Reviews changes for contract stability — public API surface vs WinUI parity (binary/source compat, [Uno.NotImplemented] handling, DependencyProperty registration), public surface minimality, and test fidelity (do tests validate behavior/parity, not implementation internals?). Use after a change that touches public…
Audits changes for performance hazards on all targets — blocking calls, async void time-bombs, source-generator allocation/cancellation discipline, layout/render hot-path allocations, property-system boxing, idle CPU toll, and WASM memory growth. Invoke with the change scope and the modules it touches.
Validates that a change correctly addresses its stated requirement, evaluates solution elegance, checks for duplication across platform partials and missed refactoring, verifies sample/test coverage, and flags comment pollution. Use after a change is drafted to verify the solution solves the right problem in the right…