--- name: coauthor-brief description: Generate a co-author / collaborator handoff brief for a multi-author, multi-machine project — summarizing what changed since the last brief (git delta), the current state of each artifact (manuscript, analysis, slides), open questions, how to reproduce locally, and any restricted-data access steps. Use when user says "coauthor brief", "handoff brief", "bring my coauthor up to speed", "what changed since last week", "onboard a collaborator", "write a handoff for [name]", or before sending a co-author the repo. NOT a commit or a checkpoint — it is the cross-machine, cross-person summary `meta-governance.md` only partially covers. --- # coauthor-brief This skill's instructions live in [`.claude/skills/coauthor-brief/SKILL.md`](../../../.claude/skills/coauthor-brief/SKILL.md). Read that file now and follow it, with the files it points to. Read [`AGENTS.md`](../../../AGENTS.md) first if you have not already. It was written for Claude Code. Running it from Codex, Antigravity or another agent: - **Arguments.** Where it says `$ARGUMENTS`, use what the user asked for. - **Claude Code agents.** Where a step hands work to an agent in `.claude/agents/` (through the `Agent` or `Task` tool), do that step where it appears in the procedure: never later, and never skip it. A step that gates what follows still gates it (`/commit` runs its verifier before it commits). Read the agent's file for what the step checks. - **Fresh context.** If the step needs a context that has not seen your work, for example a claim verifier that must never see the draft, run it in a separate session or worker that has not seen the draft, if your tool can start one, and give it only what the step says to pass. If it cannot, do the step yourself, mark every result it produced *not independently verified*, and tell the user to repeat that check in Claude Code (`/verify-claims` for citations) before relying on it. - **Claude Code settings.** `allowed-tools`, `model`, `effort`, `argument-hint` and `disable-model-invocation` in the source's frontmatter configure Claude Code. Ignore them. - **Guards.** Claude Code's guard hooks do not run for you. Follow the rules in `AGENTS.md` yourself; the git pre-commit gate and CI still apply to your commits.