What problem does it solve? Writing documentation, proposals, and technical specs alone often produces documents full of blind spots, missing context, and unclear sections that confuse readers. This Skill structures the co-authoring process so the final document actually works for its intended audience. ## Core Features & Use Cases - Three-Stage Workflow: Guides users through Context Gathering, Refinement & Structure, and Reader Testing for any structured document. - Section-by-Section Drafting: Brainstorms 5-20 options per section, curates content with the user, and iteratively refines drafts using targeted edits. - Reader Testing: Validates the finished document with a fresh, context-free reviewer to catch ambiguity, false assumptions, and contradictions before publication. - Use Case: A product manager needs to write a decision doc for a new architecture. The Skill gathers project context, drafts each section through brainstorming and curation, then tests the doc against realistic reader questions to expose gaps. ## Quick Start Ask the assistant to help you write a design doc or proposal using the structured co-authoring workflow, starting with context gathering.