# Team Collaboration Features

**Completed**: 2026-01-22
**Branch**: `042-team-collaboration`
**GitHub Epic**: [#601](https://github.com/seanbarlow/doit/issues/601)

## Overview

Enable multiple developers to collaborate effectively on the same doit-managed project by sharing project memory (constitution, roadmap, specifications) and receiving notifications when team members make changes. This creates a unified development experience where all team members have consistent context regardless of when they joined the project or last synchronized.

## Requirements Implemented

| ID | Description | Status |
|----|-------------|--------|
| US1 | Share Project Memory with Team | Done |
| US2 | Receive Change Notifications | Done |
| US3 | Resolve Memory Conflicts | Done |
| US4 | Manage Team Access | Done |

## Technical Details

### Architecture

- **Git-Based Synchronization**: Uses Git as the sync mechanism (no external services required)
- **File-Based Storage**: Team config in `.doit/config/team.yaml`, state in `.doit/state/`
- **Local Notifications**: File watching via `watchdog` library, batched delivery (5-minute intervals)
- **Advisory Access Control**: Permission checks at CLI level (read-only vs read-write)

### Key Components

| Component | Purpose |
|-----------|---------|
| `TeamService` | Team management (init, add/remove members, permissions) |
| `SyncService` | Git-based memory file synchronization |
| `NotificationService` | Change notifications with batching |
| `FileWatcherService` | Watchdog-based file monitoring |
| `ConflictService` | Conflict detection and resolution |
| `AccessService` | Access control and permission checking |

### CLI Commands

```
doit team init              # Initialize team collaboration
doit team add <email>       # Add a team member
doit team remove <email>    # Remove a team member
doit team list              # List all members
doit team sync              # Sync memory files via Git
doit team status            # Show sync status
doit team config            # View/update team settings
doit team notify list       # List notifications
doit team notify read       # Mark notifications as read
doit team notify config     # Configure notification settings
doit team conflict list     # List conflicts
doit team conflict show     # Show conflict details
doit team conflict resolve  # Resolve a conflict (--keep-local, --keep-remote, --manual)
```

## Files Changed

### New Files

- `src/doit_cli/models/team_models.py` - Data models (Team, TeamMember, SharedMemory, etc.)
- `src/doit_cli/models/team_errors.py` - Comprehensive error hierarchy
- `src/doit_cli/services/team_config.py` - Configuration loader/validator
- `src/doit_cli/services/git_utils.py` - Git subprocess operations
- `src/doit_cli/services/team_service.py` - Team management service
- `src/doit_cli/services/sync_service.py` - Memory synchronization via Git
- `src/doit_cli/services/notification_service.py` - Change notifications
- `src/doit_cli/services/file_watcher_service.py` - Watchdog-based file monitoring
- `src/doit_cli/services/conflict_service.py` - Conflict detection/resolution
- `src/doit_cli/services/access_service.py` - Access control service
- `src/doit_cli/cli/team_command.py` - CLI commands
- `tests/integration/test_team_workflow.py` - Integration tests

### Modified Files

- `pyproject.toml` - Added `watchdog>=3.0.0` dependency
- `src/doit_cli/main.py` - Registered team command

## Testing

### Automated Tests

- **Integration tests**: 18 passed in `tests/integration/test_team_workflow.py`
- Test coverage includes:
  - Team initialization
  - Member management (add, remove, list)
  - Status and config commands
  - Notification commands
  - Conflict commands
  - Uninitialized team handling

### Manual Verification

- CLI commands work correctly (`doit team --help`)
- Team initialization creates proper config structure
- Member management functions properly
- Table and JSON output formats work

## Related Issues

- Epic: [#601](https://github.com/seanbarlow/doit/issues/601) - Team Collaboration Features

---

*Generated by `/doit.checkin`*
