iceage-commit

iceage-commit is a skill for Claude Code, Codex from pomagrenate/ice_age. It costs 77 tokens per session (628 once invoked), scanned A, a copy of caveman-commit, Apache-2.0.

A tool that writes short Git commit messages in Conventional Commits format, a shared style such as “fix:” or “feat:” followed by a concise summary.

In plain words
What is it for?
It is for generating commit subjects and, when needed, brief explanations, migration notes, or issue references from a code change.
Why use it?
It removes the effort of deciding how to phrase a commit while keeping the change’s purpose clear.

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/pomagrenate/ice_age/iceage-commit
Any agent
npx skills add pomagrenate/ice_age --skill iceage-commit
Clone the repo
git clone --depth 1 https://github.com/pomagrenate/ice_age

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 iceage-commit

README.md
[![agentmods](https://agentmods.dev/badge/skills/pomagrenate/ice_age/iceage-commit.svg)](https://agentmods.dev/skills/pomagrenate/ice_age/iceage-commit)
Your own site
<a href="https://agentmods.dev/skills/pomagrenate/ice_age/iceage-commit"><img src="https://agentmods.dev/badge/skills/pomagrenate/ice_age/iceage-commit.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 628 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 91% copy Near-identical to another mod 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 $0.00077 $0.00628
Opus 5 $0.00039 $0.00314
Sonnet 5 $0.00015 $0.00126
Haiku 4.5 $0.00008 $0.00063

Measured 4d ago against content hash 36b7c6052a65, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

iceage-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 4d 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

This is a copy

91% identical to caveman-commit — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/iceage-commit/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Write commit messages terse and exact. Conventional Commits format. No fluff. Why over what.

Rules

Subject line:

  • <type>(<scope>): <imperative summary><scope> optional
  • Types: feat, fix, refactor, perf, docs, test, chore, build, ci, style, revert
  • Imperative mood: "add", "fix", "remove" — not "added", "adds", "adding"
  • ≤50 chars when possible, hard cap 72
  • No trailing period
  • Match project convention for capitalization after the colon

Body (only if needed):

  • Skip entirely when subject is self-explanatory
  • Add body only for: non-obvious why, breaking changes, migration notes, linked issues
  • Wrap at 72 chars
  • Bullets - not *
  • Reference issues/PRs at end: Closes #42, Refs #17

What NEVER goes in:

  • "This commit does X", "I", "we", "now", "currently" — the diff says what
  • "As requested by..." — use Co-authored-by trailer
  • "Generated with Claude Code" or any AI attribution
  • Emoji (unless project convention requires)
  • Restating the file name when scope already says it

Examples

Diff: new endpoint for user profile with body explaining the why

  • ❌ "feat: add a new endpoint to get user profile information from the database"
  • feat(api): add GET /users/:id/profile
    
    Mobile client needs profile data without the full user payload
    to reduce LTE bandwidth on cold-launch screens.
    
    Closes #128
    

Diff: breaking API change

  • feat(api)!: rename /v1/orders to /v1/checkout
    
    BREAKING CHANGE: clients on /v1/orders must migrate to /v1/checkout
    before 2026-06-01. Old route returns 410 after that date.
    

Auto-Clarity

Always include body for: breaking changes, security fixes, data migrations, anything reverting a prior commit. Never compress these into subject-only — future debuggers need the context.

Boundaries

Only generates the commit message. Does not run git commit, does not stage files, does not amend. Output the message as a code block ready to paste. "stop iceage-commit" or "normal mode": revert to verbose commit style.

Read the full file on GitHub · 66 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. 4d ago First seen · 66 lines · 77 tokens per session scan A 36b7c6052a65

Subscribe to this mod's changes

iceage-commit is a skill published in the GitHub repository pomagrenate/ice_age (2 stars, last pushed 15d ago), licensed Apache-2.0. It adds 77 tokens to every session and 628 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to caveman-commit, differing in 7 lines, and is treated as a copy.

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