Answers fox's 2026-05-21 question — 'are we being swamped because we're
open to internet?' — before the multi-day GPU bench, where uncontrolled
internet traffic on the single-slot hermes (3090/vLLM) and qwen
(4090/llama.cpp) endpoints would contaminate wattage + throughput.
Three stdlib subcommands (urllib + sqlite3 + hand-rolled SVG, nothing to
install):
poll — scrape each endpoint's Prometheus /metrics on an interval into
SQLite; queue depth (num_requests_waiting / requests_deferred)
is the swamp signal a single GPU slot exposes. Prunes past
--retention-days each cycle (bounded store, no cancer growth).
graph — multi-panel SVG: queue depth, running, req/s, tok/s, e2e latency.
access — parse Caddy/nginx access log for the real client IPs the backend
can't see behind the proxy hop; top talkers + per-IP rate SVG.
Backend /metrics = HOW MUCH; proxy log = WHO. make monitor-poll /
monitor-graph / monitor-access.
