Brief scaffold: forbid agent attribution in every worker's commits and PRs, with a check before done #34

Merged

john merged 1 commit from fm/fm-brief-no-attribution into main

2026-09-24 10:17:20 +00:00

john commented

2026-09-24 07:50:18 +00:00

Owner

What was wrong

On the night of 09/23, four of four Claude-harness ship workers added Co-Authored-By: Claude … trailers to their commits, and one PR body carried "Generated with Claude Code". The harness injects its own attribution instruction into Claude workers, and nothing in the generated brief overrode it. AGENTS.md already forbids an agent co-author, but that rule reaches firstmate, not the crewmates it briefs. The Pi and Codex workers were clean. All four branches had to be reworded, force-pushed and re-validated before they could merge.

What changed

bin/fm-brief.sh: every ship variant and the scout variant now carries one rule. There must be no agent attribution anywhere a project reads: no agent co-author trailer, no "Generated with …" line, no session links, in commit messages, PR titles or bodies, or code comments. The rule explicitly overrides any attribution instruction the harness provides.
The generated definition of done adds a mechanical backstop. Before reporting done, the worker runs git log origin/<default>..HEAD --format=%B | grep -i -E 'co-authored-by|generated with|claude.ai' and requires it to print nothing.
tests/fm-brief.test.sh proves every generated variant contains the rule.

Validation

The no-mistakes pipeline passed at b13177c. It changes 2 files, +22 lines.

Open

Nothing. This is the firstmate repo, so there is no Plane story.

## What was wrong On the night of 09/23, four of four Claude-harness ship workers added `Co-Authored-By: Claude …` trailers to their commits, and one PR body carried "Generated with Claude Code". The harness injects its own attribution instruction into Claude workers, and nothing in the generated brief overrode it. AGENTS.md already forbids an agent co-author, but that rule reaches firstmate, not the crewmates it briefs. The Pi and Codex workers were clean. All four branches had to be reworded, force-pushed and re-validated before they could merge. ## What changed - `bin/fm-brief.sh`: every ship variant and the scout variant now carries one rule. There must be no agent attribution anywhere a project reads: no agent co-author trailer, no "Generated with …" line, no session links, in commit messages, PR titles or bodies, or code comments. The rule explicitly overrides any attribution instruction the harness provides. - The generated definition of done adds a mechanical backstop. Before reporting done, the worker runs `git log origin/<default>..HEAD --format=%B | grep -i -E 'co-authored-by|generated with|claude.ai'` and requires it to print nothing. - `tests/fm-brief.test.sh` proves every generated variant contains the rule. ## Validation The no-mistakes pipeline passed at `b13177c`. It changes 2 files, +22 lines. ## Open Nothing. This is the firstmate repo, so there is no Plane story.

john added 1 commit

2026-09-24 07:50:18 +00:00