{"surfaces": [{"surface": "collector:kevin-mac", "observation": "healthy", "method": "local_artifact", "summary": "collector kevin-mac last reported 56s ago, inside its declared 1800s deadline", "source": "verify:collector_liveness", "read_at": "2026-10-16T06:37:20.979262+00:00", "detail": {"liveness": "live", "cadence_seconds": 900.0, "silent_after_seconds": 1800.0, "last_report_at": "2026-10-16T06:36:24.811856+00:00", "silent_for_seconds": 56.2, "withheld": ["collector_id", "declared_surfaces"]}, "held_since": "2026-10-16T06:37:20.979262+00:00", "held_seconds": 0.0}, {"surface": "host:mac/disk", "observation": "healthy", "method": "reported", "summary": "53.2GB free, not shrinking", "source": "statvfs:/", "read_at": "2026-10-16T06:36:24.541952+00:00", "detail": {"free_gb": 53.19, "pct_free": 23.3, "slope_gb_per_day": 0.18, "runway_days": null, "floor_gb": 5.0, "total_gb": 228.27, "samples": 2011, "free_bytes": 57113841664, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.506711+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "cron:morning-brief", "observation": "healthy", "method": "reported", "summary": "brief sent 19.6h ago", "source": "brief-send-log.jsonl", "read_at": "2026-10-16T06:36:24.542408+00:00", "detail": {"window_hours": 30.0, "row_count": 66, "last_send_at": "2026-10-15T11:02:30.411105+00:00", "age_hours": 19.57, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.507140+00:00", "held_seconds": 44298.0, "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": "2026-10-16T06:36:24.542888+00:00", "detail": {"last_success": "2026-10-16T06:30:01.243624+00:00", "window_hours": 1.0, "age_hours": 0.11, "withheld": ["collector_id", "counts", "received_at", "reported_method", "skipped", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.507347+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "backup:baserow", "observation": "healthy", "method": "reported", "summary": "backup 22.6h old (31 retained)", "source": "infra-baserow-1:/baserow/backups", "read_at": "2026-10-16T06:36:24.692053+00:00", "detail": {"backup_count": 31, "window_hours": 26.0, "newest_at": "2026-10-15T08:00:00+00:00", "newest": "baserow_backup_20261015_030000.tar.gz", "age_hours": 22.61, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.659464+00:00", "held_seconds": 44298.0, "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": "2026-10-16T06:36:24.692503+00:00", "detail": {"age_hours": 0.38, "last_success": "2026-10-16T06:13:20.091785+00:00", "window_hours": 1.5, "invoked_by": "scheduler", "alarm": true, "withheld": ["collector_id", "received_at", "reported_method", "stale", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.659921+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "service:staging-queue", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "staging-queue-heartbeat.json", "read_at": "2026-10-16T06:36:24.692718+00:00", "detail": {"http_code": 200, "last_success": "2026-10-16T06:31:51+00:00", "window_hours": 0.5, "age_hours": 0.08, "withheld": ["collector_id", "probe", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.660152+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "cron:kai-cadence", "observation": "healthy", "method": "reported", "summary": "last success 14.1h ago", "source": "kai-cadence-heartbeat.json", "read_at": "2026-10-16T06:36:24.693090+00:00", "detail": {"outcome": "posted", "last_success": "2026-10-15T16:30:03.026099+00:00", "window_hours": 26.0, "invoked_by": "cadence", "age_hours": 14.11, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.660379+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "cron:devpost", "observation": "healthy", "method": "reported", "summary": "last success 2.0h ago", "source": "devpost-heartbeat.json", "read_at": "2026-10-16T06:36:24.693435+00:00", "detail": {"last_success": "2026-10-16T04:38:46.733293+00:00", "window_hours": 26.0, "age_hours": 1.96, "withheld": ["collector_id", "hb_source", "received_at", "reported_method", "row", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.660604+00:00", "held_seconds": 44298.0, "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": "2026-10-16T06:36:24.693796+00:00", "detail": {"brand": "hackfw", "last_success": "2026-10-16T06:30:01.099473+00:00", "bytes": 42714, "window_hours": 1.0, "changed": false, "age_hours": 0.11, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.660843+00:00", "held_seconds": 44298.0, "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": "2026-10-16T06:36:24.693982+00:00", "detail": {"brand": "tmb", "last_success": "2026-10-16T06:30:01.251622+00:00", "bytes": 37973, "window_hours": 1.0, "changed": false, "age_hours": 0.11, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.661060+00:00", "held_seconds": 44298.0, "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": "2026-10-16T06:36:24.694303+00:00", "detail": {"brand": "fwdao", "last_success": "2026-10-16T06:30:01.404074+00:00", "bytes": 56809, "window_hours": 1.0, "changed": false, "age_hours": 0.11, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.661259+00:00", "held_seconds": 44298.0, "reported_by": "kevin-mac"}, {"surface": "cron:door", "observation": "healthy", "method": "reported", "summary": "last success 0.1h ago", "source": "index.html.heartbeat.json", "read_at": "2026-10-16T06:36:24.694624+00:00", "detail": {"brand": "door", "last_success": "2026-10-16T06:30:01.814228+00:00", "bytes": 12254, "window_hours": 1.0, "changed": false, "age_hours": 0.11, "withheld": ["collector_id", "received_at", "reported_method", "wire_row_id"]}, "held_since": "2026-10-15T18:18:06.661473+00:00", 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