Implements event-driven automation and validation patterns for Claude Code plugin development.
The Hook Development skill provides a comprehensive framework for building sophisticated, event-driven extensions for Claude Code. It enables developers to intercept and react to lifecycle events—such as tool execution, session starts, and task completion—using either deterministic bash commands or flexible LLM-powered prompt hooks. By providing standardized implementation patterns for PreToolUse, Stop, and SessionStart events, this skill allows for robust security enforcement, automated context loading, and high-fidelity validation of AI-generated actions within any development environment.
Key Features
01Secure implementation patterns for input and path validation
02Prompt-based hooks for context-aware LLM validation
03Comprehensive lifecycle event support (PreToolUse, Stop, SessionStart, etc.)
04Environment variable persistence via CLAUDE_ENV_FILE
050 GitHub stars
06Command hooks for deterministic bash-based automation
Use Cases
01Enforcing security policies by blocking dangerous CLI commands or sensitive file access
02Verifying task completion and code quality standards before the agent exits
03Automating project context loading and environment setup at session start
