Promotion Copy

Turn a feature that just shipped into copy-pasteable, user-facing announcement copy, right inside the engineering workflow, so the messaging doesn't wait for a separate marketing pass.

Done when: every drafted channel is presented as a labeled, copy-pasteable block and the user has been offered a revision. This skill drafts only, it never posts, publishes, schedules, commits, or opens PRs. Posting is a human action.

It works with or without Spiral: with nothing installed it drafts directly from the editorial and social fundamentals in Path B (Direct drafting). When the Spiral CLI is present and authed, drafts come back voice-matched to the user's brand, an enhancement, never a requirement.

Phase 1, Figure out what shipped

A free-form description in the arguments is the source of truth. Otherwise derive it from context, using what is available and never waiting on any single source:

• Merged/active PR, gh pr view --json title,body,url (the title and body usually state the user-facing value)
• The diff, git diff main...HEAD --stat, skimming notable changes so the claim is grounded in what actually changed
• Changelog, the top or [Unreleased] entry in docs/changelog.md, CHANGELOG.md, or similar
• Recent commits, git log --oneline -15 for the arc of the change

Then write a 1-3 sentence summary of the user-facing value: what a user can now do that they couldn't before, and why they'd care. Outcome, not implementation, "You can now export any report to CSV in one click", not "Added a CsvSerializer and an export endpoint." If you can't confidently tell what shipped, ask one short question rather than guessing.

Phase 2, Pick channels