git-commit

name	git-commit
description	Use when the user wants to commit staged changes, asks for a commit message, or wants a concise summary of the staged diff before committing.

git-commit

Purpose

Use this skill to turn the staged diff into a short, human-readable commit message with a leading emoji, then create the commit without pushing.

This repo prefers the staged-diff helper in this skill over raw git diff --staged so common lockfiles do not dominate the summary.

When to use

Use this skill when:

• The user asks you to commit staged changes.
• The user asks for a commit message based on what is staged.
• The user wants a quick summary of staged work before committing.

Do not use this skill for:

• Pull request titles or PR bodies. Use the PR skills instead.
• Branch-wide summaries based on commit history.
• Unstaged work unless the user first asks you to stage it.

Commit message format

<emoji> <summary>

[body]

Scoped subject:

<emoji> [scope]: <summary>

Format details:

• emoji is required and should match the dominant change.
• summary is required and should be a single concise sentence in present tense and active voice.
• scope is required when the current workspace is a monorepo. Use the affected package, app, or subsystem name.
• In a non-monorepo repo, scope is optional and should be used only when it adds clarity.
• body is optional. Add it only when the reason or impact would be unclear from the subject alone.
• Do not add sign-offs or tool-generated trailers such as Made-with: Cursor.
• Focus on the main change, not a changelog of every file.
• Commit only. Do not push.

Workflow

1. Gather the staged diff with the helper script.

   • Run skills/git-commit/scripts/git-diff.sh.
   • Use this output as the primary source for the commit summary.
   • The helper excludes common lockfiles such as pnpm-lock.yaml, package-lock.json, yarn.lock, bun.lockb, Gemfile.lock, uv.lock, composer.lock, go.sum, and Cargo.lock.

2. Stop cleanly when nothing is staged.

   • If the script prints No changes to commit, tell the user there are no staged changes and do not run git commit.

3. Derive the message from the staged diff.

   • Choose the emoji that best matches the dominant change.
   • If the current workspace is a monorepo, infer the scope from the staged paths and include it in the subject.
   • Do not ask the user whether a monorepo commit needs a scope. It does.
   • If multiple staged files map to one package, app, or subsystem, use that name as the scope.
   • If the staged changes span multiple monorepo areas, choose the narrowest honest shared scope instead of omitting scope.
   • Write one short subject line that captures the purpose of the staged work.
   • Add a short body only when the subject alone would hide important context.

4. Commit with safe quoting.

   • Prefer a HEREDOC-backed command so single-line and multi-line messages both work cleanly:

git commit -F - <<'EOF'
📝 Update commit message guidance
EOF

5. Report the result.
   • Confirm the commit succeeded.
   • Do not push unless the user explicitly asks.

Rules

• Prefer the helper script over raw staged diff commands for message generation.
• Base the message on what is staged now, not on unstaged edits or guesses about future work.
• In a monorepo, always include a [scope] in the subject.
• Infer monorepo scope from file paths, package names, or the nearest clear subsystem label instead of asking the user.
• Keep the subject short, specific, and imperative.
• Do not invent extra scope, test claims, or follow-up work in the message body.
• If multiple changes are staged, summarize the dominant theme rather than listing every detail.

Common emojis

Choose the closest match when there is no perfect option.

Change type	Emoji	Example
New feature	✨	✨ Add commit message scope support
Bug fix	🐛	🐛 Fix staged diff parsing for empty output
Documentation	📝	📝 Rewrite git-commit skill guidance
Refactor	♻️	♻️ Simplify commit message selection flow
Tests	✅	✅ Add coverage for emoji mapping
Build / CI	👷	👷 Add workflow for release validation
Performance	⚡️	⚡️ Speed up diff filtering
Configuration	🔧	🔧 Add repo-level commit config
Developer tooling	🔨	🔨 Add staged diff helper script
Dependencies	⬆️ / ⬇️ / ➕ / ➖	⬆️ Upgrade dev dependencies
Text / copy	💬	💬 Update default commit prompt
Minor fix	🩹	🩹 Fix wording in commit output
Breaking change	💥	💥 Change commit config schema

If a more specific emoji is clearly better, use it.