hooks-design

What problem does it solve? This Skill guides you in designing Claude Code hooks for guaranteed, deterministic execution at specific lifecycle events, enabling robust automation, rule enforcement, and seamless integration with external tools, reducing manual oversight and errors.

Core Features & Use Cases:

• Deterministic Control: Understand when to use hooks for "always" scenarios (e.g., auto-formatting, security checks) versus probabilistic AI responses.
• Event-Driven Automation: Leverage PreToolUse, PostToolUse, SessionStart, and other events to trigger scripts or prompt-based intelligence at precise moments.
• Secure & Efficient Scripting: Learn best practices for writing hook scripts in Bash or Python (using UV for dependencies), ensuring security, performance, and proper communication with Claude.
• Use Case: Implement a hook that automatically formats all Python files after Claude writes or edits them, ensuring consistent code style without manual intervention. Or, create a PreToolUse hook to block dangerous Bash commands, enhancing security.

Quick Start: Use the hooks-design skill to help me create a new hook that automatically runs a linter after Claude edits a file.