The caddy tail worker (DC-112) was 100% dead in prod: no /var/log/caddy
mount, no CADDY_ACCESS_LOG env, no global access log in the Caddyfile.
Store census 45,912 events, 100% source_type 'api', ZERO 'caddy'.
- createTail: firstStartMaxBytes (5 MiB) bounds first-ever-start replay
against a long-lived access.log; multi-chunk partial-line discard on
the jump; normal restarts resume at exact persisted offset (judge r1
fix-first fold)
- worker: self-noise filter drops our own probe UAs
(DashCaddy-Probe/1.0, DashCaddy-HealthCheck/1.0) from the derived
store — raw log keeps everything; ~50-100 events/min of probe noise
would otherwise bury perimeter signal in the 100k-cap store
- worker: metadata.host reads request.host (real caddy JSON nests it;
verified against live /var/log/caddy/seeds.log — the DC-112 read was
always null on live lines); top-level fallback kept
- worker: onAppear recovery log (DC-112 judge polish fold)
- start.sh: -v /var/log/caddy:/var/log/caddy:ro + CADDY_ACCESS_LOG env
- README: dead caddy-api/ dir refs -> dashcaddy-api/ (queue item e)
- tests: +12 DC-113 pins (hermetic, real worker + store); DC-112
fixtures corrected to the real nested request.host shape
126 suites / 2841 tests green. Judge: GLM-5.3 round-1 B, round-2 A
(SHIP). Verdict urn:ump:mccln523fptotuvrmddlqpf4zpkrxf273tg4kyytuyy3776rj3pq
