I built this because I got rejected from W25 (AI tutor idea) and wanted to sanity check my future apps based on what empirical indicators I could find.
Here is how it works: Vector Search: Checks your idea against 5,000+ past YC companies (successes and failures). Rubric Analysis: Evaluates the startup mechanics based on criteria extracted from YC Startup School and Paul Graham's essays.
Tested it on a few friends building stuff. Correctly identified a VS Code docs extension as a nice-to-have / low urgency (Fail). Gave a pass to a campus sublet marketplace, but correctly flagged the chicken and egg supply risk.