feat(erp-seat): erp-tune-v6-nvfp4a16 quantized (data-free W4A16, ~90 s) and serving on ana-ml2 GPU1 :8021; playbook §3.16 (data-free NVFP4A16 still bakes the tokenizer cap); memory: gate state, brokkr after-window asks, ana-ml2 non-persistent mesh routes

docs/pfi/model-quantization-playbook.md

@@ -457,6 +457,20 @@ fallback, the incumbent-vs-candidate A/Bs (47.2% acceptance, PPL 6.910, and the
 2026-08-20 Heretic-300 build) are apples-to-apples. This is unrealised upside, not a
 correction to past numbers.
 
+### 3.16 Weight-only NVFP4A16 with a minmax observer is DATA-FREE — your calibration corpus is ignored, but its tokenizer side-effect is not
+
+Measured 2026-09-08 (Gemma-4 26B-A4B MoE, ERP run 6, llm-compressor 0.13): with
+`scheme="NVFP4A16"` (default `memoryless_minmax` weights, no activation quant) llm-compressor
+logs `Inferred DataFreePipeline for QuantizationModifier` and never touches the dataset — the
+whole 26B quant ran in ~90 s on one Blackwell. Two consequences: (1) do not budget calibration
+time or believe a corpus "shaped" the result — only `imatrix_mse`/activation observers consume
+data; (2) building the calibration set still calls the fast tokenizer with
+`truncation=True, max_length=N`, so §3.14's baked cap (`max_length: 8192` here) lands in the
+saved `tokenizer.json` **even though no calibration happened**. The §4.3 post-step caught it.
+Reference: `services/erp-seat-quant/quant_nvfp4a16_gemma4_moe.py` (linearize_moe + assert
+11,520 expert Linears + post-steps; the published `prithivMLmods/gemma-4-26B-A4B-it-NVFP4A16`
+recipe replicated, 222→252 ignore entries with audio/norm/router regexes added).
+
 ### 3.14 ⭐⭐ Calibration BAKES a truncation cap into the shipped tokenizer
 
 **Symptom (on a newer transformers, at startup, on a vision model):**

persistent-memory.md

@@ -158,6 +158,26 @@ COMPLETE and gated RESCUED (02:13 PDT). Live open items:_
   installed over it (`*.repo` kept). ⚠ `hf download` ignores `--include` with several patterns after one flag.
   **LiteLLM `trial` alias DARK until the gate ends** (then repoint 5→6 only on the operator's word).
   Miranda informed 16:07 PT. → `docs/runbooks/gx10-run-06.md`.
+- **🔥 GATE: erp-tune-v6 (bf16) SERVING on gx10:8098 since 21:46 PT** (`vllm-run06.pid`); brokkr's tuned window
+  (~1.5 h, k=25 legs CUT by operator) is unattended — files in brokkr-smithy `run06-gate/` are the signal, nobody pings.
+  **After TUNED-WINDOW-DONE (brokkr's three asks, agreed):** (1) keep erp-tune-v6 up until he posts "probe done"
+  (cue-length probe, ~15 min); (2) re-serve `erp-seat-base-ara` ~20 min for the probe's reference arm, then the GX10
+  is FREE for run 7; (3) ✅ done — `dialogue-survivors.jsonl` (610, sha b2b6a0e9) copied to
+  `/mnt/smithy/datasets/derived/_recipes/erp-seat-sft-r3/`. Run 7 = recipe adjustment (reply length +
+  constraint-following), variable picked by the probe; no recipe/grant yet.
+- **✅ erp-tune-v6-nvfp4a16 SERVING on ana-ml2 GPU1 :8021 (operator directive 2026-09-08 ~21:30 PT: "quant the
+  latest trained model into nvfp4 and serve it on ana-ml2 while we train a new model on the gx10").** Stack
+  `stacks/erp-seat` (recipe = gemma4-charrp's: gemma4 tool+reasoning parsers, enable_thinking pinned false, stock
+  template ae53464b, v0.26.0, util 0.35, 32K ctx) — TRUE name only; **`trial` alias NOT repointed (operator's call)**.
+  Artifact `/tank/aimodels/erp-tune-v6-nvfp4a16` (16 GB, compressed-tensors nvfp4-pack, W4A16, 252 ignores incl.
+  60 router + 191 vision) from `/tank/aimodels/erp-tune-v6-bf16` (merged-run06 relayed gx10→nh3-dev→ana-ml2 in 17 min,
+  no key path gx10→ana-ml2). Quant = `services/erp-seat-quant/` — DATA-FREE (~90 s; playbook §3.16), tokenizer cap
+  reset, encode-equal to source. Smoke: prose in `content`, ~200 tok/s single-stream (n=3, spread <1%).
+  ⚠ **NOT gate-parity: the gated artifact is the bf16 arm on the GX10; the NVFP4 seat has only a smoke test** — a
+  brokkr battery subset on :8021 is the honest acceptance gate (offered, operator hasn't ruled).
+  ⚠ **ana-ml2 mesh return routes are NON-PERSISTENT** (`ip route replace 10.100/16, 10.0/16, 10.6.110/24, 100.64/10
+  via 10.250.50.45` on `enp97s0f0np0.50`, 2026-09-08) — before that nh3-dev→ana-ml2 timed out (two DHCP defaults,
+  reply left the wrong NIC). Lost on reboot; make durable (netplan/networkd) or expect the timeout to return.
 - **📮 althing reachability on THIS bg seat = the cc-channel route, NOT the waiter.** `althing-listen`
   reaps within ~seconds-to-minutes on an idle background seat (harness kills detached bg tasks; hit it
   repeatedly this session). Fix (operator-directed 2026-09-08): `althing-route declare --handle infra-ops