satellite-provider/_docs/03_implementation/implementation_completeness_cycle8_report.md

Product Implementation Completeness Gate — Cycle 8

Cycle: 8 Date: 2026-05-23 Scope: AZ-812, AZ-808, AZ-811, AZ-809, AZ-810 (4 batches; cycle theme: strict input validation at every public API endpoint)

Inputs Reviewed

• _docs/02_tasks/done/AZ-812_region_field_rename_to_osm.md
• _docs/02_tasks/done/AZ-808_region_endpoint_validation.md
• _docs/02_tasks/done/AZ-811_latlon_get_endpoint_validation.md
• _docs/02_tasks/done/AZ-809_route_endpoint_validation.md
• _docs/02_tasks/done/AZ-810_upload_metadata_validation.md
• _docs/02_document/architecture.md
• _docs/02_document/system-flows.md
• _docs/02_document/module-layout.md
• _docs/02_document/modules/api_program.md
• _docs/02_document/contracts/api/region-request.md v1.0.0 (this cycle)
• _docs/02_document/contracts/api/tile-latlon.md v1.0.0 (this cycle)
• _docs/02_document/contracts/api/route-creation.md v1.0.0 (this cycle)
• _docs/02_document/contracts/api/uav-tile-upload.md v1.2.0 (this cycle)
• _docs/02_document/contracts/api/error-shape.md v1.0.0 (cycle 7)
• _docs/03_implementation/batch_0{1,2,3,4}_cycle8_report.md
• _docs/03_implementation/reviews/batch_0{1,2,3,4}_cycle8_review.md
• _docs/03_implementation/cumulative_review_batches_01-04_cycle8_report.md
• Source code under each task's ownership envelope (SatelliteProvider.Api/Validators/*, SatelliteProvider.Api/Program.cs, SatelliteProvider.Common/DTO/{RequestRegionRequest, CreateRouteRequest, RoutePoint, GeofencePolygon, GeoPoint, UavTileMetadata}.cs, SatelliteProvider.Api/DTOs/GetTileByLatLonQuery.cs)

Per-Task Classification

AZ-812 — Region API field rename (Latitude/Longitude → Lat/Lon, OSM convention)

Verdict: PASS

Evidence (source code, not tests or reports):

• SatelliteProvider.Common/DTO/RequestRegionRequest.cs — record properties renamed from Latitude/Longitude to Lat/Lon. [JsonPropertyName("lat")] and [JsonPropertyName("lon")] attributes attached so the wire format is exactly {"lat":..,"lon":..}. Verified at the source.
• SatelliteProvider.Api/Program.cs::RequestRegion handler — accesses req.Lat/req.Lon instead of the pre-cycle-8 Latitude/Longitude. Verified by grep.
• scripts/run-performance-tests.sh — PT-03/04/05/07 JSON bodies use {"lat":..,"lon":..} after the rename.

Search for unresolved markers in modified source: no placeholder / TODO / NotImplemented / scaffold / fake matches.

End-to-end production pipeline check: POST /api/satellite/request accepts {"lat":..,"lon":..}, deserializes to RequestRegionRequest, handler reads req.Lat/req.Lon, downstream IRegionService + IRegionRequestQueue enqueues + returns the region ID. The legacy {"latitude":..,"longitude":..} shape is rejected at the deserializer level via UnmappedMemberHandling.Disallow (cycle 7). No mocks, no scaffolded fallbacks.

AZ-808 — Region POST strict validation

Verdict: PASS

Evidence (source code, not tests or reports):

• SatelliteProvider.Api/Validators/RegionRequestValidator.cs — FluentValidation AbstractValidator<RequestRegionRequest> with 6 rules: Id non-empty, Lat ∈ [-90, 90], Lon ∈ [-180, 180], SizeMeters ∈ [100, 10000], ZoomLevel ∈ [0, 22], StitchTiles is bool (handled via [JsonRequired]).
• SatelliteProvider.Common/DTO/RequestRegionRequest.cs — [JsonRequired] on Id, Lat, Lon, SizeMeters, ZoomLevel, StitchTiles (verified via earlier session reads).
• SatelliteProvider.Api/Program.cs:252 — .WithValidation<RequestRegionRequest>() chained onto the MapPost("/api/satellite/request", ...) endpoint. Verified via Grep.

