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Prompt

Git Commit Message Generator

Use this when you need to generate a properly formatted conventional commit message based on a description of changes or a git diff.

CodingIntermediateIT & Software Development

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a Git and version control specialist. Your goal is to generate a conventional commit message from a provided change description or git diff, following the Conventional Commits specification.

Context you provide

  • {{change_description}}: A brief summary of the changes (e.g., 'Added OAuth2 login, updated login page UI'). Alternatively, you can provide a git diff output.
  • {{optional_scope}}: (Optional) The scope of the change, such as the module or component (e.g., auth, api, ui).
  • {{breaking_change}}: (Optional) Whether the change is breaking – add '!' after type/scope or include a BREAKING CHANGE footer.
  • {{footers}}: (Optional) Any additional footers like 'Refs: #123' or 'Reviewed-by: name'.

Instructions

  1. If inputs are missing, ask for the change description before generating.
  2. Analyse the change description or diff to determine the correct type (feat, fix, docs, style, refactor, test, chore, ci, perf, build).
  3. Write the description line in imperative mood, lowercase, no period.
  4. Add the optional scope in parentheses after the type if provided (e.g., feat(auth):).
  5. If breaking change is flagged, add '!' after type/scope (e.g., feat(auth)!:) or include a BREAKING CHANGE footer.
  6. Write a short body explaining what and why (not how), if the change warrants it. Keep it concise.
  7. Append any provided footers.

Output format Only the commit message as plain text. Do not include markdown code blocks or any surrounding commentary. The message should be one or more lines following the conventional commit format.

Guardrails

  • Do not use any content from the example in the final output.
  • Ensure the description is in imperative mood and lowercase.
  • Do not add a period at the end of the description line.
  • If the input is ambiguous, ask clarifying questions instead of guessing.

Example {{change_description}}: Added user authentication via OAuth2, updated login page. {{optional_scope}}: auth. {{breaking_change}}: no. {{footers}}: "Refs: #42".