Create Hook

CommunityPopular

am-will

create-hook

Create or update Codex hooks for global or project scope by asking for scope and hook type when ambiguous, then writing the hook config, scripts, and any required feature flag config.

Overview

Publisher	am-will
Repository	`codex-skills`
Skill name	`create-hook`
Stars	1K
Forks	60
Bundled files	2
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
2 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by am-will on GitHub. Read the source before you install it.

Installation

Install the Create Hook AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/am-will/codex-skills.git /tmp/codex-skills
mkdir -p .claude/skills
cp -r /tmp/codex-skills/skills/create-hook .claude/skills/create-hook

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Create Hook in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Create Hook on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Create Hook is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Create Hook

Use when the user wants to add Codex hooks and explains the behavior they want.

Workflow

Determine scope.
- If the user says global, use the personal/home scope.
- If the user says project, use the repo scope.
- If scope is missing or unclear, ask: Should this be global or project-scoped?
Determine hook type.
- If the event is missing or unclear, ask which hook they want:
  - SessionStart
  - UserPromptSubmit
  - PreToolUse
  - PostToolUse
  - Stop
- If the user wants more than one, keep them separate unless they explicitly want shared behavior.
Determine behavior.
- Ask what the hook should do if the intent is not already clear.
- Prefer the smallest deterministic script that satisfies the request.
Write the hook files in the chosen scope.
- Global: ~/.codex/hooks.json and ~/.codex/hooks/
- Project: <repo>/.codex/hooks.json and <repo>/.codex/hooks/
- Keep script paths explicit and relative where practical.
Enable the feature flag if the target Codex build still gates hooks.
- Set [features] codex_hooks = true in the relevant config.toml.
Keep the hook output clear.
- Use statusMessage for a short visible signal.
- For logging hooks, write to a repo-local or home-local log file.
- For blocking hooks, return a nonzero exit only when the hook should actually stop the tool.
Verify the result.
- Run a command that should trigger the hook.
- Confirm the log, output, or blocking behavior matches the requested scope and event.

Practical defaults

Use PreToolUse for prevention.
Use PostToolUse for logging, formatting, or test follow-up.
Use UserPromptSubmit for prompt shaping and injected context.
Use SessionStart for startup context.
Use Stop for end-of-turn checks.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

agents/openai.yaml1 KB
references/hook-scope.md1 KB

Frequently asked questions

What does the Create Hook AI skill do?

Create or update Codex hooks for global or project scope by asking for scope and hook type when ambiguous, then writing the hook config, scripts, and any required feature flag config.

Why use Create Hook on TypingMind?

Because you install it once and use it with any model. Create Hook is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Create Hook in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/am-will/codex-skills/tree/main/skills/create-hook. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Create Hook?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Create Hook?

As many as you like. As long as a model supports skills, you can use Create Hook with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Create Hook AI skill free?

It is published on GitHub by am-will. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Create Hook

Workflow

Practical defaults

Bundled files

Frequently asked questions

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