hookify — Agent Skill
by anthropics · Updated
Easily create custom hooks to prevent unwanted behaviors by analyzing conversation patterns or from explicit instructions. Define rules via simple markdown files.
At a glance
hookify is an Agent Skill by anthropics in the Automation & Workflow category. In Claude Code it installs with `/plugin install hookify@claude-plugins-official` after adding the anthropics/claude-plugins-official marketplace; other assistants use its SKILL.md instructions as rules. Its source repository has 45,210 GitHub stars (as of Oct 28, 2026).
How to install hookify in your AI client
Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.
How to install hookify in Claude CodeAnthropic's agentic CLI
Add the marketplace
claude/plugin marketplace add anthropics/claude-plugins-officialInstall the skill
claude/plugin install hookify@claude-plugins-officialUse it
These are slash commands for a Claude Code session, not your shell. Claude auto-invokes the skill when your request matches its description — or type its slash command if it exposes one.
How to install hookify in Claude DesktopDesktop app (MCP config)
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Add the SKILL.md to your Skills folder
Settings → Capabilities → Skills → add the folder containing SKILL.md. Claude picks it up automatically.
How to install hookify in CursorAI-first code editor
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Convert to a Cursor rule
Create .cursor/rules/hookify.mdc and paste the SKILL.md body. Set `alwaysApply` or a glob so the Agent loads it in context.
How to install hookify in Codex CLIOpenAI coding agent
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Reference in AGENTS.md
Add the skill's instructions (or a link) to AGENTS.md at your repo root — Codex reads it on every run.
How to install hookify in WindsurfCodeium's agentic IDE
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
How to install hookify in ClineVS Code autonomous agent
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
How to install hookify in VS CodeCopilot / MCP support
Clone the source
bashgit clone https://github.com/anthropics/claude-plugins-official.gitFind the skill
It lives in claude-plugins-official/plugins/hookify — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
Documentation
Full READMEHookify Plugin
Easily create custom hooks to prevent unwanted behaviors by analyzing conversation patterns or from explicit instructions.
Overview
The hookify plugin makes it simple to create hooks without editing complex hooks.json files. Instead, you create lightweight markdown configuration files that define patterns to watch for and messages to show when those patterns match.
Key features:
- 🎯 Analyze conversations to find unwanted behaviors automatically
- 📝 Simple markdown configuration files with YAML frontmatter
- 🔍 Regex pattern matching for powerful rules
- 🚀 No coding required - just describe the behavior
- 🔄 Easy enable/disable without restarting
Quick Start
1. Create Your First Rule
/hookify Warn me when I use rm -rf commandsThis analyzes your request and creates .claude/hookify.warn-rm.local.md.
2. Test It Immediately
No restart needed! Rules take effect on the very next tool use.
Ask Claude to run a command that should trigger the rule:
Run rm -rf /tmp/testExcerpt — the full document is on GitHub.
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