Agent-Skills.md

Agent Skills: Git Commit Assistant Skill

Assists with careful Git commits in any repository. Activates when committing changes, checking .gitignore, or generating commit messages. Ensures proper file exclusion (credentials, MCP configs, personal settings), identifies untracked files, and generates Conventional Commits messages with Japanese explanations.

UncategorizedID: fubira/claude-code-settings/git-commit-assistant
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Install this agent skill to your local

pnpm dlx add-skill https://github.com/fubira/claude-code-settings/tree/HEAD/skills/git-commit-assistant

Skill Files

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skills/git-commit-assistant/SKILL.md

Skill Metadata

Name
git-commit-assistant
Description
Assists with careful Git commits in any repository. Activates when committing changes, checking .gitignore, or generating commit messages. Ensures proper file exclusion (credentials, MCP configs, personal settings), identifies untracked files, and generates Conventional Commits messages with Japanese explanations.

Git Commit Assistant Skill

Safe, high-quality Git commits. Sensitive file exclusion, .gitignore management, Conventional Commits message generation.

Activation Triggers

  • "commit", ".gitignore", push-related requests

Workflow

Phase 1: Repository Analysis

  1. git status --porcelain + git branch --show-current to check state
  2. Read .gitignore, suggest missing required patterns

Phase 2: File Classification

AUTO_EXCLUDE (never commit):

  • Secrets: *.key, *.pem, *credentials*, *secret*, *password*, .env*
  • MCP config: .claude.json, .mcp.json*
  • Personal settings: settings.json, settings.local.json, IDE configs
  • Build artifacts: node_modules/, dist/, build/, vendor/, *.log, *.cache
  • OS: .DS_Store, Thumbs.db

AUTO_COMMIT (generally safe):

  • Source code (src/**, internal/**, lib/**), tests, docs (*.md)
  • Shared config (.gitignore, package.json, tsconfig.json, go.mod, .github/workflows/*)
  • Skills/Knowledge (~/.claude/skills/**, ~/.claude/knowledge/**)

CONFIRM (user decision): Files > 1MB, new directories, executables, unclassified config files

Phase 3: Commit Message Generation

  1. Analyze changes from git diff --cached and git status
  2. Generate Conventional Commits message: 
    <type>(<scope>): <subject>  ← English, max 50 chars, imperative

- <description (Japanese OK)>

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
    • 3-5 bullets explaining what/why/impact. No file lists
  3. Present to user for confirmation

Phase 4: Commit & Push

  1. Stage with git add / git rm
  2. Commit using heredoc, verify success
  3. Push only after user confirmation

Sensitive Content Scan

Scan diff before commit:

  • API keys: [A-Za-z0-9_-]{20,}
  • Passwords: password.*=.*
  • URLs with credentials: ://.*:.*@

Warn and abort commit on detection.

Error Handling

| Error | Action | |-------|--------| | Merge conflict | Prompt resolution, show conflict files | | Detached HEAD | Suggest git switch -c <branch> | | Nothing to commit | Report clearly |

Supporting Files

  • rules/gitignore-patterns.md: .gitignore pattern library
  • rules/file-classification.md: Detailed file classification rules
  • templates/commit-message.md: Message template and examples