ledger(wildct): amendment R7, H25w keeps its registered CPU Fast Draft

EXPERIMENTS.md

@@ -8909,6 +8909,49 @@ the hold.
 Rule W7: this was the campaign's first hold, so every later wildct row runs release 0.1.89. Holds
 used: 1 of at most 12. The next row in the registered order is H18w.
 
+### Wildct amendment R7: H25w's CPU Fast Draft (2026-11-07)
+
+Recorded 2026-11-07, after the H52w and H18w holds and before any H25w hold. Mechanics only. No
+row's hypothesis, prediction, arm, model, statistic, threshold, cap, disk need, hold count or
+order changes. No kernel module was loaded, and nothing on wildct changed.
+
+**What was found.** The pre-registration's H25w line says that the agent manifest "keeps its
+default CPU Fast Draft in both arms, as H25 run 4 did", and it stages the draft
+(`OpenVINO/Qwen3-0.6B-int4-ov` @ `f864c610`) for that. Its command sets no draft variable. When
+the line was written, the launcher drafted by default for every CPU target that serves an
+OpenVINO Qwen3 model (#116, merged 2026-10-18). The model optimizer (#163) merged at
+2026-10-21T05:59Z, three minutes before the pre-registration (#181). It narrowed that default:
+the launcher now drafts on the CPU by default only where an H34-family row is SUPPORTED for the
+host's CPU class (`agent_draft_measured` and `agent_ledger_rule H34` in `scripts/k3d-gpu`). No
+H34-family row names the i7-13700 (H34w is PENDING). So on wildct, release 0.1.89's
+`agent manifest` writes no draft, and the registered command would serve both arms without one.
+
+This was read on 2026-11-07 from main's launcher at `28b1e70b`, which equals 0.1.89's apart from
+the version line. The read used `K3D_GPU_SYSROOT`, with a `/proc/cpuinfo` that names the
+i7-13700, `K3D_GPU_AGENT_BACKEND=ovms` and `K3D_GPU_AGENT_DEVICE=CPU`, as `run.sh` sets them:
+
+- With no draft variable, the manifest has no `--draft_source_model` or `--draft_device` line,
+  and the launcher prints "agent: no CPU Fast Draft: no EXPERIMENTS.md H34-family row measured
+  13th Gen Intel(R) Core(TM) i7-13700 (K3D_GPU_AGENT_DRAFT=CPU forces it)".
+- With `K3D_GPU_AGENT_DRAFT=CPU`, it writes `--draft_source_model=OpenVINO/Qwen3-0.6B-int4-ov`
+  and `--draft_device=CPU`. The manifest is then byte-identical to the default one rendered for
+  the i9-13900T, the host of H25 run 4.
+
+H25 run 4 ran at `bcca7be`, which carries #116, and H25x served both arms with the same draft
+(`bench/xhost/results/2026-10-20/H25x/hold/out/on.yaml`).
+
+**Runner change.** `row.sh h25w` adds `K3D_GPU_AGENT_DRAFT=CPU` to H25w's environment, so the
+command serves what the H25w line registers. It reaches both arms alike: `run.sh` renders one
+manifest and derives OFF from it by the one `--enable_prefix_caching=false` line, which it still
+checks. The draft is read from `<target>/OpenVINO-Qwen3-0.6B-int4-ov`, where the setup staged it
+(`fetch_models.py --draft`), so nothing is downloaded in the pod. This adds no arm and gates
+nothing. H34w is not affected: `h34.sh` writes its own graphs (A, the target alone; B, with the
+draft). Test: `tests/wildct_hold_test.sh` (row.sh's H25w environment), in CI.
+
+**Resume procedure.** Before H25w, step 3b ships main at this amendment's merge commit. Its
+`scripts/k3d-gpu` must still equal 0.1.89's apart from the version line, or `hold.sh` refuses the
+hold (exit 7), and its `share/` must equal 0.1.89's. Rule W7 keeps release 0.1.89.
+
 ### H5 amendment A1: stage-1 harness and definitions (2026-10-19)
 
 Written 2026-10-19T22:30-07:00, before any H5 measurement. It fixes what the

bench/wildct/row.sh

@@ -8,7 +8,8 @@
 #   h52w         H52w's procedure: bench/wildct/h52w.sh OUT (it sets its own cluster, opt-out
 #                and W3, and runs the installed release's default node image; no IMAGE)
 #   h18w         H18's bench/sandbox_round.sh, runs 1-3
-#   h25w         H25's bench/shared-prefix/run.sh
+#   h25w         H25's bench/shared-prefix/run.sh, with the CPU Fast Draft the H25w line registers
+#                in both arms (K3D_GPU_AGENT_DRAFT=CPU, wildct amendment R7)
 #   h34w         H34's bench/hetero-spec/h34.sh
 #   h28w-prep    bench/zero-copy-models/probe.sh prep (typical's model images only, r0-r6)
 #   h28w         bench/zero-copy-models/probe.sh run (its plain k3d cluster create gets W3 and the
@@ -60,8 +61,10 @@ case ${row} in
         ARGV=(bash "${REPO}/bench/sandbox_round.sh") RUNS=3 ;;
     h25w)
         need_image
+        # K3D_GPU_AGENT_DRAFT=CPU: the launcher drafts by default only on a CPU class an H34-family
+        # row measured, and none names the i7-13700 (wildct amendment R7).
         E=(IMAGE="${IMAGE}" MODELS="${W}/models" OUT="${OUT}" LEVELS=typical CLUSTER=k3dgpu-w-h25 SEED_BASE=2560 HOLD=1440
-           LOAD_CPUS=20-23 K3D_GPU_VENDORS="${OPTOUT}" K3D_GPU_K3S_ARGS="${W3}")
+           LOAD_CPUS=20-23 K3D_GPU_VENDORS="${OPTOUT}" K3D_GPU_K3S_ARGS="${W3}" K3D_GPU_AGENT_DRAFT=CPU)
         ARGV=(bash "${REPO}/bench/shared-prefix/run.sh") ;;
     h34w)
         need_image

tests/wildct_hold_test.sh

@@ -594,8 +594,9 @@ row_envs_match_the_registration() {
     local o=K3D_GPU_VENDORS=auto,-nvidia,-intel w3="K3D_GPU_K3S_ARGS=${W3_LEDGER}"
     has smoke -- K3D_GPU_CLUSTER=k3dgpu-w-smoke "${o}" "${w3}" "K3D_GPU_IMAGE=${IMG}" || return 1
     has h18w -- K3D_GPU_CLUSTER=k3dgpu-w-sbx "IMAGE=${IMG}" "${o}" "${w3}" || return 1
+    # H25w: the CPU Fast Draft its line registers, in both arms (wildct amendment R7).
     has h25w -- CLUSTER=k3dgpu-w-h25 LEVELS=typical SEED_BASE=2560 HOLD=1440 LOAD_CPUS=20-23 "${o}" "${w3}" \
-        "MODELS=${HOME}/k3dgpu-bench-wildct/models" || return 1
+        "MODELS=${HOME}/k3dgpu-bench-wildct/models" K3D_GPU_AGENT_DRAFT=CPU || return 1
     has h34w -- H34_CLUSTER=k3dgpu-w-h34 H34_VENDORS=auto,-nvidia,-intel H34_LEVELS=typical LOAD_CPUS=20-23 \
         "K3D_GPU_IMAGE=${IMG}" "H22_MODELS=${HOME}/k3dgpu-bench-wildct/models" "${w3}" || return 1
     has h28w-prep -- LEVELS=typical "IMAGE=${IMG}" || return 1