Raw X/Y and controls assembled from IDATs equal the vendor GTC arrays for 2138/2141 samples x 2.45M loci; 3 single-locus differences are recorded as K-009 (probable per-channel missing rule in AutoCall 1.6.2.2). Channel order X=Red confirmed (U1). `simurg ingest` processed all 2141 samples in 19 min (I/O-bound). AWS run cost ~$0.34 and left no resources. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01814GKVzZVL3FuF3DeiZXhv