What problem does it solve? Builders cannot neutrally judge their own work, so self-reported QA often misses gaps between the design spec and the running application. This Skill provides an independent review pass that verifies every claim through direct observation. ## Core Features & Use Cases - Independent observation: Reads the backlog slice record, design file, and data spec directly, never consulting the builder's QA manifest or self-report. - Full verification pass: Screenshots the running app, checks console and network errors, tests interactions, resizes to mobile, and reads the data store directly to confirm written data. - Binary verdicts: Returns only CLEARED or GAPS with specific expected-vs-observed entries for every done criterion, design data point, and quality contract item. - Use Case: After a builder signals QA complete on a slice, run this review to confirm the login form matches the design file, the user record actually exists in the database, and all done criteria pass before advancing the slice to In Test. ## Quick Start Ask the review agent to independently review slice SL-12 using the backlog, design file, data spec, and review URL, and return a CLEARED or GAPS verdict.