Git Commit Helper

A helper that examines Git changes and suggests descriptive commit messages. A commit is a saved set of changes in a Git project, and the suggested messages follow a commonly used format such as `fix` or `feat`.

In plain words
What is it for?
Use it after staging changes to generate a commit message, review the change summary, and label work such as features, bug fixes, tests, documentation, refactoring, or maintenance.
Why use it?
It saves time when naming changes and makes the project history easier to understand. It bases the message on the staged changes instead of relying on a vague summary.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/justdvp/claude-code-templates/git-commit-helper
Any agent
npx skills add Justdvp/claude-code-templates --skill git-commit-helper
Clone the repo
git clone --depth 1 https://github.com/Justdvp/claude-code-templates

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,021 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00029 $0.01021
Opus 5 $0.00015 $0.00511
Sonnet 5 $0.00006 $0.00204
Haiku 4.5 $0.00003 $0.00102

Measured 2d ago against content hash 37344ea18483, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Git Commit Helper scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

cli-tool/components/skills/development/git-commit-helper/SKILL.md · 204 lines

How it starts

The opening of the file, as written. The whole thing — 204 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Git Commit Helper

Quick start

Analyze staged changes and generate commit message:

# View staged changes
git diff --staged

# Generate commit message based on changes
# (Claude will analyze the diff and suggest a message)

Commit message format

Follow conventional commits format:

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

[optional body]

[optional footer]

Types

  • feat: New feature
  • fix: Bug fix
  • docs: Documentation changes
  • style: Code style changes (formatting, missing semicolons)
  • refactor: Code refactoring
  • test: Adding or updating tests
  • chore: Maintenance tasks

Examples

Feature commit:

feat(auth): add JWT authentication

Implement JWT-based authentication system with:
- Login endpoint with token generation
- Token validation middleware
- Refresh token support

Bug fix:

fix(api): handle null values in user profile

Prevent crashes when user profile fields are null.
Add null checks before accessing nested properties.

Refactor:

refactor(database): simplify query builder

Extract common query patterns into reusable functions.
Reduce code duplication in database layer.

Analyzing changes

Review what's being committed:

# Show files changed
git status

# Show detailed changes
git diff --staged

# Show statistics
git diff --staged --stat

# Show changes for specific file
git diff --staged path/to/file

Commit message guidelines

DO:

  • Use imperative mood ("add feature" not "added feature")
  • Keep first line under 50 characters
  • Capitalize first letter
  • No period at end of summary
  • Explain WHY not just WHAT in body

DON'T:

  • Use vague messages like "update" or "fix stuff"
  • Include technical implementation details in summary
  • Write paragraphs in summary line
  • Use past tense

Multi-file commits

When committing multiple related changes:

refactor(core): restructure authentication module

- Move auth logic from controllers to service layer
- Extract validation into separate validators
- Update tests to use new structure
- Add integration tests for auth flow

Breaking change: Auth service now requires config object

Read the full file on GitHub · 204 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 204 lines · 29 tokens per session scan A 37344ea18483

Subscribe to this mod's changes

Git Commit Helper is a skill published in the GitHub repository Justdvp/claude-code-templates (7 stars, last pushed 2d ago), licensed MIT. It adds 29 tokens to every session and 1,021 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories