# Typed INFEASIBLE record (cadrage §15 / runbook §9 / ADR-0102 Invariant 4). A typed INFEASIBLE is a SUCCESSFUL S02 outcome.
infeasible_id: cost-data-20260622
story: CVN-N001-EK-S02
reason: cost-data
trigger: >
  No Tier A/B P90 cost evidence available without authorized cluster/in-pod data access. No local observed
  fill/cost logs; operator (2026-06-22, Option 2) authorized no read-only source. The only existing cost is the
  cost-sensitivity report's model-defined SWEPT round-trip {30,40,50,70} bps — not observed fills at comparable
  asset/venue/size/regime; Tier A: no, Tier B: no, Tier C at best (weak proxy, non-lockable).
failed_derivation: p90_cost (cadrage §3)
evidence_attempted: >
  read-only local assessment (OHLCV cache dir / fills / cost logs / parquet) — none present; cost-sensitivity
  report reviewed = model-defined swept proxy only.
allowed_next_action: >
  instrument observed transaction costs (fills at comparable asset/venue/size/regime) as separate work; this is
  NOT an S02 task. Not allowed: use proxy/Tier-C/Tier-D cost to proceed to an S03 lock; weaken E_pred_min;
  change the metric to pass; port-forward / in-pod query / cluster access to bypass.
blocked_downstream: S03 (charter lock) — blocked on cost
required_remediation_artifact: signed observed-fill/cost dataset at the reference order size (Tier A/B)
verdict_status: INFEASIBLE (successful S02 outcome, not a failure)
author: operator-directed (CVN-N001-EK-S02), Option 2
timestamp: 2026-06-22