Hook Development

Create and validate Claude Code plugin hooks for tool-use events.

6|Updated Dec 30, 2025
One-click install
npx skills add https://github.com/pur3v4d3r/pur3-pkb-codebase --skill hook-development-pur3v4d3r
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Hook Development
Source: https://github.com/pur3v4d3r/pur3-pkb-codebase/tree/main/.claude/skills/hook-development
Command: npx skills add https://github.com/pur3v4d3r/pur3-pkb-codebase --skill hook-development-pur3v4d3r

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Hook Development provides a structured framework for creating and validating Claude Code plugin hooks, enabling safe, automated tool usage and event-driven workflows.

Core Features & Use Cases

  • Supports PreToolUse, PostToolUse, Stop, SessionStart and other hook events
  • Promotes advanced prompt-based hooks API for flexible, context-aware validation
  • Includes templates, patterns, and best practices for secure automation

Quick Start

Describe a new PreToolUse hook that validates a tool call and responds with a permission decision.

Frequently Asked Questions about Hook Development

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

FAQPage Schema
How do I create a Claude Code hook to validate tool calls?▼

To create a Claude Code hook for tool validation, implement a PreToolUse hook using prompt-based or command-based APIs to intercept and validate tool calls, returning a permission decision to enforce safe automation.

What events are available for Claude Code plugin hooks?▼

Claude Code plugin hooks support events including PreToolUse, PostToolUse, Stop, and SessionStart, enabling developers to automate workflows and enforce safety checks at various stages of the execution lifecycle.

How do I use environment variables and paths safely in Claude Code hooks?▼

Use the CLAUDE_PLUGIN_ROOT environment variable for portable path references in Claude Code hooks to ensure secure integration, validating tool usage and loading memory without exposing sensitive environment data.

Can I build both prompt-based and command-based hooks for Claude Code automation?▼

Yes, Claude Code supports both prompt-based and command-based hooks, allowing developers to choose between context-aware validation prompts or direct command execution for automating workflows and enforcing security policies.

What are the best practices for testing Claude Code hooks?▼

Best practices for testing Claude Code hooks include validating tool-use decisions, verifying memory loading behavior, and ensuring secure integration with CLAUDE_PLUGIN_ROOT paths across all supported plugin events.

Why is my Claude Code hook not triggering on SessionStart or Stop events?▼

Claude Code hooks may fail to trigger if event names are misconfigured or if portable path references using CLAUDE_PLUGIN_ROOT are invalid, so verify event names like SessionStart and Stop and test your hook configuration.