An AI writing filter for MCP clients

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Prose Coach is a writing filter for AI-assisted drafts. Connect one URL to Claude, Cursor, or Codex, then ask it to check your draft against 43 patterns that make writing read as machine-made. Instead of a score you get a per-draft coaching brief: the specific lines to change, the rules behind each one, and a three-pass protocol covering line-level habits, repetition and structure, then final voice drift. Edits adapt to the content type, and intentional voice is preserved. A browser scanner on prose.coach returns fixes for pasted text with no account needed. Free tier covers three drafts a day up to 12,000 characters; Pro is $5/month or $50/year.
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