{"surfaces": [{"surface": "host:disk/", "observation": "healthy", "method": "local_artifact", "summary": "1001.9GB free, 93851210 days of runway", "source": "statvfs:/", "read_at": "2026-10-11T06:30:18.131327+00:00", "detail": {"free_bytes": 1075811184640, "free_gb": 1001.93, "total_gb": 1001.93, "pct_free": 100.0, "floor_gb": 5.0, "samples": 941, "slope_gb_per_day": -0.0, "runway_days": 93851209.7}, "held_since": "2026-10-11T06:30:18.131327+00:00", "held_seconds": 0.0}, {"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 692s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-10-11T06:30:16.959695+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-10-11T06:18:45.346979+00:00", "silent_for_seconds": 691.6, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-10-11T06:30:16.959695+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "49.1GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-10-11T06:18:45.186040+00:00", "detail": {"runway_days": null, "free_bytes": 52681474048, "floor_gb": 5.0, "pct_free": 21.49, "free_gb": 49.06, "samples": 2011, "slope_gb_per_day": 1.168, "total_gb": 228.27, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.789356+00:00", "held_seconds": 44284.4, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 19.3h ago", "source": "brief-send-log.jsonl", "read_at": "2026-10-11T06:18:45.186523+00:00", "detail": {"row_count": 61, "age_hours": 19.31, "last_send_at": "2026-10-10T11:00:04.444077+00:00", "window_hours": 30.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.789829+00:00", "held_seconds": 44284.4, "reported_by": "kevin-mac"}, {"surface": "cron:gcal-sync", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "gcal-sync-heartbeat.json", "read_at": "2026-10-11T06:18:45.186684+00:00", "detail": {"age_hours": 0.15, "last_success": "2026-10-11T06:10:01.049301+00:00", "window_hours": 1.0, "withheld": ["collector_id", "counts", "received_at", "reported_method", "skipped", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.789881+00:00", "held_seconds": 44284.4, "reported_by": "kevin-mac"}, {"surface": "backup:baserow", "observation": "healthy", "method": "reported", "summary": "backup 22.3h old (32 retained)", "source": "infra-baserow-1:/baserow/backups", "read_at": "2026-10-11T06:18:45.253482+00:00", "detail": {"age_hours": 22.31, "newest": "baserow_backup_20261010_030000.tar.gz", "newest_at": "2026-10-10T08:00:00+00:00", "backup_count": 32, "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.933995+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "cron:comms-freshness", "observation": "healthy", "method": "reported", "summary": "last success 0.2h ago", "source": "comms-freshness-run.json", "read_at": "2026-10-11T06:18:45.253784+00:00", "detail": {"invoked_by": "interactive", "age_hours": 0.16, "alarm": true, "last_success": "2026-10-11T06:09:22.542551+00:00", "window_hours": 1.5, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.934341+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "service:staging-queue", "observation": "fault", "method": "reported", "summary": "no successful run in 35.4h (window 0.5h)", "source": "staging-queue-heartbeat.json", "read_at": "2026-10-11T06:18:45.254005+00:00", "detail": {"http_code": 200, "age_hours": 35.36, "last_success": "2026-10-09T18:56:53+00:00", "window_hours": 0.5, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.934725+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 16.3h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-10-11T06:18:45.254190+00:00", "detail": {"invoked_by": "distributor", "age_hours": 16.3, "last_success": "2026-10-10T14:00:52.098934+00:00", "outcome": "posted", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.935047+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 1.7h ago", "source": "devpost-heartbeat.json", "read_at": "2026-10-11T06:18:45.254357+00:00", "detail": {"age_hours": 1.67, "last_success": "2026-10-11T04:38:18.078373+00:00", "window_hours": 26.0, "withheld": ["collector_id", "hb_source", "received_at", "reported_method", "row", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.935230+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "cron:digest-hackfw", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-11T06:18:45.254540+00:00", "detail": {"age_hours": 0.15, "changed": false, "bytes": 42714, "brand": "hackfw", "last_success": "2026-10-11T06:10:00.860021+00:00", "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-10T18:00:40.935303+00:00", "held_seconds": 44284.3, "reported_by": "kevin-mac"}, {"surface": "cron:digest-tmb", "observation": "healthy", "method": "reported", "summary": "last success 0.1h 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