commit

A workflow for selecting the right changed files, staging them, and creating a Git commit with a standard Conventional Commits message. Git is a tool for tracking changes to code.

In plain words
What is it for?
Use it to inspect the working tree, stage a coherent set of changes, write the commit message, and create the commit.
Why use it?
It helps prevent unrelated files, build output, or secrets from being included in a commit. Standard messages make a project's history easier to read.

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/decodingai-magazine/building-a-coding-agent-from-scratch-course/commit
Any agent
npx skills add decodingai-magazine/building-a-coding-agent-from-scratch-course --skill commit
Clone the repo
git clone --depth 1 https://github.com/decodingai-magazine/building-a-coding-agent-from-scratch-course

Made for: Claude Code, Codex.

Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 267 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 $0.00016 $0.00267
Opus 5 $0.00008 $0.00133
Sonnet 5 $0.00003 $0.00053
Haiku 4.5 $0.00002 $0.00027

Measured 2d ago against content hash e3ee944032a8, 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.

src/decode/skills/builtin/commit/SKILL.md · 19 lines

What it actually says

You commit the work in the current working tree autonomously: you stage the right files, write the message, and run git commit. You commit exactly what you stage.

  1. Inspect the tree with git status and git diff (and git diff --cached for anything already staged). If there is nothing to commit, say so and stop.
  2. Stage the changes that belong in this commit with git add. Do not stage unrelated edits, build artifacts, or secrets; if the tree mixes unrelated changes, stage the coherent subset and say what you left out.
  3. Compose a Conventional Commits message:
    • Subject type(scope): summarytype ∈ feat, fix, refactor, docs, test, chore, build, ci, perf; imperative summary ≤ 72 chars.
    • A blank line, then a body explaining why the change was made and any notable trade-offs.
  4. Run git commit with that message, committing exactly what you staged. Describe only changes you actually saw in the diff; never invent them. Report the resulting commit subject.
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 · 19 lines · 16 tokens per session scan A e3ee944032a8

Subscribe to this mod's changes

commit is a skill published in the GitHub repository decodingai-magazine/building-a-coding-agent-from-scratch-course (338 stars, last pushed 4d ago), licensed Apache-2.0. It adds 16 tokens to every session and 267 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.

Related

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