claude-code-hooks SKILL.md skillA
claude-code-hooks from aiskillstore/marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aiskillstore/marketplace/claude-code-hooks@git:20260113.222b7dePins git:20260113.222b7de in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aiskillstore/marketplace
- Path
skills/0xdarkmatter/claude-code-hooks/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260113.222b7de, committed Jan 13, 2026
- Size
- 2,967 bytes
- Repository stars
- 471
- License
- none declared
Claude Code hook system for pre/post tool execution. Triggers on: hooks, PreToolUse, PostToolUse, hook script, tool validation, audit logging.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Claude Code Hooks
Execute custom scripts before/after Claude Code tool invocations.
## Quick Reference
| Event | When | Has Matcher |
|-------|------|-------------|
| `PreToolUse` | Before tool execution | Yes |
| `PostToolUse` | After tool completes | Yes |
| `PermissionRequest` | Permission dialog shown | Yes |
| `Notification` | Notifications sent | Yes |
| `UserPromptSubmit` | User submits prompt | No |
| `Stop` | Agent finishes | No |
| `SubagentStop` | Subagent finishes | No |
| `PreCompact` | Before context compaction | No |
| `SessionStart` | Session begins/resumes | No |
| `SessionEnd` | Session ends | No |
## Basic Configuration
Add to `~/.claude/settings.json` or `.claude/settings.local.json`:
```json
{
"hooks": {
"PreToolUse": [{
"matcher": "Bash",
"hooks": [{
"type": "command",
"command": "$CLAUDE_PROJECT_DIR/hooks/validate.sh",
"timeout": 5000
}]
}]
}
}
```
## Matcher Patterns
| Pattern | Matches |
|---------|---------|
| `"Write"` | Only Write tool |
| `"*"` or `""` | All tools |
| `"mcp__*"` | All MCP tools |
| `"Bash"` | Bash commands |
## Hook Script Requirements
```bash
#!/bin/bash
…Read the whole file at its exact version.
How to install
mdr add aiskillstore/marketplace/claude-code-hooks@sha256:b073ee85912a003dThe line at the top of this page pins the label git:20260113.222b7de, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3rzeq2ulgxhm22mw)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 13, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2967 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
aiskillstore/marketplace · 471 stars · license none declared · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3rzeq2ulgxhm22mw GET https://markdownregistry.com/api/v1/resolve?ref=aiskillstore/marketplace/claude-code-hooks GET https://markdownregistry.com/api/v1/blob/b073ee85912a003d23bb651c563f57d3ee9cea0ac1f14d416902537452fa7148
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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