Search for unresolved markers: no matches in RegionRequestValidator.cs.

End-to-end production pipeline check: any invalid POST /api/satellite/request (out-of-range, missing field, unknown field, type mismatch) is rejected before the handler runs — the request never reaches IRegionRequestQueue.EnqueueAsync or any database operation. ValidationProblemDetails (RFC 7807) returned per error-shape.md v1.0.0.

AZ-811 — lat/lon GET endpoint strict validation

Verdict: PASS

Evidence (source code, not tests or reports):

• SatelliteProvider.Api/DTOs/GetTileByLatLonQuery.cs — nullable record (double? Lat, double? Lon, int? Zoom) so missing values surface as null rather than the default-zero coercion the binder would otherwise apply. Required so the validator's NotNull rule can fire (instead of NotNull being shadowed by the default value).
• SatelliteProvider.Api/Validators/GetTileByLatLonQueryValidator.cs — CascadeMode.Stop + NotNull + range checks for Lat/Lon/Zoom.
• SatelliteProvider.Api/Validators/RejectUnknownQueryParamsEndpointFilter.cs — reusable filter that compares the request's query keys against an allow-list ([lat, lon, zoom]) and rejects unknown keys with the same ValidationProblemDetails shape.
• SatelliteProvider.Api/Program.cs:212-218 — MapGet("/api/satellite/tiles/latlon", ...) chain wires .AddEndpointFilter(new RejectUnknownQueryParamsEndpointFilter(new[] { "lat", "lon", "zoom" })) + .WithValidation<GetTileByLatLonQuery>() + .Produces<DownloadTileResponse>(200) + .ProducesProblem(400). Verified via Grep.
• SatelliteProvider.Api/Swagger/ParameterDescriptionFilter.cs — describes the lat/lon/zoom query parameters in OpenAPI (post-rename).

Search for unresolved markers: no matches.

End-to-end production pipeline check: GET /api/satellite/tiles/latlon?lat=...&lon=...&zoom=... either (a) reaches the handler with non-null nullable values (validator passed) and the .Value deref drives ITileService.DownloadTileAsync, OR (b) is rejected at the filter chain with HTTP 400 + ValidationProblemDetails. No silent default-zero coercion. No mocks on the success path.

AZ-809 — Route POST strict validation

Verdict: PASS

Evidence (source code, not tests or reports):

• SatelliteProvider.Common/DTO/{CreateRouteRequest, RoutePoint, GeofencePolygon, GeoPoint}.cs — [JsonRequired] annotations added to every non-optional axis. RoutePoint carries [JsonPropertyName("lat")]/[JsonPropertyName("lon")] for the OSM input wire.
• SatelliteProvider.Api/Validators/CreateRouteRequestValidator.cs — 7 root rules (id non-empty + 4 range rules on regionSizeMeters/zoomLevel + points count + cross-field createTilesZip ⇒ requestMaps) + RuleForEach(req => req.Points).SetValidator(new RoutePointValidator()) + RuleForEach(req => req.Geofences!.Polygons).SetValidator(new GeofencePolygonValidator()).OverridePropertyName("geofences.polygons"). The OverridePropertyName on the deep expression is documented inline because FluentValidation drops the parent path otherwise.
• SatelliteProvider.Api/Validators/RoutePointValidator.cs — OverridePropertyName("lat"/"lon") chained after each range rule so error keys match the wire format.
• SatelliteProvider.Api/Validators/GeofencePolygonValidator.cs — nested GeoCornerValidator (file-private) + cross-field NW-of-SE invariants on Lat (NW.Lat > SE.Lat) and Lon (NW.Lon < SE.Lon).
• SatelliteProvider.Api/Program.cs:268 — .WithValidation<CreateRouteRequest>() chained onto the MapPost("/api/satellite/route", ...) endpoint. Verified via Grep.

