Hook Development for Claude Code

概要

The Hook Development skill provides comprehensive patterns and best practices for extending Claude Code's capabilities through event-driven automation. It enables developers to implement sophisticated logic across the entire development lifecycle, from validating bash commands before execution (PreToolUse) to ensuring task completion (Stop). By offering standardized templates for both LLM-driven prompt hooks and deterministic bash command hooks, this skill helps users build secure, context-aware, and highly automated development environments.

主な機能

• Portable plugin development using ${CLAUDE_PLUGIN_ROOT}
• Bash command hook integration for deterministic checks
• Environment variable persistence via $CLAUDE_ENV_FILE
• Complete lifecycle event support including SessionStart and Stop
• Prompt-based LLM validation for context-aware reasoning
• 291 GitHub stars

ユースケース

• Automating context loading and environment setup when a Claude session begins
• Enforcing security guardrails by blocking dangerous file operations or system commands
• Verifying that tests pass or builds succeed before allowing Claude to finish a task