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Doc Co-Authoring

A guided workflow for writing proposals, specs and decision docs with Claude.

Official Anthropicby AnthropicChecked October 18, 2026

An Anthropic skill that turns writing a structured document into a step-by-step collaboration. Claude first collects your context, then shapes, drafts and tests the document so it works for the people who will read it.

Who it is for

  • Product managers
  • Team leads
  • Consultants
  • Founders

Prompts to try

Once the skill is installed, ask for the result in plain words. Claude picks the skill up on its own.

Prompt 1
Help me write a proposal for moving our support team to a four-day week
Prompt 2
Let's co-write a decision doc comparing two CRM options
Prompt 3
I need a technical spec for our new signup flow, walk me through it

How to install it

In Claude Code

  1. /plugin marketplace add anthropics/skills
  2. /plugin install example-skills@anthropic-agent-skills

In Claude.ai

Turn it on among Anthropic's example skills under Customize > Skills (code execution required), or upload its folder from anthropics/skills as a zip.

Good to know

Bundled in the example-skills plugin of anthropics/skills.

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How we checked it

Confirmed SKILL.md at skills/doc-coauthoring/SKILL.md in anthropics/skills via the GitHub API; skill folder last changed 2025-12-04, repo has 181,779 stars and was pushed 2026-10-09; the skill was added in December 2025 and the repo itself stays actively maintained.

Source: github.com/anthropics/skills/tree/main/skills/doc-coauthoring

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