# Configure Claude Code Hooks

Claude Code hooks are powerful but easy to misconfigure. This skill helps design validation, logging, notification, and cleanup hooks with clear event patterns.

## Install

```bash
npx skillstore add joseph obrien/89jobrien-claude-hooks
```

## Metadata

- Status: approved
- Slug: 89jobrien-claude-hooks
- Version: 1.0.1
- Author version: 1.0.1
- Skillstore revision: r1
- Version status: valid
- Tree hash: f6a4f9475942ac5bedf44213c2c155dc639a6aa6f26fe74fb2e13f030076aeed
- Author: Joseph OBrien
- GitHub username: 89jobrien
- License: MIT
- Repository: https://github.com/89jobrien/steve/tree/main/steve/skills/claude-hooks
- Ref: c4037264bbd363c572662d6154a3ab28f5ca4f53
- Supported tools: Claude, Codex, Claude Code
- Audit status: complete
- Agent install advisory: allowed
- Manual install advisory: allowed
- Artifact signature: available
- Audit attestation: unavailable
- Human verification: not\_verified
- Risk factors: filesystem, external\_commands
- Quality score: 78
- Quality tier: bronze
- Public page: https://skillstore.pages.dev/skills/89jobrien-claude-hooks
- Manifest: https://skillstore.pages.dev/api/skills/89jobrien-claude-hooks/manifest

## Capabilities

- Explains the Claude Code hook events: PreToolUse, PostToolUse, Notification, and Stop.
- Shows where hooks are configured in the Claude Code settings file.
- Provides a basic hook configuration structure with event, matcher, type, and command fields.
- Includes examples for Bash validation, file write logging, and desktop notifications.
- Lists supported environment variables available to hook commands.
- Provides matcher patterns and a quality checklist for hook review.

## Use Cases

- Add Command Guardrails: Create PreToolUse hooks that check tool use before execution and explain the matcher strategy.
- Create Local Audit Logs: Design PostToolUse logging for selected file events while keeping log scope clear and controlled.
- Build Development Notifications: Configure notification or stop-event hooks that alert developers without interrupting normal Claude Code work.

## Prompt Templates

### Create a Basic Hook

```
Help me create a Claude Code hook for one event. Ask me which event, matcher, and local command I want before drafting it.
```

### Add Tool Validation

```
Design a PreToolUse hook that warns before risky Bash commands. Explain the matcher choice and include testing steps.
```

### Configure Local Logging

```
Create a PostToolUse logging hook for file writes. Keep the log local, avoid secret data, and explain the privacy tradeoffs.
```

### Review a Hook Policy

```
Audit my planned Claude Code hook set for command safety, matcher scope, error handling, and noisy output. Recommend safer alternatives.
```

## Limitations

- It provides templates and guidance, not an automatic hook installer.
- It does not validate shell command safety for every operating system.
- It does not manage secrets, permissions, or team policy enforcement.
- Notification examples are platform specific and may require local changes.

## Best Practices

- Keep hook commands fast and fail gracefully so automation does not interrupt Claude Code.
- Use the narrowest matcher that covers the intended tool or command pattern.
- Review logging and environment variable use for secrets before enabling a hook.

## Anti Patterns

- Using a wildcard matcher when a specific tool matcher is enough.
- Logging complete tool inputs or outputs without reviewing sensitive data exposure.
- Running complex or long-lived shell commands directly inside synchronous hooks.

## Security Audit

- Audited at: 2026-07-05T11:13:21.617\+00:00
- Summary: All ten static findings were adjudicated as false positives. The flagged backticks are Markdown formatting, the hidden path references document Claude Code configuration or local example logging, and the reconnaissance alerts match benign logging guidance. No prompt injection, network exfiltration, or malicious hook intent was found in the reviewed files.

## Stats

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- Downloads: 14
- Favorites: 0
- Popularity score: 0