The alexander/ corpus (1000 facts, 15-properties framework) is sufficient substrate for Aliveness Battery without new primary research.

{
  "doc": "/Users/antonborzov/Documents/Claude/work/AboutBlank/strategy/2026-05-12_room-to-play-in-eval-cohort.md",
  "claim": "The alexander/ corpus (1000 facts, 15-properties framework) is sufficient substrate for Aliveness Battery without new primary research.",
  "horizon": "2026-09-30",
  "section": "The Alexander corpus is the instrument-design substrate",
  "category": "technical",
  "confidence": 0.7,
  "depends_on": [],
  "extracted_at": 1778899700,
  "extracted_by": "haiku-4-5",
  "status_check_log": [],
  "evidence_threshold": "PROPOSED: Aliveness Battery paper operationalizes all 15 properties using existing alexander/applied/ material; no gaps requiring new Alexander reading"
}