{"surfaces": [{"surface": "host:disk/", "observation": "healthy", "method": "local_artifact", "summary": "503.8GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-09-27T16:26:30.213271+00:00", "detail": {"free_bytes": 540987613184, "free_gb": 503.83, "total_gb": 503.83, "pct_free": 100.0, "floor_gb": 5.0, "samples": 13, "slope_gb_per_day": 0.0, "runway_days": null}, "held_since": "2026-09-27T16:26:30.213271+00:00", "held_seconds": 0.0}, {"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 71s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-09-27T16:26:28.962959+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-09-27T16:25:18.066759+00:00", "silent_for_seconds": 70.9, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-09-27T16:26:28.962959+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "40.5GB free, 44 days of runway", "source": "statvfs:/", "read_at": "2026-09-27T16:25:17.799578+00:00", "detail": {"samples": 2011, "free_bytes": 43459821568, "runway_days": 43.7, "slope_gb_per_day": -0.811, "total_gb": 228.27, "floor_gb": 5.0, "free_gb": 40.48, "pct_free": 17.73, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-09-27T04:07:13.979713+00:00", "held_seconds": 44283.8, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 5.4h ago", "source": "brief-send-log.jsonl", "read_at": "2026-09-27T16:25:17.800035+00:00", "detail": {"last_send_at": "2026-09-27T11:01:25.939225+00:00", "row_count": 48, "age_hours": 5.4, "window_hours": 30.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": 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["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-09-27T04:07:14.075769+00:00", "held_seconds": 44283.8, "reported_by": "kevin-mac"}, {"surface": "cron:comms-freshness", "observation": "healthy", "method": "reported", "summary": "last success 0.4h ago", "source": "comms-freshness-run.json", "read_at": "2026-09-27T16:25:17.874087+00:00", "detail": {"invoked_by": "interactive", "window_hours": 1.5, "age_hours": 0.45, "last_success": "2026-09-27T15:58:26.977653+00:00", "alarm": true, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-09-27T04:07:14.076440+00:00", "held_seconds": 44283.8, "reported_by": "kevin-mac"}, {"surface": "service:staging-queue", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "staging-queue-heartbeat.json", "read_at": "2026-09-27T16:25:17.874268+00:00", "detail": {"http_code": 200, "age_hours": 0.02, "last_success": "2026-09-27T16:24:08+00:00", "window_hours": 0.5, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-09-27T04:07:14.076711+00:00", "held_seconds": 44283.8, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 0.9h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-09-27T16:25:17.874431+00:00", "detail": {"invoked_by": "cadence", "age_hours": 0.86, "last_success": "2026-09-27T15:33:44.524883+00:00", "outcome": "posted", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-09-27T04:07:14.077262+00:00", "held_seconds": 44283.8, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 11.9h ago", "source": "devpost-heartbeat.json", "read_at": "2026-09-27T16:25:17.874851+00:00", "detail": {"age_hours": 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