frontend-patterns/research/reviews/NavigationCoverage.md

# Research stream coverage — 2026-09-26

WP-0003 T01 working matrix. Entries mark located evidence, not completed streams.

| Stream | Current evidence | Key gap / disagreement |
| --- | --- | --- |
| A — GUI architecture | [B01/B02](PatternBreadthExpansion.md): Presentation Model and selectors | Independent application uses and comparison with other controller/state models |
| B — Navigation/hypermedia | [N01–N04/N06](NavigationRenderingEvidence.md): htmx, SvelteKit and browser history | Framework examples versus pinned application behavior; direct entry versus transient state |
| C — Rendering/execution | [N05](NavigationRenderingEvidence.md): SvelteKit HTML/client options; existing SRC-0001 interpretation | [B04](PatternBreadthExpansion.md) adds client-island docs; implementation comparisons and performance evidence remain missing |
| D — Authority/synchronization | [Transactional evidence](TransactionalEvidenceExpansion.md), [frontend recovery](FrontendRecoveryImplementations.md), [Matrix experiment](MatrixRecoveryExperiment.md) | Synthetic receiver cannot prove production durability/deduplication; canonical admission remains open |
| E — Composition/organization | [B03](PatternBreadthExpansion.md): feature grouping and public interfaces | Independent feature/deployment boundaries and their operational cost |
| F — Quality | Retention/recovery guidance; [B05/B06](PatternBreadthExpansion.md): rendering failures and modal focus | No accessibility/performance validation; no-script support is narrower than resilience |

The user subsequently requested broader coverage: six drafts and documentary probes
were added in the breadth review. Implementation evidence for B/C remains pending.
All six streams now have some documentary material; none is thereby complete.
VC-01/02 are synthetic reviewed drafts; VC-03 is provisional; VC-04–10 remain planned.
No source count is used as a recurrence score or evidence-gate substitute.

Boundary follow-up: [React/Radix browser observations](BoundaryRecoveryExperiment.md)
add bounded executable evidence to F. Nested dismissal remains timing-sensitive;
no screen-reader verification or full quality-stream completion.