prometheus: drop the frank-primary scrape job (FreeToken exports no /metrics)

FreeToken has no /metrics endpoint — the job scraped 404s forever, a
structural never-green, not an outage (the Lucebox DS4.1 precedent). The
LlmEndpointDown alert regex self-adjusts (frank-.* matches existing series
only). Comments updated; seam now asserts frank-primary's absence. If
FreeToken grows /metrics, re-add the job.

shared/prometheus/prometheus.yml

@@ -98,10 +98,12 @@ scrape_configs:
   # service down. Same host, same rule, so both local endpoints use the
   # gateway.
   #
-  # (2026-09-26) frank-primary is llama.cpp again (the unsloth b11030-mix
-  # prebuilt serving Qwen3.8-Flash-Next Q8_0) on Dankserver, a DIFFERENT
-  # machine: the netavark published-port quirk above is same-host only, so
-  # plain LAN routing reaches 192.168.0.235:7770 and the job returns.
+  # (2026-10-05) frank-primary left this file: FreeToken (the PR587 ROCm
+  # engine now serving it) has NO /metrics endpoint — the job scraped 404s
+  # forever, which is a structural never-green, not an outage. The
+  # netavark published-port quirk above is same-host only; plain LAN
+  # routing REACHES 192.168.0.235:7770 (health answers) — only the metrics
+  # path is absent. If FreeToken grows a /metrics, re-add the job here.
   - job_name: "frank-small"
     metrics_path: "/metrics"
     static_configs:
@@ -116,9 +118,3 @@ scrape_configs:
         labels:
           service: frank-large
 
-  - job_name: "frank-primary"
-    metrics_path: "/metrics"
-    static_configs:
-      - targets: ["192.168.0.235:7770"]
-        labels:
-          service: frank-primary

shared/prometheus/rules/llm-fleet.yml

@@ -1,10 +1,12 @@
 # Alerting and recording rules for the LLM fleet.
 #
-# One metric namespace: llamacpp:* — frank-small, frank-large and
-# frank-primary, all llama.cpp with /metrics (the family verified from
-# /metrics on 2026-09-16 and 2026-09-20). frank-primary is scraped across
-# the LAN at 192.168.0.235:7770 (the netavark published-port quirk that
-# forces the gateway for the Dankclaw endpoints is same-host only).
+# One metric namespace: llamacpp:* — frank-small and frank-large, both
+# llama.cpp with /metrics (the family verified from /metrics on 2026-09-16
+# and 2026-09-20). frank-primary LEFT the family 2026-10-05: FreeToken (the
+# PR587 ROCm engine) has no /metrics endpoint, so its scrape job was
+# deleted rather than left never-green.
+# (The netavark published-port quirk that forces the Dankclaw endpoints
+# onto the gateway is same-host only.)
 #
 # Every expression is keyed to a series that EXISTS. Nothing matches on
 # absence: when an endpoint's runtime leaves the fleet, its selectors are
@@ -110,6 +112,6 @@ groups:
           description: >-
             Prometheus cannot reach the LLM endpoint. frank-small and
             frank-large are root units on Dankclaw: `systemctl is-active
-            frank-small` / `frank-large`. frank-primary is a root unit on
-            Dankserver: `systemctl is-active frank-primary`. All three
-            scraped endpoints export the llamacpp:* family.
+            frank-small` / `frank-large`. Both scraped endpoints export
+            the llamacpp:* family. (frank-primary left the scrape set
+            2026-10-05 — FreeToken exports no /metrics.)

tests/observability_quadlet.bats

@@ -315,31 +315,28 @@ PAIRS
 
 @test "prometheus scrapes every LLM endpoint that exports metrics" {
     # The LLM endpoints are the services whose behaviour this fleet argues about
-    # most (KV pressure, prefix-cache reuse, queue depth). All three export
-    # the llamacpp:* family since 2026-09-26, when frank-primary (Dankserver)
-    # went back to llama.cpp — the unsloth b11030-mix prebuilt serving
-    # Qwen3.8-Flash-Next Q8_0 — after two days of the Lucebox DS4.1 engine,
-    # which exported nothing (404) and had no job.
+    # most (KV pressure, prefix-cache reuse, queue depth). Both Dankclaw
+    # endpoints export the llamacpp:* family. frank-primary LEFT the set
+    # 2026-10-05: the FreeToken PR587 ROCm engine has NO /metrics endpoint —
+    # scraping it was a structural never-green (404), so the job was deleted
+    # rather than left vacuous (the Lucebox DS4.1 precedent, 2026-09-26).
     # The two Dankclaw endpoints are HOST processes reached through
     # host.containers.internal: this Prometheus is a bridge-networked
     # container, and on this netavark host a container can only reach the
     # host's LAN IP at a PUBLISHED port — a host-process bind like
     # llama-server's 0.0.0.0:7770 is refused at 192.168.0.143:7770 while it
     # answers at 169.254.1.2:7770 (why frank-small stayed red by construction
-    # for days until the 2026-09-20 /targets audit). frank-primary is a
-    # DIFFERENT machine, so that quirk does not apply: plain LAN routing
-    # reaches 192.168.0.235:7770, and the job must say so (a gateway target
-    # would point at Dankclaw's own :7770 — frank-large — and double-scrape
-    # it under the wrong label).
+    # for days until the 2026-09-20 /targets audit).
     local cfg="$REPO_ROOT/shared/prometheus/prometheus.yml"
     grep -q '"host.containers.internal:7771"' "$cfg" || { echo "frank-small not scraped"; return 1; }
     grep -q '"host.containers.internal:7770"' "$cfg" || { echo "frank-large not scraped"; return 1; }
-    grep -q '"192.168.0.235:7770"' "$cfg" || { echo "frank-primary not scraped"; return 1; }
+    ! grep -q '"192.168.0.235:7770"' "$cfg"
     grep -q '"host.containers.internal:7770,192.168.0.235:7770"' "$cfg" \
         && { echo "frank-primary folded into a Dankclaw gateway target"; return 1; }
-    for job in frank-small frank-large frank-primary; do
+    for job in frank-small frank-large; do
         grep -q "job_name: \"$job\"" "$cfg" || { echo "no scrape job for $job"; return 1; }
     done
+    ! grep -q 'job_name: "frank-primary"' "$cfg"
     # None of them is reached through a guarded vhost: Prometheus cannot solve
     # an Anubis challenge, so a franksdank.cloud target is red by construction.
     ! grep -qE '^\s*-\s*"?https?://[^"]*franksdank' "$cfg"