Search for unresolved markers: no matches.

End-to-end production pipeline check: any invalid POST /api/satellite/route is rejected before the handler runs. The handler delegates to IRouteService.CreateRouteAsync which (a) persists the route, (b) computes intermediate points via GeoUtils.Interpolate, (c) enqueues region requests if requestMaps=true. The validator runs strictly upstream of all three. The cross-field NW.Lat > SE.Lat rule prevents NaN-geometry payloads from reaching the interpolator. The pre-cycle-8 service-layer RouteValidator remains as a defence-in-depth backstop (documented in route-creation.md Validator Cleanup Advisory).

AZ-810 — UAV upload metadata strict validation (multipart envelope)

Verdict: PASS

Evidence (source code, not tests or reports):

• SatelliteProvider.Common/DTO/UavTileMetadata.cs — [JsonRequired] on Latitude/Longitude/TileZoom/TileSizeMeters/CapturedAt (UavTileMetadata record) and Items (UavTileBatchMetadataPayload record). FlightId deliberately stays nullable per AZ-503 anonymous-flight semantics; file-comment block documents the AZ-810 rationale.
• SatelliteProvider.Api/Validators/UavTileBatchMetadataPayloadValidator.cs — root validator: Items NotNull + NotEmpty + Must(<= MaxBatchSize) + RuleForEach(p => p.Items).SetValidator(new UavTileMetadataValidator(qualityConfig, timeProvider)). TimeProvider is threaded through to the per-item validator.
• SatelliteProvider.Api/Validators/UavTileMetadataValidator.cs — per-item validator: lat ∈ [-90, 90], lon ∈ [-180, 180], tileZoom ∈ [0, 22], tileSizeMeters > 0, capturedAt within [now - MaxAgeDays, now + CapturedAtFutureSkewSeconds]. FlightId intentionally not validated beyond JSON shape (rationale documented inline).
• SatelliteProvider.Api/Validators/UavUploadValidationFilter.cs — IEndpointFilter for the multipart endpoint. Reads the metadata form field, deserializes with the strict global JsonSerializerOptions (so UnmappedMemberHandling.Disallow applies), runs IValidator<UavTileBatchMetadataPayload>, then enforces items.Count == files.Count. FluentValidation errors prefixed with metadata. so wire key is metadata.items[0].latitude (full path).
• SatelliteProvider.Api/Program.cs:128 + 239 — builder.Services.AddTransient<UavUploadValidationFilter>() (line 128, transient lifetime: fresh instance per request; no shared mutable state to amortize) + .AddEndpointFilter<UavUploadValidationFilter>() (line 239 in the MapPost("/api/satellite/upload", ...) chain) + .Accepts<UavTileBatchUploadRequest>("multipart/form-data") + .Produces<UavTileBatchUploadResponse>(200) + .ProducesProblem(400). Verified via Grep.

Search for unresolved markers: no matches.

End-to-end production pipeline check: any invalid POST /api/satellite/upload is rejected before the handler runs — the request never reaches IUavTileUploadHandler.HandleAsync. The downstream handler retains its own envelope checks as defence-in-depth (covers direct handler callers in unit tests). For valid requests, the multipart body is buffered once by ReadFormAsync and the cached IFormCollection is reused by the downstream handler (ASP.NET caches it on the request). Per-item IUavTileQualityGate remains the byte-level quality gate (unchanged from AZ-488).

