{
  "base_revision": "28a7de40fda93fdfc6dfcb4e314c3603890ec297",
  "decision": "Both transport prototypes rejected; production read transport remains REST.",
  "profiles": {
    "full": {
      "rounds_in_execution_order": [
        "full-rest-1.json",
        "full-grpc-1.json",
        "full-grpc-2.json",
        "full-rest-2.json"
      ],
      "summary": "full-summary.json",
      "responses": 72000,
      "tracked_patch": "full-tracked.patch",
      "module": "full-reads.rs"
    },
    "hybrid": {
      "rounds_in_execution_order": [
        "hybrid-rest-1.json",
        "hybrid-hybrid-1.json",
        "hybrid-hybrid-2.json",
        "hybrid-rest-2.json"
      ],
      "summary": "hybrid-summary.json",
      "responses": 72000,
      "tracked_patch": "hybrid-tracked.patch",
      "module": "hybrid-reads.rs"
    }
  },
  "reproduction": "Apply the selected tracked patch to the base revision, then copy its corresponding reads.rs file to src/grpc_reads.rs. Build before timing. For each prototype use the same image for REST and opt-in runs; unset QDRANT_GRPC_URL for REST, or set it to the Qdrant gRPC service on port 6334. Preserve corpus and caps. Run REST,opt-in,opt-in,REST with TRACK_TOTAL_HITS=true REQUESTS=200 TRIALS=3 WARMUP=40 using compare_reads.py.",
  "measurement_notes": [
    "All eight paired rounds use exact totals and strict response checks, including sources, sort values and buckets. Each prototype contributes 72000 measured responses.",
    "Transport provenance grpc_opt_in identifies all-read gRPC in the full prototype and get/scroll/facet gRPC with REST counts in the hybrid prototype. Writes remain REST.",
    "Each round records image IDs and resource limits. No builds, tests or ingestion ran during timing.",
    "A separately retained disabled-total REST-only diagnostic is not a paired comparison and is excluded from summaries and the 144000-response paired count."
  ],
  "unpaired_diagnostic": "disabled-rest-diagnostic.json"
}