{
  "schemaVersion": 1,
  "id": "probe-scale-300",
  "name": "Three hundred bounded probes",
  "description": "A synthetic 300-probe set is scheduled with bounded concurrency, duplicate suppression, cancellation and deterministic result ordering.",
  "initialState": {"probes": {"count": 300, "maxConcurrent": 16, "maxAttempts": 2}},
  "timeline": [
    {"atSeconds": 1, "action": "set-probe-result", "payload": {"probeId": "probe-000", "state": "up", "responseTimeMs": 8}},
    {"atSeconds": 2, "action": "set-probe-result", "payload": {"probeId": "probe-299", "state": "unknown", "errorClass": "timeout"}}
  ],
  "expectedOutcomes": [
    {"bySeconds": 2, "assertion": "All 300 probes are bounded by the worker pool and results are returned in deterministic probe ID order."},
    {"bySeconds": 2, "assertion": "A duplicate in-flight probe is skipped rather than overlapping, and timeout/retry attempts remain bounded."}
  ]
}