{
  "candidate_changes": [
    "exact upstream split-top-p fix",
    "bounded forced-logit dispatch receipts",
    "preweight kernel regression wrapper"
  ],
  "constants": [
    "model and revision",
    "all model flags and MTP3",
    "GPU allocation and order",
    "runtime/model cache volumes",
    "TP2 and C4 capacity",
    "request C1 64 reasoning / 512 total, max effort, temperature 0.6, top_p 0.95"
  ],
  "ignis": "hold",
  "inference": {
    "maximum_probe_invocations": 1,
    "maximum_requests": 2,
    "request_timeout_seconds": 120,
    "retries": 0,
    "second_case_only": "predeclared natural completion below boundary with correct first answer",
    "total_window_seconds": 300
  },
  "interpretation": "Functional kernel/boundary result distinct from independent answer oracle. Trace synchronization forbids performance comparison. One end-to-end probe is diagnostic only.",
  "kernel_gate": {
    "child_timeout_seconds": 180,
    "forced_cases": 8,
    "ordinary_parity_cases": 4,
    "tensor_peak_limit_bytes": 1073741824
  },
  "memory_phases": [
    "starting incumbent",
    "after image build",
    "during candidate start",
    "candidate ready",
    "after request and drain",
    "during incumbent restoration",
    "restored incumbent"
  ],
  "prior_baseline": "2026-10-25-reasoning-probe/live-1",
  "promoted": false,
  "restore": "exact copied incumbent registry with managed mode leave or failed-entry rollback",
  "schema": "sampling-fix-experiment/v1",
  "status": "preparing",
  "stop": [
    "kernel regression fail",
    "identity/launch/source mismatch",
    "nonzero engine occupancy",
    "memory pressure or OOM delta",
    "probe stop condition"
  ],
  "trace_gate": {
    "missing": "kernel_path_evidence=unknown; no adaptive rerun; restore incumbent",
    "required": "fresh serving-worker receipt between readiness and request completion, exclude preweight regression child PID; rows=4, has_k=0, finite_min/max=1, token154842_finite_rows=forced_rows",
    "scope": "Python dispatch-path evidence, not per-row kernel proof or timing"
  },
  "upstream_commit": "0a1276e5e3d9000488e7590cc0957edd709f2152",
  "window": {
    "candidate_startup_seconds": 900,
    "request_seconds": 300,
    "restoration_reserve_seconds": 1200,
    "rule": "Stop candidate measurement by 20 minutes; restoration continues if needed to restore service and any overrun is reported.",
    "target_seconds": 2700
  }
}