# Generating Commit Messages

> Generates clear, descriptive commit messages by analyzing git diffs. Use when writing commit messages or reviewing staged changes.

- Skill: `tomevault-io/generating-commit-messages-3` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/generating-commit-messages-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/generating-commit-messages-3/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/generating-commit-messages-3

---


# Generating Commit Messages

Analyzes git changes and generates conventional commit messages.

## Instructions

1. Run `git diff --staged` to see changes
2. Analyze the changes and suggest a commit message with:
   - **Summary**: Under 50 characters, present tense
   - **Description**: What changed and why
   - **Affected components**: List modified areas

## Format

```
<type>(<scope>): <summary>

<description>
```

## Types

- `feat`: New feature
- `fix`: Bug fix
- `docs`: Documentation changes
- `refactor`: Code refactoring
- `test`: Adding or modifying tests
- `chore`: Maintenance tasks
- `perf`: Performance improvements
- `style`: Code style changes (formatting, etc.)

## Best Practices

- Use present tense ("add feature" not "added feature")
- Explain WHAT and WHY, not HOW
- Reference issue numbers when relevant
- Keep first line under 50 characters
- Separate subject from body with blank line
- Use imperative mood

## Examples

**Input:** Added user authentication with JWT tokens
**Output:**
```
feat(auth): implement JWT-based authentication

Add login endpoint with token generation and validation middleware.
Includes token refresh logic and secure storage.

Closes #123
```

**Input:** Fixed bug where dates displayed incorrectly
**Output:**
```
fix(reports): correct date formatting in timezone conversion

Use UTC timestamps consistently across report generation.
Previously used local time which caused discrepancies for users
in different timezones.
```

---
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<!-- tomevault:4.0:skill_md:2026-04-13 -->