      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.7.5.tgz",
      "integrity": "sha512-N0bD2kIPInNHUHehXhMke1rBGs1dwqvC9O9KYMyyjK7iXt7GAhnro7UlcuYcGdS/yYOlq0MAVgrow8IbWJwyqg==",
-      "devOptional": true,
      "license": "MIT",
      "dependencies": {
        "@floating-ui/core": "^1.7.4",
@@ -1318,7 +1316,6 @@
      "version": "2.1.7",
      "resolved": "https://registry.npmjs.org/@floating-ui/react-dom/-/react-dom-2.1.7.tgz",
      "integrity": "sha512-0tLRojf/1Go2JgEVm+3Frg9A3IW8bJgKgdO0BN5RkF//ufuz2joZM63Npau2ff3J6lUVYgDSNzNkR+aH3IVfjg==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@floating-ui/dom": "^1.7.5"
@@ -1332,7 +1329,6 @@
      "version": "0.2.10",
      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.10.tgz",
      "integrity": "sha512-aGTxbpbg8/b5JfU1HXSrbH3wXZuLPJcNEcZQFMxLs3oSzgtVu6nFPkbbGGUvBcUjKV2YyB9Wxxabo+HEH9tcRQ==",
-      "devOptional": true,
      "license": "MIT"
    },
    "node_modules/@isaacs/balanced-match": {
@@ -1477,6 +1473,12 @@
        "url": "https://opencollective.com/popperjs"
      }
    },
+    "node_modules/@radix-ui/number": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/number/-/number-1.1.1.tgz",
+      "integrity": "sha512-MkKCwxlXTgz6CFoJx3pCwn07GKp36+aZyu/u2Ln2VrA5DcdyCZkASEDBTd8x5whTQQL5CiYf4prXKLcgQdv29g==",
+      "license": "MIT"
+    },
    "node_modules/@radix-ui/primitive": {
      "version": "1.1.3",
      "resolved": "https://registry.npmjs.org/@radix-ui/primitive/-/primitive-1.1.3.tgz",
@@ -1487,7 +1489,6 @@
      "version": "1.1.7",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-arrow/-/react-arrow-1.1.7.tgz",
      "integrity": "sha512-F+M1tLhO+mlQaOWspE8Wstg+z6PwxwRd8oQ8IXceWz92kfAmalTRf0EjrouQeo7QssEPfCn05B4Ihs1K9WQ/7w==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@radix-ui/react-primitive": "2.1.3"
@@ -1511,7 +1512,6 @@
      "version": "1.1.7",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-collection/-/react-collection-1.1.7.tgz",
      "integrity": "sha512-Fh9rGN0MoI4ZFUNyfFVNU4y9LUz93u9/0K+yLgA2bwRojxM8JU1DyvvMBabnZPBgMWREAJvU2jjVzq+LrFUglw==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@radix-ui/react-compose-refs": "1.1.2",
@@ -1538,7 +1538,6 @@
      "version": "1.2.3",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
      "integrity": "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@radix-ui/react-compose-refs": "1.1.2"
@@ -1641,7 +1640,6 @@
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-direction/-/react-direction-1.1.1.tgz",
      "integrity": "sha512-1UEWRX6jnOA2y4H5WczZ44gOOjTEmlqv1uNW4GAJEO5+bauCBhv8snY65Iw5/VOS/ghKN9gr2KjnLKxrsvoMVw==",
-      "dev": true,
      "license": "MIT",
      "peerDependencies": {
        "@types/react": "*",
@@ -1878,7 +1876,6 @@
      "version": "1.2.8",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-popper/-/react-popper-1.2.8.tgz",
      "integrity": "sha512-0NJQ4LFFUuWkE7Oxf0htBKS6zLkkjBH+hM1uk7Ng705ReR8m/uelduy1DBo0PyBXPKVnBA6YBlU94MBGXrSBCw==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@floating-ui/react-dom": "^2.0.0",
@@ -2028,6 +2025,67 @@
        }
      }
    },
+    "node_modules/@radix-ui/react-select": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-select/-/react-select-2.2.6.tgz",
+      "integrity": "sha512-I30RydO+bnn2PQztvo25tswPH+wFBjehVGtmagkU78yMdwTwVf12wnAOF+AeP8S2N8xD+5UPbGhkUfPyvT+mwQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/number": "1.1.1",
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-collection": "1.1.7",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-direction": "1.1.1",
+        "@radix-ui/react-dismissable-layer": "1.1.11",
+        "@radix-ui/react-focus-guards": "1.1.3",
+        "@radix-ui/react-focus-scope": "1.1.7",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-popper": "1.2.8",
+        "@radix-ui/react-portal": "1.1.9",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-slot": "1.2.3",
+        "@radix-ui/react-use-callback-ref": "1.1.1",
+        "@radix-ui/react-use-controllable-state": "1.2.2",
+        "@radix-ui/react-use-layout-effect": "1.1.1",
+        "@radix-ui/react-use-previous": "1.1.1",
+        "@radix-ui/react-visually-hidden": "1.2.3",
+        "aria-hidden": "^1.2.4",
+        "react-remove-scroll": "^2.6.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-select/node_modules/@radix-ui/react-slot": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
+      "integrity": "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "1.1.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/@radix-ui/react-slot": {
      "version": "1.2.4",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.4.tgz",
@@ -2131,11 +2189,25 @@
        }
      }
    },
+    "node_modules/@radix-ui/react-use-previous": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-previous/-/react-use-previous-1.1.1.tgz",
+      "integrity": "sha512-2dHfToCj/pzca2Ck724OZ5L0EVrr3eHRNsG/b3xQJLA2hZpVCS99bLAX+hm1IHXDEnzU6by5z/5MIY794/a8NQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/@radix-ui/react-use-rect": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-rect/-/react-use-rect-1.1.1.tgz",
      "integrity": "sha512-QTYuDesS0VtuHNNvMh+CjlKJ4LJickCMUAqjlE3+j8w+RlRpwyX3apEQKGFzbZGdo7XNG1tXa+bQqIE7HIXT2w==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@radix-ui/rect": "1.1.1"
@@ -2154,7 +2226,6 @@
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/@radix-ui/react-use-size/-/react-use-size-1.1.1.tgz",
      "integrity": "sha512-ewrXRDTAqAXlkl6t/fkXWNAhFX9I+CkKlw6zjEwk86RSPKwZr3xpBRso655aqYafwtnbpHLj6toFzmd6xdVptQ==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "@radix-ui/react-use-layout-effect": "1.1.1"
@@ -2169,11 +2240,33 @@
        }
      }
    },
+    "node_modules/@radix-ui/react-visually-hidden": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-visually-hidden/-/react-visually-hidden-1.2.3.tgz",
+      "integrity": "sha512-pzJq12tEaaIhqjbzpCuv/OypJY/BPavOofm+dbab+MHLajy277+1lLm6JFcGgF5eskJ6mquGirhXY2GD/8u8Ug==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-primitive": "2.1.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/@radix-ui/rect": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/@radix-ui/rect/-/rect-1.1.1.tgz",
      "integrity": "sha512-HPwpGIzkl28mWyZqG52jiqDJ12waP11Pa1lGoiyUkIEuMLBP0oeK/C89esbXrxsky5we7dfd8U58nm0SgAWpVw==",
-      "dev": true,
      "license": "MIT"
    },
    "node_modules/@remirror/core-constants": {
@@ -8016,6 +8109,7 @@
        "@codewalk-district/shared": "*",
        "@radix-ui/react-dialog": "^1.1.15",
        "@radix-ui/react-label": "^2.1.8",
+        "@radix-ui/react-select": "^2.2.6",
        "@tanstack/react-query": "^5.75.0",
        "@tanstack/react-router": "^1.158.0",
        "@tiptap/extension-link": "^3.19.0",
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -1,3 +1,3 @@
 export type { AppRouter } from './trpc.js';
-export type { Initiative, Phase, Task, Agent, Message, PendingQuestions, QuestionItem, SubscriptionEvent, Project, Proposal } from './types.js';
+export type { Initiative, Phase, Task, Agent, Message, PendingQuestions, QuestionItem, SubscriptionEvent, Project, ChangeSet, ChangeSetEntry } from './types.js';
 export { sortByPriorityAndQueueTime, topologicalSortPhases, groupPhasesByDependencyLevel, type SortableItem, type PhaseForSort, type DependencyEdge, type PipelineColumn } from './utils.js';
--- a/packages/shared/src/types.ts
+++ b/packages/shared/src/types.ts
@@ -1,6 +1,9 @@
-export type { Initiative, Phase, Task, Agent, Message, Page, Project, Account, Proposal } from '../../../src/db/schema.js';
+export type { Initiative, Phase, Task, Agent, Message, Page, Project, Account, ChangeSet, ChangeSetEntry } from '../../../src/db/schema.js';
 export type { PendingQuestions, QuestionItem } from '../../../src/agent/types.js';

+export type ExecutionMode = 'yolo' | 'review_per_phase';
+export type PhaseStatus = 'pending' | 'approved' | 'in_progress' | 'completed' | 'blocked' | 'pending_review';
+
 /**
 * Shape of events received from tRPC subscription streams.
 * Used by the frontend in onData callbacks.
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -13,6 +13,7 @@
    "@codewalk-district/shared": "*",
    "@radix-ui/react-dialog": "^1.1.15",
    "@radix-ui/react-label": "^2.1.8",
+    "@radix-ui/react-select": "^2.2.6",
    "@tanstack/react-query": "^5.75.0",
    "@tanstack/react-router": "^1.158.0",
    "@tiptap/extension-link": "^3.19.0",
--- a/packages/web/src/components/ChangeSetBanner.tsx
+++ b/packages/web/src/components/ChangeSetBanner.tsx
@@ -0,0 +1,139 @@
+import { useState, useCallback } from "react";
+import { ChevronDown, ChevronRight, Undo2 } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { trpc } from "@/lib/trpc";
+import type { ChangeSet } from "@codewalk-district/shared";
+
+interface ChangeSetBannerProps {
+  changeSet: ChangeSet;
+  onDismiss: () => void;
+}
+
+const MODE_LABELS: Record<string, string> = {
+  breakdown: "phases",
+  decompose: "tasks",
+  refine: "pages",
+};
+
+export function ChangeSetBanner({ changeSet, onDismiss }: ChangeSetBannerProps) {
+  const [expanded, setExpanded] = useState(false);
+  const [conflicts, setConflicts] = useState<string[] | null>(null);
+
+  const detailQuery = trpc.getChangeSet.useQuery(
+    { id: changeSet.id },
+    { enabled: expanded },
+  );
+
+  const revertMutation = trpc.revertChangeSet.useMutation({
+    onSuccess: (result) => {
+      if (!result.success && "conflicts" in result) {
+        setConflicts(result.conflicts);
+      } else {
+        setConflicts(null);
+      }
+    },
+  });
+
+  const handleRevert = useCallback(
+    (force?: boolean) => {
+      revertMutation.mutate({ id: changeSet.id, force });
+    },
+    [changeSet.id, revertMutation],
+  );
+
+  const entries = detailQuery.data?.entries ?? [];
+  const entityLabel = MODE_LABELS[changeSet.mode] ?? "entities";
+  const isReverted = changeSet.status === "reverted";
+
+  return (
+    <div className="rounded-lg border border-border bg-card p-3 space-y-2">
+      <div className="flex items-center justify-between gap-2">
+        <div className="flex items-center gap-2 min-w-0">
+          <button
+            className="flex items-center gap-1 text-sm font-medium hover:text-foreground/80"
+            onClick={() => setExpanded(!expanded)}
+          >
+            {expanded ? (
+              <ChevronDown className="h-3.5 w-3.5 shrink-0" />
+            ) : (
+              <ChevronRight className="h-3.5 w-3.5 shrink-0" />
+            )}
+            {changeSet.summary ??
+              `Agent ${isReverted ? "reverted" : "applied"} ${entityLabel}`}
+          </button>
+          {isReverted && (
+            <span className="text-xs text-muted-foreground italic">
+              (reverted)
+            </span>
+          )}
+        </div>
+        <div className="flex gap-1.5 shrink-0">
+          {!isReverted && (
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => handleRevert()}
+              disabled={revertMutation.isPending}
+              className="gap-1"
+            >
+              <Undo2 className="h-3 w-3" />
+              {revertMutation.isPending ? "Reverting..." : "Revert"}
+            </Button>
+          )}
+          <Button variant="ghost" size="sm" onClick={onDismiss}>
+            Dismiss
+          </Button>
+        </div>
+      </div>
+
+      {conflicts && (
+        <div className="rounded border border-amber-200 bg-amber-50 dark:border-amber-800 dark:bg-amber-950 p-2 space-y-2">
+          <p className="text-xs font-medium text-amber-800 dark:text-amber-200">
+            Conflicts detected:
+          </p>
+          <ul className="text-xs text-amber-700 dark:text-amber-300 list-disc pl-4 space-y-0.5">
+            {conflicts.map((c, i) => (
+              <li key={i}>{c}</li>
+            ))}
+          </ul>
+          <Button
+            variant="outline"
+            size="sm"
+            onClick={() => {
+              setConflicts(null);
+              handleRevert(true);
+            }}
+            disabled={revertMutation.isPending}
+          >
+            Force Revert
+          </Button>
+        </div>
+      )}
+
+      {expanded && (
+        <div className="pl-5 space-y-1 text-xs text-muted-foreground">
+          {detailQuery.isLoading && <p>Loading entries...</p>}
+          {entries.map((entry) => (
+            <div key={entry.id} className="flex items-center gap-2">
+              <span className="font-mono">
+                {entry.action === "create" ? "+" : entry.action === "delete" ? "-" : "~"}
+              </span>
+              <span>
+                {entry.entityType}
+                {entry.newState && (() => {
+                  try {
+                    const parsed = JSON.parse(entry.newState);
+                    return parsed.name || parsed.title ? `: ${parsed.name || parsed.title}` : "";
+                  } catch { return ""; }
+                })()}
+              </span>
+            </div>
+          ))}
+          {entries.length === 0 && !detailQuery.isLoading && (
+            <p>No entries</p>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}
--- a/packages/web/src/components/CreateInitiativeDialog.tsx
+++ b/packages/web/src/components/CreateInitiativeDialog.tsx
@@ -10,6 +10,13 @@ import {
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 import { toast } from "sonner";
 import { trpc } from "@/lib/trpc";
 import { ProjectPicker } from "./ProjectPicker";
@@ -25,6 +32,8 @@ export function CreateInitiativeDialog({
 }: CreateInitiativeDialogProps) {
  const [name, setName] = useState("");
  const [projectIds, setProjectIds] = useState<string[]>([]);
+  const [executionMode, setExecutionMode] = useState<"yolo" | "review_per_phase">("review_per_phase");
+  const [mergeTarget, setMergeTarget] = useState("");
  const [error, setError] = useState<string | null>(null);

  const utils = trpc.useUtils();
@@ -63,6 +72,8 @@ export function CreateInitiativeDialog({
    if (open) {
      setName("");
      setProjectIds([]);
+      setExecutionMode("review_per_phase");
+      setMergeTarget("");
      setError(null);
    }
  }, [open]);
@@ -73,6 +84,8 @@ export function CreateInitiativeDialog({
    createMutation.mutate({
      name: name.trim(),
      projectIds: projectIds.length > 0 ? projectIds : undefined,
+      executionMode,
+      mergeTarget: mergeTarget.trim() || null,
    });
  }

@@ -98,6 +111,32 @@ export function CreateInitiativeDialog({
              autoFocus
            />
          </div>
+          <div className="space-y-2">
+            <Label>Execution Mode</Label>
+            <Select value={executionMode} onValueChange={(v) => setExecutionMode(v as "yolo" | "review_per_phase")}>
+              <SelectTrigger>
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="review_per_phase">Review per Phase</SelectItem>
+                <SelectItem value="yolo">YOLO (auto-merge)</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+          <div className="space-y-2">
+            <Label htmlFor="merge-target">
+              Merge Target Branch{" "}
+              <span className="text-muted-foreground font-normal">
+                (optional)
+              </span>
+            </Label>
+            <Input
+              id="merge-target"
+              placeholder="e.g. feat/auth"
+              value={mergeTarget}
+              onChange={(e) => setMergeTarget(e.target.value)}
+            />
+          </div>
          <div className="space-y-2">
            <Label>
              Projects{" "}
--- a/packages/web/src/components/ExecutionTab.tsx
+++ b/packages/web/src/components/ExecutionTab.tsx
@@ -22,6 +22,7 @@ interface ExecutionTabProps {
  phasesLoading: boolean;
  phasesLoaded: boolean;
  dependencyEdges: DependencyEdge[];
+  mergeTarget?: string | null;
 }

 export function ExecutionTab({
@@ -30,6 +31,7 @@ export function ExecutionTab({
  phasesLoading,
  phasesLoaded,
  dependencyEdges,
+  mergeTarget,
 }: ExecutionTabProps) {
  // Topological sort
  const sortedPhases = useMemo(
@@ -257,6 +259,7 @@ export function ExecutionTab({
              tasksLoading={allTasksQuery.isLoading}
              onDelete={() => deletePhase.mutate({ id: activePhase.id })}
              decomposeAgent={decomposeAgentByPhase.get(activePhase.id) ?? null}
+              mergeTarget={mergeTarget}
            />
          ) : (
            <PhaseDetailEmpty />
--- a/packages/web/src/components/InitiativeHeader.tsx
+++ b/packages/web/src/components/InitiativeHeader.tsx
@@ -1,5 +1,5 @@
 import { useState } from "react";
-import { ChevronLeft, Pencil, Check } from "lucide-react";
+import { ChevronLeft, Pencil, Check, GitBranch } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { StatusBadge } from "@/components/StatusBadge";
@@ -12,6 +12,8 @@ export interface InitiativeHeaderProps {
    id: string;
    name: string;
    status: string;
+    executionMode?: string;
+    mergeTarget?: string | null;
  };
  projects?: Array<{ id: string; name: string; url: string }>;
  onBack: () => void;
@@ -60,6 +62,24 @@ export function InitiativeHeader({
          </Button>
          <h1 className="text-xl font-semibold">{initiative.name}</h1>
          <StatusBadge status={initiative.status} />
+          {initiative.executionMode && (
+            <Badge
+              variant="outline"
+              className={
+                initiative.executionMode === "yolo"
+                  ? "border-orange-300 text-orange-700 text-[10px]"
+                  : "border-blue-300 text-blue-700 text-[10px]"
+              }
+            >
+              {initiative.executionMode === "yolo" ? "YOLO" : "REVIEW"}
+            </Badge>
+          )}
+          {initiative.mergeTarget && (
+            <Badge variant="outline" className="gap-1 text-[10px] font-mono">
+              <GitBranch className="h-3 w-3" />
+              {initiative.mergeTarget}
+            </Badge>
+          )}
          {!editing && projects && projects.length > 0 && (
            <>
              {projects.map((p) => (
--- a/packages/web/src/components/StatusBadge.tsx
+++ b/packages/web/src/components/StatusBadge.tsx
@@ -12,6 +12,8 @@ const statusStyles: Record<string, string> = {
  approved: "bg-amber-100 text-amber-800 hover:bg-amber-100/80 border-amber-200",
  in_progress: "bg-blue-100 text-blue-800 hover:bg-blue-100/80 border-blue-200",
  blocked: "bg-red-100 text-red-800 hover:bg-red-100/80 border-red-200",
+  pending_review: "bg-amber-100 text-amber-800 hover:bg-amber-100/80 border-amber-200",
+  pending_approval: "bg-amber-100 text-amber-800 hover:bg-amber-100/80 border-amber-200",
 };

