commit

A Git commit-writing helper that creates one conventional commit message from changes already staged for commit. Conventional commits use a standard format such as “fix: correct login error.”

In plain words
What is it for?
Use it to prepare a correctly formatted commit message from staged changes, with a description based on the actual diff.
Why use it?
It removes the need to inspect the staged diff and decide the commit type, scope, subject, and body by hand. It stops when nothing is staged instead of adding files automatically.

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/davidvujic/my-eca-config/commit
Any agent
npx skills add DavidVujic/my-eca-config --skill commit
Clone the repo
git clone --depth 1 https://github.com/DavidVujic/my-eca-config

Made for: Claude Code, Codex.

Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 638 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 $0.00017 $0.00638
Opus 5 $0.00009 $0.00319
Sonnet 5 $0.00003 $0.00128
Haiku 4.5 $0.00002 $0.00064

Measured 2d ago against content hash 7a0e99f6da8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

commit 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/commit/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Commit Skill

Purpose

Produce a single, well-formed conventional commit from the currently staged changes. The commit message follows the format:

<type>(<scope>): <subject>

<body>

This skill MUST be used whenever a task depends on creating a commit.


Procedure

Follow these steps strictly and in order.

Step 1 — Check for staged changes

Run:

git diff --cached --stat

If the output is empty, stop immediately and inform the user:

"No staged changes found. Stage files with git add before committing."

Do not auto-stage files. Do not proceed.


Step 2 — Obtain the diff context

Load and execute the git-changes-context skill to obtain diff_context.

If the skill returns "error": "NO_DIFF_FOUND", fall back to using the staged diff:

git diff --cached

Capture whichever diff is available as diff.


Step 3 — Analyse the diff and build the commit message

Using diff, determine:

  1. type — one of: feat, fix, refactor, docs, style, test, chore, perf, ci, build, revert.
  2. scope (optional) — the primary module, file, or area affected. Omit parentheses entirely if no clear scope exists.
  3. subject — a short imperative summary (lowercase, no period, max ~72 chars).
  4. body — a concise description (1–3 sentences) of what changed and why, derived from the diff. Focus on intent, not low-level line changes.

If the user provided a hint (passed as $ARGUMENTS), use it as the subject line. Still generate the body from the diff. If the hint already contains a type prefix (e.g. fix: correct null check), honour it and do not override the type.


Step 4 — Execute the commit

Construct the full commit message and run:

git commit -m "<full message>"

Use a HEREDOC to preserve newlines:

git commit -m "$(cat <<'EOF'
<type>(<scope>): <subject>

<body>
EOF
)"

Step 5 — Confirm

Show the user:

  • The commit hash (short form).
  • The full commit message that was used.

Read the full file on GitHub · 103 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 · 103 lines · 17 tokens per session scan A 7a0e99f6da8d

Subscribe to this mod's changes

commit is a skill published in the GitHub repository DavidVujic/my-eca-config (11 stars, last pushed 4d ago), licensed MIT. It adds 17 tokens to every session and 638 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 2026-08-30.

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