Blind coding of what decided each near-requirement claim (Oct 31). 66 language-model investigations in the 11 near-requirement worlds (6 thin-margin feasible, 5 reliability near misses), both Sparks. packets.py built the packets (decision rationale, next action, late reasoning excerpts; no arm, world, probability or outcome), three coders applied CODEBOOK_VARIATION.md blind, one batch each; codes_batch*.jsonl hold their codes, blind_key.json the join. board_data.py (transcripts) reads them. Agreement with the owner's unblinded codes on 18 local reliability-world investigations: 12/18.