Claude Code Hooks Library

7 production-ready hooks for automated quality control, security scanning, testing, and environment setup. Execute custom automation at key points in your Claude Code workflow following official hooks specifications.

7 Production Hooks
3,000+ Lines of Code
100% Ready to Use

What are Hooks?

Hooks are automated scripts that execute at specific events in Claude Code's workflow. They enable:

  • Automated Quality Control: Run linters, tests, and security scans automatically
  • Environment Setup: Initialize development environment on session start
  • Code Formatting: Auto-format code after edits
  • Security: Prevent commits with exposed secrets or vulnerable dependencies
  • Breaking Change Detection: Warn before committing API-breaking changes

Available Hooks

auto-format

PostToolUse

A PostToolUse hook that automatically formats code after file edits to maintain consistent code s...

Prettier support Black (Python) gofmt (Go)
565 lines Bash

breaking-change-detection

PreToolUse

A PreToolUse hook that detects breaking API changes before commits to prevent unintentional break...

API signature comparison Export tracking Parameter change detection
540 lines Bash

dependency-check

PreToolUse

A PreToolUse hook that checks for vulnerable dependencies before commits to prevent security vuln...

npm audit pip-audit bundle audit
600 lines Bash

pre-commit-linting

PreToolUse

Automatically run linters before committing code to catch issues early.

300 lines Bash

security-scan

PreToolUse

A PreToolUse hook that scans for secrets, API keys, and sensitive data before commits to prevent ...

AWS key detection API token scanning Private key detection
450 lines Bash

session-setup

SessionStart

A SessionStart hook that automatically initializes your development environment when starting a C...

.env file loading Dependency checking Database verification
580 lines Bash

test-runner

PreToolUse

A PreToolUse hook that automatically runs tests before commits to ensure code quality and prevent...

Jest support pytest support RSpec support
520 lines Bash

How to Use Hooks

1

Copy Hooks to Your Project

Copy the hooks you need to your project's .claude/hooks/ directory.

cp -r hooks/security-scan /path/to/project/.claude/hooks/
cp -r hooks/test-runner /path/to/project/.claude/hooks/
2

Configure in Settings

Add hook configuration to .claude/settings.json in your project.

{
  "hooks": {
    "PreToolUse": [{
      "matcher": "Bash",
      "hooks": [{
        "type": "command",
        "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/security-scan/hook.sh"
      }]
    }]
  }
}
3

Make Scripts Executable

Ensure hook scripts have execute permissions.

chmod +x .claude/hooks/*/hook.sh

That's it! Hooks will now execute automatically at configured events.

Recommended Configurations

Minimal Setup

Security + Testing - Essential quality control

security-scan test-runner session-setup

Ideal for: All projects

Full Stack Development

Complete automation suite

security-scan test-runner dependency-check auto-format session-setup

Ideal for: Large applications

API/Library Development

Breaking change detection + quality

breaking-change-detection test-runner auto-format

Ideal for: Libraries, APIs, SDKs

Resources

Official Hooks Documentation

Claude Code's official guide to creating and using hooks

GitHub Repository

Access the source code, contribute hooks, and stay updated

Start Using Hooks Today

Download hooks and integrate quality control into your workflow in minutes.

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