The harness defined per-query "valid" URIs as a tight enumeration: for "actor reentrancy semantics", valid = apple-docs://swift/actor OR swift-evolution://SE-0306 OR swift-evolution://SE-0327. Any URI not on the per-query list is counted as not-relevant, even if a human judge would call it useful.
Wins (4 queries where the regex matched a top-3 result):
| Query | First match rank | Match |
|---|---|---|
| actor reentrancy semantics | 1 | apple-docs://swift/actor |
| structured concurrency | (top-3) | apple-docs://swift/structured-concurrency |
| AsyncSequence iteration | 1 | apple-docs://swift/asyncsequence |
| preference keys SwiftUI | (top-3) | (one of the PreferenceKey variants) |
Misses (11 queries where top-3 contained nothing the regex recognised):
| Query | What top-3 actually returned |
|---|---|
| how to make a type Sendable | appentity, systemcoordinator, storekit-views |
| async let semantics | withtaskexecutorpreference, withtaskgroup variants |
| Result Builders proposal | SE-0373, SE-0326, SE-0348 (wrong SE numbers) |
| how does Observable invalidate views | xcode/analyzing-a-crash-report, SE-0373, SE-0492 |
| MainActor isolation | various SwiftUI style protocols |
| property wrappers Swift | appintents/parameter-resolution, coreml/mlmodel |
| Swift macros | appkit/macros, driverkit/driverkit-macros, widgetkit/preview-macros |
| SwiftUI App lifecycle | corelocation/supporting-live-updates-in-swiftui, nshostingscenerepresentation |
| NavigationStack programmatic navigation | understanding-the-composition-of-navigation-stack, navigation |
| error handling Swift async | fileprovider/.../requestdiagnosticcollection, contactprovider/contactprovidermanager |
| Combine to async/await migration | SE-0463, SE-0458 (Swift evolution proposals but not the expected ones) |