What problem does it solve? Proving that a reviewed implementation actually meets approved requirements requires more than running existing tests. This Skill provides a staged, evidence-driven validation workflow that investigates current API/E2E coverage, maintains durable tests, executes repository and realistic system checks, and classifies residual risks and failures truthfully. ## Core Features & Use Cases - Coverage Investigation: Maps requirements and acceptance criteria to changed boundaries, inventories existing durable tests, and decides which to keep, update, replace, or remove. - Staged Execution with Confidence Scoring: Runs repository checks from narrowest to broadest scope, then scores validation confidence across seven mandatory categories with percentage anchors before deciding on broader validation. - Browser-Preferred Desktop Validation: Validates web-equivalent Electron/desktop behavior through the project's browser development path, reserving actual desktop execution for shell-specific last-resort evidence. - Use Case: After a code review passes on a new authentication flow, use this Skill to inventory existing E2E tests, add durable coverage for the changed session boundary, execute the suites, run a browser journey for the login flow, and produce an execution coverage report with a 95% confidence decision. ## Quick Start Use the api-e2e-engineer skill to validate the reviewed implementation against the approved requirements and produce the coverage investigation and execution report.
