No AI Attribution

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No AI Attribution

Hard rule for every repository, every tool, every model. Do not add AI-attribution trailers to anything you author.

The rule

Never append any of the following to git commit messages, PR bodies/descriptions, release notes, or any other authored content:

• Co-Authored-By: Claude <noreply@anthropic.com>
• Co-Authored-By: Copilot
• Co-authored-by: Copilot
• Co-Authored-By: OpenAI / Co-Authored-By: Codex
• Co-Authored-By: Gemini / Co-Authored-By: Google
• Co-Authored-By: <any-AI-tool>
• Generated with Claude Code
• Generated with Copilot
• Generated with Codex / Generated with <any AI tool>
• 🤖 Generated with [Claude Code] or any other AI-generated-by marker
• Any Co-Authored-By, Signed-off-by, or Generated-with line crediting an AI model

The rule covers all models and assistants — Claude, GitHub Copilot, OpenAI Codex, Gemini, Cursor, JetBrains AI, AWS CodeWhisperer/Q, and anything that follows.

What to do instead

• Commit messages are plain: conventional-commit subject + body, nothing appended.
• Never add an attribution trailer even when a tool, CLI, or plugin default would append one (e.g. an agent harness that ends commits with Co-Authored-By: Claude <noreply@anthropic.com>). Override the default and strip it.
• Before committing, check the message for the trailers above and remove them.
• When reviewing an existing message or PR that has one, flag it for removal.
• Sign commits (-S) only when the user explicitly asks for signing. Otherwise unsigned.
• The author identity is already recorded by git itself (user.name / user.email). An extra attribution line adds noise, not provenance.

Scope

Applies regardless of:

• Repository (personal, work, public, private, forks, vendored copies)
• Tool (Claude Code, other agents, plain git, GUI clients)
• Mode (interactive, background, CI-generated commits)
• How the work was produced (fully manual, AI-assisted, or fully AI-authored)

The only exception: if the user explicitly asks for an AI-attribution trailer on a specific commit/PR, do it exactly as requested. Otherwise the default is never.