hook-development

To create Claude Code plugin hooks, you define event triggers like PreToolUse or PostToolUse in a hooks.json file. This enables event-driven automation by executing configured commands or prompts when specific plugin events occur during a session.

Yes, you can use command hooks to execute bash commands for deterministic checks in Claude Code. This allows you to perform tool validation and integrate with external tools before or after core plugin events execute.

Prompt-based hooks use LLM-driven decision making for context-aware tool validation. Instead of rigid rules, the hook evaluates the tool usage context dynamically, allowing complex reasoning to determine if an action should proceed or be blocked.

Yes, Python is a required dependency for implementing Claude Code plugin hooks using this Skill. You also need familiarity with the Claude Code architecture to properly configure and manage event-driven workflows within your plugins.

The best way to manage hook configurations is by defining them within a hooks.json file. This allows you to specify plugin-specific settings, map events to appropriate commands or prompts, and enforce automation policies consistently across sessions.

Use prompt-based hooks when you need LLM-driven decision making and complex reasoning for context-aware validation. Use command hooks when you require deterministic checks, bash execution, or integration with external tools that do not need AI reasoning.