{"surfaces": [{"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 85s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-10-13T12:19:26.684246+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-10-13T12:18:01.622659+00:00", "silent_for_seconds": 85.1, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-10-13T12:19:26.684246+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "57.6GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-10-13T12:18:01.408620+00:00", "detail": {"slope_gb_per_day": 0.944, "free_gb": 57.55, "free_bytes": 61796216832, "pct_free": 25.21, "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": "2026-10-13T00:00:02.511678+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 1.2h ago", "source": "brief-send-log.jsonl", "read_at": "2026-10-13T12:18:01.408890+00:00", "detail": {"age_hours": 1.2, "row_count": 64, "last_send_at": "2026-10-13T11:05:46.442778+00:00", "window_hours": 30.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.511914+00:00", "held_seconds": 44278.9, "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": "2026-10-13T12:18:01.408949+00:00", "detail": {"age_hours": 0.13, "last_success": "2026-10-13T12:10:01.641452+00:00", "window_hours": 1.0, "withheld": ["collector_id", "counts", "received_at", "reported_method", "skipped", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.511971+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "backup:baserow", "observation": "healthy", "method": "reported", "summary": "backup 4.3h old (31 retained)", "source": "infra-baserow-1:/baserow/backups", "read_at": "2026-10-13T12:18:01.500727+00:00", "detail": {"age_hours": 4.3, "newest": "baserow_backup_20261013_030001.tar.gz", "backup_count": 31, "newest_at": "2026-10-13T08:00:01+00:00", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.649209+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:comms-freshness", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "comms-freshness-run.json", "read_at": "2026-10-13T12:18:01.501092+00:00", "detail": {"age_hours": 0.09, "last_success": "2026-10-13T12:12:53.426932+00:00", "alarm": true, "invoked_by": "scheduler", "window_hours": 1.5, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.649576+00:00", "held_seconds": 44278.9, "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": "2026-10-13T12:18:01.501171+00:00", "detail": {"age_hours": 0.04, "last_success": "2026-10-13T12:15:44+00:00", "http_code": 200, "window_hours": 0.5, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.649799+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 0.3h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-10-13T12:18:01.501229+00:00", "detail": {"age_hours": 0.3, "last_success": "2026-10-13T12:00:03.300418+00:00", "invoked_by": "cadence", "outcome": "posted", "window_hours": 26.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650012+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 7.7h ago", "source": "devpost-heartbeat.json", "read_at": "2026-10-13T12:18:01.501445+00:00", "detail": {"age_hours": 7.66, "last_success": "2026-10-13T04:38:30.066333+00:00", "window_hours": 26.0, "withheld": ["collector_id", "hb_source", "received_at", "reported_method", "row", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650264+00:00", "held_seconds": 44278.9, "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": "2026-10-13T12:18:01.501520+00:00", "detail": {"brand": "hackfw", "age_hours": 0.13, "last_success": "2026-10-13T12:10:01.473881+00:00", "changed": false, "bytes": 42714, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650407+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:digest-tmb", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "tmb-index.html.heartbeat.json", "read_at": "2026-10-13T12:18:01.501574+00:00", "detail": {"brand": "tmb", "age_hours": 0.13, "last_success": "2026-10-13T12:10:01.580546+00:00", "changed": false, "bytes": 37973, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650480+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:digest-fwdao", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "fwdao-index.html.heartbeat.json", "read_at": "2026-10-13T12:18:01.501625+00:00", "detail": {"brand": "fwdao", "age_hours": 0.13, "last_success": "2026-10-13T12:10:01.686170+00:00", "changed": false, "bytes": 56626, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650538+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}, {"surface": "cron:door", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-13T12:18:01.501675+00:00", "detail": {"brand": "door", "age_hours": 0.13, "last_success": "2026-10-13T12:10:01.964934+00:00", "changed": false, "bytes": 12254, "window_hours": 1.0, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-13T00:00:02.650592+00:00", "held_seconds": 44278.9, "reported_by": "kevin-mac"}], 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