{"surfaces": [{"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 664s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-10-14T22:38:53.016610+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-10-14T22:27:49.382151+00:00", "silent_for_seconds": 663.6, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-10-14T22:38:53.016610+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "57.0GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-10-14T22:27:49.151973+00:00", "detail": {"free_gb": 56.97, "pct_free": 24.96, "slope_gb_per_day": 0.645, "runway_days": null, "floor_gb": 5.0, "total_gb": 228.27, "samples": 2011, "free_bytes": 61171326976, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.578103+00:00", "held_seconds": 44323.6, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 11.5h ago", "source": "brief-send-log.jsonl", "read_at": "2026-10-14T22:27:49.152258+00:00", "detail": {"window_hours": 30.0, "row_count": 65, "last_send_at": "2026-10-14T11:00:02.301904+00:00", "age_hours": 11.46, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.578542+00:00", "held_seconds": 44323.6, "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": "2026-10-14T22:27:49.152430+00:00", "detail": {"last_success": "2026-10-14T22:20:01.366265+00:00", "window_hours": 1.0, "age_hours": 0.13, "withheld": ["collector_id", "counts", "received_at", "reported_method", "skipped", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.578768+00:00", "held_seconds": 44323.6, "reported_by": "kevin-mac"}, {"surface": "backup:baserow", "observation": "healthy", "method": "reported", "summary": "backup 14.5h old (31 retained)", "source": "infra-baserow-1:/baserow/backups", "read_at": "2026-10-14T22:27:49.284593+00:00", "detail": {"backup_count": 31, "window_hours": 26.0, "newest_at": "2026-10-14T08:00:01+00:00", "newest": "baserow_backup_20261014_030001.tar.gz", "age_hours": 14.46, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.740597+00:00", "held_seconds": 44323.5, "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": "2026-10-14T22:27:49.284898+00:00", "detail": {"age_hours": 0.24, "last_success": "2026-10-14T22:13:07.422276+00:00", "window_hours": 1.5, "invoked_by": "scheduler", "alarm": true, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.741141+00:00", "held_seconds": 44323.5, "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": "2026-10-14T22:27:49.284960+00:00", "detail": {"http_code": 200, "last_success": "2026-10-14T22:26:19+00:00", "window_hours": 0.5, "age_hours": 0.03, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.741374+00:00", "held_seconds": 44323.5, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 8.4h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-10-14T22:27:49.285131+00:00", "detail": {"outcome": "posted", "last_success": "2026-10-14T14:01:16.246323+00:00", "window_hours": 26.0, "invoked_by": "distributor", "age_hours": 8.44, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.741602+00:00", "held_seconds": 44323.5, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 0.3h ago", "source": "devpost-heartbeat.json", "read_at": "2026-10-14T22:27:49.285316+00:00", "detail": {"last_success": "2026-10-14T22:08:39.574903+00:00", "window_hours": 26.0, "age_hours": 0.32, "withheld": ["collector_id", "hb_source", "received_at", "reported_method", "row", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.741823+00:00", "held_seconds": 44323.5, "reported_by": "kevin-mac"}, {"surface": "cron:digest-hackfw", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", 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"observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "fwdao-index.html.heartbeat.json", "read_at": "2026-10-14T22:27:49.286124+00:00", "detail": {"brand": "fwdao", "last_success": "2026-10-14T22:20:01.536168+00:00", "bytes": 56788, "window_hours": 1.0, "changed": false, "age_hours": 0.13, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.742487+00:00", "held_seconds": 44323.5, "reported_by": "kevin-mac"}, {"surface": "cron:door", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-14T22:27:49.286275+00:00", "detail": {"brand": "door", "last_success": "2026-10-14T22:20:01.965489+00:00", "bytes": 12254, "window_hours": 1.0, "changed": false, "age_hours": 0.13, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-14T10:09:05.742695+00:00", 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