 const defaultStyle = "bg-gray-100 text-gray-800 hover:bg-gray-100/80 border-gray-200";
--- a/packages/web/src/components/editor/ContentProposalReview.tsx
+++ b/packages/web/src/components/editor/ContentProposalReview.tsx
@@ -1,234 +0,0 @@
-import { useState, useCallback, useMemo } from "react";
-import { Check, ChevronDown, ChevronRight, AlertTriangle } from "lucide-react";
-import { Button } from "@/components/ui/button";
-import { trpc } from "@/lib/trpc";
-import type { Proposal } from "@codewalk-district/shared";
-
-interface ContentProposalReviewProps {
-  proposals: Proposal[];
-  agentCreatedAt: Date;
-  agentId: string;
-  onDismiss: () => void;
-}
-
-export function ContentProposalReview({
-  proposals,
-  agentCreatedAt,
-  agentId,
-  onDismiss,
-}: ContentProposalReviewProps) {
-  const [accepted, setAccepted] = useState<Set<string>>(new Set());
-  const [acceptError, setAcceptError] = useState<string | null>(null);
-  const utils = trpc.useUtils();
-
-  const acceptMutation = trpc.acceptProposal.useMutation({
-    onMutate: async ({ id }) => {
-      await utils.listProposals.cancel({ agentId });
-      const previousProposals = utils.listProposals.getData({ agentId });
-      utils.listProposals.setData({ agentId }, (old = []) =>
-        old.map(p => p.id === id ? { ...p, status: 'accepted' as const } : p)
-      );
-      return { previousProposals };
-    },
-    onSuccess: () => {
-      setAcceptError(null);
-    },
-    onError: (err, _variables, context) => {
-      if (context?.previousProposals) {
-        utils.listProposals.setData({ agentId }, context.previousProposals);
-      }
-      setAcceptError(err.message);
-    },
-  });
-
-  const acceptAllMutation = trpc.acceptAllProposals.useMutation({
-    onSuccess: (result) => {
-      if (result.failed > 0) {
-        setAcceptError(`${result.failed} proposal(s) failed: ${result.errors.join('; ')}`);
-      } else {
-        setAcceptError(null);
-        onDismiss();
-      }
-    },
-  });
-
-  const dismissAllMutation = trpc.dismissAllProposals.useMutation({
-    onMutate: async () => {
-      await utils.listProposals.cancel({ agentId });
-      const previousProposals = utils.listProposals.getData({ agentId });
-      utils.listProposals.setData({ agentId }, []);
-      return { previousProposals };
-    },
-    onError: (_err, _variables, context) => {
-      if (context?.previousProposals) {
-        utils.listProposals.setData({ agentId }, context.previousProposals);
-      }
-    },
-  });
-
-  const handleAccept = useCallback(
-    async (proposal: Proposal) => {
-      await acceptMutation.mutateAsync({ id: proposal.id });
-      setAccepted((prev) => new Set(prev).add(proposal.id));
-    },
-    [acceptMutation],
-  );
-
-  const handleAcceptAll = useCallback(async () => {
-    await acceptAllMutation.mutateAsync({ agentId });
-  }, [acceptAllMutation, agentId]);
-
-  const handleDismissAll = useCallback(() => {
-    dismissAllMutation.mutate({ agentId });
-  }, [dismissAllMutation, agentId]);
-
-  // Batch-fetch page updatedAt timestamps for staleness check (eliminates N+1)
-  const pageTargetIds = useMemo(() => {
-    const ids = new Set<string>();
-    for (const p of proposals) {
-      if (p.targetType === 'page' && p.targetId) ids.add(p.targetId);
-    }
-    return [...ids];
-  }, [proposals]);
-
-  const pageUpdatedAtMap = trpc.getPageUpdatedAtMap.useQuery(
-    { ids: pageTargetIds },
-    { enabled: pageTargetIds.length > 0 },
-  );
-
-  const allAccepted = proposals.every((p) => accepted.has(p.id) || p.status === 'accepted');
-
-  return (
-    <div className="rounded-lg border border-border bg-card p-4 space-y-3">
-      <div className="flex items-center justify-between">
-        <h3 className="text-sm font-semibold">
-          Agent Proposals ({proposals.length})
-        </h3>
-        <div className="flex gap-2">
-          {!allAccepted && (
-            <Button
-              variant="outline"
-              size="sm"
-              onClick={handleAcceptAll}
-              disabled={acceptAllMutation.isPending}
-            >
-              Accept All
-            </Button>
-          )}
-          <Button
-            variant="ghost"
-            size="sm"
-            onClick={handleDismissAll}
-            disabled={dismissAllMutation.isPending}
-          >
-            {dismissAllMutation.isPending ? "Dismissing..." : "Dismiss"}
-          </Button>
-        </div>
-      </div>
-
-      {acceptError && (
-        <div className="flex items-center gap-1.5 text-xs text-destructive bg-destructive/10 rounded px-2 py-1.5">
-          <AlertTriangle className="h-3 w-3 shrink-0" />
-          <span>{acceptError}</span>
-        </div>
-      )}
-
-      <div className="space-y-2">
-        {proposals.map((proposal) => (
-          <ProposalCard
-            key={proposal.id}
-            proposal={proposal}
-            isAccepted={accepted.has(proposal.id) || proposal.status === 'accepted'}
-            agentCreatedAt={agentCreatedAt}
-            pageUpdatedAt={proposal.targetType === 'page' && proposal.targetId
-              ? pageUpdatedAtMap.data?.[proposal.targetId] ?? null
-              : null}
-            onAccept={() => handleAccept(proposal)}
-            isAccepting={acceptMutation.isPending}
-          />
-        ))}
-      </div>
-    </div>
-  );
-}
-
-interface ProposalCardProps {
-  proposal: Proposal;
-  isAccepted: boolean;
-  agentCreatedAt: Date;
-  pageUpdatedAt: string | null;
-  onAccept: () => void;
-  isAccepting: boolean;
-}
-
-function ProposalCard({
-  proposal,
-  isAccepted,
-  agentCreatedAt,
-  pageUpdatedAt,
-  onAccept,
-  isAccepting,
-}: ProposalCardProps) {
-  const [expanded, setExpanded] = useState(false);
-
-  const isStale =
-    proposal.targetType === 'page' &&
-    pageUpdatedAt && new Date(pageUpdatedAt) > agentCreatedAt;
-
-  return (
-    <div className="rounded border border-border p-3 space-y-2">
-      <div className="flex items-start justify-between gap-2">
-        <div className="flex-1 min-w-0">
-          <button
-            className="flex items-center gap-1 text-sm font-medium hover:text-foreground/80"
-            onClick={() => setExpanded(!expanded)}
-          >
-            {expanded ? (
-              <ChevronDown className="h-3.5 w-3.5 shrink-0" />
-            ) : (
-              <ChevronRight className="h-3.5 w-3.5 shrink-0" />
-            )}
-            {proposal.title}
-          </button>
-          {proposal.summary && (
-            <p className="text-xs text-muted-foreground mt-0.5 pl-5">
-              {proposal.summary}
-            </p>
-          )}
-        </div>
-
-        {isAccepted ? (
-          <div className="flex items-center gap-1 text-xs text-green-600 shrink-0">
-            <Check className="h-3.5 w-3.5" />
-            Accepted
-          </div>
-        ) : (
-          <Button
-            variant="outline"
-            size="sm"
-            onClick={onAccept}
-            disabled={isAccepting}
-            className="shrink-0"
-          >
-            Accept
-          </Button>
-        )}
-      </div>
-
-      {isStale && !isAccepted && (
-        <div className="flex items-center gap-1.5 text-xs text-yellow-600 pl-5">
-          <AlertTriangle className="h-3 w-3" />
-          Content was modified since agent started
-        </div>
-      )}
-
-      {expanded && proposal.content && (
-        <div className="pl-5 pt-1">
-          <div className="prose prose-sm max-w-none rounded bg-muted/50 p-3 text-xs overflow-auto max-h-64">
-            <pre className="whitespace-pre-wrap text-xs">{proposal.content}</pre>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}
--- a/packages/web/src/components/editor/RefineAgentPanel.tsx
+++ b/packages/web/src/components/editor/RefineAgentPanel.tsx
@@ -2,7 +2,7 @@ import { useCallback, useEffect } from "react";
 import { Loader2, AlertCircle } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { QuestionForm } from "@/components/QuestionForm";
-import { ContentProposalReview } from "./ContentProposalReview";
+import { ChangeSetBanner } from "@/components/ChangeSetBanner";
 import { RefineSpawnDialog } from "../RefineSpawnDialog";
 import { useRefineAgent } from "@/hooks";

@@ -12,7 +12,7 @@ interface RefineAgentPanelProps {

 export function RefineAgentPanel({ initiativeId }: RefineAgentPanelProps) {
  // All agent logic is now encapsulated in the hook
-  const { state, agent, questions, proposals, spawn, resume, stop, dismiss, refresh } = useRefineAgent(initiativeId);
+  const { state, agent, questions, changeSet, spawn, resume, stop, dismiss, refresh } = useRefineAgent(initiativeId);

  // spawn.mutate and resume.mutate are stable (ref-backed in useRefineAgent),
  // so these callbacks won't change on every render.
@@ -95,26 +95,24 @@ export function RefineAgentPanel({ initiativeId }: RefineAgentPanelProps) {
    );
  }

-  // Completed with proposals
-  if (state === "completed" && proposals && proposals.length > 0) {
+  // Completed with change set
+  if (state === "completed" && changeSet) {
    return (
      <div className="mb-3">
-        <ContentProposalReview
-          proposals={proposals}
-          agentCreatedAt={new Date(agent!.createdAt)}
-          agentId={agent!.id}
+        <ChangeSetBanner
+          changeSet={changeSet}
          onDismiss={handleDismiss}
        />
      </div>
    );
  }

-  // Completed without proposals (or generic result)
+  // Completed without changes
  if (state === "completed") {
    return (
      <div className="mb-3 flex items-center gap-2 rounded-lg border border-border bg-card px-3 py-2">
        <span className="text-sm text-muted-foreground">
-          Agent completed — no changes proposed.
+          Agent completed — no changes made.
        </span>
        <Button variant="ghost" size="sm" onClick={handleDismiss}>
          Dismiss
--- a/packages/web/src/components/execution/BreakdownSection.tsx
+++ b/packages/web/src/components/execution/BreakdownSection.tsx
@@ -3,7 +3,7 @@ import { Loader2, Plus, Sparkles } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { trpc } from "@/lib/trpc";
 import { useSpawnMutation } from "@/hooks/useSpawnMutation";
-import { ContentProposalReview } from "@/components/editor/ContentProposalReview";
+import { ChangeSetBanner } from "@/components/ChangeSetBanner";

 interface BreakdownSectionProps {
  initiativeId: string;
@@ -38,14 +38,14 @@ export function BreakdownSection({

  const isBreakdownRunning = breakdownAgent?.status === "running";

-  // Query proposals when we have a completed breakdown agent
-  const proposalsQuery = trpc.listProposals.useQuery(
+  // Query change sets when we have a completed breakdown agent
+  const changeSetsQuery = trpc.listChangeSets.useQuery(
    { agentId: breakdownAgent?.id ?? "" },
    { enabled: !!breakdownAgent && breakdownAgent.status === "idle" },
  );
-  const pendingProposals = useMemo(
-    () => (proposalsQuery.data ?? []).filter((p) => p.status === "pending"),
-    [proposalsQuery.data],
+  const latestChangeSet = useMemo(
+    () => (changeSetsQuery.data ?? []).find((cs) => cs.status === "applied") ?? null,
+    [changeSetsQuery.data],
  );

  const dismissMutation = trpc.dismissAgent.useMutation();
@@ -68,19 +68,17 @@ export function BreakdownSection({
    return null;
  }

-  // If phases exist and no pending proposals to review, hide section
-  if (phases.length > 0 && pendingProposals.length === 0) {
+  // If phases exist and no change set to show, hide section
+  if (phases.length > 0 && !latestChangeSet) {
    return null;
  }

-  // Show proposal review when breakdown agent completed with pending proposals
-  if (breakdownAgent?.status === "idle" && pendingProposals.length > 0) {
+  // Show change set banner when breakdown agent completed
+  if (breakdownAgent?.status === "idle" && latestChangeSet) {
    return (
      <div className="py-4">
-        <ContentProposalReview
-          proposals={pendingProposals}
-          agentCreatedAt={new Date(breakdownAgent.createdAt)}
-          agentId={breakdownAgent.id}
+        <ChangeSetBanner
+          changeSet={latestChangeSet}
          onDismiss={handleDismiss}
        />
      </div>
--- a/packages/web/src/components/execution/PhaseDetailPanel.tsx
+++ b/packages/web/src/components/execution/PhaseDetailPanel.tsx
@@ -1,11 +1,11 @@
 import { useEffect, useState, useRef, useMemo, useCallback } from "react";
-import { Loader2, MoreHorizontal, Plus, Sparkles, Trash2, X } from "lucide-react";
+import { GitBranch, Loader2, MoreHorizontal, Plus, Sparkles, Trash2, X } from "lucide-react";
 import { toast } from "sonner";
 import { trpc } from "@/lib/trpc";
 import { StatusBadge } from "@/components/StatusBadge";
 import { TaskRow, type SerializedTask } from "@/components/TaskRow";
 import { PhaseContentEditor } from "@/components/editor/PhaseContentEditor";
-import { ContentProposalReview } from "@/components/editor/ContentProposalReview";
+import { ChangeSetBanner } from "@/components/ChangeSetBanner";
 import { Skeleton } from "@/components/Skeleton";
 import { Button } from "@/components/ui/button";
 import {
@@ -36,6 +36,7 @@ interface PhaseDetailPanelProps {
  tasks: SerializedTask[];
  tasksLoading: boolean;
  onDelete?: () => void;
+  mergeTarget?: string | null;
  decomposeAgent: {
    id: string;
    status: string;
@@ -52,6 +53,7 @@ export function PhaseDetailPanel({
  tasks,
  tasksLoading,
  onDelete,
+  mergeTarget,
  decomposeAgent,
 }: PhaseDetailPanelProps) {
  const { setSelectedTaskId, handleTaskCounts, handleRegisterTasks } =
@@ -135,14 +137,14 @@ export function PhaseDetailPanel({
    handleRegisterTasks(phase.id, entries);
  }, [tasks, phase.id, displayIndex, phase.name, handleTaskCounts, handleRegisterTasks]);

-  // --- Proposals for decompose agent ---
-  const proposalsQuery = trpc.listProposals.useQuery(
+  // --- Change sets for decompose agent ---
+  const changeSetsQuery = trpc.listChangeSets.useQuery(
    { agentId: decomposeAgent?.id ?? "" },
    { enabled: !!decomposeAgent && decomposeAgent.status === "idle" },
  );
-  const pendingProposals = useMemo(
-    () => (proposalsQuery.data ?? []).filter((p) => p.status === "pending"),
-    [proposalsQuery.data],
+  const latestChangeSet = useMemo(
+    () => (changeSetsQuery.data ?? []).find((cs) => cs.status === "applied") ?? null,
+    [changeSetsQuery.data],
  );

  // --- Decompose spawn ---
@@ -152,13 +154,20 @@ export function PhaseDetailPanel({
    decomposeMutation.mutate({ phaseId: phase.id });
  }, [phase.id, decomposeMutation]);

-  // --- Dismiss handler for proposal review ---
+  // --- Dismiss handler for decompose agent ---
  const dismissMutation = trpc.dismissAgent.useMutation();
  const handleDismissDecompose = useCallback(() => {
    if (!decomposeAgent) return;
    dismissMutation.mutate({ id: decomposeAgent.id });
  }, [decomposeAgent, dismissMutation]);

+  // Compute phase branch name if initiative has a merge target
+  const phaseBranch = mergeTarget
+    ? `${mergeTarget}-phase-${phase.name.toLowerCase().replace(/[^a-z0-9]+/g, "-").replace(/^-|-$/g, "")}`
+    : null;
+
+  const isPendingReview = phase.status === "pending_review";
+
  const sortedTasks = sortByPriorityAndQueueTime(tasks);
  const hasTasks = tasks.length > 0;
  const isDecomposeRunning =
@@ -166,8 +175,8 @@ export function PhaseDetailPanel({
    decomposeAgent?.status === "waiting_for_input";
  const showBreakdownButton =
    !decomposeAgent && !hasTasks;
-  const showProposals =
-    decomposeAgent?.status === "idle" && pendingProposals.length > 0;
+  const showChangeSet =
+    decomposeAgent?.status === "idle" && !!latestChangeSet;

  return (
    <div className="space-y-6">
@@ -198,6 +207,12 @@ export function PhaseDetailPanel({
          </h3>
        )}
        <StatusBadge status={phase.status} />
+        {phaseBranch && ["in_progress", "completed", "pending_review"].includes(phase.status) && (
+          <span className="inline-flex items-center gap-1 rounded-md border border-border px-2 py-0.5 text-[10px] font-mono text-muted-foreground">
+            <GitBranch className="h-3 w-3" />
+            {phaseBranch}
+          </span>
+        )}

        {/* Breakdown button in header */}
        {showBreakdownButton && (
@@ -243,6 +258,16 @@ export function PhaseDetailPanel({
        </DropdownMenu>
      </div>

+      {/* Pending review banner */}
+      {isPendingReview && (
+        <div className="rounded-md border border-amber-200 bg-amber-50 px-4 py-3 dark:border-amber-800 dark:bg-amber-950">
+          <p className="text-sm font-medium text-amber-800 dark:text-amber-200">
+            This phase is pending review. Switch to the{" "}
+            <span className="font-semibold">Review</span> tab to view the diff and approve.
+          </p>
+        </div>
+      )}
+
      {/* Tiptap Editor */}
      <PhaseContentEditor phaseId={phase.id} initiativeId={initiativeId} />

@@ -317,12 +342,10 @@ export function PhaseDetailPanel({
        )}
      </div>

-      {/* Decompose proposals */}
-      {showProposals && (
-        <ContentProposalReview
-          proposals={pendingProposals as any}
-          agentCreatedAt={new Date(decomposeAgent!.createdAt)}
-          agentId={decomposeAgent!.id}
+      {/* Decompose change set */}
+      {showChangeSet && (
+        <ChangeSetBanner
+          changeSet={latestChangeSet!}
          onDismiss={handleDismissDecompose}
        />
      )}
--- a/packages/web/src/components/review/ReviewTab.tsx
+++ b/packages/web/src/components/review/ReviewTab.tsx
@@ -1,6 +1,7 @@
-import { useState, useCallback, useRef } from "react";
+import { useState, useCallback, useMemo, useRef } from "react";
 import { toast } from "sonner";
-import { DUMMY_REVIEW } from "./dummy-data";
+import { trpc } from "@/lib/trpc";
+import { parseUnifiedDiff } from "./parse-diff";
 import { DiffViewer } from "./DiffViewer";
 import { ReviewSidebar } from "./ReviewSidebar";
 import type { ReviewComment, ReviewStatus, DiffLine } from "./types";
@@ -9,11 +10,44 @@ interface ReviewTabProps {
  initiativeId: string;
 }

