{
  "recordedAt": "2026-09-08T14:07:07.333216+00:00",
  "actor": "Codex coding client",
  "evidence": [
    "baseline-1-scheduler-mcp.json",
    "baseline-1-worker-mcp.json",
    "config/worker.before.jsonnet"
  ],
  "finding": "The scheduler observed 15 queued actions and one executing action. The fixture has one worker execution slot; per-action CPU use is low. The independent waiting workload is constrained by available execution slots.",
  "change": "Change only runner concurrency from 1 to 4 in the same worker configuration.",
  "verificationPlan": "Run the unchanged target three times with local and remote action-cache reads disabled; compare successful remote action digests, worker execution durations, scheduler queue depth, and end-to-end build intervals.",
  "scope": "Synthetic local queue-capacity experiment; no production capacity or customer performance claim."
}