Featured AI skill

The Editor

An AI skill that reviews a book manuscript the way a careful editor would, one chapter at a time or across the whole book. Every finding comes with a search string and a fix, and nothing in your manuscript changes until you approve it. I built it while editing The Missing Cipher, and it works for any book, fiction or nonfiction.

How it helps

  • Reviews in passesYour style guide and prose habits, house style and figures, facts that need a source, structure, voice, accessibility, and endnotes. A book review checks what only shows across chapters: repeated stories, cross-references, transitions and continuity.
  • Fixes you approveMake each change yourself from the search strings, or have approved fixes made for you in Google Docs, Word (as tracked changes) or text files. You choose when each batch runs, and every file is backed up first.
  • Work interactively or offlineGo through findings with your AI assistant, or get an offline review pack where you mark each finding Fix, Skip or Done and send your marks back.
  • Fiction modeAdds point of view, tense, dialogue, filter words and pacing, plus continuity against your continuity guide.
  • Setup is saved for reuseIt asks where your chapters live, your style guide, chapter format and writing habits, then saves the answers so the next review only asks what changed.
  • Tested with evalsAcross 12 test cases, 97% of checks passed with the Editor and 68% without it. See the results.

Install

Download editor.zip and upload it as a skill. For Claude, follow Claude’s guide to using skills. For Claude Code and other AI tools, see the install steps on the Editor page. Then ask for a chapter review in your own words.

Copyright © 2026 Michelle Brenner, Quill & Coin. Licensed under CC BY 4.0. Please keep this credit in any copy or adaptation, and note if you changed it: From The Missing Cipher: The Field Guide for Senior Software Engineers by Michelle Brenner, Quill & Coin.

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Licensed under CC BY 4.0. Please credit: From The Missing Cipher: The Field Guide for Senior Software Engineers by Michelle Brenner, Quill & Coin.

The Missing Cipher: The Field Guide for Senior Software Engineers : themissingcipher.com by Michelle Brenner
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