creating-hooks

Claude Code hooks automate validation and workflow control by configuring event triggers like PreToolUse or PostToolUse. You validate the hook configuration with a Python script before safely registering it in your Claude settings.

Available Claude Code hook events for CLI automation include PreToolUse, PostToolUse, UserPromptSubmit, Stop, and SessionStart. These events enable context injection, tool validation, and workflow control during your sessions.

Yes, you can use Python to validate and register Claude Code hooks safely. The skill provides Python scripts like validate_hook.py to check configurations and add_hook_to_settings.py to safely inject them into your settings file.

You test Claude Code hooks by running the validate_hook.py Python script with your hook configuration JSON. This verifies the structural integrity of event matchers and commands before you commit them to your settings file.

A standard Claude Code hook configuration enforces a SKILL.md frontmatter, optional resources directories, and clear dependency metadata. The structure maps event matchers to specific command hooks for reliable execution.

Setting up Claude Code hooks does not require manual JSON editing of settings files. You can use the add_hook_to_settings.py script to safely parse and register hook configurations into your settings file automatically without syntax errors.