-export function ReviewTab({ initiativeId: _initiativeId }: ReviewTabProps) {
-  const [comments, setComments] = useState<ReviewComment[]>(DUMMY_REVIEW.comments);
-  const [status, setStatus] = useState<ReviewStatus>(DUMMY_REVIEW.status);
+export function ReviewTab({ initiativeId }: ReviewTabProps) {
+  const [comments, setComments] = useState<ReviewComment[]>([]);
+  const [status, setStatus] = useState<ReviewStatus>("pending");
  const fileRefs = useRef<Map<string, HTMLDivElement>>(new Map());

+  // Fetch phases for this initiative
+  const phasesQuery = trpc.listPhases.useQuery({ initiativeId });
+  const pendingReviewPhases = useMemo(
+    () => (phasesQuery.data ?? []).filter((p) => p.status === "pending_review"),
+    [phasesQuery.data],
+  );
+
+  // Select first pending review phase
+  const [selectedPhaseId, setSelectedPhaseId] = useState<string | null>(null);
+  const activePhaseId = selectedPhaseId ?? pendingReviewPhases[0]?.id ?? null;
+
+  // Fetch diff for active phase
+  const diffQuery = trpc.getPhaseReviewDiff.useQuery(
+    { phaseId: activePhaseId! },
+    { enabled: !!activePhaseId },
+  );
+
+  const approveMutation = trpc.approvePhaseReview.useMutation({
+    onSuccess: () => {
+      setStatus("approved");
+      toast.success("Phase approved and merged");
+      phasesQuery.refetch();
+    },
+    onError: (err) => {
+      toast.error(err.message);
+    },
+  });
+
+  const files = useMemo(() => {
+    if (!diffQuery.data?.rawDiff) return [];
+    return parseUnifiedDiff(diffQuery.data.rawDiff);
+  }, [diffQuery.data?.rawDiff]);
+
  const handleAddComment = useCallback(
    (filePath: string, lineNumber: number, lineType: DiffLine["type"], body: string) => {
      const newComment: ReviewComment = {
@@ -45,9 +79,9 @@ export function ReviewTab({ initiativeId: _initiativeId }: ReviewTabProps) {
  }, []);

  const handleApprove = useCallback(() => {
-    setStatus("approved");
-    toast.success("Review approved");
-  }, []);
+    if (!activePhaseId) return;
+    approveMutation.mutate({ phaseId: activePhaseId });
+  }, [activePhaseId, approveMutation]);

  const handleRequestChanges = useCallback(() => {
    setStatus("changes_requested");
@@ -63,42 +97,85 @@ export function ReviewTab({ initiativeId: _initiativeId }: ReviewTabProps) {
    }
  }, []);

-  return (
-    <div className="grid grid-cols-1 gap-6 lg:grid-cols-[1fr_300px]">
-      {/* Left: Diff */}
-      <div className="min-w-0">
-        <div className="flex items-center justify-between border-b border-border pb-3 mb-4">
-          <h2 className="text-lg font-semibold">Review</h2>
-          <span className="text-xs text-muted-foreground">
-            {comments.filter((c) => !c.resolved).length} unresolved thread
-            {comments.filter((c) => !c.resolved).length !== 1 ? "s" : ""}
-          </span>
-        </div>
-        <DiffViewer
-          files={DUMMY_REVIEW.files}
-          comments={comments}
-          onAddComment={handleAddComment}
-          onResolveComment={handleResolveComment}
-          onUnresolveComment={handleUnresolveComment}
-        />
+  if (pendingReviewPhases.length === 0) {
+    return (
+      <div className="flex h-64 items-center justify-center text-muted-foreground">
+        <p>No phases pending review</p>
      </div>
+    );
+  }

-      {/* Right: Sidebar */}
-      <div className="w-full lg:w-[300px]">
-        <ReviewSidebar
-          title={DUMMY_REVIEW.title}
-          description={DUMMY_REVIEW.description}
-          author={DUMMY_REVIEW.author}
-          status={status}
-          sourceBranch={DUMMY_REVIEW.sourceBranch}
-          targetBranch={DUMMY_REVIEW.targetBranch}
-          files={DUMMY_REVIEW.files}
-          comments={comments}
-          onApprove={handleApprove}
-          onRequestChanges={handleRequestChanges}
-          onFileClick={handleFileClick}
-        />
-      </div>
+  const activePhaseName = diffQuery.data?.phaseName ?? pendingReviewPhases.find(p => p.id === activePhaseId)?.name ?? "Phase";
+
+  return (
+    <div className="space-y-4">
+      {/* Phase selector if multiple pending */}
+      {pendingReviewPhases.length > 1 && (
+        <div className="flex gap-2">
+          {pendingReviewPhases.map((phase) => (
+            <button
+              key={phase.id}
+              onClick={() => setSelectedPhaseId(phase.id)}
+              className={`rounded-md border px-3 py-1.5 text-sm transition-colors ${
+                phase.id === activePhaseId
+                  ? "border-primary bg-primary/10 font-medium"
+                  : "border-border hover:bg-muted"
+              }`}
+            >
+              {phase.name}
+            </button>
+          ))}
+        </div>
+      )}
+
+      {diffQuery.isLoading ? (
+        <div className="flex h-64 items-center justify-center text-muted-foreground">
+          Loading diff...
+        </div>
+      ) : (
+        <div className="grid grid-cols-1 gap-6 lg:grid-cols-[1fr_300px]">
+          {/* Left: Diff */}
+          <div className="min-w-0">
+            <div className="flex items-center justify-between border-b border-border pb-3 mb-4">
+              <h2 className="text-lg font-semibold">Review: {activePhaseName}</h2>
+              <span className="text-xs text-muted-foreground">
+                {comments.filter((c) => !c.resolved).length} unresolved thread
+                {comments.filter((c) => !c.resolved).length !== 1 ? "s" : ""}
+              </span>
+            </div>
+            {files.length === 0 ? (
+              <div className="flex h-32 items-center justify-center text-muted-foreground">
+                No changes in this phase
+              </div>
+            ) : (
+              <DiffViewer
+                files={files}
+                comments={comments}
+                onAddComment={handleAddComment}
+                onResolveComment={handleResolveComment}
+                onUnresolveComment={handleUnresolveComment}
+              />
+            )}
+          </div>
+
+          {/* Right: Sidebar */}
+          <div className="w-full lg:w-[300px]">
+            <ReviewSidebar
+              title={`Phase: ${activePhaseName}`}
+              description={`Review changes from phase "${activePhaseName}" before merging into the initiative branch.`}
+              author="system"
+              status={status}
+              sourceBranch={diffQuery.data?.sourceBranch ?? ""}
+              targetBranch={diffQuery.data?.targetBranch ?? ""}
+              files={files}
+              comments={comments}
+              onApprove={handleApprove}
+              onRequestChanges={handleRequestChanges}
+              onFileClick={handleFileClick}
+            />
+          </div>
+        </div>
+      )}
    </div>
  );
 }
--- a/packages/web/src/components/ui/select.tsx
+++ b/packages/web/src/components/ui/select.tsx
@@ -0,0 +1,158 @@
+import * as React from "react"
+import * as SelectPrimitive from "@radix-ui/react-select"
+import { Check, ChevronDown, ChevronUp } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+const Select = SelectPrimitive.Root
+
+const SelectGroup = SelectPrimitive.Group
+
+const SelectValue = SelectPrimitive.Value
+
+const SelectTrigger = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Trigger>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger>
+>(({ className, children, ...props }, ref) => (
+  <SelectPrimitive.Trigger
+    ref={ref}
+    className={cn(
+      "flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background data-[placeholder]:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
+      className
+    )}
+    {...props}
+  >
+    {children}
+    <SelectPrimitive.Icon asChild>
+      <ChevronDown className="h-4 w-4 opacity-50" />
+    </SelectPrimitive.Icon>
+  </SelectPrimitive.Trigger>
+))
+SelectTrigger.displayName = SelectPrimitive.Trigger.displayName
+
+const SelectScrollUpButton = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.ScrollUpButton>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollUpButton>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.ScrollUpButton
+    ref={ref}
+    className={cn(
+      "flex cursor-default items-center justify-center py-1",
+      className
+    )}
+    {...props}
+  >
+    <ChevronUp className="h-4 w-4" />
+  </SelectPrimitive.ScrollUpButton>
+))
+SelectScrollUpButton.displayName = SelectPrimitive.ScrollUpButton.displayName
+
+const SelectScrollDownButton = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.ScrollDownButton>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollDownButton>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.ScrollDownButton
+    ref={ref}
+    className={cn(
+      "flex cursor-default items-center justify-center py-1",
+      className
+    )}
+    {...props}
+  >
+    <ChevronDown className="h-4 w-4" />
+  </SelectPrimitive.ScrollDownButton>
+))
+SelectScrollDownButton.displayName =
+  SelectPrimitive.ScrollDownButton.displayName
+
+const SelectContent = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Content>
+>(({ className, children, position = "popper", ...props }, ref) => (
+  <SelectPrimitive.Portal>
+    <SelectPrimitive.Content
+      ref={ref}
+      className={cn(
+        "relative z-50 max-h-[--radix-select-content-available-height] min-w-[8rem] overflow-y-auto overflow-x-hidden rounded-md border bg-popover text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-select-content-transform-origin]",
+        position === "popper" &&
+          "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
+        className
+      )}
+      position={position}
+      {...props}
+    >
+      <SelectScrollUpButton />
+      <SelectPrimitive.Viewport
+        className={cn(
+          "p-1",
+          position === "popper" &&
+            "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)]"
+        )}
+      >
+        {children}
+      </SelectPrimitive.Viewport>
+      <SelectScrollDownButton />
+    </SelectPrimitive.Content>
+  </SelectPrimitive.Portal>
+))
+SelectContent.displayName = SelectPrimitive.Content.displayName
+
+const SelectLabel = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Label>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.Label
+    ref={ref}
+    className={cn("py-1.5 pl-8 pr-2 text-sm font-semibold", className)}
+    {...props}
+  />
+))
+SelectLabel.displayName = SelectPrimitive.Label.displayName
+
+const SelectItem = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Item>
+>(({ className, children, ...props }, ref) => (
+  <SelectPrimitive.Item
+    ref={ref}
+    className={cn(
+      "relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <SelectPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </SelectPrimitive.ItemIndicator>
+    </span>
+
+    <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+  </SelectPrimitive.Item>
+))
+SelectItem.displayName = SelectPrimitive.Item.displayName
+
+const SelectSeparator = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.Separator
+    ref={ref}
+    className={cn("-mx-1 my-1 h-px bg-muted", className)}
+    {...props}
+  />
+))
+SelectSeparator.displayName = SelectPrimitive.Separator.displayName
+
+export {
+  Select,
+  SelectGroup,
+  SelectValue,
+  SelectTrigger,
+  SelectContent,
+  SelectLabel,
+  SelectItem,
+  SelectSeparator,
+  SelectScrollUpButton,
+  SelectScrollDownButton,
+}
--- a/packages/web/src/hooks/useRefineAgent.ts
+++ b/packages/web/src/hooks/useRefineAgent.ts
@@ -1,6 +1,6 @@
 import { useCallback, useMemo, useRef } from 'react';
 import { trpc } from '@/lib/trpc';
-import type { PendingQuestions, Proposal } from '@codewalk-district/shared';
+import type { PendingQuestions, ChangeSet } from '@codewalk-district/shared';

 export type RefineAgentState = 'none' | 'running' | 'waiting' | 'completed' | 'crashed';

@@ -18,8 +18,8 @@ export interface UseRefineAgentResult {
  state: RefineAgentState;
  /** Questions from the agent (when state is 'waiting') */
  questions: PendingQuestions | null;
-  /** Proposal rows from the DB (when state is 'completed') */
-  proposals: Proposal[] | null;
+  /** Latest applied change set (when state is 'completed') */
+  changeSet: ChangeSet | null;
  /** Raw result message (when state is 'completed') */
  result: string | null;
  /** Mutation for spawning a new refine agent */
@@ -82,8 +82,8 @@ export function useRefineAgent(initiativeId: string): UseRefineAgentResult {
    { enabled: state === 'waiting' && !!agent },
  );

-  // Fetch proposals from DB when completed
-  const proposalsQuery = trpc.listProposals.useQuery(
+  // Fetch change sets from DB when completed
+  const changeSetsQuery = trpc.listChangeSets.useQuery(
    { agentId: agent?.id ?? '' },
    { enabled: state === 'completed' && !!agent },
  );
@@ -94,12 +94,11 @@ export function useRefineAgent(initiativeId: string): UseRefineAgentResult {
    { enabled: state === 'completed' && !!agent },
  );

-  // Filter to only pending proposals
-  const proposals = useMemo(() => {
-    if (!proposalsQuery.data || proposalsQuery.data.length === 0) return null;
-    const pending = proposalsQuery.data.filter((p) => p.status === 'pending');
-    return pending.length > 0 ? pending : null;
-  }, [proposalsQuery.data]);
+  // Get latest applied change set
+  const changeSet = useMemo(() => {
+    if (!changeSetsQuery.data || changeSetsQuery.data.length === 0) return null;
+    return changeSetsQuery.data.find((cs) => cs.status === 'applied') ?? null;
+  }, [changeSetsQuery.data]);

  const result = useMemo(() => {
    if (!resultQuery.data?.success || !resultQuery.data.message) return null;
@@ -182,9 +181,7 @@ export function useRefineAgent(initiativeId: string): UseRefineAgentResult {

      return { previousAgents };
    },
-    onSuccess: () => {
-      void utils.listProposals.invalidate();
-    },
+    onSuccess: () => {},
    onError: (err, variables, context) => {
      // Revert optimistic update
      if (context?.previousAgents) {
@@ -256,18 +253,18 @@ export function useRefineAgent(initiativeId: string): UseRefineAgentResult {

  const refresh = useCallback(() => {
    void utils.getActiveRefineAgent.invalidate({ initiativeId });
-    void utils.listProposals.invalidate();
+    void utils.listChangeSets.invalidate();
  }, [utils, initiativeId]);

  const isLoading = agentQuery.isLoading ||
    (state === 'waiting' && questionsQuery.isLoading) ||
-    (state === 'completed' && (resultQuery.isLoading || proposalsQuery.isLoading));
+    (state === 'completed' && (resultQuery.isLoading || changeSetsQuery.isLoading));

  return {
    agent,
    state,
    questions: questionsQuery.data ?? null,
-    proposals,
+    changeSet,
    result,
    spawn,
    resume,
--- a/packages/web/src/lib/invalidation.ts
+++ b/packages/web/src/lib/invalidation.ts
@@ -35,7 +35,7 @@ const INVALIDATION_MAP: Partial<Record<MutationName, QueryName[]>> = {
  // --- Agents ---
  stopAgent: ["listAgents", "listWaitingAgents", "listMessages"],
  deleteAgent: ["listAgents"],
-  dismissAgent: ["listAgents", "listProposals"],
+  dismissAgent: ["listAgents"],
  resumeAgent: ["listAgents", "listWaitingAgents", "listMessages"],
  respondToMessage: ["listWaitingAgents", "listMessages"],

@@ -66,10 +66,8 @@ const INVALIDATION_MAP: Partial<Record<MutationName, QueryName[]>> = {
  queueTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks"],
  approveTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks", "listPendingApprovals"],

-  // --- Proposals ---
-  acceptProposal: ["listProposals", "listPages", "getPage", "listAgents", "listPhases", "listTasks"],
-  acceptAllProposals: ["listProposals", "listPages", "getPage", "listAgents", "listPhases", "listTasks"],
-  dismissAllProposals: ["listProposals", "listAgents"],
+  // --- Change Sets ---
+  revertChangeSet: ["listPhases", "listPhaseTasks", "listInitiativeTasks", "listPages", "getPage", "listChangeSets", "getRootPage"],

  // --- Pages ---
  updatePage: ["listPages", "getPage", "getRootPage"],
--- a/packages/web/src/routes/initiatives/$id.tsx
+++ b/packages/web/src/routes/initiatives/$id.tsx
@@ -89,6 +89,8 @@ function InitiativeDetailPage() {
    id: initiative.id,
    name: initiative.name,
    status: initiative.status,
+    executionMode: (initiative as any).executionMode as string | undefined,
+    mergeTarget: (initiative as any).mergeTarget as string | null | undefined,
  };

  const projects = (initiative as { projects?: Array<{ id: string; name: string; url: string }> }).projects;
@@ -135,6 +137,7 @@ function InitiativeDetailPage() {
          phasesLoading={phasesQuery.isLoading}
          phasesLoaded={phasesQuery.isSuccess}
          dependencyEdges={depsQuery.data ?? []}
+          mergeTarget={serializedInitiative.mergeTarget}
        />
      )}
      {activeTab === "execution" && (
--- a/src/agent/completion-detection.test.ts
+++ b/src/agent/completion-detection.test.ts
@@ -9,13 +9,11 @@ import { tmpdir } from 'node:os';
 import { rmSync } from 'node:fs';
 import { OutputHandler } from './output-handler.js';
 import type { AgentRepository } from '../db/repositories/agent-repository.js';
-import type { ProposalRepository } from '../db/repositories/proposal-repository.js';

 describe('Completion Detection Fix', () => {
  let tempDir: string;
  let outputHandler: OutputHandler;
  let mockAgentRepo: AgentRepository;
-  let mockProposalRepo: ProposalRepository;

  beforeEach(async () => {
    tempDir = await mkdtemp(join(tmpdir(), 'completion-test-'));
@@ -26,11 +24,7 @@ describe('Completion Detection Fix', () => {
      findById: vi.fn().mockResolvedValue({ id: 'test-agent', mode: 'refine' }),
    } as any;

