What problem does it solve? Turning rough ideas, notes, or PRDs into clear, review-ready technical design documents is slow and often produces bloated, template-driven docs that senior engineers won't read. This Skill writes concise, example-grounded TDs and reviews existing ones for gaps and weak assumptions. ## Core Features & Use Cases - Five operating modes: Draft a TD from an idea or notes, review an existing TD for risks and reviewer objections, spar on unsettled designs, compare alternatives with a recommendation, or compress messy notes into a polished document. - Notion-ready output: Writes the document to a local markdown file using only headings, tables, checkboxes, and formatting that paste cleanly into Notion. - Senior-reviewer critique: Flags unclear problems, vague claims, missing migration plans, and padding with severity ratings and suggested fixes. - Use Case: An engineer pastes a Slack thread about redesigning an API and receives a tight one-page TD file with concrete code examples, rejected alternatives, and open questions, ready to share for review. ## Quick Start Ask the assistant to draft a technical design document from your notes or issue description and save it as a markdown file.