Doc Co-authoring
Official skill for drafting documents with an agent in a structured back-and-forth.
Use it for
Specs, proposals, and reports where the outline matters as much as the prose
Skip it if
Short copy or chat replies; the ceremony is wasted on anything under a page
What it is
An official skill that treats document writing as a process: agree the outline, draft section by section, then revise against criteria. It exists because a single prompt produces a document-shaped object, not a document. The structure is the deliverable.
Install
Clone the repository, then copy the skill folder into your agent's skills directory — ~/.claude/skills/ for Claude Code. Skills are plain files: no build step, no daemon.
npx skills add https://github.com/anthropics/skillsHow to judge it
Read the SKILL.md before you install. A good skill states when it applies, what it must not do, and how to verify the result. A skill that only lists adjectives will change the agent's tone without improving its output — skip those.
Other Writing & Content skills
- Internal Comms — Official skill for writing the announcements, updates, and memos companies send internally.
- Marketing Skills — Conversion copy, SEO, A/B tests, and analytics for technical founders.
- Frontend Slides — Builds slide decks as web pages, using frontend skills.