-    mockProposalRepo = {
-      create: vi.fn(),
-    } as any;
-
-    outputHandler = new OutputHandler(mockAgentRepo, undefined, mockProposalRepo);
+    outputHandler = new OutputHandler(mockAgentRepo);
  });

  afterEach(() => {
--- a/src/agent/file-io.test.ts
+++ b/src/agent/file-io.test.ts
@@ -50,6 +50,7 @@ describe('writeInputFiles', () => {
      status: 'active',
      mergeRequiresApproval: true,
      mergeTarget: 'main',
+      executionMode: 'review_per_phase',
      createdAt: new Date('2026-01-01'),
      updatedAt: new Date('2026-01-02'),
    };
--- a/src/agent/manager.ts
+++ b/src/agent/manager.ts
@@ -21,7 +21,10 @@ import type {
 import type { AgentRepository } from '../db/repositories/agent-repository.js';
 import type { AccountRepository } from '../db/repositories/account-repository.js';
 import type { ProjectRepository } from '../db/repositories/project-repository.js';
-import type { ProposalRepository } from '../db/repositories/proposal-repository.js';
+import type { ChangeSetRepository } from '../db/repositories/change-set-repository.js';
+import type { PhaseRepository } from '../db/repositories/phase-repository.js';
+import type { TaskRepository } from '../db/repositories/task-repository.js';
+import type { PageRepository } from '../db/repositories/page-repository.js';
 import type { LogChunkRepository } from '../db/repositories/log-chunk-repository.js';
 import { generateUniqueAlias } from './alias.js';
 import type {
@@ -72,14 +75,17 @@ export class MultiProviderAgentManager implements AgentManager {
    private accountRepository?: AccountRepository,
    private eventBus?: EventBus,
    private credentialManager?: AccountCredentialManager,
-    private proposalRepository?: ProposalRepository,
+    private changeSetRepository?: ChangeSetRepository,
+    private phaseRepository?: PhaseRepository,
+    private taskRepository?: TaskRepository,
+    private pageRepository?: PageRepository,
    private logChunkRepository?: LogChunkRepository,
    private debug: boolean = false,
  ) {
    this.signalManager = new FileSystemSignalManager();
    this.processManager = new ProcessManager(workspaceRoot, projectRepository, eventBus);
    this.credentialHandler = new CredentialHandler(workspaceRoot, accountRepository, credentialManager);
-    this.outputHandler = new OutputHandler(repository, eventBus, proposalRepository, this.signalManager);
+    this.outputHandler = new OutputHandler(repository, eventBus, changeSetRepository, phaseRepository, taskRepository, pageRepository, this.signalManager);
    this.cleanupManager = new CleanupManager(workspaceRoot, repository, projectRepository, eventBus, debug, this.signalManager);
    this.lifecycleController = createLifecycleController({
      repository,
@@ -164,9 +170,9 @@ export class MultiProviderAgentManager implements AgentManager {
   * Used by both legacy spawn() and new lifecycle-managed spawn.
   */
  private async spawnInternal(options: SpawnAgentOptions): Promise<AgentInfo> {
-    const { taskId, cwd, mode = 'execute', provider: providerName = 'claude', initiativeId } = options;
+    const { taskId, cwd, mode = 'execute', provider: providerName = 'claude', initiativeId, baseBranch, branchName } = options;
    let { prompt } = options;
-    log.info({ taskId, provider: providerName, initiativeId, mode }, 'spawn requested');
+    log.info({ taskId, provider: providerName, initiativeId, mode, baseBranch, branchName }, 'spawn requested');

    const provider = getProvider(providerName);
    if (!provider) {
@@ -215,8 +221,8 @@ export class MultiProviderAgentManager implements AgentManager {
    // 2. Create isolated worktrees
    let agentCwd: string;
    if (initiativeId) {
-      log.debug({ alias, initiativeId }, 'creating initiative-based worktrees');
-      agentCwd = await this.processManager.createProjectWorktrees(alias, initiativeId);
+      log.debug({ alias, initiativeId, baseBranch, branchName }, 'creating initiative-based worktrees');
+      agentCwd = await this.processManager.createProjectWorktrees(alias, initiativeId, baseBranch ?? 'main', branchName);

      // Log projects linked to the initiative
      const projects = await this.projectRepository.findProjectsByInitiativeId(initiativeId);
--- a/src/agent/output-handler.test.ts
+++ b/src/agent/output-handler.test.ts
@@ -8,7 +8,6 @@
 import { describe, it, expect, beforeEach, vi } from 'vitest';
 import { OutputHandler } from './output-handler.js';
 import type { AgentRepository } from '../db/repositories/agent-repository.js';
-import type { ProposalRepository } from '../db/repositories/proposal-repository.js';
 import type { EventBus, DomainEvent, AgentWaitingEvent } from '../events/types.js';
 import { getProvider } from './providers/registry.js';

@@ -44,19 +43,6 @@ function createMockAgentRepository() {
  };
 }

-function createMockProposalRepository() {
-  return {
-    createMany: vi.fn(),
-    findByAgentId: vi.fn(),
-    findByInitiativeId: vi.fn(),
-    findById: vi.fn(),
-    update: vi.fn(),
-    delete: vi.fn(),
-    create: vi.fn(),
-    findAll: vi.fn(),
-  };
-}
-
 // =============================================================================
 // Tests
 // =============================================================================
@@ -64,7 +50,6 @@ function createMockProposalRepository() {
 describe('OutputHandler', () => {
  let outputHandler: OutputHandler;
  let mockAgentRepo: ReturnType<typeof createMockAgentRepository>;
-  let mockProposalRepo: ReturnType<typeof createMockProposalRepository>;
  let eventBus: ReturnType<typeof createMockEventBus>;

  const mockAgent = {
@@ -78,13 +63,11 @@ describe('OutputHandler', () => {

  beforeEach(() => {
    mockAgentRepo = createMockAgentRepository();
-    mockProposalRepo = createMockProposalRepository();
    eventBus = createMockEventBus();

    outputHandler = new OutputHandler(
      mockAgentRepo as any,
      eventBus,
-      mockProposalRepo as any
    );

    // Setup default mock behavior
--- a/src/agent/output-handler.ts
+++ b/src/agent/output-handler.ts
@@ -10,7 +10,10 @@ import { readFile } from 'node:fs/promises';
 import { existsSync } from 'node:fs';
 import { join } from 'node:path';
 import type { AgentRepository } from '../db/repositories/agent-repository.js';
-import type { ProposalRepository, CreateProposalData } from '../db/repositories/proposal-repository.js';
+import type { ChangeSetRepository, CreateChangeSetEntryData } from '../db/repositories/change-set-repository.js';
+import type { PhaseRepository } from '../db/repositories/phase-repository.js';
+import type { TaskRepository } from '../db/repositories/task-repository.js';
+import type { PageRepository } from '../db/repositories/page-repository.js';
 import type {
  EventBus,
  AgentStoppedEvent,
@@ -36,6 +39,7 @@ import {
  readFrontmatterFile,
 } from './file-io.js';
 import { getProvider } from './providers/registry.js';
+import { markdownToTiptapJson } from './markdown-to-tiptap.js';
 import type { SignalManager } from './lifecycle/signal-manager.js';
 import { createModuleLogger } from '../logger/index.js';

@@ -83,7 +87,10 @@ export class OutputHandler {
  constructor(
    private repository: AgentRepository,
    private eventBus?: EventBus,
-    private proposalRepository?: ProposalRepository,
+    private changeSetRepository?: ChangeSetRepository,
+    private phaseRepository?: PhaseRepository,
+    private taskRepository?: TaskRepository,
+    private pageRepository?: PageRepository,
    private signalManager?: SignalManager,
  ) {}

@@ -404,6 +411,7 @@ export class OutputHandler {

  /**
   * Process output files from agent workdir after successful completion.
+   * Performs direct writes to entities and records change sets.
   */
  private async processOutputFiles(
    agentId: string,
@@ -414,27 +422,82 @@ export class OutputHandler {
    const agentWorkdir = getAgentWorkdir(agent.worktreeId);
    const summary = readSummary(agentWorkdir);
    const initiativeId = agent.initiativeId;
-    const canWriteProposals = this.proposalRepository && initiativeId;
+    const canWriteChangeSets = this.changeSetRepository && initiativeId;

    let resultMessage = summary?.body ?? 'Task completed';
    switch (mode) {
      case 'breakdown': {
        const phases = readPhaseFiles(agentWorkdir);
-        if (canWriteProposals && phases.length > 0) {
-          const proposalData: CreateProposalData[] = phases.map((p, i) => ({
-            agentId,
-            initiativeId,
-            targetType: 'phase' as const,
-            targetId: null,
-            title: p.title,
-            summary: null,
-            content: p.body || null,
-            metadata: JSON.stringify({ fileId: p.id, dependencies: p.dependencies }),
-            status: 'pending' as const,
-            sortOrder: i,
-          }));
-          await this.proposalRepository!.createMany(proposalData);
-          resultMessage = summary?.body ?? `${phases.length} phase proposals created`;
+        if (canWriteChangeSets && this.phaseRepository && phases.length > 0) {
+          const entries: CreateChangeSetEntryData[] = [];
+
+          // First pass: create phases
+          for (const [i, p] of phases.entries()) {
+            try {
+              const tiptapContent = p.body ? JSON.stringify(markdownToTiptapJson(p.body)) : undefined;
+              const created = await this.phaseRepository.create({
+                id: p.id ?? undefined,
+                initiativeId,
+                name: p.title,
+                content: tiptapContent,
+              });
+              entries.push({
+                entityType: 'phase',
+                entityId: created.id,
+                action: 'create',
+                newState: JSON.stringify(created),
+                sortOrder: i,
+              });
+              this.eventBus?.emit({
+                type: 'phase:started' as const,
+                timestamp: new Date(),
+                payload: { phaseId: created.id, initiativeId },
+              });
+            } catch (err) {
+              log.warn({ agentId, phase: p.title, err: err instanceof Error ? err.message : String(err) }, 'failed to create phase');
+            }
+          }
+
+          // Second pass: create phase dependencies
+          let depSortOrder = entries.length;
+          for (const p of phases) {
+            const phaseId = p.id;
+            if (!phaseId || !Array.isArray(p.dependencies)) continue;
+            for (const depFileId of p.dependencies) {
+              try {
+                await this.phaseRepository.createDependency(phaseId, depFileId);
+                entries.push({
+                  entityType: 'phase_dependency',
+                  entityId: `${phaseId}:${depFileId}`,
+                  action: 'create',
+                  newState: JSON.stringify({ phaseId, dependsOnPhaseId: depFileId }),
+                  sortOrder: depSortOrder++,
+                });
+              } catch (err) {
+                log.warn({ agentId, phaseId, depFileId, err: err instanceof Error ? err.message : String(err) }, 'failed to create phase dependency');
+              }
+            }
+          }
+
+          if (entries.length > 0) {
+            try {
+              const cs = await this.changeSetRepository!.createWithEntries({
+                agentId,
+                agentName: agent.name,
+                initiativeId,
+                mode: 'breakdown',
+                summary: summary?.body ?? `Created ${phases.length} phases`,
+              }, entries);
+              this.eventBus?.emit({
+                type: 'changeset:created' as const,
+                timestamp: new Date(),
+                payload: { changeSetId: cs.id, initiativeId, agentId, mode: 'breakdown', entryCount: entries.length },
+              });
+            } catch (err) {
+              log.warn({ agentId, err: err instanceof Error ? err.message : String(err) }, 'failed to record change set after successful writes');
+            }
+          }
+          resultMessage = summary?.body ?? `${phases.length} phases created`;
        } else {
          resultMessage = JSON.stringify({ summary: summary?.body, phases });
        }
@@ -442,32 +505,58 @@ export class OutputHandler {
      }
      case 'decompose': {
        const tasks = readTaskFiles(agentWorkdir);
-        if (canWriteProposals && tasks.length > 0) {
-          // Read phase info from input context if available
+        if (canWriteChangeSets && this.taskRepository && tasks.length > 0) {
          const phaseInput = readFrontmatterFile(join(agentWorkdir, '.cw', 'input', 'phase.md'));
          const phaseId = (phaseInput?.data?.id as string) ?? null;
+          const entries: CreateChangeSetEntryData[] = [];

-          const proposalData: CreateProposalData[] = tasks.map((t, i) => ({
-            agentId,
-            initiativeId,
-            targetType: 'task' as const,
-            targetId: null,
-            title: t.title,
-            summary: null,
-            content: t.body || null,
-            metadata: JSON.stringify({
-              fileId: t.id,
-              category: t.category,
-              type: t.type,
-              dependencies: t.dependencies,
-              parentTaskId: agent.taskId,
-              phaseId,
-            }),
-            status: 'pending' as const,
-            sortOrder: i,
-          }));
-          await this.proposalRepository!.createMany(proposalData);
-          resultMessage = summary?.body ?? `${tasks.length} task proposals created`;
+          for (const [i, t] of tasks.entries()) {
+            try {
+              const created = await this.taskRepository.create({
+                initiativeId,
+                phaseId,
+                parentTaskId: agent.taskId ?? null,
+                name: t.title,
+                description: t.body ?? undefined,
+                category: (t.category as any) ?? 'execute',
+                type: (t.type as any) ?? 'auto',
+              });
+              entries.push({
+                entityType: 'task',
+                entityId: created.id,
+                action: 'create',
+                newState: JSON.stringify(created),
+                sortOrder: i,
+              });
+              this.eventBus?.emit({
+                type: 'task:completed' as const,
+                timestamp: new Date(),
+                payload: { taskId: created.id, agentId, success: true, message: 'Task created by decompose' },
+              });
+            } catch (err) {
+              log.warn({ agentId, task: t.title, err: err instanceof Error ? err.message : String(err) }, 'failed to create task');
+            }
+          }
+
+          if (entries.length > 0) {
+            try {
+              const cs = await this.changeSetRepository!.createWithEntries({
+                agentId,
+                agentName: agent.name,
+                initiativeId,
+                mode: 'decompose',
+                summary: summary?.body ?? `Created ${tasks.length} tasks`,
+              }, entries);
+              this.eventBus?.emit({
+                type: 'changeset:created' as const,
+                timestamp: new Date(),
+                payload: { changeSetId: cs.id, initiativeId, agentId, mode: 'decompose', entryCount: entries.length },
+              });
+            } catch (err) {
+              log.warn({ agentId, err: err instanceof Error ? err.message : String(err) }, 'failed to record change set after successful writes');
+            }
+          }
+          resultMessage = summary?.body ?? `${tasks.length} tasks created`;
        } else {
          resultMessage = JSON.stringify({ summary: summary?.body, tasks });
        }
@@ -480,43 +569,63 @@ export class OutputHandler {
      }
      case 'refine': {
        const pages = readPageFiles(agentWorkdir);
-        if (canWriteProposals) {
-          if (pages.length > 0) {
-            // Create proposals for actual page changes
-            const proposalData: CreateProposalData[] = pages.map((p, i) => ({
-              agentId,
-              initiativeId,
-              targetType: 'page' as const,
-              targetId: p.pageId,
-              title: p.title,
-              summary: p.summary || null,
-              content: p.body || null,
-              metadata: null,
-              status: 'pending' as const,
-              sortOrder: i,
-            }));
-            await this.proposalRepository!.createMany(proposalData);
-            resultMessage = summary?.body ?? `${pages.length} page proposals created`;
-          } else {
-            // Create a synthetic completion proposal when no changes are proposed
-            // This ensures the dismiss flow always goes through proposals domain
-            const completionProposal: CreateProposalData = {
-              agentId,
-              initiativeId,
-              targetType: 'page' as const,
-              targetId: null,
-              title: 'Analysis Complete',
-              summary: 'Agent completed review with no changes proposed',
-              content: summary?.body || 'The agent has finished analyzing the content and determined no changes are needed.',
-              metadata: JSON.stringify({ synthetic: true, reason: 'no_changes' }),
-              status: 'pending' as const,
-              sortOrder: 0,
-            };
-            await this.proposalRepository!.createMany([completionProposal]);
-            resultMessage = summary?.body ?? 'Analysis completed with 1 completion notice';
+        if (canWriteChangeSets && this.pageRepository && pages.length > 0) {
+          const entries: CreateChangeSetEntryData[] = [];
+
+          for (const [i, p] of pages.entries()) {
+            try {
+              if (!p.pageId) continue;
+              const existing = await this.pageRepository.findById(p.pageId);
+              if (!existing) {
+                log.warn({ agentId, pageId: p.pageId }, 'page not found for refine update');
+                continue;
+              }
+              const previousState = JSON.stringify(existing);
+              const tiptapJson = markdownToTiptapJson(p.body || '');
+              await this.pageRepository.update(p.pageId, {
+                content: JSON.stringify(tiptapJson),
+                title: p.title,
+              });
+              const updated = await this.pageRepository.findById(p.pageId);
+              entries.push({
+                entityType: 'page',
+                entityId: p.pageId,
+                action: 'update',
+                previousState,
+                newState: JSON.stringify(updated),
+                sortOrder: i,
+              });
+              this.eventBus?.emit({
+                type: 'page:updated' as const,
+                timestamp: new Date(),
+                payload: { pageId: p.pageId, initiativeId, title: p.title },
+              });
+            } catch (err) {
+              log.warn({ agentId, pageId: p.pageId, err: err instanceof Error ? err.message : String(err) }, 'failed to update page');
+            }
          }
+
+          if (entries.length > 0) {
+            try {
+              const cs = await this.changeSetRepository!.createWithEntries({
+                agentId,
+                agentName: agent.name,
+                initiativeId,
+                mode: 'refine',
+                summary: summary?.body ?? `Updated ${entries.length} pages`,
+              }, entries);
+              this.eventBus?.emit({
+                type: 'changeset:created' as const,
+                timestamp: new Date(),
+                payload: { changeSetId: cs.id, initiativeId, agentId, mode: 'refine', entryCount: entries.length },
+              });
+            } catch (err) {
+              log.warn({ agentId, err: err instanceof Error ? err.message : String(err) }, 'failed to record change set after successful writes');
+            }
+          }
+          resultMessage = summary?.body ?? `${entries.length} pages updated`;
        } else {
-          resultMessage = JSON.stringify({ summary: summary?.body, proposals: pages });
+          resultMessage = JSON.stringify({ summary: summary?.body, pages });
        }
        break;
      }
--- a/src/agent/process-manager.ts
+++ b/src/agent/process-manager.ts
@@ -55,6 +55,7 @@ export class ProcessManager {
    alias: string,
    initiativeId: string,
    baseBranch: string = 'main',
+    branchName?: string,
  ): Promise<string> {
    const projects = await this.projectRepository.findProjectsByInitiativeId(initiativeId);
    const agentWorkdir = this.getAgentWorkdir(alias);
@@ -70,7 +71,7 @@ export class ProcessManager {
    for (const project of projects) {
      const clonePath = await ensureProjectClone(project, this.workspaceRoot);
      const worktreeManager = new SimpleGitWorktreeManager(clonePath, undefined, agentWorkdir);
-      const worktree = await worktreeManager.create(project.name, `agent/${alias}`, baseBranch);
+      const worktree = await worktreeManager.create(project.name, branchName ?? `agent/${alias}`, baseBranch);
      const worktreePath = worktree.path;
      const pathExists = existsSync(worktreePath);

--- a/src/agent/types.ts
+++ b/src/agent/types.ts
@@ -45,6 +45,12 @@ export interface SpawnAgentOptions {
  provider?: string;
  /** Initiative ID — when set, worktrees are created for all linked projects */
  initiativeId?: string;
+  /** Phase ID — used by dispatch for branch-aware spawning */
+  phaseId?: string;
+  /** Base branch for worktree creation (defaults to 'main') */
+  baseBranch?: string;
+  /** Explicit branch name for worktree (overrides 'agent/<alias>') */
+  branchName?: string;
  /** Context data to write as input files in agent workdir */
  inputContext?: AgentInputContext;
 }
--- a/src/container.ts
+++ b/src/container.ts
@@ -17,7 +17,7 @@ import {
  DrizzlePageRepository,
  DrizzleProjectRepository,
  DrizzleAccountRepository,
-  DrizzleProposalRepository,
+  DrizzleChangeSetRepository,
  DrizzleLogChunkRepository,
 } from './db/index.js';
 import type { InitiativeRepository } from './db/repositories/initiative-repository.js';
@@ -28,7 +28,7 @@ import type { AgentRepository } from './db/repositories/agent-repository.js';
 import type { PageRepository } from './db/repositories/page-repository.js';
 import type { ProjectRepository } from './db/repositories/project-repository.js';
 import type { AccountRepository } from './db/repositories/account-repository.js';
-import type { ProposalRepository } from './db/repositories/proposal-repository.js';
+import type { ChangeSetRepository } from './db/repositories/change-set-repository.js';
 import type { LogChunkRepository } from './db/repositories/log-chunk-repository.js';
 import type { EventBus } from './events/index.js';
 import { createEventBus } from './events/index.js';
@@ -40,6 +40,10 @@ import type { AccountCredentialManager } from './agent/credentials/types.js';
 import { DefaultDispatchManager } from './dispatch/manager.js';
 import { DefaultPhaseDispatchManager } from './dispatch/phase-manager.js';
 import type { DispatchManager, PhaseDispatchManager } from './dispatch/types.js';
+import { SimpleGitBranchManager } from './git/simple-git-branch-manager.js';
+import type { BranchManager } from './git/branch-manager.js';
+import { ExecutionOrchestrator } from './execution/orchestrator.js';
+import { DefaultConflictResolutionService } from './coordination/conflict-resolution-service.js';
 import { findWorkspaceRoot } from './config/index.js';
 import { createModuleLogger } from './logger/index.js';
 import type { ServerContextDeps } from './server/index.js';
@@ -60,7 +64,7 @@ export interface Repositories {
  pageRepository: PageRepository;
  projectRepository: ProjectRepository;
  accountRepository: AccountRepository;
-  proposalRepository: ProposalRepository;
+  changeSetRepository: ChangeSetRepository;
  logChunkRepository: LogChunkRepository;
 }

