Can hooks interact with external APIs?

Yes, hooks can trigger MCP calls, HTTP requests, or WebSocket communications to integrate Claude with external services or state machines.

What are Claude Code hooks?

Hooks are specialized event triggers in the Claude Code CLI that allow scripts to run before or after tools, during session starts, or when the agent stops.

How do I block a tool execution using a hook?

Use the PreToolUse hook and return an exit code 2 to block the action and send the error message (stderr) back to Claude.

What is the benefit of the Orchestration Pattern?

The Orchestration Pattern provides high-reliability (up to 100% success) for forcing Claude to evaluate specific skills or route tasks to subagents.

Claude Code Hook Templates

Name: Claude Code Hook Templates
Author: chkim-su

bychkim-su

開発者ツール

Streamlines the implementation of automation, validation, and workflow gates using standardized Claude Code hook patterns.

概要

Claude Code Hook Templates provide a production-ready framework for extending the Claude Code CLI through specialized event hooks. This skill enables developers to implement sophisticated automation workflows, such as blocking dangerous commands (Gates), triggering post-tool actions like linting or auto-committing (Side Effects), and integrating with external APIs via MCP. By offering battle-tested orchestration patterns and reliable state management strategies, it ensures seamless integration between Claude's tool usage and your local development environment, making AI-driven development safer and more efficient.

主な機能

Offers comprehensive debugging guides for hook execution and exit code handling
Provides orchestration patterns for forced skill activation and agent routing
Implements Gate patterns to block dangerous commands or require prerequisites
Includes specialized templates for session-start context injection and state management
0 GitHub stars
Automates side effects like linting, formatting, and git commits via PostToolUse hooks

ユースケース

Building complex agent-to-agent workflows through hook-based orchestration and routing
Enforcing security policies by blocking unauthorized file modifications or shell commands
Automating repetitive development tasks like running tests immediately after code generation

概要

主な機能

Offers comprehensive debugging guides for hook execution and exit code handling
Provides orchestration patterns for forced skill activation and agent routing
Implements Gate patterns to block dangerous commands or require prerequisites
Includes specialized templates for session-start context injection and state management
0 GitHub stars
Automates side effects like linting, formatting, and git commits via PostToolUse hooks

ユースケース

Building complex agent-to-agent workflows through hook-based orchestration and routing
Enforcing security policies by blocking unauthorized file modifications or shell commands
Automating repetitive development tasks like running tests immediately after code generation