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Test Your Doc on a Stranger: Anthropic's Doc Co-Authoring Skill

Anthropic's own writing skill ends by testing your document on a fresh Claude that knows nothing about it. What it checks, how to run the test by hand in Claude, and the catch

2min read
1prompts to copy
9numbered steps
4sections

Anthropic published a skill that helps you write a document in three stages. The last stage is the useful one: a fresh Claude, with no context, reads your document and shows where a real reader would get lost.

Here's what it checks, how to run the test yourself, a prompt to paste, and the catch.

What the test finds

  1. Questions a reader would really ask, and whether the stranger answers them correctly from your document alone.
  2. What your document assumes the reader already knows.
  3. Ambiguous or unclear parts.
  4. Contradictions inside the document.

Run it by hand

  1. Finish your draft (an essay, proposal, report or plan).
  2. Ask Claude for 5 to 10 questions a reader would realistically ask about it.
  3. Open a brand-new Claude chat so it has no context from your drafting.
  4. Paste only the document, then ask those questions one at a time.
  5. Check what the new chat got wrong, fix those parts, and repeat until it answers cleanly.
ASK THE STRANGER
Here is a document. Answer my questions using only this document.
What in this doc might be ambiguous or unclear to readers?
What knowledge or context does this doc assume readers already have?
Are there any internal contradictions or inconsistencies?

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Get the full setup steps + the copy-paste setup prompt

The rest of this guide (2 more sections) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.

Unlocks: The catch · Sources

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