@@ -78,7 +82,7 @@ export function createRepositories(db: DrizzleDatabase): Repositories {
    pageRepository: new DrizzlePageRepository(db),
    projectRepository: new DrizzleProjectRepository(db),
    accountRepository: new DrizzleAccountRepository(db),
-    proposalRepository: new DrizzleProposalRepository(db),
+    changeSetRepository: new DrizzleChangeSetRepository(db),
    logChunkRepository: new DrizzleLogChunkRepository(db),
  };
 }
@@ -100,6 +104,8 @@ export interface Container extends Repositories {
  agentManager: MultiProviderAgentManager;
  dispatchManager: DispatchManager;
  phaseDispatchManager: PhaseDispatchManager;
+  branchManager: BranchManager;
+  executionOrchestrator: ExecutionOrchestrator;

  /** Extract the subset of deps that CoordinationServer needs. */
  toContextDeps(): ServerContextDeps;
@@ -153,7 +159,10 @@ export async function createContainer(options?: ContainerOptions): Promise<Conta
    repos.accountRepository,
    eventBus,
    credentialManager,
-    repos.proposalRepository,
+    repos.changeSetRepository,
+    repos.phaseRepository,
+    repos.taskRepository,
+    repos.pageRepository,
    repos.logChunkRepository,
    options?.debug ?? false,
  );
@@ -163,6 +172,10 @@ export async function createContainer(options?: ContainerOptions): Promise<Conta
  await agentManager.reconcileAfterRestart();
  log.info('agent reconciliation complete');

+  // Branch manager
+  const branchManager = new SimpleGitBranchManager();
+  log.info('branch manager created');
+
  // Dispatch managers
  const dispatchManager = new DefaultDispatchManager(
    repos.taskRepository,
@@ -170,15 +183,43 @@ export async function createContainer(options?: ContainerOptions): Promise<Conta
    agentManager,
    eventBus,
    repos.initiativeRepository,
+    repos.phaseRepository,
  );
  const phaseDispatchManager = new DefaultPhaseDispatchManager(
    repos.phaseRepository,
    repos.taskRepository,
    dispatchManager,
    eventBus,
+    repos.initiativeRepository,
+    repos.projectRepository,
+    branchManager,
+    workspaceRoot,
  );
  log.info('dispatch managers created');

+  // Conflict resolution service (for orchestrator)
+  const conflictResolutionService = new DefaultConflictResolutionService(
+    repos.taskRepository,
+    repos.agentRepository,
+    repos.messageRepository,
+    eventBus,
+  );
+
+  // Execution orchestrator
+  const executionOrchestrator = new ExecutionOrchestrator(
+    branchManager,
+    repos.phaseRepository,
+    repos.taskRepository,
+    repos.initiativeRepository,
+    repos.projectRepository,
+    phaseDispatchManager,
+    conflictResolutionService,
+    eventBus,
+    workspaceRoot,
+  );
+  executionOrchestrator.start();
+  log.info('execution orchestrator started');
+
  return {
    db,
    eventBus,
@@ -189,6 +230,8 @@ export async function createContainer(options?: ContainerOptions): Promise<Conta
    agentManager,
    dispatchManager,
    phaseDispatchManager,
+    branchManager,
+    executionOrchestrator,
    ...repos,

    toContextDeps(): ServerContextDeps {
@@ -197,6 +240,8 @@ export async function createContainer(options?: ContainerOptions): Promise<Conta
        credentialManager,
        dispatchManager,
        phaseDispatchManager,
+        branchManager,
+        executionOrchestrator,
        workspaceRoot,
        ...repos,
      };
--- a/src/coordination/conflict-resolution-service.ts
+++ b/src/coordination/conflict-resolution-service.ts
@@ -23,14 +23,23 @@ import type { MessageRepository } from '../db/repositories/message-repository.js
 * Service interface for handling merge conflicts.
 * This is the PORT - implementations are ADAPTERS.
 */
+/**
+ * Branch context for merge conflicts from the branch hierarchy.
+ */
+export interface MergeContext {
+  sourceBranch: string;
+  targetBranch: string;
+}
+
 export interface ConflictResolutionService {
  /**
   * Handle a merge conflict by creating resolution task and notifying agent.
   *
   * @param taskId - ID of the task that conflicted
   * @param conflicts - List of conflicting file paths
+   * @param mergeContext - Optional branch context for branch hierarchy merges
   */
-  handleConflict(taskId: string, conflicts: string[]): Promise<void>;
+  handleConflict(taskId: string, conflicts: string[], mergeContext?: MergeContext): Promise<void>;
 }

 // =============================================================================
@@ -55,7 +64,7 @@ export class DefaultConflictResolutionService implements ConflictResolutionServi
   * Handle a merge conflict.
   * Creates a conflict-resolution task and notifies the agent via message.
   */
-  async handleConflict(taskId: string, conflicts: string[]): Promise<void> {
+  async handleConflict(taskId: string, conflicts: string[], mergeContext?: MergeContext): Promise<void> {
    // Get original task for context
    const originalTask = await this.taskRepository.findById(taskId);
    if (!originalTask) {
@@ -69,15 +78,28 @@ export class DefaultConflictResolutionService implements ConflictResolutionServi
    }

    // Build conflict description
-    const conflictDescription = [
+    const descriptionLines = [
      'Merge conflicts detected. Resolve conflicts in the following files:',
      '',
      ...conflicts.map((f) => `- ${f}`),
      '',
      `Original task: ${originalTask.name}`,
      '',
-      'Instructions: Resolve merge conflicts in the listed files, then mark task complete.',
-    ].join('\n');
+    ];
+
+    if (mergeContext) {
+      descriptionLines.push(
+        `Resolve merge conflicts between branch "${mergeContext.sourceBranch}" and "${mergeContext.targetBranch}".`,
+        `Run: git merge ${mergeContext.sourceBranch} --no-edit`,
+        'Resolve all conflicts, then: git add . && git commit',
+      );
+    } else {
+      descriptionLines.push(
+        'Instructions: Resolve merge conflicts in the listed files, then mark task complete.',
+      );
+    }
+
+    const conflictDescription = descriptionLines.join('\n');

    // Create new conflict-resolution task
    const conflictTask = await this.taskRepository.create({
@@ -86,8 +108,9 @@ export class DefaultConflictResolutionService implements ConflictResolutionServi
      initiativeId: originalTask.initiativeId,
      name: `Resolve conflicts: ${originalTask.name}`,
      description: conflictDescription,
+      category: mergeContext ? 'merge' : 'execute',
      type: 'auto',
-      priority: 'high', // Conflicts should be resolved quickly
+      priority: 'high',
      status: 'pending',
      order: originalTask.order + 1,
    });
--- a/src/db/repositories/change-set-repository.ts
+++ b/src/db/repositories/change-set-repository.ts
@@ -0,0 +1,36 @@
+/**
+ * Change Set Repository Port Interface
+ *
+ * Port for ChangeSet aggregate operations.
+ * Implementations (Drizzle, etc.) are adapters.
+ */
+
+import type { ChangeSet, ChangeSetEntry } from '../schema.js';
+
+export type CreateChangeSetData = {
+  agentId: string | null;
+  agentName: string;
+  initiativeId: string;
+  mode: 'breakdown' | 'decompose' | 'refine';
+  summary?: string | null;
+};
+
+export type CreateChangeSetEntryData = {
+  entityType: 'page' | 'phase' | 'task' | 'phase_dependency';
+  entityId: string;
+  action: 'create' | 'update' | 'delete';
+  previousState?: string | null;
+  newState?: string | null;
+  sortOrder?: number;
+};
+
+export type ChangeSetWithEntries = ChangeSet & { entries: ChangeSetEntry[] };
+
+export interface ChangeSetRepository {
+  createWithEntries(data: CreateChangeSetData, entries: CreateChangeSetEntryData[]): Promise<ChangeSet>;
+  findById(id: string): Promise<ChangeSet | null>;
+  findByIdWithEntries(id: string): Promise<ChangeSetWithEntries | null>;
+  findByInitiativeId(initiativeId: string): Promise<ChangeSet[]>;
+  findByAgentId(agentId: string): Promise<ChangeSet[]>;
+  markReverted(id: string): Promise<ChangeSet>;
+}
--- a/src/db/repositories/drizzle/change-set.ts
+++ b/src/db/repositories/drizzle/change-set.ts
@@ -0,0 +1,110 @@
+/**
+ * Drizzle Change Set Repository Adapter
+ *
+ * Implements ChangeSetRepository interface using Drizzle ORM.
+ */
+
+import { eq, desc, asc } from 'drizzle-orm';
+import { nanoid } from 'nanoid';
+import type { DrizzleDatabase } from '../../index.js';
+import { changeSets, changeSetEntries, type ChangeSet } from '../../schema.js';
+import type {
+  ChangeSetRepository,
+  CreateChangeSetData,
+  CreateChangeSetEntryData,
+  ChangeSetWithEntries,
+} from '../change-set-repository.js';
+
+export class DrizzleChangeSetRepository implements ChangeSetRepository {
+  constructor(private db: DrizzleDatabase) {}
+
+  async createWithEntries(data: CreateChangeSetData, entries: CreateChangeSetEntryData[]): Promise<ChangeSet> {
+    const id = nanoid();
+    const now = new Date();
+
+    // Use transaction for atomicity
+    return this.db.transaction(async (tx) => {
+      const [created] = await tx.insert(changeSets).values({
+        id,
+        agentId: data.agentId,
+        agentName: data.agentName,
+        initiativeId: data.initiativeId,
+        mode: data.mode,
+        summary: data.summary ?? null,
+        status: 'applied',
+        createdAt: now,
+      }).returning();
+
+      if (entries.length > 0) {
+        const entryRows = entries.map((e, i) => ({
+          id: nanoid(),
+          changeSetId: id,
+          entityType: e.entityType,
+          entityId: e.entityId,
+          action: e.action,
+          previousState: e.previousState ?? null,
+          newState: e.newState ?? null,
+          sortOrder: e.sortOrder ?? i,
+          createdAt: now,
+        }));
+
+        await tx.insert(changeSetEntries).values(entryRows);
+      }
+
+      return created;
+    });
+  }
+
+  async findById(id: string): Promise<ChangeSet | null> {
+    const result = await this.db
+      .select()
+      .from(changeSets)
+      .where(eq(changeSets.id, id))
+      .limit(1);
+
+    return result[0] ?? null;
+  }
+
+  async findByIdWithEntries(id: string): Promise<ChangeSetWithEntries | null> {
+    const cs = await this.findById(id);
+    if (!cs) return null;
+
+    const entries = await this.db
+      .select()
+      .from(changeSetEntries)
+      .where(eq(changeSetEntries.changeSetId, id))
+      .orderBy(asc(changeSetEntries.sortOrder));
+
+    return { ...cs, entries };
+  }
+
+  async findByInitiativeId(initiativeId: string): Promise<ChangeSet[]> {
+    return this.db
+      .select()
+      .from(changeSets)
+      .where(eq(changeSets.initiativeId, initiativeId))
+      .orderBy(desc(changeSets.createdAt));
+  }
+
+  async findByAgentId(agentId: string): Promise<ChangeSet[]> {
+    return this.db
+      .select()
+      .from(changeSets)
+      .where(eq(changeSets.agentId, agentId))
+      .orderBy(desc(changeSets.createdAt));
+  }
+
+  async markReverted(id: string): Promise<ChangeSet> {
+    const [updated] = await this.db
+      .update(changeSets)
+      .set({ status: 'reverted', revertedAt: new Date() })
+      .where(eq(changeSets.id, id))
+      .returning();
+
+    if (!updated) {
+      throw new Error(`ChangeSet not found: ${id}`);
+    }
+
+    return updated;
+  }
+}
--- a/src/db/repositories/drizzle/index.ts
+++ b/src/db/repositories/drizzle/index.ts
@@ -13,5 +13,5 @@ export { DrizzleMessageRepository } from './message.js';
 export { DrizzlePageRepository } from './page.js';
 export { DrizzleProjectRepository } from './project.js';
 export { DrizzleAccountRepository } from './account.js';
-export { DrizzleProposalRepository } from './proposal.js';
+export { DrizzleChangeSetRepository } from './change-set.js';
 export { DrizzleLogChunkRepository } from './log-chunk.js';
--- a/src/db/repositories/drizzle/proposal.ts
+++ b/src/db/repositories/drizzle/proposal.ts
@@ -1,133 +0,0 @@
-/**
- * Drizzle Proposal Repository Adapter
- *
- * Implements ProposalRepository interface using Drizzle ORM.
- */
-
-import { eq, and, count, asc } from 'drizzle-orm';
-import { nanoid } from 'nanoid';
-import type { DrizzleDatabase } from '../../index.js';
-import { proposals, type Proposal } from '../../schema.js';
-import type {
-  ProposalRepository,
-  CreateProposalData,
-  UpdateProposalData,
-} from '../proposal-repository.js';
-
-export class DrizzleProposalRepository implements ProposalRepository {
-  constructor(private db: DrizzleDatabase) {}
-
-  async create(data: CreateProposalData): Promise<Proposal> {
-    const id = nanoid();
-    const now = new Date();
-
-    const [created] = await this.db.insert(proposals).values({
-      id,
-      ...data,
-      createdAt: now,
-      updatedAt: now,
-    }).returning();
-
-    return created;
-  }
-
-  async createMany(data: CreateProposalData[]): Promise<Proposal[]> {
-    if (data.length === 0) return [];
-
-    const now = new Date();
-    const rows = data.map((d) => ({
-      id: nanoid(),
-      ...d,
-      createdAt: now,
-      updatedAt: now,
-    }));
-
-    return this.db.insert(proposals).values(rows).returning();
-  }
-
-  async findById(id: string): Promise<Proposal | null> {
-    const result = await this.db
-      .select()
-      .from(proposals)
-      .where(eq(proposals.id, id))
-      .limit(1);
-
-    return result[0] ?? null;
-  }
-
-  async findByAgentId(agentId: string): Promise<Proposal[]> {
-    return this.db
-      .select()
-      .from(proposals)
-      .where(eq(proposals.agentId, agentId))
-      .orderBy(asc(proposals.sortOrder));
-  }
-
-  async findByInitiativeId(initiativeId: string): Promise<Proposal[]> {
-    return this.db
-      .select()
-      .from(proposals)
-      .where(eq(proposals.initiativeId, initiativeId))
-      .orderBy(asc(proposals.sortOrder));
-  }
-
-  async findByAgentIdAndStatus(agentId: string, status: string): Promise<Proposal[]> {
-    return this.db
-      .select()
-      .from(proposals)
-      .where(
-        and(
-          eq(proposals.agentId, agentId),
-          eq(proposals.status, status as 'pending' | 'accepted' | 'dismissed'),
-        ),
-      )
-      .orderBy(asc(proposals.sortOrder));
-  }
-
-  async update(id: string, data: UpdateProposalData): Promise<Proposal> {
-    const [updated] = await this.db
-      .update(proposals)
-      .set({ ...data, updatedAt: new Date() })
-      .where(eq(proposals.id, id))
-      .returning();
-
-    if (!updated) {
-      throw new Error(`Proposal not found: ${id}`);
-    }
-
-    return updated;
-  }
-
-  async updateManyByAgentId(agentId: string, data: UpdateProposalData): Promise<void> {
-    await this.db
-      .update(proposals)
-      .set({ ...data, updatedAt: new Date() })
-      .where(eq(proposals.agentId, agentId));
-  }
-
-  async updateManyByAgentIdAndStatus(agentId: string, currentStatus: string, data: UpdateProposalData): Promise<void> {
-    await this.db
-      .update(proposals)
-      .set({ ...data, updatedAt: new Date() })
-      .where(
-        and(
-          eq(proposals.agentId, agentId),
-          eq(proposals.status, currentStatus as 'pending' | 'accepted' | 'dismissed'),
-        ),
-      );
-  }
-
-  async countByAgentIdAndStatus(agentId: string, status: string): Promise<number> {
-    const result = await this.db
-      .select({ count: count() })
-      .from(proposals)
-      .where(
-        and(
-          eq(proposals.agentId, agentId),
-          eq(proposals.status, status as 'pending' | 'accepted' | 'dismissed'),
-        ),
-      );
-
-    return result[0]?.count ?? 0;
-  }
-}
--- a/src/db/repositories/index.ts
+++ b/src/db/repositories/index.ts
@@ -58,10 +58,11 @@ export type {
 } from './account-repository.js';

 export type {
-  ProposalRepository,
-  CreateProposalData,
-  UpdateProposalData,
-} from './proposal-repository.js';
+  ChangeSetRepository,
+  CreateChangeSetData,
+  CreateChangeSetEntryData,
+  ChangeSetWithEntries,
+} from './change-set-repository.js';

 export type {
  LogChunkRepository,
--- a/src/db/repositories/proposal-repository.ts
+++ b/src/db/repositories/proposal-repository.ts
@@ -1,35 +0,0 @@
-/**
- * Proposal Repository Port Interface
- *
- * Port for Proposal aggregate operations.
- * Implementations (Drizzle, etc.) are adapters.
- */
-
-import type { Proposal, NewProposal } from '../schema.js';
-
-/**
- * Data for creating a new proposal.
- * Omits system-managed fields (id, createdAt, updatedAt).
- */
-export type CreateProposalData = Omit<NewProposal, 'id' | 'createdAt' | 'updatedAt'>;
-
-/**
- * Data for updating a proposal.
- */
-export type UpdateProposalData = Partial<Pick<NewProposal, 'status'>>;
-
-/**
- * Proposal Repository Port
- */
-export interface ProposalRepository {
-  create(data: CreateProposalData): Promise<Proposal>;
-  createMany(data: CreateProposalData[]): Promise<Proposal[]>;
-  findById(id: string): Promise<Proposal | null>;
-  findByAgentId(agentId: string): Promise<Proposal[]>;
-  findByInitiativeId(initiativeId: string): Promise<Proposal[]>;
-  findByAgentIdAndStatus(agentId: string, status: string): Promise<Proposal[]>;
-  update(id: string, data: UpdateProposalData): Promise<Proposal>;
-  updateManyByAgentId(agentId: string, data: UpdateProposalData): Promise<void>;
-  updateManyByAgentIdAndStatus(agentId: string, currentStatus: string, data: UpdateProposalData): Promise<void>;
-  countByAgentIdAndStatus(agentId: string, status: string): Promise<number>;
-}
--- a/src/db/schema.ts
+++ b/src/db/schema.ts
@@ -26,6 +26,9 @@ export const initiatives = sqliteTable('initiatives', {
    .notNull()
    .default(true),
  mergeTarget: text('merge_target'), // Target branch for merges (e.g., 'feature/xyz')
+  executionMode: text('execution_mode', { enum: ['yolo', 'review_per_phase'] })
+    .notNull()
+    .default('review_per_phase'),
  createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
  updatedAt: integer('updated_at', { mode: 'timestamp' }).notNull(),
 });
@@ -35,7 +38,7 @@ export const initiativesRelations = relations(initiatives, ({ many }) => ({
  pages: many(pages),
  initiativeProjects: many(initiativeProjects),
  tasks: many(tasks),
-  proposals: many(proposals),
+  changeSets: many(changeSets),
 }));

 export type Initiative = InferSelectModel<typeof initiatives>;
@@ -52,7 +55,7 @@ export const phases = sqliteTable('phases', {
    .references(() => initiatives.id, { onDelete: 'cascade' }),
  name: text('name').notNull(),
  content: text('content'),
-  status: text('status', { enum: ['pending', 'approved', 'in_progress', 'completed', 'blocked'] })
+  status: text('status', { enum: ['pending', 'approved', 'in_progress', 'completed', 'blocked', 'pending_review'] })
    .notNull()
    .default('pending'),
  createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
@@ -286,51 +289,75 @@ export const agentsRelations = relations(agents, ({ one, many }) => ({
    fields: [agents.accountId],
    references: [accounts.id],
  }),
-  proposals: many(proposals),
+  changeSets: many(changeSets),
 }));

 export type Agent = InferSelectModel<typeof agents>;
 export type NewAgent = InferInsertModel<typeof agents>;

