Hook Development for Claude Code Plugins
anthropics/claude-plugins-official
Explains how to write Claude Code plugin hooks, both prompt-based checks and bash commands, for events such as PreToolUse, Stop and SessionStart.
Claude Code hooks configuration specialist. An agent skill from aiskillstore/marketplace.
Install Claude Hooks
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace claude-hooks --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/89jobrien/claude-hooks .claude/skills/claude-hooks && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .claude/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooksType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace claude-hooks --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/89jobrien/claude-hooks .agents/skills/claude-hooks && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .agents/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace claude-hooks --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/89jobrien/claude-hooks .cursor/skills/claude-hooks && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .cursor/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/89jobrien/claude-hooks--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace claude-hooks --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/89jobrien/claude-hooks .gemini/skills/claude-hooks && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .gemini/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace claude-hooksInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/89jobrien/claude-hooks .github/skills/claude-hooks && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .github/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill claude-hooks -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace claude-hooks --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/89jobrien/claude-hooks .opencode/skills/claude-hooks && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "claude-hooks" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/claude-hooks into .opencode/skills/claude-hooks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-hooks", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
claude-hooks- GitHub stars
- 430
- Used in
- 1 other repo
- Token cost
- ~344 tokens
- SKILL.md length
- 117 words
- Files
- 3 (incl. references)
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Claude Code hooks configuration specialist. An agent skill from aiskillstore/marketplace.
- Creating hooks for tool validation
- SKILL.md covers What This Skill Does, When to Use, Reference Files and Hook Events, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Custom automation in Claude Code
What it does
Claude Hooks is an agent skill from aiskillstore/marketplace. Claude Code hooks configuration specialist. Use when creating hooks for tool validation, logging, notifications, or custom automation in Claude Code.
Its SKILL.md is about 340 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/claude-hook.template.md` and `skill-report.json`).
It sits in Agent Workflows, covering Hooks and plugins. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Creating hooks for tool validation
- Custom automation in Claude Code
Example prompts
- “/claude-hooks”
What it can do on your machine
Read from SKILL.md and the folder at commit ad8daf7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Claude Hooks loads about 344 tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 41 tokens; SKILL.md has 117 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 117 words (~344 tokens).
“Creates and configures hooks for Claude Code to automate workflows and extend functionality.”
- name
- claude-hooks
- author
- Joseph OBrien
- status
- unpublished
- updated
- 2025-12-23
- version
- 1.0.1
- tag
- skill
- type
- skill
Files
SKILL.md and 2 other files (references) in skills/89jobrien/claude-hooks of aiskillstore/marketplace.
- SKILL.md
- references/claude-hook.template.md
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Claude Hooks next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Claude Hooks this skillaiskillstore/marketplace | 430 | 1 repos | ~344 | Automated safety check: Pass | None | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase | 10k | 11 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Plugin Settings Patternanthropics/claude-plugins-official | 38k | 7 repos | ~3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 |
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Related
Categories
Questions about Claude Hooks
What does Claude Hooks do?
Claude Code hooks configuration specialist. An agent skill from aiskillstore/marketplace. Claude Hooks is an agent skill from aiskillstore/marketplace. Claude Code hooks configuration specialist.
When should I use Claude Hooks?
Claude Hooks fits situations like: creating hooks for tool validation; custom automation in Claude Code.
How do I install Claude Hooks in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill claude-hooks -a claude-code`. Or copy the skill folder (skills/89jobrien/claude-hooks in aiskillstore/marketplace) into .claude/skills/claude-hooks in your project. Claude Code loads it when a task matches its description.
How do I install Claude Hooks in Codex?
Run `npx skills add aiskillstore/marketplace --skill claude-hooks -a codex`. Or copy the skill folder (skills/89jobrien/claude-hooks in aiskillstore/marketplace) into .agents/skills/claude-hooks in your project. Codex loads it when a task matches its description.
Can I use Claude Hooks in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill claude-hooks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/claude-hooks, .gemini/skills/claude-hooks, .github/skills/claude-hooks and .opencode/skills/claude-hooks in your project.
What does Claude Hooks need to run?
SKILL.md names no scripts, command-line tools or credentials: Claude Hooks is instructions for the agent only.
Does Claude Hooks access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Claude Hooks safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Claude Hooks use?
No licence was found for Claude Hooks or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Claude Hooks use?
About 344 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 812 tokens, read only when the agent opens those files.
What are the alternatives to Claude Hooks?
Skills that share tags, products or a category with Claude Hooks: Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars) and Plugin Settings Pattern (anthropics/claude-plugins-official, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Claude Hooks?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.