commit-message

A command that drafts a Conventional Commit message from the changes currently staged in Git. Conventional Commits use labels such as feat, fix, or docs to describe the kind of change.

In plain words
What is it for?
Use it to create a short, imperative commit message from staged changes, with a body when the changes cover multiple concerns.
Why use it?
It removes the need to summarize the staged diff and choose a consistent commit format by hand.

Command

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 commands/aayushostwal/nexus/commit-message
Clone the repo
git clone --depth 1 https://github.com/aayushostwal/nexus
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 180 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 $0.00011 $0.00180
Opus 5 $0.00005 $0.00090
Sonnet 5 $0.00002 $0.00036
Haiku 4.5 $0.00001 $0.00018

Measured yesterday against content hash a040261b87bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

commit-message 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 yesterday.

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.

commands/commit-message.md · 23 lines

What it actually says

Draft a commit message for the currently staged changes.

Steps:

  1. Run git diff --staged. If empty, run git status --short and tell the user nothing is staged — stop.
  2. Summarize the diff into a Conventional Commit: type(scope): summary.
  3. Use type from: feat, fix, refactor, docs, test, chore, perf, build, ci.
  4. Keep the summary line under 72 chars, imperative mood, no trailing period.
  5. Add a short body only if the diff spans multiple concerns — bullet the key changes.
  6. Never add a co-author line or attribute the commit to an AI tool.

Output:

Outcome:
Message:
Next Step:
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. yesterday First seen · 23 lines · 11 tokens per session scan A a040261b87bf

Subscribe to this mod's changes

commit-message is a command published in the GitHub repository aayushostwal/nexus (18 stars, last pushed 22d ago), licensed MIT. It adds 11 tokens to every session and 180 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.