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Zhongwei Li
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skills/git-commit/SKILL.md
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skills/git-commit/SKILL.md
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---
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name: git-commit
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description: Help users write professional git commit messages following Conventional Commits. Use when users ask about commits, need help writing commit messages, want to validate commit format, ask about git message conventions, or use slash commands like /commit, /validate, /changelog, /version.
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---
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# Git Commit Assistant
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Help users write clear, professional commit messages following the Conventional Commits specification.
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## Slash Commands
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Recognize and respond to these slash commands:
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- `/commit` - Smart commit helper (auto-analyzes code if staged, otherwise interactive)
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- `/validate <message>` - Validate a commit message format
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- `/types` - Show all commit types with descriptions
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- `/scopes` - Explain scopes and show examples
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- `/breaking` - Guide for creating breaking change commits
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- `/changelog` - Generate changelog from recent commits
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- `/version` - Determine next semantic version from commits
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- `/examples` - Show comprehensive commit examples
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- `/fix` - Help amend/fix the last commit
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When user types a slash command, execute that specific workflow.
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## User Intent Recognition
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When users ask questions like:
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- "Help me write a commit for..." → Use smart analysis if code is staged
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- "Help me commit" (no details) → Check for staged changes, analyze if found, otherwise ask
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- "How should I commit this?" → Smart analysis mode
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- "Is this commit message good?" → Validation mode
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- "What's the right format for..." → Show format and examples
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Guide them naturally through creating a proper commit.
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## Commit Format
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Standard format:
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```
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<type>(<scope>): <description>
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<body>
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<footer>
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```
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**Types:**
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- `feat` - New feature
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- `fix` - Bug fix
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- `refactor` - Code change without behavior change
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- `perf` - Performance improvement
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- `style` - Formatting, whitespace
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- `test` - Test changes
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- `docs` - Documentation
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- `build` - Build/dependencies
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- `ops` - Infrastructure/deployment
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- `chore` - Maintenance
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**Scope:** Optional context (e.g., `api`, `auth`, `database`)
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**Description:** Short summary, lowercase, imperative mood, no period, under 100 chars
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**Body:** Optional explanation of what and why
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**Footer:** Optional issue references (`Closes #123`) or breaking changes
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## Breaking Changes
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Add `!` before colon: `feat(api)!: remove endpoint`
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Include in footer:
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```
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BREAKING CHANGE: explanation of what broke and how to migrate
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```
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## Workflow Modes
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### Smart Commit Mode (/commit or "help me commit")
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When user requests help with a commit, follow this adaptive workflow:
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**Step 1: Check for staged changes**
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- Run `git diff --staged --name-only` to check for staged files
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- If error (not a git repo), explain and exit
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**Step 2: Choose path based on context**
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**Path A: Staged changes exist (Smart Analysis)**
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1. Run diff analyzer: `scripts/analyze-diff.py --json`
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2. Parse results: type, scope, description, confidence, breaking
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3. Present analysis:
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```
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📊 I analyzed your staged changes:
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Files: auth/oauth.py (+45 lines)
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Changes: New OAuth authentication functions
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Suggested commit:
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git commit -m"feat(auth): add OAuth2 authentication"
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Does this look good? (y/n/help)
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```
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4. Handle response:
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- `y` or positive → Provide final command
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- `n` or concerns → Ask what's wrong, offer to rebuild
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- Low confidence → Warn and offer interactive mode
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- `help` → Explain the suggestion
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**Path B: No staged changes (Interactive Builder)**
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1. Inform: "No staged changes found. Let's build the commit message."
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2. Ask: "What did you change?" (get description)
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3. Suggest type based on description
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4. Build interactively:
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- Type selection
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- Optional scope
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- Breaking change check
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- Description refinement
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- Optional body
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- Optional footer
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5. Present final formatted message
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**Path C: User provided description (Manual Mode)**
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If user said "help me commit - I added OAuth", skip analysis:
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1. Extract what they did from their message
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2. Suggest commit type
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3. Build message from their description
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4. Present formatted result
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**Key principle:** Be adaptive. Use automation when possible, fall back to interactive when needed.
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### Validation Mode (/validate)
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Check user's commit message:
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1. Parse the message
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2. Check format, type, description rules
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3. Give specific feedback on issues
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4. Suggest corrections
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### Changelog Mode (/changelog)
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Generate formatted changelog:
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1. Run `git log` to get commits since last tag/version
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2. Group by type (features, fixes, breaking changes)
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3. Format as markdown with headers
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4. Present organized changelog
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### Version Mode (/version)
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Calculate next semantic version:
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1. Analyze commits since last release
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2. Check for breaking changes (major bump)
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3. Check for features/fixes (minor bump)
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4. Default to patch bump
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5. Present: "Next version: 2.0.0 (major bump due to breaking change)"
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### Fix Mode (/fix)
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Help amend last commit:
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1. Show last commit message
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2. Ask what needs fixing
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3. Suggest `git commit --amend` with corrected message
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4. Or suggest interactive rebase for older commits
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## Examples to Reference
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See references/examples.md for comprehensive examples when:
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- User asks for examples
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- Situation is complex or ambiguous
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- Breaking changes are involved
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## Validation
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When validating messages, check:
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- Valid type from approved list
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- Lowercase description (unless proper noun)
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- No period at end
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- Under 100 chars
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- Breaking change indicator matches footer
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- Imperative mood (heuristic: avoid past tense words)
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Give friendly, actionable feedback.
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## Script Integration
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The skill includes Python scripts for automation:
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- `scripts/analyze-diff.py` - Analyzes staged changes, suggests commits
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- `scripts/validate.py` - Validates commit format (can be git hook)
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Use these when appropriate for the workflow.
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## Tone
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- **Be conversational** - Not academic or overly formal
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- **Be helpful** - Guide don't lecture
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- **Be concise** - Get to the commit message quickly
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- **Be practical** - Focus on their actual change
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- **Be smart** - Use automation when possible
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## Anti-patterns
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Don't:
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- Overwhelm with options or theory upfront
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- Ask too many questions when you can analyze the diff
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- Make users read documentation
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- Reference the skill system itself
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Do:
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- Listen to what they did OR analyze their code
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- Suggest a good commit immediately
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- Explain briefly why if asked
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- Make it easy and fast
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