What are Claude Code hooks?

Shell commands triggered around tool calls or sessions in Claude Code—block dangers, auto-format, check emails. Config in ~/.claude/settings.json.

How do I install Claude Code hooks?

Edit settings.json with hook arrays, point to scripts. Match tools, read stdin JSON, exit 0/1. Test ruthlessly.

Are Claude Code hooks safe for production?

Safer than unhooked agents—blocks rm -rf bombs. But vet your scripts; bad ones crash sessions.

☁️ Cloud & Infrastructure

Claude Code Hooks: The Undocumented Safety Rails Keeping AI From Wiping Your Repo

Claude Code's hooks are the invisible hand stopping your AI from rm -rf disasters. Buried in settings.json, they're a dev's best friend—or worst-kept secret.

DevTools Feed Apr 11, 2026 4 min read

Claude Code settings.json file open to hooks configuration with Bash matcher

⚡ Key Takeaways

Claude Code hooks silently prevent AI disasters like rm -rf via PreToolUse blocks. 𝕏
PostToolUse auto-formats code, saving tokens and manual drudgery. 𝕏
Buried in docs, they're Git hooks reborn for AI agents—expect copycats soon. 𝕏

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#AI agents #Claude Code hooks #automation pipelines #automation safety #dev productivity #dev safety

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