Auto-Commit Skill

🎯 Use Case Demo

Scenario

Developer Sarah just finished implementing a new seat selection feature. She has 5 files changed but struggles to write a good commit message.

Before (Manual):

git commit -m "updated stuff"  # 😬 Bad commit message

After (With Skill):

# Skill analyzes the diff and suggests:
feat(booking): add passenger seat selection with availability check

- Add SeatSelection model with row and seat properties
- Implement seat availability validation in BookingService
- Add GET /api/seats/{flightId} endpoint
- Update booking flow to include seat assignment

Time Saved: 5-10 minutes per commit × 20 commits/day = 2+ hours/day

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When to Use This Skill

• After making changes, before committing
• When unsure how to describe changes
• To maintain consistent commit message format
• For generating detailed commit bodies

Commit Message Format

Following Conventional Commits:

<type>(<scope>): <description>

[optional body]

[optional footer]

Types:

• feat - New feature
• fix - Bug fix
• docs - Documentation
• style - Formatting
• refactor - Code restructuring
• test - Adding tests
• chore - Maintenance

Agent Instructions

When user asks to commit or wants a commit message:

1. Get staged changes: git diff --cached
2. Analyze the diff to understand:
   • What files changed
   • What type of change (feature, fix, refactor)
   • The scope (which module/component)
3. Generate commit message following conventional commits
4. Present to user for approval
5. Execute commit if approved

Example Prompts

User: "Commit my changes" → Analyze diff, suggest message, commit

User: "What should my commit message be?" → Analyze diff, suggest message only

User: "Commit with message: fix login bug" → Use provided message directly

Demo Script

# 1. Make some changes
echo "// New feature" >> src/feature.ts

# 2. Stage changes
git add .

# 3. Ask agent: "Generate a commit message for my changes"

# 4. Agent analyzes and suggests:
#    feat(core): add new feature module
#    
#    - Add feature.ts with core functionality
#    - Implement base feature logic

# 5. User approves, agent commits

Benefits

Metric	Before	After	Improvement
Commit message quality	Inconsistent	Standardized	✅ 100%
Time per commit	2-5 min	10 sec	⬇️ 90%
Changelog generation	Manual	Automated	✅ Enabled
Code review context	Poor	Excellent	⬆️ 10x