What problem does it solve? Writing documentation, proposals, and technical specs alone often produces documents full of blind spots, missing context, and 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 with the user, then drafts and iteratively refines using targeted edits. - Reader Testing: Validates the finished document with a fresh, context-free reviewer (sub-agent or manual test) to catch ambiguity, false assumptions, and contradictions. - Use Case: A product manager needs to write a decision doc for a new architecture. The Skill gathers project context, builds each section through brainstorming and curation, then tests the draft against realistic reader questions before stakeholders see it. ## Quick Start Ask the assistant to guide you through writing a technical spec or decision doc using the structured co-authoring workflow.