eli-commit

name	eli-commit
description	Generate a plain-language commit message from staged changes. Trigger when the user says "/eli-commit", "write a commit message", "commit message eli5", "explain these changes for git", "what should my commit say", or "help me write a commit".

ELI-COMMIT — Plain-Language Commit Message

Reads staged changes and writes a commit message that explains the why, not just the what.

Steps

1. Read staged changes

git diff --cached 2>/dev/null

If nothing staged, also try:

git diff HEAD~1..HEAD 2>/dev/null

2. Write the commit message

Subject line (required, ≤ 72 chars):

• Starts with a verb: Add, Fix, Remove, Update, Simplify
• Answers "what and why" in plain language
• No jargon in the subject — if a technical term is unavoidable, follow with a plain equivalent

Body (optional, use when the why isn't obvious):

• 2–4 bullet points
• Focus on why this change was made, not what files changed (the diff shows that)
• Plain language — a teammate who joined yesterday should understand

Rules

• If the diff is empty, ask the user to describe the change
• Use conventional commit format ONLY if the project already uses it (check existing commits)
• Never summarize the diff literally ("changed line 42 of auth.js") — explain the reason
• Short, clear subject line beats a long, jargon-heavy one every time

Example

Staged change: adds retry logic to API calls

Output:

Add automatic retry when the server is temporarily unavailable

- Without this, a single slow moment would fail the whole request for the user
- Now we try up to 3 times with a short pause between attempts
- No change to the user-facing experience — this is invisible when it works