2490 Copilot 68c1852b

# GitHub Copilot Setup

Setting up planning-with-files for GitHub Copilot (CLI, VS Code, and Coding Agent).

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## Prerequisites

- GitHub Copilot with hooks support enabled
- For VS Code: Copilot Chat extension v1.109.3+
- For CLI: GitHub Copilot CLI with agent mode
- For Coding Agent: Works automatically with `.github/hooks/`

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## Installation Methods

### Method 1: Repository-Level (Recommended)
Copy both the `.github/hooks/` directory and the `skills/planning-with-files/` directory into your project:

```bash
# Copy hooks (required — Copilot hook configuration and scripts)
cp -r .github/hooks/ your-project/.github/hooks/

# Copy skills (required — templates, session-catchup script, and SKILL.md)
cp -r skills/planning-with-files/ your-project/.github/skills/planning-with-files/

# Make scripts executable (macOS/Linux)
chmod +x your-project/.github/hooks/scripts/*.sh
```

Hooks will auto-activate for all team members. This works across Copilot CLI, VS Code, and the Coding Agent.

### Method 2: Manual Setup
1. Create `.github/hooks/planning-with-files.json`
2. Copy hook scripts to `.github/hooks/scripts/`
3. Copy `skills/planning-with-files/` to `.github/skills/planning-with-files/` (templates, session-catchup script)
4. Ensure all scripts are executable (`chmod +x .github/hooks/scripts/*.sh`)

---

## What the Hooks Do

| Hook | Purpose | Behavior |
|------|---------|----------|
| `sessionStart` | Initialization | Recovers previous context via session-catchup |
| `preToolUse` | Context injection | Reads `task_plan.md` before tool operations |
| `postToolUse` | Update reminders | Prompts to update plan after file edits |
| `agentStop` | Completion check | Verifies if all phases are complete before stopping |

---

## File Structure

```
.github/
└── hooks/
    ├── planning-with-files.json    # Hook configuration
    └── scripts/
        ├── session-start.sh        # Session initialization
        ├── session-start.ps1
        ├── pre-tool-use.sh         # Plan context injection
        ├── pre-tool-use.ps1
        ├── post-tool-use.sh        # Update reminders
        ├── post-tool-use.ps1
        ├── agent-stop.sh           # Completion verification
        └── agent-stop.ps1
```

---

## How It Works

1. **Session starts**: The `session-catchup` script runs. This recovers previous context if you cleared your session.
2. **Before tool use**: The `pre-tool-use` hook injects `task_plan.md` into the context. This keeps goals visible to the agent.
3. **After file edits**: A reminder appears after any write or edit operations. This helps ensure the plan stays updated.
4. **Agent tries to stop**: The `agent-stop` hook checks the phase status in `task_plan.md`. It prevents stopping if tasks remain.

---

## Differences from Claude Code Plugin

- **Hook Configuration**: Claude Code uses `SKILL.md` frontmatter hooks. Copilot uses the `.github/hooks/` JSON configuration file.
- **Stop Hook**: Claude's `Stop` hook corresponds to Copilot's `agentStop`.
- **Planning Files**: Both use the same core files (task_plan.md, findings.md, progress.md).
- **Protocol**: Hook scripts are adapted for Copilot's stdin JSON and stdout JSON protocol.

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## Troubleshooting

- **Hooks not running**: Check file permissions. Ensure the `.github/hooks/` directory is committed to your repository.
- **Scripts failing**: Verify that `bash` and `python3` are available in your system PATH.
- **Windows**: PowerShell scripts (.ps1) are used automatically on Windows systems.
- **VS Code**: You might need to enable hooks in your Copilot Chat extension settings.

---

## Compatibility

This setup works across the entire GitHub Copilot ecosystem:

- GitHub Copilot CLI (terminal)
- VS Code Copilot Chat (agent mode)
- GitHub Copilot Coding Agent (github.com)