/commit-msg

description: Draft a Conventional Commit message for staged changes. Analyzes diffs, classifies change type, and formats scope/body.
model_hint: fast

Draft a Conventional Commit Message

Run these git commands to gather context, then draft the message.

Steps

1. **Gather context** (run in parallel):

• `git status -sb`
• `git diff --cached --stat`
• `git diff --cached`
• `git log --oneline -5`

2. **If nothing is staged**, tell the user and stop.

3. **Classify the change**: Pick a type from `feat`, `fix`, `docs`, `refactor`, `test`, `chore`, `style`, `perf`, `ci`. Pick an optional scope from the changed directory or module.

4. **Draft the message** in this format:

   <type>(<scope>): <imperative summary, ≤50 chars>

   <body: what and why, wrapped at 72 chars>

   <footer: BREAKING CHANGE or issue refs, if any>

5. **Slop check**: the message must NOT contain: leverage, utilize, seamless, comprehensive, robust, facilitate, streamline, delve, multifaceted, pivotal, intricate, optimize, nuanced, furthermore, moreover, revolutionize, elevate, unlock, "it's worth noting", "at its core", "in essence", "a testament to"

If found, replace with plain words (use, smooth, complete, solid, enable, simplify, improve, explore, varied, key, detailed).

5a. **Character-level slop check**: load `shared/output-hygiene.md` (Contract A) and strip these from the message. Inline fallback if that module is absent:

• `"+"` used as a prose conjunction becomes `and`

(`parser + validator` becomes `parser and validator`). Keep `+` in version strings, math, and code.

• em-dash `—` becomes a colon, period, comma, or a rewrite.
• `--` used as prose punctuation becomes a colon or a rewrite.
• arrows `->` and `→` used as connectors become `to` or `into`.
• smart quotes `“ ” ‘ ’` become straight `"` and `'`.

5b. **Subject-matter check** (Contract B): describe the change by its reader-facing effect. Name neither the AI origin nor the specific marker removed. Do NOT write `remove AI slop`, `de-slop`, `AI-generated content`, `AI phrasing`, `replace em-dashes`, `remove smart quotes`, or similar. Test: if the subject only makes sense as "I cleaned up AI output", rewrite it. For example `docs: clarify the setup section`, not `style: replace em-dashes with colons`.

6. **Write** the message to `./commit_msg.txt` and preview it.

Rules

• **NEVER** use `git commit --no-verify` or `-n`.
• Write for humans. "fix auth bug" beats "streamline authentication

optimization."