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Document Co-authoring
Use Claude Code to co-author documents, refine drafts, and iterate on content. Get AI writing help that preserves your voice.
By Anthropic
Official skill
About
You've been staring at the same paragraph for 20 minutes. The draft is due tomorrow. Your colleague's feedback says "needs more impact" but doesn't say how. Instead, work with Claude as your writing partner. Describe what you're trying to say, and Claude helps you say it better—preserving your voice while making every sentence count.
Stop writing alone. Start writing with a partner who never gets tired. Draft from rough ideas You have bullet points, meeting notes, or half-formed thoughts. Claude turns them into polished prose that sounds like you wrote it on your best day. Refine what's already there Paste your draft. Say "make it tighter" or "more persuasive" or "less jargon." Claude rewrites while keeping your core message intact. Iterate without starting over Don't like a section? Ask for three alternatives. Want a different tone? Claude adjusts. The back-and-forth is the point.
Best for
- · Move from blank page to solid draft in minutes instead of hours
- · Get unstuck when you know what you want to say but can't find the words
- · Maintain your voice while improving clarity and impact
- · Iterate faster—ask for alternatives instead of rewriting from scratch
Not for
- · Claude suggests—you decide. Always review for accuracy, especially facts and figures you provided
- · Highly technical or legal content should still get expert review
- · Works best when you give clear direction about what's not working and why
How to use
- 1Install the SkillDownload the skill file directly, or install via the plugin marketplace. Skills auto-activate when relevant—no manual invocation needed.
- 2Share Your Starting PointPaste your draft, outline, or even just the idea you're trying to express. Claude works with whatever you have—polished or messy.
- 3Be Specific About What You NeedVague requests get vague results. Tell Claude exactly what's not working: too wordy, wrong tone, missing the point, needs stronger opening.
- 4Iterate Until It's RightAsk for alternatives. Mix and match. Say "I like the opening from version 2 but the closing from version 1." Claude keeps track.
Source
@anthropics on GitHubhttps://github.com/anthropics/skills/tree/main/skills/doc-coauthoring
Someone else wrote this — read the source, verify it does what it says, and never share a password or API key with it.
Example prompts
Exploring different approaches before committing
I need to write a project status update that explains a 3-week delay. Before we write the full thing, show me 4 different approaches: apologetic, matter-of-fact, solutions-focused, and forward-looking. One paragraph each so I can pick a direction.
Turning notes into a polished document
Here are my raw notes from the customer interview. Turn this into a 2-page summary for the product team. Keep direct quotes where they're powerful. Organize by: key pain points, feature requests, competitive mentions.
Making a draft more persuasive
This is my pitch for expanding the engineering team. HR said it needs to be "more compelling." Rewrite it to lead with business impact, quantify the cost of not hiring, and end with a clear ask. Keep it under 500 words.
Matching someone else's writing style
I'm ghostwriting a LinkedIn post for our CEO. Here are three posts she's written that I like. Write a new post announcing our Series B in her voice—direct, slightly self-deprecating, always ties back to the team.
Breaking through writer's block
I've been stuck on this blog intro for an hour. The topic is "why we're rebuilding our API." I keep starting with "We're excited to announce..." which is boring. Give me 5 opening hooks that aren't that.
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