 // ============================================================================
-// PROPOSALS
+// CHANGE SETS
 // ============================================================================

-export const proposals = sqliteTable('proposals', {
+export const changeSets = sqliteTable('change_sets', {
  id: text('id').primaryKey(),
  agentId: text('agent_id')
-    .notNull()
-    .references(() => agents.id, { onDelete: 'cascade' }),
+    .references(() => agents.id, { onDelete: 'set null' }),
+  agentName: text('agent_name').notNull(),
  initiativeId: text('initiative_id')
    .notNull()
    .references(() => initiatives.id, { onDelete: 'cascade' }),
-  targetType: text('target_type', { enum: ['page', 'phase', 'task'] }).notNull(),
-  targetId: text('target_id'), // existing entity ID (e.g. pageId for updates), null for creates
-  title: text('title').notNull(),
+  mode: text('mode', { enum: ['breakdown', 'decompose', 'refine'] }).notNull(),
  summary: text('summary'),
-  content: text('content'), // markdown body (pages), description (phases/tasks)
-  metadata: text('metadata'), // JSON: type-specific data (phase number, task category, deps)
-  status: text('status', { enum: ['pending', 'accepted', 'dismissed'] })
+  status: text('status', { enum: ['applied', 'reverted'] })
    .notNull()
-    .default('pending'),
-  sortOrder: integer('sort_order').notNull().default(0),
+    .default('applied'),
+  revertedAt: integer('reverted_at', { mode: 'timestamp' }),
  createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
-  updatedAt: integer('updated_at', { mode: 'timestamp' }).notNull(),
-});
+}, (table) => [
+  index('change_sets_initiative_id_idx').on(table.initiativeId),
+]);

-export const proposalsRelations = relations(proposals, ({ one }) => ({
+export const changeSetsRelations = relations(changeSets, ({ one, many }) => ({
  agent: one(agents, {
-    fields: [proposals.agentId],
+    fields: [changeSets.agentId],
    references: [agents.id],
  }),
  initiative: one(initiatives, {
-    fields: [proposals.initiativeId],
+    fields: [changeSets.initiativeId],
    references: [initiatives.id],
  }),
+  entries: many(changeSetEntries),
+}));
+
+export type ChangeSet = InferSelectModel<typeof changeSets>;
+export type NewChangeSet = InferInsertModel<typeof changeSets>;
+
+export const changeSetEntries = sqliteTable('change_set_entries', {
+  id: text('id').primaryKey(),
+  changeSetId: text('change_set_id')
+    .notNull()
+    .references(() => changeSets.id, { onDelete: 'cascade' }),
+  entityType: text('entity_type', { enum: ['page', 'phase', 'task', 'phase_dependency'] }).notNull(),
+  entityId: text('entity_id').notNull(),
+  action: text('action', { enum: ['create', 'update', 'delete'] }).notNull(),
+  previousState: text('previous_state'), // JSON snapshot, null for creates
+  newState: text('new_state'), // JSON snapshot, null for deletes
+  sortOrder: integer('sort_order').notNull().default(0),
+  createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
+}, (table) => [
+  index('change_set_entries_change_set_id_idx').on(table.changeSetId),
+]);
+
+export const changeSetEntriesRelations = relations(changeSetEntries, ({ one }) => ({
+  changeSet: one(changeSets, {
+    fields: [changeSetEntries.changeSetId],
+    references: [changeSets.id],
+  }),
 }));

-export type Proposal = InferSelectModel<typeof proposals>;
-export type NewProposal = InferInsertModel<typeof proposals>;
+export type ChangeSetEntry = InferSelectModel<typeof changeSetEntries>;
+export type NewChangeSetEntry = InferInsertModel<typeof changeSetEntries>;

 // ============================================================================
 // MESSAGES
--- a/src/dispatch/manager.ts
+++ b/src/dispatch/manager.ts
@@ -19,8 +19,10 @@ import type { AgentManager } from '../agent/types.js';
 import type { TaskRepository } from '../db/repositories/task-repository.js';
 import type { MessageRepository } from '../db/repositories/message-repository.js';
 import type { InitiativeRepository } from '../db/repositories/initiative-repository.js';
+import type { PhaseRepository } from '../db/repositories/phase-repository.js';
 import type { Task } from '../db/schema.js';
 import type { DispatchManager, QueuedTask, DispatchResult } from './types.js';
+import { initiativeBranchName, phaseBranchName, taskBranchName } from '../git/branch-naming.js';
 import { createModuleLogger } from '../logger/index.js';

 const log = createModuleLogger('dispatch');
@@ -59,7 +61,8 @@ export class DefaultDispatchManager implements DispatchManager {
    private messageRepository: MessageRepository,
    private agentManager: AgentManager,
    private eventBus: EventBus,
-    private initiativeRepository?: InitiativeRepository
+    private initiativeRepository?: InitiativeRepository,
+    private phaseRepository?: PhaseRepository,
  ) {}

  /**
@@ -320,10 +323,39 @@ export class DefaultDispatchManager implements DispatchManager {
      };
    }

+    // Compute branch info for branch-aware spawning
+    let baseBranch: string | undefined;
+    let branchName: string | undefined;
+
+    if (task.phaseId && task.initiativeId && this.initiativeRepository && this.phaseRepository) {
+      try {
+        const initiative = await this.initiativeRepository.findById(task.initiativeId);
+        const phase = await this.phaseRepository.findById(task.phaseId);
+        if (initiative?.mergeTarget && phase) {
+          const initBranch = initiativeBranchName(initiative.mergeTarget);
+
+          if (task.category === 'merge') {
+            // Merge tasks work directly on the phase branch
+            baseBranch = initBranch;
+            branchName = phaseBranchName(initBranch, phase.name);
+          } else {
+            baseBranch = phaseBranchName(initBranch, phase.name);
+            branchName = taskBranchName(initBranch, task.id);
+          }
+        }
+      } catch {
+        // Non-fatal: fall back to default branching
+      }
+    }
+
    // Spawn agent with task (alias auto-generated by agent manager)
    const agent = await this.agentManager.spawn({
      taskId: nextTask.taskId,
+      initiativeId: task.initiativeId ?? undefined,
+      phaseId: task.phaseId ?? undefined,
      prompt: task.description || task.name,
+      baseBranch,
+      branchName,
    });

    log.info({ taskId: nextTask.taskId, agentId: agent.id }, 'task dispatched');
--- a/src/dispatch/phase-manager.ts
+++ b/src/dispatch/phase-manager.ts
@@ -16,7 +16,15 @@ import type {
 } from '../events/index.js';
 import type { PhaseRepository } from '../db/repositories/phase-repository.js';
 import type { TaskRepository } from '../db/repositories/task-repository.js';
+import type { InitiativeRepository } from '../db/repositories/initiative-repository.js';
+import type { ProjectRepository } from '../db/repositories/project-repository.js';
+import type { BranchManager } from '../git/branch-manager.js';
 import type { PhaseDispatchManager, DispatchManager, QueuedPhase, PhaseDispatchResult } from './types.js';
+import { initiativeBranchName, phaseBranchName } from '../git/branch-naming.js';
+import { ensureProjectClone } from '../git/project-clones.js';
+import { createModuleLogger } from '../logger/index.js';
+
+const log = createModuleLogger('phase-dispatch');

 // =============================================================================
 // Internal Types
@@ -51,7 +59,11 @@ export class DefaultPhaseDispatchManager implements PhaseDispatchManager {
    private phaseRepository: PhaseRepository,
    private taskRepository: TaskRepository,
    private dispatchManager: DispatchManager,
-    private eventBus: EventBus
+    private eventBus: EventBus,
+    private initiativeRepository?: InitiativeRepository,
+    private projectRepository?: ProjectRepository,
+    private branchManager?: BranchManager,
+    private workspaceRoot?: string,
  ) {}

  /**
@@ -156,6 +168,26 @@ export class DefaultPhaseDispatchManager implements PhaseDispatchManager {
    // Update phase status to 'in_progress'
    await this.phaseRepository.update(nextPhase.phaseId, { status: 'in_progress' });

+    // Create phase branch in all linked project clones
+    if (this.initiativeRepository && this.projectRepository && this.branchManager && this.workspaceRoot) {
+      try {
+        const initiative = await this.initiativeRepository.findById(phase.initiativeId);
+        if (initiative?.mergeTarget) {
+          const initBranch = initiativeBranchName(initiative.mergeTarget);
+          const phBranch = phaseBranchName(initBranch, phase.name);
+          const projects = await this.projectRepository.findProjectsByInitiativeId(phase.initiativeId);
+          for (const project of projects) {
+            const clonePath = await ensureProjectClone(project, this.workspaceRoot);
+            await this.branchManager.ensureBranch(clonePath, initBranch, 'main');
+            await this.branchManager.ensureBranch(clonePath, phBranch, initBranch);
+          }
+          log.info({ phaseId: nextPhase.phaseId, phBranch, initBranch }, 'phase branch created');
+        }
+      } catch (err) {
+        log.error({ phaseId: nextPhase.phaseId, err: err instanceof Error ? err.message : String(err) }, 'failed to create phase branch');
+      }
+    }
+
    // Remove from queue (now being worked on)
    this.phaseQueue.delete(nextPhase.phaseId);

--- a/src/events/index.ts
+++ b/src/events/index.ts
@@ -37,6 +37,9 @@ export type {
  PhaseStartedEvent,
  PhaseCompletedEvent,
  PhaseBlockedEvent,
+  PhasePendingReviewEvent,
+  PhaseMergedEvent,
+  TaskMergedEvent,
  MergeQueuedEvent,
  MergeStartedEvent,
  MergeCompletedEvent,
--- a/src/events/types.ts
+++ b/src/events/types.ts
@@ -320,6 +320,34 @@ export interface PhaseBlockedEvent extends DomainEvent {
  };
 }

+export interface PhasePendingReviewEvent extends DomainEvent {
+  type: 'phase:pending_review';
+  payload: {
+    phaseId: string;
+    initiativeId: string;
+  };
+}
+
+export interface PhaseMergedEvent extends DomainEvent {
+  type: 'phase:merged';
+  payload: {
+    phaseId: string;
+    initiativeId: string;
+    sourceBranch: string;
+    targetBranch: string;
+  };
+}
+
+export interface TaskMergedEvent extends DomainEvent {
+  type: 'task:merged';
+  payload: {
+    taskId: string;
+    phaseId: string;
+    sourceBranch: string;
+    targetBranch: string;
+  };
+}
+
 /**
 * Merge Coordination Events
 */
@@ -395,6 +423,29 @@ export interface PageDeletedEvent extends DomainEvent {
  };
 }

