Commit Assisted-by trailer

Record the assisting agent's involvement in a commit by adding an Assisted-by: <agent-name>/<model-id> git trailer. The <agent-name> identify the specific AI assistant (CLI/harness) and <model-id> is the LLM version that contributed to the commit. This disclosure provides transparency about AI involvement in code changes.

In the command examples below, substitute <agent-name>/<model-id> with your own values before running anything.

Mode 1 — commits you create yourself

When you create a commit in a session, limit the commit subject to 50 characters. Use the imperative mood in the subject line (e.g., "Add support for X" instead of "Added support for X").

If the commit message body is needed to explain what and why, wrap it at 72 characters. Avoid verbose explanations in the body, be as concise as possible while still conveying the necessary information.

Pass --trailer directly on the commit command. This is the clean path and avoids amend noise: