{
  "namespace": "wsrf-heads-up-zones-2026-09-19-extension-v1",
  "status": "registered",
  "design": [
    {
      "name": "main",
      "samples": 128,
      "blocks": 8,
      "hands_per_block": 20000
    },
    {
      "name": "sensitivity",
      "samples": 256,
      "blocks": 4,
      "hands_per_block": 10000
    }
  ],
  "policies": {
    "selected": {
      "file": "player.json",
      "sha256": "1c50583926cc485d9ee009742d58b503af8774d450d7613d7131d3fbba77fe3d"
    },
    "last_round": {
      "file": "round-6.json",
      "sha256": "3e211d5a6d2a257e5dd4dec9b5bd5fc157b33b83fe284cc0ac642c47d92008fb"
    },
    "without_zones": {
      "file": "no-zones.json",
      "sha256": "593fadfaad815b9c06c3e0f6ac0f3f5803a56ab66bb0d68c3b2aaa2a8317a02b"
    },
    "reference": {
      "policy": "conventional LAG with public HUD reads"
    }
  },
  "planned_hands": 1600000,
  "selection": "Frozen before these seeds. This test makes zero model or threshold selections.",
  "confidence": "Student t intervals across independent seeded match blocks, with fresh HUD priors per block. Paired model differences use matching blocks. Each block rotates seats on each deck and balances stack depths.",
  "primary": "Final-round zones minus zone-free fit on identical replay, equal total tree count; assessed separately for TAG and LAG.",
  "secondary": "Served checkpoint absolute return and difference from conventional reference; pocket-zone descriptions; doubled equity sampling sensitivity.",
  "scope": "Local 40/100 BB heads-up opponents, practice chips, zero rake. Zone association is distinct from a controlled policy improvement."
}