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hook-development

Implement Claude Code plugin hooks to enforce policies and validate tool usage.

Updated Mar 16, 2026
Search Tags:#automation#security#plugin#claude-code#hook#tool-use
One-click install
npx skills add https://github.com/liminal-ai/code-steward --skill hook-development-liminal-ai
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: hook-development
Source: https://github.com/liminal-ai/code-steward/tree/main/.claude/plugins/plugin-dev/skills/hook-development
Command: npx skills add https://github.com/liminal-ai/code-steward --skill hook-development-liminal-ai

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This skill enables developers to create and manage Claude Code plugin hooks that enforce policies, validate tool usage, load project context, and coordinate automated workflows across events like PreToolUse, PostToolUse, Stop, and SessionStart.

Core Features & Use Cases

  • Comprehensive guidance for implementing prompt-based and command hooks across multiple events and plugin configurations.
  • Supports plugin-wide hooks via hooks.json as well as session-level context loading with example scripts, audits, and debugging patterns.
  • Real-world patterns include security validations, context loading, cross-event coordination, and troubleshooting guidance for Claude Code plugins.

Quick Start

Begin by creating a minimal PreToolUse hook example and run Claude Code in debug mode to verify the hook loads.

Frequently Asked Questions about hook-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create Claude Code hooks to validate tool usage and enforce security policies?▼

Claude Code hooks validate tool usage and enforce security policies by implementing prompt-based and command hooks across events like PreToolUse and PostToolUse. You configure them using a hooks.json file to intercept and audit actions.

What is the difference between PreToolUse, PostToolUse, Stop, and SessionStart hooks?▼

PreToolUse and PostToolUse hooks intercept and validate tool execution, Stop hooks trigger when a session ends, and SessionStart hooks load project context. They coordinate automated workflows across the Claude Code lifecycle.

How do I debug Claude Code plugin hooks when they fail to load or execute?▼

Debug Claude Code plugin hooks by running Claude Code in debug mode to verify hook loading. Use provided troubleshooting patterns and audit scripts to identify configuration errors in your hooks.json file.

Can I run multiple Claude Code hooks in parallel across different plugin events?▼

Yes, Claude Code hooks support parallel execution across multiple events and plugin configurations. You can coordinate cross-event workflows while maintaining safe, maintainable integrations through careful validation.

How do I ensure Claude Code hooks are portable across different project environments?▼

Ensure hook portability by using the ${CLAUDE_PLUGIN_ROOT} variable in your scripts and configuration. This prevents hardcoded paths and maintains safe, maintainable plugin integrations across environments.

What are the limitations of using prompt-based hooks versus command hooks in Claude Code?▼

Prompt-based hooks rely on Claude interpreting instructions for context loading, while command hooks execute scripts for strict security validations. Command hooks offer deterministic enforcement, whereas prompt hooks offer flexible reasoning.

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