**Gate defect found & fixed (the "does not lint" bug).** `.agents/validate.sh` — the phase gate — ran `python3 -m pytest` on `/usr/bin/python3` + `~/.local` site-packages (not the uv venv), ran `ruff check .` *only if* a ruff happened to be on PATH, and **never ran pyright or the coverage floor**. Rewrote it to the project's real gate: cd to repo root → `uv run pytest --cov --cov-fail-under=94` → `uv run ruff check src tests agent` → `uv run pyright` → `node --check web/static/*.js` → hygiene gates; a missing toolchain now fails loudly. Provoked it to confirm it bites (floor + a seeded F401 both fail).
**Verification (all green)**
- `bash .agents/validate.sh` → **exit 0**: 356 passed, 6 skipped · coverage **94.75%** (floor 94) · ruff `All checks passed!` · pyright `0 errors` · node syntax clean
- `uv run pytest --cov` → `severity.py` **100%**; `uv run pytest -m live --live` → **6 passed**; `uv pip list --outdated` → empty
- Criteria: `classify('cpu.usage_pct',…)` → `fail`/`ok`/`None` ✓ · `/api/ups/snapshot` carries `severity` beside `charge_pct`/`load_pct`/`battery_runtime` (apc now live-`warn` at 498 s — threshold working) ✓ · no `.sev-*`/synonym vocabulary (only a comment saying so) ✓ · pytest/coverage/lint ✓ · dev server restarted, `/api/health` ok 6/6 sources, all pages+assets 200 ✓
- Chromium against live fleet: `severityFrom` cell→`fail`, bare→`warn`, null→`''`, unrated→`''`; `hero` fail → `rgb(207,34,46)`, null → `n/a` with **no** verdict class, warn+bar 42%; all four pages render unchanged → `data/logs/phase01-final-{index,system,llm,ups}.png`
**Docs (full review, incl. pre-existing drift).** README: `/ups` row claimed "upsd on 3493" (fleet is 3051, stated elsewhere in the same file); config table omitted `DASH_HOST/PORT`, llm/ups `*_INTERVAL_SECONDS`, `*_TIMEOUT_SECONDS`, `GUFO/VLLM_API_KEY`, `POLL_MS_*`, `DEBUGPY` (+ dedup); severity bullet omitted `disks`/`gpus[]`/rated LLM cells and the ratio rescale; agent section listed only `/snapshot` though `/info`+`/health` exist. AGENTS.md: same 3493 claim; `install-agent.sh --token-file` (its flags are `--bind/--port/--token/--rotate-token/--status/--uninstall` — it hands *the agent* `--token-file`); gap 3 "Two commits" (now 6, still no `origin`); gap 1 given the sudoers install command + verified live gating reason; coverage line now 80% repo floor vs 94% gate floor; cyberpower `identity.model: GX1500U` vs `ups.description` quirk. `.env.dev.example`: `DEV_FORWARDS` remote port 3493→3051 and engine URLs that pointed at `127.0.0.1` with nothing forwarding them.
**Deviations.** No `ruff format` (30 files would reformat; the project gate is `ruff check` + pyright — reformatting completed phases is out of scope). **No live-infra changes**: enabling the battery-test buttons needs `deploy/nut-sudoers` installed on driveripper + a nut-server restart and a scoped `[dashboards]` `instcmds` user — prod write with a documented shutdown risk (AGENTS gap 1), so repo-side only. 36 pre-existing `ResourceWarning: unclosed database` from test fixtures are noise, not failures; left rather than churn ~15 fixtures. `severity.attach()` is unit-tested but has no production call site until phases 02–05.
**Next pending phase:** `02_overview_fleet_and_alerts` (`01_alerts_builder.md`).
Three dashboards served by one FastAPI app with a SQLite history store
(raw / 1m / 1h) and hand-written SVG charts: no Prometheus, no Grafana,
no CDN, no build step. Nothing is fetched from the internet at runtime.
* system: a stdlib-only agent (agent/host_agent.py) reports /proc and
/sys counters; the dashboard turns them into rates over a labelled
window, so every number says how it was measured.
* llm: gufo/llama.cpp and vLLM /metrics are parsed by an in-house
exposition parser. Measured delta/elapsed throughput beats a native
per-request gauge, and each value carries its provenance.
* ups: a NUT wire-protocol client plus health checks that name what
they looked at. Commands are gated by NUT_ALLOW_ACTIONS,
DASH_READ_ONLY and a DANGER confirmation, re-checked server-side.
Missing values render as n/a rather than 0, and an unconfigured source
answers 404 {"configured": false} without dialling anything, so "not
deployed here" never looks like an outage.
253 tests at 94% coverage against captured real fixtures; ruff and
pyright clean.
LLM-Generated: true
ducoterra