+/**
+ * Change Set Events
+ */
+
+export interface ChangeSetCreatedEvent extends DomainEvent {
+  type: 'changeset:created';
+  payload: {
+    changeSetId: string;
+    initiativeId: string;
+    agentId: string;
+    mode: string;
+    entryCount: number;
+  };
+}
+
+export interface ChangeSetRevertedEvent extends DomainEvent {
+  type: 'changeset:reverted';
+  payload: {
+    changeSetId: string;
+    initiativeId: string;
+  };
+}
+
 /**
 * Account Credential Events
 */
@@ -458,6 +509,9 @@ export type DomainEventMap =
  | PhaseStartedEvent
  | PhaseCompletedEvent
  | PhaseBlockedEvent
+  | PhasePendingReviewEvent
+  | PhaseMergedEvent
+  | TaskMergedEvent
  | MergeQueuedEvent
  | MergeStartedEvent
  | MergeCompletedEvent
@@ -465,6 +519,8 @@ export type DomainEventMap =
  | PageCreatedEvent
  | PageUpdatedEvent
  | PageDeletedEvent
+  | ChangeSetCreatedEvent
+  | ChangeSetRevertedEvent
  | AccountCredentialsRefreshedEvent
  | AccountCredentialsExpiredEvent
  | AccountCredentialsValidatedEvent;
--- a/src/execution/orchestrator.ts
+++ b/src/execution/orchestrator.ts
@@ -0,0 +1,226 @@
+/**
+ * Execution Orchestrator
+ *
+ * Subscribes to task:completed events and orchestrates the post-completion
+ * merge workflow:
+ * - Task branch → Phase branch (on task completion)
+ * - Phase branch → Initiative branch (when all phase tasks done)
+ *
+ * Supports two execution modes:
+ * - YOLO: auto-merge everything
+ * - Review per-phase: pause after each phase for diff review
+ */
+
+import type { EventBus, TaskCompletedEvent, PhasePendingReviewEvent, PhaseMergedEvent, TaskMergedEvent } from '../events/index.js';
+import type { BranchManager } from '../git/branch-manager.js';
+import type { PhaseRepository } from '../db/repositories/phase-repository.js';
+import type { TaskRepository } from '../db/repositories/task-repository.js';
+import type { InitiativeRepository } from '../db/repositories/initiative-repository.js';
+import type { ProjectRepository } from '../db/repositories/project-repository.js';
+import type { PhaseDispatchManager } from '../dispatch/types.js';
+import type { ConflictResolutionService } from '../coordination/conflict-resolution-service.js';
+import { initiativeBranchName, phaseBranchName, taskBranchName } from '../git/branch-naming.js';
+import { ensureProjectClone } from '../git/project-clones.js';
+import { createModuleLogger } from '../logger/index.js';
+
+const log = createModuleLogger('execution-orchestrator');
+
+export class ExecutionOrchestrator {
+  /** Serialize merges per phase to avoid concurrent merge conflicts */
+  private phaseMergeLocks: Map<string, Promise<void>> = new Map();
+
+  constructor(
+    private branchManager: BranchManager,
+    private phaseRepository: PhaseRepository,
+    private taskRepository: TaskRepository,
+    private initiativeRepository: InitiativeRepository,
+    private projectRepository: ProjectRepository,
+    private phaseDispatchManager: PhaseDispatchManager,
+    private conflictResolutionService: ConflictResolutionService,
+    private eventBus: EventBus,
+    private workspaceRoot: string,
+  ) {}
+
+  /**
+   * Start listening for task completion events.
+   */
+  start(): void {
+    this.eventBus.on<TaskCompletedEvent>('task:completed', (event) => {
+      this.handleTaskCompleted(event).catch((err) => {
+        log.error({ err: err instanceof Error ? err.message : String(err) }, 'error handling task:completed');
+      });
+    });
+    log.info('execution orchestrator started');
+  }
+
+  /**
+   * Handle a task:completed event.
+   * Merges the task branch into the phase branch, then checks if all phase tasks are done.
+   */
+  private async handleTaskCompleted(event: TaskCompletedEvent): Promise<void> {
+    const { taskId } = event.payload;
+
+    const task = await this.taskRepository.findById(taskId);
+    if (!task?.phaseId || !task.initiativeId) return;
+
+    const initiative = await this.initiativeRepository.findById(task.initiativeId);
+    if (!initiative?.mergeTarget) return;
+
+    const phase = await this.phaseRepository.findById(task.phaseId);
+    if (!phase) return;
+
+    // Skip merge tasks — they already work on the phase branch directly
+    if (task.category === 'merge') return;
+
+    const initBranch = initiativeBranchName(initiative.mergeTarget);
+    const phBranch = phaseBranchName(initBranch, phase.name);
+    const tBranch = taskBranchName(initBranch, task.id);
+
+    // Serialize merges per phase
+    const lock = this.phaseMergeLocks.get(task.phaseId) ?? Promise.resolve();
+    const mergeOp = lock.then(async () => {
+      await this.mergeTaskIntoPhase(taskId, task.phaseId!, tBranch, phBranch);
+    });
+    this.phaseMergeLocks.set(task.phaseId, mergeOp.catch(() => {}));
+    await mergeOp;
+
+    // Check if all phase tasks are done
+    const phaseTasks = await this.taskRepository.findByPhaseId(task.phaseId);
+    const allDone = phaseTasks.every((t) => t.status === 'completed');
+    if (allDone) {
+      await this.handlePhaseAllTasksDone(task.phaseId);
+    }
+  }
+
+  /**
+   * Merge a task branch into the phase branch for all linked projects.
+   */
+  private async mergeTaskIntoPhase(
+    taskId: string,
+    phaseId: string,
+    taskBranch: string,
+    phaseBranch: string,
+  ): Promise<void> {
+    const phase = await this.phaseRepository.findById(phaseId);
+    if (!phase) return;
+
+    const projects = await this.projectRepository.findProjectsByInitiativeId(phase.initiativeId);
+
+    for (const project of projects) {
+      const clonePath = await ensureProjectClone(project, this.workspaceRoot);
+
+      // Only merge if the task branch actually exists (agents may not have pushed)
+      const exists = await this.branchManager.branchExists(clonePath, taskBranch);
+      if (!exists) {
+        log.debug({ taskId, taskBranch, project: project.name }, 'task branch does not exist, skipping merge');
+        continue;
+      }
+
+      const result = await this.branchManager.mergeBranch(clonePath, taskBranch, phaseBranch);
+
+      if (!result.success && result.conflicts) {
+        log.warn({ taskId, taskBranch, phaseBranch, conflicts: result.conflicts }, 'task merge conflict');
+        await this.conflictResolutionService.handleConflict(taskId, result.conflicts, {
+          sourceBranch: taskBranch,
+          targetBranch: phaseBranch,
+        });
+        return;
+      }
+
+      log.info({ taskId, taskBranch, phaseBranch, project: project.name }, 'task branch merged into phase branch');
+    }
+
+    // Emit task:merged event
+    const mergedEvent: TaskMergedEvent = {
+      type: 'task:merged',
+      timestamp: new Date(),
+      payload: { taskId, phaseId, sourceBranch: taskBranch, targetBranch: phaseBranch },
+    };
+    this.eventBus.emit(mergedEvent);
+  }
+
+  /**
+   * Handle all tasks in a phase being done.
+   * YOLO mode: auto-merge phase → initiative.
+   * Review mode: set phase to pending_review.
+   */
+  private async handlePhaseAllTasksDone(phaseId: string): Promise<void> {
+    const phase = await this.phaseRepository.findById(phaseId);
+    if (!phase) return;
+
+    const initiative = await this.initiativeRepository.findById(phase.initiativeId);
+    if (!initiative?.mergeTarget) return;
+
+    if (initiative.executionMode === 'yolo') {
+      await this.mergePhaseIntoInitiative(phaseId);
+      await this.phaseDispatchManager.completePhase(phaseId);
+      await this.phaseDispatchManager.dispatchNextPhase();
+    } else {
+      // review_per_phase
+      await this.phaseRepository.update(phaseId, { status: 'pending_review' as any });
+
+      const event: PhasePendingReviewEvent = {
+        type: 'phase:pending_review',
+        timestamp: new Date(),
+        payload: { phaseId, initiativeId: phase.initiativeId },
+      };
+      this.eventBus.emit(event);
+
+      log.info({ phaseId, initiativeId: phase.initiativeId }, 'phase pending review');
+    }
+  }
+
+  /**
+   * Merge phase branch into initiative branch for all linked projects.
+   */
+  private async mergePhaseIntoInitiative(phaseId: string): Promise<void> {
+    const phase = await this.phaseRepository.findById(phaseId);
+    if (!phase) return;
+
+    const initiative = await this.initiativeRepository.findById(phase.initiativeId);
+    if (!initiative?.mergeTarget) return;
+
+    const initBranch = initiativeBranchName(initiative.mergeTarget);
+    const phBranch = phaseBranchName(initBranch, phase.name);
+
+    const projects = await this.projectRepository.findProjectsByInitiativeId(phase.initiativeId);
+
+    for (const project of projects) {
+      const clonePath = await ensureProjectClone(project, this.workspaceRoot);
+      const result = await this.branchManager.mergeBranch(clonePath, phBranch, initBranch);
+
+      if (!result.success) {
+        log.error({ phaseId, phBranch, initBranch, conflicts: result.conflicts }, 'phase merge conflict');
+        throw new Error(`Phase merge conflict: ${result.message}`);
+      }
+
+      log.info({ phaseId, phBranch, initBranch, project: project.name }, 'phase branch merged into initiative branch');
+    }
+
+    // Emit phase:merged event
+    const mergedEvent: PhaseMergedEvent = {
+      type: 'phase:merged',
+      timestamp: new Date(),
+      payload: { phaseId, initiativeId: phase.initiativeId, sourceBranch: phBranch, targetBranch: initBranch },
+    };
+    this.eventBus.emit(mergedEvent);
+  }
+
+  /**
+   * Approve and merge a phase that's pending review.
+   * Called from tRPC when user clicks approve in ReviewTab.
+   */
+  async approveAndMergePhase(phaseId: string): Promise<void> {
+    const phase = await this.phaseRepository.findById(phaseId);
+    if (!phase) throw new Error(`Phase not found: ${phaseId}`);
+    if (phase.status !== 'pending_review') {
+      throw new Error(`Phase ${phaseId} is not pending review (status: ${phase.status})`);
+    }
+
+    await this.mergePhaseIntoInitiative(phaseId);
+    await this.phaseDispatchManager.completePhase(phaseId);
+    await this.phaseDispatchManager.dispatchNextPhase();
+
+    log.info({ phaseId }, 'phase review approved and merged');
+  }
+}
--- a/src/git/branch-manager.ts
+++ b/src/git/branch-manager.ts
@@ -0,0 +1,41 @@
+/**
+ * BranchManager Port Interface
+ *
+ * Manages branch-level git operations (create, merge, diff, delete)
+ * across project clones. Works directly on branches without requiring
+ * a worktree to be checked out.
+ */
+
+import type { MergeResult } from './types.js';
+
+export interface BranchManager {
+  /**
+   * Ensure a branch exists. Creates it from baseBranch if it doesn't.
+   * Idempotent — no-op if the branch already exists.
+   */
+  ensureBranch(repoPath: string, branch: string, baseBranch: string): Promise<void>;
+
+  /**
+   * Merge sourceBranch into targetBranch.
+   * Uses an ephemeral worktree for merge safety.
+   * Returns conflict info if merge fails.
+   */
+  mergeBranch(repoPath: string, sourceBranch: string, targetBranch: string): Promise<MergeResult>;
+
+  /**
+   * Get the raw unified diff between two branches.
+   * Uses three-dot diff (baseBranch...headBranch) to show changes
+   * introduced by headBranch since it diverged from baseBranch.
+   */
+  diffBranches(repoPath: string, baseBranch: string, headBranch: string): Promise<string>;
+
+  /**
+   * Delete a branch. No-op if the branch doesn't exist.
+   */
+  deleteBranch(repoPath: string, branch: string): Promise<void>;
+
+  /**
+   * Check if a branch exists in the repository.
+   */
+  branchExists(repoPath: string, branch: string): Promise<boolean>;
+}
--- a/src/git/branch-naming.ts
+++ b/src/git/branch-naming.ts
@@ -0,0 +1,42 @@
+/**
+ * Branch Naming Utility
+ *
+ * Pure functions for computing deterministic branch names
+ * in the initiative → phase → task branch hierarchy.
+ */
+
+/**
+ * Convert a name to a URL/branch-safe slug.
+ * Lowercase, replace non-alphanumeric runs with single hyphens, trim hyphens.
+ */
+export function slugify(name: string): string {
+  return name
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, '-')
+    .replace(/^-|-$/g, '');
+}
+
+/**
+ * Compute the initiative branch name.
+ * Returns the mergeTarget as-is (it's already a branch name), or 'main' if unset.
+ */
+export function initiativeBranchName(mergeTarget: string | null): string {
+  return mergeTarget ?? 'main';
+}
+
+/**
+ * Compute a phase branch name.
+ * Format: `<initiativeBranch>-phase-<slugified-phase-name>`
+ */
+export function phaseBranchName(initiativeBranch: string, phaseName: string): string {
+  return `${initiativeBranch}-phase-${slugify(phaseName)}`;
+}
+
+/**
+ * Compute a task branch name.
+ * Format: `<initiativeBranch>-task-<taskId>`
+ * Uses the raw task ID (already unique) to avoid collisions.
+ */
+export function taskBranchName(initiativeBranch: string, taskId: string): string {
+  return `${initiativeBranch}-task-${taskId}`;
+}
--- a/src/git/simple-git-branch-manager.ts
+++ b/src/git/simple-git-branch-manager.ts
@@ -0,0 +1,107 @@
+/**
+ * SimpleGit BranchManager Adapter
+ *
+ * Implementation of BranchManager port using simple-git.
+ * Performs branch-level operations (create, merge, diff, delete)
+ * on project clones without requiring a worktree.
+ */
+
+import { join } from 'node:path';
+import { mkdtempSync, rmSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { simpleGit } from 'simple-git';
+import type { BranchManager } from './branch-manager.js';
+import type { MergeResult } from './types.js';
+import { createModuleLogger } from '../logger/index.js';
+
+const log = createModuleLogger('branch-manager');
+
+export class SimpleGitBranchManager implements BranchManager {
+  async ensureBranch(repoPath: string, branch: string, baseBranch: string): Promise<void> {
+    const git = simpleGit(repoPath);
+
+    const exists = await this.branchExists(repoPath, branch);
+    if (exists) {
+      log.debug({ repoPath, branch }, 'branch already exists');
+      return;
+    }
+
+    await git.branch([branch, baseBranch]);
+    log.info({ repoPath, branch, baseBranch }, 'branch created');
+  }
+
+  async mergeBranch(repoPath: string, sourceBranch: string, targetBranch: string): Promise<MergeResult> {
+    // Use an ephemeral worktree for merge safety
+    const tmpPath = mkdtempSync(join(tmpdir(), 'cw-merge-'));
+    const repoGit = simpleGit(repoPath);
+
+    try {
+      // Create ephemeral worktree on target branch
+      await repoGit.raw(['worktree', 'add', tmpPath, targetBranch]);
+
+      const wtGit = simpleGit(tmpPath);
+
+      try {
+        await wtGit.merge([sourceBranch, '--no-edit']);
+
+        log.info({ repoPath, sourceBranch, targetBranch }, 'merge completed cleanly');
+        return { success: true, message: `Merged ${sourceBranch} into ${targetBranch}` };
+      } catch (mergeErr) {
+        // Check for merge conflicts
+        const status = await wtGit.status();
+        const conflicts = status.conflicted;
+
+        if (conflicts.length > 0) {
+          log.warn({ repoPath, sourceBranch, targetBranch, conflicts }, 'merge conflicts detected');
+          await wtGit.merge(['--abort']);
+          return {
+            success: false,
+            conflicts,
+            message: `Merge conflicts in ${conflicts.length} file(s)`,
+          };
+        }
+
+        // Non-conflict merge failure
+        throw mergeErr;
+      }
+    } finally {
+      // Clean up ephemeral worktree
+      try {
+        await repoGit.raw(['worktree', 'remove', tmpPath, '--force']);
+      } catch {
+        // Best-effort cleanup — force-remove the directory if worktree remove fails
+        try { rmSync(tmpPath, { recursive: true, force: true }); } catch { /* ignore */ }
+        try { await repoGit.raw(['worktree', 'prune']); } catch { /* ignore */ }
+      }
+    }
+  }
+
+  async diffBranches(repoPath: string, baseBranch: string, headBranch: string): Promise<string> {
+    const git = simpleGit(repoPath);
+    const diff = await git.diff([`${baseBranch}...${headBranch}`]);
+    return diff;
+  }
+
+  async deleteBranch(repoPath: string, branch: string): Promise<void> {
+    const git = simpleGit(repoPath);
+    const exists = await this.branchExists(repoPath, branch);
+    if (!exists) return;
+
+    try {
+      await git.deleteLocalBranch(branch, true);
+      log.info({ repoPath, branch }, 'branch deleted');
+    } catch (err) {
+      log.warn({ repoPath, branch, err: err instanceof Error ? err.message : String(err) }, 'failed to delete branch');
+    }
+  }
+
+  async branchExists(repoPath: string, branch: string): Promise<boolean> {
+    const git = simpleGit(repoPath);
+    try {
+      const branches = await git.branchLocal();
+      return branches.all.includes(branch);
+    } catch {
+      return false;
+    }
+  }
+}
--- a/src/server/trpc-adapter.ts
+++ b/src/server/trpc-adapter.ts
@@ -17,11 +17,13 @@ import type { PhaseRepository } from '../db/repositories/phase-repository.js';
 import type { PageRepository } from '../db/repositories/page-repository.js';
 import type { ProjectRepository } from '../db/repositories/project-repository.js';
 import type { AccountRepository } from '../db/repositories/account-repository.js';
-import type { ProposalRepository } from '../db/repositories/proposal-repository.js';
+import type { ChangeSetRepository } from '../db/repositories/change-set-repository.js';
 import type { LogChunkRepository } from '../db/repositories/log-chunk-repository.js';
 import type { AccountCredentialManager } from '../agent/credentials/types.js';
 import type { DispatchManager, PhaseDispatchManager } from '../dispatch/types.js';
 import type { CoordinationManager } from '../coordination/types.js';
+import type { BranchManager } from '../git/branch-manager.js';
+import type { ExecutionOrchestrator } from '../execution/orchestrator.js';

 /**
 * Options for creating the tRPC request handler.
@@ -55,12 +57,16 @@ export interface TrpcAdapterOptions {
  projectRepository?: ProjectRepository;
  /** Account repository for account CRUD and load balancing */
  accountRepository?: AccountRepository;
-  /** Proposal repository for agent proposal CRUD operations */
-  proposalRepository?: ProposalRepository;
+  /** Change set repository for agent change set operations */
+  changeSetRepository?: ChangeSetRepository;
  /** Log chunk repository for agent output persistence */
  logChunkRepository?: LogChunkRepository;
  /** Credential manager for account OAuth token management */
  credentialManager?: AccountCredentialManager;
+  /** Branch manager for git branch operations */
+  branchManager?: BranchManager;
+  /** Execution orchestrator for phase merge/review workflow */
+  executionOrchestrator?: ExecutionOrchestrator;
  /** Absolute path to the workspace root (.cwrc directory) */
  workspaceRoot?: string;
 }
@@ -135,9 +141,11 @@ export function createTrpcHandler(options: TrpcAdapterOptions) {
          pageRepository: options.pageRepository,
          projectRepository: options.projectRepository,
          accountRepository: options.accountRepository,
-          proposalRepository: options.proposalRepository,
+          changeSetRepository: options.changeSetRepository,
          logChunkRepository: options.logChunkRepository,
          credentialManager: options.credentialManager,
+          branchManager: options.branchManager,
+          executionOrchestrator: options.executionOrchestrator,
          workspaceRoot: options.workspaceRoot,
        }),
    });
--- a/src/test/integration/crash-race-condition.test.ts
+++ b/src/test/integration/crash-race-condition.test.ts
@@ -12,7 +12,6 @@ import { tmpdir } from 'node:os';
 import { randomBytes } from 'node:crypto';
 import { OutputHandler } from '../../agent/output-handler.js';
 import type { AgentRepository } from '../../db/repositories/agent-repository.js';
-import type { ProposalRepository } from '../../db/repositories/proposal-repository.js';

 interface TestAgent {
  id: string;
@@ -40,7 +39,6 @@ describe('Crash marking race condition', () => {
  let testAgent: TestAgent;
  let testDir: string;
  let mockRepo: AgentRepository;
-  let mockProposalRepo: ProposalRepository;

  // Track all repository calls
  let updateCalls: Array<{ id: string; data: any }> = [];
@@ -99,9 +97,7 @@ describe('Crash marking race condition', () => {
      async delete() { throw new Error('Not implemented'); }
    };

-    mockProposalRepo = {} as any; // Not used in this test
-
-    outputHandler = new OutputHandler(mockRepo, undefined, mockProposalRepo);
+    outputHandler = new OutputHandler(mockRepo);
  });

  afterEach(async () => {
--- a/src/trpc/context.ts
+++ b/src/trpc/context.ts
@@ -14,11 +14,13 @@ import type { PhaseRepository } from '../db/repositories/phase-repository.js';
 import type { PageRepository } from '../db/repositories/page-repository.js';
 import type { ProjectRepository } from '../db/repositories/project-repository.js';
 import type { AccountRepository } from '../db/repositories/account-repository.js';
-import type { ProposalRepository } from '../db/repositories/proposal-repository.js';
+import type { ChangeSetRepository } from '../db/repositories/change-set-repository.js';
 import type { LogChunkRepository } from '../db/repositories/log-chunk-repository.js';
 import type { AccountCredentialManager } from '../agent/credentials/types.js';
 import type { DispatchManager, PhaseDispatchManager } from '../dispatch/types.js';
 import type { CoordinationManager } from '../coordination/types.js';
+import type { BranchManager } from '../git/branch-manager.js';
+import type { ExecutionOrchestrator } from '../execution/orchestrator.js';

 // Re-export for convenience
 export type { EventBus, DomainEvent };
@@ -55,12 +57,16 @@ export interface TRPCContext {
  projectRepository?: ProjectRepository;
  /** Account repository for account CRUD and load balancing */
  accountRepository?: AccountRepository;
-  /** Proposal repository for agent proposal CRUD operations */
-  proposalRepository?: ProposalRepository;
+  /** Change set repository for agent change set operations */
+  changeSetRepository?: ChangeSetRepository;
  /** Log chunk repository for agent output persistence */
  logChunkRepository?: LogChunkRepository;
  /** Credential manager for account OAuth token management */
  credentialManager?: AccountCredentialManager;
+  /** Branch manager for git branch operations */
+  branchManager?: BranchManager;
+  /** Execution orchestrator for phase merge/review workflow */
+  executionOrchestrator?: ExecutionOrchestrator;
  /** Absolute path to the workspace root (.cwrc directory) */
  workspaceRoot?: string;
 }
@@ -83,9 +89,11 @@ export interface CreateContextOptions {
  pageRepository?: PageRepository;
  projectRepository?: ProjectRepository;
  accountRepository?: AccountRepository;
-  proposalRepository?: ProposalRepository;
+  changeSetRepository?: ChangeSetRepository;
  logChunkRepository?: LogChunkRepository;
  credentialManager?: AccountCredentialManager;
+  branchManager?: BranchManager;
+  executionOrchestrator?: ExecutionOrchestrator;
  workspaceRoot?: string;
 }

@@ -111,9 +119,11 @@ export function createContext(options: CreateContextOptions): TRPCContext {
    pageRepository: options.pageRepository,
    projectRepository: options.projectRepository,
    accountRepository: options.accountRepository,
-    proposalRepository: options.proposalRepository,
+    changeSetRepository: options.changeSetRepository,
    logChunkRepository: options.logChunkRepository,
    credentialManager: options.credentialManager,
+    branchManager: options.branchManager,
+    executionOrchestrator: options.executionOrchestrator,
    workspaceRoot: options.workspaceRoot,
  };
 }
--- a/src/trpc/router.ts
+++ b/src/trpc/router.ts
@@ -19,7 +19,7 @@ import { architectProcedures } from './routers/architect.js';
 import { projectProcedures } from './routers/project.js';
 import { pageProcedures } from './routers/page.js';
 import { accountProcedures } from './routers/account.js';
-import { proposalProcedures } from './routers/proposal.js';
+import { changeSetProcedures } from './routers/change-set.js';
 import { subscriptionProcedures } from './routers/subscription.js';

 // Re-export tRPC primitives (preserves existing import paths)
@@ -55,7 +55,7 @@ export const appRouter = router({
  ...projectProcedures(publicProcedure),
  ...pageProcedures(publicProcedure),
  ...accountProcedures(publicProcedure),
-  ...proposalProcedures(publicProcedure),
+  ...changeSetProcedures(publicProcedure),
  ...subscriptionProcedures(publicProcedure),
 });

--- a/src/trpc/routers/_helpers.ts
+++ b/src/trpc/routers/_helpers.ts
@@ -14,10 +14,12 @@ import type { PhaseRepository } from '../../db/repositories/phase-repository.js'
 import type { PageRepository } from '../../db/repositories/page-repository.js';
 import type { ProjectRepository } from '../../db/repositories/project-repository.js';
 import type { AccountRepository } from '../../db/repositories/account-repository.js';
-import type { ProposalRepository } from '../../db/repositories/proposal-repository.js';
+import type { ChangeSetRepository } from '../../db/repositories/change-set-repository.js';
 import type { LogChunkRepository } from '../../db/repositories/log-chunk-repository.js';
 import type { DispatchManager, PhaseDispatchManager } from '../../dispatch/types.js';
 import type { CoordinationManager } from '../../coordination/types.js';
+import type { BranchManager } from '../../git/branch-manager.js';
+import type { ExecutionOrchestrator } from '../../execution/orchestrator.js';

 export function requireAgentManager(ctx: TRPCContext) {
  if (!ctx.agentManager) {
@@ -129,14 +131,14 @@ export function requireAccountRepository(ctx: TRPCContext): AccountRepository {
  return ctx.accountRepository;
 }

