Hook Development

What problem does it solve?

This Skill eliminates manual validation and repetitive checks by automatically executing custom logic in response to Claude Code events.

Core Features & Use Cases

• Event-Driven Automation: Execute scripts or prompts when tools are used, sessions start/end, or agents stop.

Core Features & Use Cases

• Tool Validation: Block dangerous commands and validate file writes before execution.
• Context Loading: Automatically detect project types and set environment variables when sessions begin.
• Use Case: Automatically validate every bash command to prevent accidental rm -rf operations or detect privilege escalation attempts.

Quick Start

Create a PreToolUse hook to validate bash commands by adding this configuration to your plugin's hooks.json file.

hooks: { "PreToolUse": [ { "matcher": "Bash", "hooks": [ { "type": "prompt", "prompt": "Check if this bash command contains dangerous operations like rm -rf, sudo, or network commands without consent.