setup

Setting Up ruv-swarm Hooks

Quick Start

1. Initialize with Hooks

npx claude-flow init --hooks

This automatically creates:

• .claude/settings.json with hook configurations
• Hook command documentation
• Default hook handlers

2. Test Hook Functionality

# Test pre-edit hook
npx claude-flow hook pre-edit --file test.js

# Test session summary
npx claude-flow hook session-end --summary

3. Customize Hooks

Edit .claude/settings.json to customize:

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "^Write$",
        "hooks": [{
          "type": "command",
          "command": "npx claude-flow hook pre-write --file '${tool.params.file_path}'"
        }]
      }
    ]
  }
}

Hook Response Format

Hooks return JSON with:

• continue: Whether to proceed (true/false)
• reason: Explanation for decision
• metadata: Additional context

Example blocking response:

{
  "continue": false,
  "reason": "Protected file - manual review required",
  "metadata": {
    "file": ".env.production",
    "protection_level": "high"
  }
}

Performance Tips

• Keep hooks lightweight (< 100ms)
• Use caching for repeated operations
• Batch related operations
• Run non-critical hooks asynchronously

Debugging Hooks

# Enable debug output
export CLAUDE_FLOW_DEBUG=true

# Test specific hook
npx claude-flow hook pre-edit --file app.js --debug

Common Patterns

Auto-Format on Save

Already configured by default for common file types.

Protected File Detection

{
  "matcher": "^(Write|Edit)$",
  "hooks": [{
    "type": "command",
    "command": "npx claude-flow hook check-protected --file '${tool.params.file_path}'"
  }]
}

Automatic Testing

{
  "matcher": "^Write$",
  "hooks": [{
    "type": "command",
    "command": "test -f '${tool.params.file_path%.js}.test.js' && npm test '${tool.params.file_path%.js}.test.js'"
  }]
}