-export function requireProposalRepository(ctx: TRPCContext): ProposalRepository {
-  if (!ctx.proposalRepository) {
+export function requireChangeSetRepository(ctx: TRPCContext): ChangeSetRepository {
+  if (!ctx.changeSetRepository) {
    throw new TRPCError({
      code: 'INTERNAL_SERVER_ERROR',
-      message: 'Proposal repository not available',
+      message: 'Change set repository not available',
    });
  }
-  return ctx.proposalRepository;
+  return ctx.changeSetRepository;
 }

 export function requireLogChunkRepository(ctx: TRPCContext): LogChunkRepository {
@@ -148,3 +150,23 @@ export function requireLogChunkRepository(ctx: TRPCContext): LogChunkRepository
  }
  return ctx.logChunkRepository;
 }
+
+export function requireBranchManager(ctx: TRPCContext): BranchManager {
+  if (!ctx.branchManager) {
+    throw new TRPCError({
+      code: 'INTERNAL_SERVER_ERROR',
+      message: 'Branch manager not available',
+    });
+  }
+  return ctx.branchManager;
+}
+
+export function requireExecutionOrchestrator(ctx: TRPCContext): ExecutionOrchestrator {
+  if (!ctx.executionOrchestrator) {
+    throw new TRPCError({
+      code: 'INTERNAL_SERVER_ERROR',
+      message: 'Execution orchestrator not available',
+    });
+  }
+  return ctx.executionOrchestrator;
+}
--- a/src/trpc/routers/change-set.ts
+++ b/src/trpc/routers/change-set.ts
@@ -0,0 +1,146 @@
+/**
+ * Change Set Router — list, get, revert workflows
+ */
+
+import { TRPCError } from '@trpc/server';
+import { z } from 'zod';
+import type { ProcedureBuilder } from '../trpc.js';
+import {
+  requireChangeSetRepository,
+  requirePhaseRepository,
+  requireTaskRepository,
+  requirePageRepository,
+} from './_helpers.js';
+
+export function changeSetProcedures(publicProcedure: ProcedureBuilder) {
+  return {
+    listChangeSets: publicProcedure
+      .input(z.object({
+        initiativeId: z.string().min(1).optional(),
+        agentId: z.string().min(1).optional(),
+      }))
+      .query(async ({ ctx, input }) => {
+        const repo = requireChangeSetRepository(ctx);
+        if (input.agentId) {
+          return repo.findByAgentId(input.agentId);
+        }
+        if (input.initiativeId) {
+          return repo.findByInitiativeId(input.initiativeId);
+        }
+        throw new TRPCError({
+          code: 'BAD_REQUEST',
+          message: 'Either agentId or initiativeId is required',
+        });
+      }),
+
+    getChangeSet: publicProcedure
+      .input(z.object({ id: z.string().min(1) }))
+      .query(async ({ ctx, input }) => {
+        const repo = requireChangeSetRepository(ctx);
+        const cs = await repo.findByIdWithEntries(input.id);
+        if (!cs) {
+          throw new TRPCError({ code: 'NOT_FOUND', message: `ChangeSet '${input.id}' not found` });
+        }
+        return cs;
+      }),
+
+    revertChangeSet: publicProcedure
+      .input(z.object({ id: z.string().min(1), force: z.boolean().optional() }))
+      .mutation(async ({ ctx, input }) => {
+        const repo = requireChangeSetRepository(ctx);
+        const cs = await repo.findByIdWithEntries(input.id);
+        if (!cs) {
+          throw new TRPCError({ code: 'NOT_FOUND', message: `ChangeSet '${input.id}' not found` });
+        }
+        if (cs.status === 'reverted') {
+          throw new TRPCError({ code: 'BAD_REQUEST', message: 'ChangeSet is already reverted' });
+        }
+
+        const phaseRepo = requirePhaseRepository(ctx);
+        const taskRepo = requireTaskRepository(ctx);
+        const pageRepo = requirePageRepository(ctx);
+
+        // Conflict detection (unless force)
+        if (!input.force) {
+          const conflicts: string[] = [];
+          for (const entry of cs.entries) {
+            if (entry.action === 'create') {
+              if (entry.entityType === 'phase') {
+                const phase = await phaseRepo.findById(entry.entityId);
+                if (phase && phase.status === 'in_progress') {
+                  conflicts.push(`Phase "${phase.name}" is in progress`);
+                }
+              } else if (entry.entityType === 'task') {
+                const task = await taskRepo.findById(entry.entityId);
+                if (task && task.status === 'in_progress') {
+                  conflicts.push(`Task "${task.name}" is in progress`);
+                }
+              }
+            } else if (entry.action === 'update' && entry.entityType === 'page' && entry.newState) {
+              const page = await pageRepo.findById(entry.entityId);
+              if (page) {
+                const expectedContent = JSON.parse(entry.newState).content;
+                if (page.content !== expectedContent) {
+                  conflicts.push(`Page "${page.title}" was modified since change set was applied`);
+                }
+              }
+            }
+          }
+          if (conflicts.length > 0) {
+            return { success: false as const, conflicts };
+          }
+        }
+
+        // Apply reverts in reverse entry order
+        const reversedEntries = [...cs.entries].reverse();
+        for (const entry of reversedEntries) {
+          try {
+            if (entry.action === 'create') {
+              switch (entry.entityType) {
+                case 'phase':
+                  try { await phaseRepo.delete(entry.entityId); } catch { /* already deleted */ }
+                  break;
+                case 'task':
+                  try { await taskRepo.delete(entry.entityId); } catch { /* already deleted */ }
+                  break;
+                case 'phase_dependency': {
+                  const depData = JSON.parse(entry.newState || '{}');
+                  if (depData.phaseId && depData.dependsOnPhaseId) {
+                    try { await phaseRepo.removeDependency(depData.phaseId, depData.dependsOnPhaseId); } catch { /* already removed */ }
+                  }
+                  break;
+                }
+              }
+            } else if (entry.action === 'update' && entry.previousState) {
+              const prev = JSON.parse(entry.previousState);
+              switch (entry.entityType) {
+                case 'page':
+                  await pageRepo.update(entry.entityId, {
+                    content: prev.content,
+                    title: prev.title,
+                  });
+                  ctx.eventBus.emit({
+                    type: 'page:updated',
+                    timestamp: new Date(),
+                    payload: { pageId: entry.entityId, initiativeId: cs.initiativeId, title: prev.title },
+                  });
+                  break;
+              }
+            }
+          } catch (err) {
+            // Log but continue reverting other entries
+          }
+        }
+
+        await repo.markReverted(input.id);
+
+        ctx.eventBus.emit({
+          type: 'changeset:reverted' as const,
+          timestamp: new Date(),
+          payload: { changeSetId: cs.id, initiativeId: cs.initiativeId },
+        });
+
+        return { success: true as const };
+      }),
+  };
+}
--- a/src/trpc/routers/initiative.ts
+++ b/src/trpc/routers/initiative.ts
@@ -13,6 +13,8 @@ export function initiativeProcedures(publicProcedure: ProcedureBuilder) {
      .input(z.object({
        name: z.string().min(1),
        projectIds: z.array(z.string().min(1)).min(1).optional(),
+        executionMode: z.enum(['yolo', 'review_per_phase']).optional(),
+        mergeTarget: z.string().nullable().optional(),
      }))
      .mutation(async ({ ctx, input }) => {
        const repo = requireInitiativeRepository(ctx);
@@ -33,6 +35,8 @@ export function initiativeProcedures(publicProcedure: ProcedureBuilder) {
        const initiative = await repo.create({
          name: input.name,
          status: 'active',
+          ...(input.executionMode && { executionMode: input.executionMode }),
+          ...(input.mergeTarget !== undefined && { mergeTarget: input.mergeTarget }),
        });

        if (input.projectIds && input.projectIds.length > 0) {
@@ -103,6 +107,7 @@ export function initiativeProcedures(publicProcedure: ProcedureBuilder) {
        initiativeId: z.string().min(1),
        mergeRequiresApproval: z.boolean().optional(),
        mergeTarget: z.string().nullable().optional(),
+        executionMode: z.enum(['yolo', 'review_per_phase']).optional(),
      }))
      .mutation(async ({ ctx, input }) => {
        const repo = requireInitiativeRepository(ctx);
--- a/src/trpc/routers/phase.ts
+++ b/src/trpc/routers/phase.ts
@@ -6,7 +6,9 @@ import { TRPCError } from '@trpc/server';
 import { z } from 'zod';
 import type { Phase } from '../../db/schema.js';
 import type { ProcedureBuilder } from '../trpc.js';
-import { requirePhaseRepository, requireTaskRepository } from './_helpers.js';
+import { requirePhaseRepository, requireTaskRepository, requireBranchManager, requireInitiativeRepository, requireProjectRepository, requireExecutionOrchestrator } from './_helpers.js';
+import { initiativeBranchName, phaseBranchName } from '../../git/branch-naming.js';
+import { ensureProjectClone } from '../../git/project-clones.js';

 export function phaseProcedures(publicProcedure: ProcedureBuilder) {
  return {
@@ -50,7 +52,7 @@ export function phaseProcedures(publicProcedure: ProcedureBuilder) {
        id: z.string().min(1),
        name: z.string().min(1).optional(),
        content: z.string().nullable().optional(),
-        status: z.enum(['pending', 'approved', 'in_progress', 'completed', 'blocked']).optional(),
+        status: z.enum(['pending', 'approved', 'in_progress', 'completed', 'blocked', 'pending_review']).optional(),
      }))
      .mutation(async ({ ctx, input }) => {
        const repo = requirePhaseRepository(ctx);
@@ -181,5 +183,56 @@ export function phaseProcedures(publicProcedure: ProcedureBuilder) {
        await repo.removeDependency(input.phaseId, input.dependsOnPhaseId);
        return { success: true };
      }),
+
+    getPhaseReviewDiff: publicProcedure
+      .input(z.object({ phaseId: z.string().min(1) }))
+      .query(async ({ ctx, input }) => {
+        const phaseRepo = requirePhaseRepository(ctx);
+        const initiativeRepo = requireInitiativeRepository(ctx);
+        const projectRepo = requireProjectRepository(ctx);
+        const branchManager = requireBranchManager(ctx);
+
+        const phase = await phaseRepo.findById(input.phaseId);
+        if (!phase) {
+          throw new TRPCError({ code: 'NOT_FOUND', message: `Phase '${input.phaseId}' not found` });
+        }
+        if (phase.status !== 'pending_review') {
+          throw new TRPCError({ code: 'BAD_REQUEST', message: `Phase is not pending review (status: ${phase.status})` });
+        }
+
+        const initiative = await initiativeRepo.findById(phase.initiativeId);
+        if (!initiative?.mergeTarget) {
+          throw new TRPCError({ code: 'BAD_REQUEST', message: 'Initiative has no merge target' });
+        }
+
+        const initBranch = initiativeBranchName(initiative.mergeTarget);
+        const phBranch = phaseBranchName(initBranch, phase.name);
+
+        const projects = await projectRepo.findProjectsByInitiativeId(phase.initiativeId);
+        let rawDiff = '';
+
+        for (const project of projects) {
+          const clonePath = await ensureProjectClone(project, ctx.workspaceRoot!);
+          const diff = await branchManager.diffBranches(clonePath, initBranch, phBranch);
+          if (diff) {
+            rawDiff += diff + '\n';
+          }
+        }
+
+        return {
+          phaseName: phase.name,
+          sourceBranch: phBranch,
+          targetBranch: initBranch,
+          rawDiff,
+        };
+      }),
+
+    approvePhaseReview: publicProcedure
+      .input(z.object({ phaseId: z.string().min(1) }))
+      .mutation(async ({ ctx, input }) => {
+        const orchestrator = requireExecutionOrchestrator(ctx);
+        await orchestrator.approveAndMergePhase(input.phaseId);
+        return { success: true };
+      }),
  };
 }
--- a/src/trpc/routers/proposal.ts
+++ b/src/trpc/routers/proposal.ts
@@ -1,189 +0,0 @@
-/**
- * Proposal Router — CRUD + accept/dismiss workflows
- */
-
-import { TRPCError } from '@trpc/server';
-import { z } from 'zod';
-import type { ProcedureBuilder } from '../trpc.js';
-import type { TRPCContext } from '../context.js';
-import type { Proposal } from '../../db/schema.js';
-import {
-  requireProposalRepository,
-  requirePageRepository,
-  requirePhaseRepository,
-  requireTaskRepository,
-  requireAgentManager,
-} from './_helpers.js';
-import { markdownToTiptapJson } from '../../agent/markdown-to-tiptap.js';
-
-/**
- * Accept a single proposal: apply side effects based on targetType.
- */
-async function applyProposal(proposal: Proposal, ctx: TRPCContext): Promise<string | void> {
-  switch (proposal.targetType) {
-    case 'page': {
-      if (!proposal.targetId || !proposal.content) break;
-      const pageRepo = requirePageRepository(ctx);
-      const tiptapJson = markdownToTiptapJson(proposal.content);
-      await pageRepo.update(proposal.targetId, {
-        content: JSON.stringify(tiptapJson),
-        title: proposal.title,
-      });
-      ctx.eventBus.emit({
-        type: 'page:updated',
-        timestamp: new Date(),
-        payload: { pageId: proposal.targetId, initiativeId: proposal.initiativeId, title: proposal.title },
-      });
-      break;
-    }
-    case 'phase': {
-      const phaseRepo = requirePhaseRepository(ctx);
-      const meta = proposal.metadata ? JSON.parse(proposal.metadata) : {};
-      const tiptapContent = proposal.content ? JSON.stringify(markdownToTiptapJson(proposal.content)) : undefined;
-      const created = await phaseRepo.create({
-        id: meta.fileId ?? undefined,
-        initiativeId: proposal.initiativeId,
-        name: proposal.title,
-        content: tiptapContent,
-      });
-      return created.id;
-    }
-    case 'task': {
-      const taskRepo = requireTaskRepository(ctx);
-      const meta = proposal.metadata ? JSON.parse(proposal.metadata) : {};
-      await taskRepo.create({
-        initiativeId: proposal.initiativeId,
-        phaseId: meta.phaseId ?? null,
-        parentTaskId: meta.parentTaskId ?? null,
-        name: proposal.title,
-        description: proposal.content ?? undefined,
-        category: meta.category ?? 'execute',
-        type: meta.type ?? 'auto',
-      });
-      break;
-    }
-  }
-}
-
-/**
- * After every accept/dismiss, check if all proposals for the agent are resolved.
- * If so, auto-dismiss the agent.
- */
-async function maybeAutoDismiss(agentId: string, ctx: TRPCContext): Promise<void> {
-  const proposalRepo = requireProposalRepository(ctx);
-  const pendingCount = await proposalRepo.countByAgentIdAndStatus(agentId, 'pending');
-  if (pendingCount === 0) {
-    try {
-      const agentManager = requireAgentManager(ctx);
-      await agentManager.dismiss(agentId);
-    } catch {
-      // Agent manager not available or agent already dismissed — not critical
-    }
-  }
-}
-
-export function proposalProcedures(publicProcedure: ProcedureBuilder) {
-  return {
-    listProposals: publicProcedure
-      .input(z.object({
-        agentId: z.string().min(1).optional(),
-        initiativeId: z.string().min(1).optional(),
-      }))
-      .query(async ({ ctx, input }) => {
-        const repo = requireProposalRepository(ctx);
-        if (input.agentId) {
-          return repo.findByAgentId(input.agentId);
-        }
-        if (input.initiativeId) {
-          return repo.findByInitiativeId(input.initiativeId);
-        }
-        throw new TRPCError({
-          code: 'BAD_REQUEST',
-          message: 'Either agentId or initiativeId is required',
-        });
-      }),
-
-    acceptProposal: publicProcedure
-      .input(z.object({ id: z.string().min(1) }))
-      .mutation(async ({ ctx, input }) => {
-        const repo = requireProposalRepository(ctx);
-        const proposal = await repo.findById(input.id);
-        if (!proposal) {
-          throw new TRPCError({ code: 'NOT_FOUND', message: `Proposal '${input.id}' not found` });
-        }
-        if (proposal.status !== 'pending') {
-          throw new TRPCError({ code: 'BAD_REQUEST', message: `Proposal is already ${proposal.status}` });
-        }
-        await applyProposal(proposal, ctx);
-        const updated = await repo.update(input.id, { status: 'accepted' });
-        await maybeAutoDismiss(proposal.agentId, ctx);
-        return updated;
-      }),
-
-    dismissProposal: publicProcedure
-      .input(z.object({ id: z.string().min(1) }))
-      .mutation(async ({ ctx, input }) => {
-        const repo = requireProposalRepository(ctx);
-        const proposal = await repo.findById(input.id);
-        if (!proposal) {
-          throw new TRPCError({ code: 'NOT_FOUND', message: `Proposal '${input.id}' not found` });
-        }
-        if (proposal.status !== 'pending') {
-          throw new TRPCError({ code: 'BAD_REQUEST', message: `Proposal is already ${proposal.status}` });
-        }
-        const updated = await repo.update(input.id, { status: 'dismissed' });
-        await maybeAutoDismiss(proposal.agentId, ctx);
-        return updated;
-      }),
-
-    acceptAllProposals: publicProcedure
-      .input(z.object({ agentId: z.string().min(1) }))
-      .mutation(async ({ ctx, input }) => {
-        const repo = requireProposalRepository(ctx);
-        const pending = await repo.findByAgentIdAndStatus(input.agentId, 'pending');
-        let successCount = 0;
-        let failedCount = 0;
-        const errorMessages: string[] = [];
-        for (const proposal of pending) {
-          try {
-            await applyProposal(proposal, ctx);
-            await repo.update(proposal.id, { status: 'accepted' });
-            successCount++;
-          } catch (err) {
-            failedCount++;
-            const message = err instanceof Error ? err.message : String(err);
-            errorMessages.push(`${proposal.title}: ${message}`);
-          }
-        }
-        // Second pass: create phase dependencies
-        const phaseProposals = pending.filter(p => p.targetType === 'phase');
-        if (phaseProposals.length > 0) {
-          const phaseRepo = requirePhaseRepository(ctx);
-          for (const proposal of phaseProposals) {
-            const meta = proposal.metadata ? JSON.parse(proposal.metadata) : {};
-            const phaseId = meta.fileId;
-            if (!phaseId || !Array.isArray(meta.dependencies)) continue;
-            for (const depFileId of meta.dependencies) {
-              try {
-                await phaseRepo.createDependency(phaseId, depFileId);
-              } catch (err) {
-                errorMessages.push(`Dep ${proposal.title}: ${err instanceof Error ? err.message : String(err)}`);
-              }
-            }
-          }
-        }
-
-        await maybeAutoDismiss(input.agentId, ctx);
-        return { accepted: successCount, failed: failedCount, errors: errorMessages };
-      }),
-
-    dismissAllProposals: publicProcedure
-      .input(z.object({ agentId: z.string().min(1) }))
-      .mutation(async ({ ctx, input }) => {
-        const repo = requireProposalRepository(ctx);
-        await repo.updateManyByAgentIdAndStatus(input.agentId, 'pending', { status: 'dismissed' });
-        await maybeAutoDismiss(input.agentId, ctx);
-        return { success: true };
-      }),
-  };
-}
--- a/src/trpc/subscriptions.ts
+++ b/src/trpc/subscriptions.ts
@@ -49,6 +49,9 @@ export const ALL_EVENT_TYPES: DomainEventType[] = [
  'phase:started',
  'phase:completed',
  'phase:blocked',
+  'phase:pending_review',
+  'phase:merged',
+  'task:merged',
  'merge:queued',
  'merge:started',
  'merge:completed',
@@ -56,6 +59,8 @@ export const ALL_EVENT_TYPES: DomainEventType[] = [
  'page:created',
  'page:updated',
  'page:deleted',
+  'changeset:created',
+  'changeset:reverted',
 ];

 /**
@@ -80,10 +85,13 @@ export const TASK_EVENT_TYPES: DomainEventType[] = [
  'task:dispatched',
  'task:completed',
  'task:blocked',
+  'task:merged',
  'phase:queued',
  'phase:started',
  'phase:completed',
  'phase:blocked',
+  'phase:pending_review',
+  'phase:merged',
 ];

 /**
				`@@ -0,0 +1 @@`
				`ALTER TABLE initiatives ADD COLUMN execution_mode TEXT NOT NULL DEFAULT 'review_per_phase';`