Hook Development for Claude Code FAQs

Question 1

Can hooks be used to set up my development environment?

Accepted Answer

Yes, the SessionStart hook is ideal for loading project context, setting environment variables via $CLAUDE_ENV_FILE, and preparing the workspace when a session begins.

Question 2

Which hook should I use to stop Claude from running a dangerous command?

Accepted Answer

Use the PreToolUse hook with a matcher for 'Bash' or specific tool names to evaluate and potentially deny the operation before it executes.

Question 3

Are plugin hooks different from user settings hooks?

Accepted Answer

The core logic is the same, but plugin hooks are defined in a hooks/hooks.json file using a wrapper format, while user hooks are defined directly at the top level of .claude/settings.json.

Question 4

What is the difference between a prompt-based hook and a command hook?

Accepted Answer

Prompt-based hooks use LLM reasoning to make decisions based on natural language prompts, while command hooks execute deterministic bash scripts for tasks like file validation or external tool integration.

Question 5

How do I target specific tools with my hooks?

Accepted Answer

You can use 'matchers' in your hook configuration to target exact tool names, use regex for groups of tools (like MCP plugins), or use wildcards to apply hooks to all operations.

Hook Development for Claude Code

주요 기능

사용 사례

Hook Development for Claude Code

주요 기능

사용 사례