{"surfaces": [{"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 93s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-10-12T12:43:23.857904+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-10-12T12:41:51.331380+00:00", "silent_for_seconds": 92.5, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-10-12T12:43:23.857904+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "59.5GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-10-12T12:41:51.071033+00:00", "detail": {"slope_gb_per_day": 1.06, "free_gb": 59.49, "free_bytes": 63875497984, "pct_free": 26.06, "samples": 2011, "floor_gb": 5.0, "runway_days": null, "total_gb": 228.27, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.753321+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 1.6h ago", "source": "brief-send-log.jsonl", "read_at": "2026-10-12T12:41:51.071108+00:00", "detail": {"age_hours": 1.64, "row_count": 63, "last_send_at": "2026-10-12T11:03:23.591696+00:00", "window_hours": 30.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.753616+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:gcal-sync", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "gcal-sync-heartbeat.json", "read_at": "2026-10-12T12:41:51.071151+00:00", "detail": {"age_hours": 0.03, "last_success": "2026-10-12T12:40:01.308889+00:00", "window_hours": 1.0, "withheld": ["collector_id", "counts", "received_at", "reported_method", "skipped", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.753683+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "backup:baserow", "observation": "healthy", "method": "reported", "summary": "backup 4.7h old (31 retained)", "source": "infra-baserow-1:/baserow/backups", "read_at": "2026-10-12T12:41:51.143641+00:00", "detail": {"age_hours": 4.7, "newest": "baserow_backup_20261012_030000.tar.gz", "backup_count": 31, "newest_at": "2026-10-12T08:00:00+00:00", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.891347+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:comms-freshness", "observation": "healthy", "method": "reported", "summary": "last success 0.5h ago", "source": "comms-freshness-run.json", "read_at": "2026-10-12T12:41:51.143755+00:00", "detail": {"age_hours": 0.49, "last_success": "2026-10-12T12:12:44.128568+00:00", "alarm": true, "invoked_by": "scheduler", "window_hours": 1.5, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.891738+00:00", "held_seconds": 44285.3, "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": "2026-10-12T12:41:51.143803+00:00", "detail": {"age_hours": 0.03, "last_success": "2026-10-12T12:40:20+00:00", "http_code": 200, "window_hours": 0.5, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.891823+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 0.7h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-10-12T12:41:51.143840+00:00", "detail": {"age_hours": 0.66, "last_success": "2026-10-12T12:02:05.134935+00:00", "invoked_by": "cadence", "outcome": "posted", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892011+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 8.1h ago", "source": "devpost-heartbeat.json", "read_at": "2026-10-12T12:41:51.143880+00:00", "detail": {"age_hours": 8.06, "last_success": "2026-10-12T04:38:24.598973+00:00", "window_hours": 26.0, "withheld": ["collector_id", "hb_source", "received_at", "reported_method", "row", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892229+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:digest-hackfw", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-12T12:41:51.143930+00:00", "detail": {"brand": "hackfw", "age_hours": 0.03, "last_success": "2026-10-12T12:40:00.803421+00:00", "changed": false, "bytes": 42714, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892318+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:digest-tmb", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "tmb-index.html.heartbeat.json", "read_at": "2026-10-12T12:41:51.143968+00:00", "detail": {"brand": "tmb", "age_hours": 0.03, "last_success": "2026-10-12T12:40:00.913047+00:00", "changed": false, "bytes": 37973, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892383+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:digest-fwdao", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "fwdao-index.html.heartbeat.json", "read_at": "2026-10-12T12:41:51.144004+00:00", "detail": {"brand": "fwdao", "age_hours": 0.03, "last_success": "2026-10-12T12:40:01.091488+00:00", "changed": false, "bytes": 56626, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892443+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}, {"surface": "cron:door", "observation": "healthy", "method": "reported", "summary": "last success 0.0h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-12T12:41:51.144041+00:00", "detail": {"brand": "door", "age_hours": 0.03, "last_success": "2026-10-12T12:40:01.490096+00:00", "changed": false, "bytes": 12254, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-12T00:23:45.892504+00:00", "held_seconds": 44285.3, "reported_by": "kevin-mac"}], 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