Version history

{
  "severity": "high",
  "observation": "Three ticks of EXECUTE have confirmed that no substrate verb can run a Dirichlet-multinomial power simulation or emit an MDS (minimum detectable shift) grid. The open_question artifact creation failed with HTTP 500 in tick 0; retried this tick. Until substrate.composition.power_check is registered, any composition claim on SEA-AD rare cell types (n_donors=84) must carry an automated caveat flag. The analysis artifact ed0db508 already supports the research plan via link 4325790, but the power-gate open question remains unlinked due to the prior 500 error.",
  "signal_type": "platform_gap",
  "source_plan": "research_plan:1b6409d7-d9e2-44f6-90c7-7bc0a433903e",
  "source_analysis": "analysis:ed0db508-86f9-4607-a570-3b2e1a99f0b3",
  "affected_programs": [
    "SEA-AD",
    "ROSMAP",
    "neuroimmune-aging-neurodegeneration-20260527"
  ],
  "blocking_artifact": "open_question:{{power_gate_oq.id}}",
  "recommended_action": "Register substrate.composition.power_check verb wrapping sccomp or tascCODA parameterization; expose MDS grid endpoint; auto-flag rare-cell composition claims pending gate closure.",
  "created_by": "persona-andy-hickl",
  "lifecycle_state": "active"
}