Hooks Mastery

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Master the lifecycle of Claude Code by implementing event-driven extensions that execute bash commands or LLM evaluations at specific execution points. This skill equips users with the necessary patterns to build production-ready hooks for tool validation, context enrichment, and environment setup. Whether you need to block specific file modifications, inject dynamic context into user prompts, or automate environment initialization, this guide ensures your hooks follow the official protocol for input handling, exit codes, and configuration structure.

Características Principales

• Implementation patterns for both command-based and LLM-prompted hooks
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• Troubleshooting techniques and configuration management for different project scopes
• Protocol specifications for JSON input/output and exit code behaviors
• Best practices for security, input validation, and shell safety
• Detailed guidance on lifecycle events like PreToolUse, SessionStart, and Stop

Casos de Uso

• Enriching user prompts with dynamic environmental context or system state
• Validating and blocking potentially dangerous tool executions before they occur
• Automating environment setup and dependency management at session start