AI Coding Agent Plan Reviewer

A browser-based UI tool that lets developers leave inline comments and feedback on coding agent plans and markdown outputs with precision. Solves the painful UX of reviewing AI-generated code plans by making annotation natural and visual.

Coding agents like Cursor, Devin, and GitHub Copilot Workspace are pushing more planning artifacts — spec documents, task breakdowns, markdown outputs — into developer workflows, and the review UX for those artifacts is genuinely awkward right now, mostly happening in chat threads or raw markdown files. No clear incumbent owns this annotation layer specifically for AI-generated plans, which is a real gap. The $500–2k/mo revenue band is realistic but modest — this likely works as a per-seat tool charging $10–20/month, which means you need a few hundred engaged users to hit the ceiling, and developer tools at that price point live or die by workflow stickiness. The biggest risk is that the major coding agent platforms (Cursor, GitHub, etc.) build native annotation and review UX directly into their products within 12–18 months, which would eliminate the market before it matures.