git-commit-helper

A guide for writing clear Git commit messages, which describe specific changes in a version-control history. It supports conventional prefixes and separates unrelated work into separate commits.

In plain words
What is it for?
Choosing commit prefixes, writing concise commit subjects and descriptions, splitting unrelated edits, and recording user-visible effects.
Why use it?
It makes the project history easier to understand and review. Clear messages explain both what changed and why.

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/vadimcomanescu/codex-skills/git-commit-helper
Any agent
npx skills add vadimcomanescu/codex-skills --skill git-commit-helper
Clone the repo
git clone --depth 1 https://github.com/vadimcomanescu/codex-skills

Made for: Claude Code, Codex.

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 136 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 $0.00032 $0.00136
Opus 5 $0.00016 $0.00068
Sonnet 5 $0.00006 $0.00027
Haiku 4.5 $0.00003 $0.00014

Measured 2d ago against content hash 78e3ed04141c, 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.

skills/.experimental/devtools/git-commit-helper/SKILL.md · 22 lines

What it actually says

Git Commit Helper

Create concise, high-signal commits that explain intent and scope.

Quick Start

  1. Summarize the change and split unrelated edits.
  2. Choose a conventional commit prefix if applicable.
  3. Write a short subject + optional body describing why.

Guardrails

  • One logical change per commit.
  • Avoid noisy “WIP” messages unless asked.
  • Mention user-visible impact when relevant.

References

  • Extended examples: references/examples.md
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 22 lines · 32 tokens per session scan A 78e3ed04141c

Subscribe to this mod's changes

git-commit-helper is a skill published in the GitHub repository vadimcomanescu/codex-skills (24 stars, last pushed 7mo ago), licensed MIT. It adds 32 tokens to every session and 136 once invoked, about $0.0002 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 2026-08-30.

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