conventional-commits

conventional-commits is a skill for Claude Code, Codex from jnMetaCode/skillet. It costs 32 tokens per session (503 once invoked), scanned A, original, MIT.

A guide for writing Conventional Commits, a standard format for Git commit messages. It bases the message on the staged code changes and explains the change's effect.

In plain words
What is it for?
Writing or correcting commit messages, choosing types such as fix or feat, matching the repository's style, and documenting breaking changes.
Why use it?
It prevents commit history from describing intentions that are not reflected in the actual code, making past changes easier to understand and search.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Writing or correcting commit messages, choosing types such as fix or feat, matching the repository's style, and documenting breaking changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jnmetacode/skillet/conventional-commits
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.

Any agent
npx skills add jnMetaCode/skillet --skill conventional-commits
Clone the repo
git clone --depth 1 https://github.com/jnMetaCode/skillet

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for conventional-commits

README.md
[![agentmods](https://agentmods.dev/badge/skills/jnmetacode/skillet/conventional-commits/github.svg)](https://agentmods.dev/skills/jnmetacode/skillet/conventional-commits)
Your own site
<a href="https://agentmods.dev/skills/jnmetacode/skillet/conventional-commits"><img src="https://agentmods.dev/badge/skills/jnmetacode/skillet/conventional-commits/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for conventional-commits

Your own site · 80×15
<a href="https://agentmods.dev/skills/jnmetacode/skillet/conventional-commits"><img src="https://agentmods.dev/badge/skills/jnmetacode/skillet/conventional-commits.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 503 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00032 $0.00503
Opus 5 $0.00016 $0.00251
Sonnet 5 $0.00006 $0.00101
Haiku 4.5 $0.00003 $0.00050

Measured 9d ago against content hash c4dec9ebd0a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

conventional-commits 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 9d 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/conventional-commits/SKILL.md · 46 lines

What it actually says

conventional-commits

Write the message from the diff, not from the conversation. The reader is a stranger running git log in two years.

Procedure

  1. Read what is actually staged: git diff --cached --stat then the diff itself.
  2. Classify the change — pick ONE primary type:
    • feat new user-visible capability · fix corrects wrong behavior
    • refactor no behavior change · perf faster, same behavior
    • docs · test · build · ci · chore (only when nothing else fits)
  3. Scope = the subsystem a reader would filter by: feat(parser): …. Omit if the repo doesn't use scopes (check git log --oneline -20 and match style).
  4. Subject line: imperative, lowercase, no period, ≤ 72 chars, and it must state the effect, not the activity — "fix: reject expired tokens" not "fix: update token check".
  5. Body (when the why isn't obvious): 1–3 sentences on why the change was needed and any non-obvious consequence. Wrap at 72. Never narrate the diff.
  6. Breaking change → footer BREAKING CHANGE: <what breaks and the migration>, and add ! after the type: feat(api)!: ….

Anti-patterns to reject

  • One commit doing two unrelated things — split it (git add -p).
  • "update", "misc fixes", "address comments" — say what changed.
  • Restating the conversation ("as discussed…") — the log has no conversation.
  • Explaining that the change is correct — that belongs in the PR, not the log.

Example

fix(ingest): treat mtime regressions as edits, not new files

Restored backups can move mtime backwards; we indexed those as fresh
documents, duplicating every chunk. Key on inode+path instead.
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. 9d ago First seen · 46 lines · 32 tokens per session scan A c4dec9ebd0a1

Subscribe to this mod's changes

conventional-commits is a skill published in the GitHub repository jnMetaCode/skillet (1 stars, last pushed today), licensed MIT. It adds 32 tokens to every session and 503 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 2026-08-31.

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