System Pipeline Audit

The cycle-8 work does NOT introduce new pipelines — it tightens the input validation on existing pipelines. The relevant production pipelines and their classifications:

Pipeline	Cycle-8 touchpoint	Classification	Evidence
POST /api/satellite/request → IRegionRequestQueue → IRegionService	AZ-808 validator + AZ-812 field rename added at the entry edge	WIRED	Program.cs:252 (validator chain) + handler reads req.Lat/req.Lon (post-rename)
GET /api/satellite/tiles/latlon → ITileService.DownloadTileAsync	AZ-811 validator + filter added at the entry edge	WIRED	Program.cs:212-218 (validator + filter chain) + handler .Value deref
POST /api/satellite/tiles/inventory → ITileService.GetInventoryAsync	Cycle 7 (InventoryRequestValidator) — not touched by cycle 8	WIRED (pre-existing)	Program.cs:227 (.WithValidation<TileInventoryRequest>())
POST /api/satellite/route → IRouteService.CreateRouteAsync	AZ-809 validator chain added at the entry edge	WIRED	Program.cs:268 (validator chain) + cross-field invariants + nested DTO chain
POST /api/satellite/upload → IUavTileUploadHandler.HandleAsync	AZ-810 multipart filter + validator added at the entry edge	WIRED	Program.cs:128 + 239 (DI registration + endpoint chain)

No pipeline is PARTIALLY WIRED or NOT WIRED. Every pipeline has its full validator chain in production code; the handlers are unchanged behaviorally (they retain pre-cycle-8 logic plus, where applicable, defence-in-depth backstops).

Gate Verdict: PASS

Every promise from the 5 cycle-8 task specs is implemented as production behaviour.

• No FAIL.
• No BLOCKED.
• No PARTIALLY WIRED.
• No remediation tasks required.
• Proceed to /implement Step 16 (Final Test Run). Per the existing-code flow, the next autodev step (Step 11 — Run Tests) owns the full-suite gate, so /implement Step 16 hands off to autodev Step 11 rather than re-running the suite.

Files / Symbols Checked

Production code:

• SatelliteProvider.Api/Program.cs (DI registrations + endpoint chains — lines 100-128 + 208-280)
• SatelliteProvider.Api/Validators/RegionRequestValidator.cs (AZ-808)
• SatelliteProvider.Api/Validators/GetTileByLatLonQueryValidator.cs (AZ-811)
• SatelliteProvider.Api/Validators/RejectUnknownQueryParamsEndpointFilter.cs (AZ-811)
• SatelliteProvider.Api/Validators/CreateRouteRequestValidator.cs (AZ-809)
• SatelliteProvider.Api/Validators/RoutePointValidator.cs (AZ-809)
• SatelliteProvider.Api/Validators/GeofencePolygonValidator.cs (AZ-809)
• SatelliteProvider.Api/Validators/UavTileBatchMetadataPayloadValidator.cs (AZ-810)
• SatelliteProvider.Api/Validators/UavTileMetadataValidator.cs (AZ-810)
• SatelliteProvider.Api/Validators/UavUploadValidationFilter.cs (AZ-810)
• SatelliteProvider.Api/DTOs/GetTileByLatLonQuery.cs (AZ-811)
• SatelliteProvider.Common/DTO/RequestRegionRequest.cs (AZ-812 + AZ-808)
• SatelliteProvider.Common/DTO/{CreateRouteRequest, RoutePoint, GeofencePolygon, GeoPoint}.cs (AZ-809)
• SatelliteProvider.Common/DTO/UavTileMetadata.cs (AZ-810)
• SatelliteProvider.Api/Swagger/ParameterDescriptionFilter.cs (AZ-811)

Cross-task scaffold-marker search (rg -i 'placeholder|TODO|NotImplemented|scaffold|fake' against SatelliteProvider.Api/Validators/): no matches in any cycle-8 production validator. The only return null is in GlobalValidatorConfig.cs:24 (cycle 7), inside the PropertyNameResolver callback where returning null means "use the default name policy" — that is the documented sentinel value, not a stub.

Cross-cycle architectural compliance: every cycle-8 production code addition lives in the cycle's existing ownership layer (SatelliteProvider.Api/Validators/ for validators + filters, SatelliteProvider.Common/DTO/ for DTOs). No public-API surface expansion in lower layers. No new cross-component dependencies.