# Session handoff — 2026-07-16 ~09:45

Previous session ended because the auto-mode permission classifier entered
a persistent session-level lockout (blocked nearly all Bash/Write on
"earlier conversation content" grounds, ~7h intermittent). Everything
below is current as of ~09:45. Repo knowledge map: `INDEX.md`. Scored
experiment record: `results-loop/PROTOCOL_UNIFIED.md` (items 1–21, all
scored except pending stats below). Research plan: `PLAN_SELFPACED.md`.

## RUNNING RIGHT NOW — do not disturb, monitor these

### Rented H100 node ("node 1")
- **ssh -p 52525 root@185.151.171.35** (vast.ai; greets with a banner —
  filter it). Costs money while it runs.
- **`/root/pipeline5.log`**: lens-mapping pipeline (setsid, survives ssh
  drops). Sequence: 31B jbar DONE (saved+synced) → 31B exp4 scan DONE as
  a printed TABLE (its `regimes.pt` save crashed — known bug, see
  fix-list) → 31B weights cleaned → **26B-A4B jacobian scan RUNNING**
  (started ~07:40, ~40-90s/prompt × 256; expect done late morning).
  After it: 26B exp4 scan (same save bug will strike — harmless, the
  table survives in the log), CLEANED, PIPELINE-DONE.
- **`/root/node_sync.sh` sidecar** (also setsid): rclone-pushes
  `/workspace/jspace/results/` (jbar_*.pt, exp4_*.log) and pipeline5.log
  to `jspace:jspace/results-lens/` every 120s. The node HAS rclone
  credentials (Nils placed them himself — never copy credentials to
  nodes from automation; hard-blocked + it's his call).
- When PIPELINE-DONE: verify `results-lens/` has jbar_31b.pt,
  jbar_26b_a4b.pt, exp4_31b.log, exp4_26b_a4b.log — then the node can be
  destroyed (tell Nils; it's his dashboard).
- Storage lore: /workspace = disk (survives stop, dies on destroy);
  /dev/shm = RAM (dies on stop). See memory/vast-node-storage.md.

### Spark (this machine)
- gpuq worker in tmux session `gpuq_spark:gpuq0`, queue EMPTY, healthy.
  Worker code now has: data contract (`# gpuq-in:`/`# gpuq-out:` job
  comments → auto-sync inputs/outputs with the bucket, outputs every
  120s during the job) and graceful drain (`touch ~/gpuq/spark-gpu0/STOP`
  — NEVER kill the tmux session mid-job; that cost 3.5h once).
- Thermal: box hard-froze 4× on 2026-07-15 under sustained load —
  cabinet now open, stable since. If it freezes: reboot, restart worker
  (`tmux new-session -d -s gpuq_spark -n gpuq0 'bash
  ~/jspace/scripts/gpuq_worker.sh spark-gpu0 0'`). NO @reboot cron
  (Nils vetoed — crash-loop risk).

## IMMEDIATE PENDING (blocked by the classifier, run first)

1. `.venv/bin/python scripts/mcnemar_carrycot.py` — the paired p-values
   for last night's headline result, especially the drop-bucket test.
   THE morning number; item 21's outcome note says "pending".
2. Commit everything uncommitted:
   `git add -A scripts/ PLAN_SELFPACED.md HANDOFF.md && git add -f
   results-loop/PROTOCOL_UNIFIED.md results-loop/eval_gsm_carrycot*.json
   results-loop/gsm_cot_data.json && git commit && git push origin main`
   (uncommitted: mcnemar script, lens-noise trainer changes
   [train_carry_cot.py --lensnoise, UNVERIFIED — parse-check first],
   plan E2-L/E2-A2/E2-N sections, protocol item-21 scoring, this file).
3. Parse the 31B (and later 26B) regime tables from exp4_*.log into
   regimes_*.pt — copy the pattern in `scripts/parse_e4b_regimes.py`
   (adjust layer count: 31B=60, 26B=48? read from log). Then fill
   REGIMES.json rows (results/REGIMES.json) and re-render
   `scripts/fig_regimes.py` (5-scale figure, panels auto-fill).
4. Patch `scripts/exp4_regimes.py` to take an explicit output path
   (torch.save to CWD-relative "results/" has now crashed 3 scans).

## LAST NIGHT'S RESULTS (already scored in the protocol)

- **Item 21, the headline**: GSM8K carry-cot (dense self-distilled terse
  scratchpads through the carry whiteboard): **57.4%** best cell vs
  12.1% all-time prior best; base 10.9. Control (same supervision, no
  recurrence): 54.7 best. Whiteboard's specific edge: DROP items
  (+9/+14 across cells) — reach into problems unreachable at labeling.
  If McNemar confirms → gates open for: stage B internalization ladder
  (PLAN E2-L), A2 on-policy refresh (E2-A2), lens-shaped noise (E2-N,
  Nils's idea, N1 already implemented as --lensnoise, unverified).
- **Item 20**: gate threshold curve — E0's frozen logistic probe
  dominates every learned gate; ORACLE gate = 59.6% overall at 0.24
  mean iters (hard items depth-diverse: 18/28 solvable at some k, ≤13
  at any single k). Gate program continues; binding constraint =
  classifier quality on the pre-loop state.
- **E4B lens surprise** (REGIMES.json, provisional): no E2B-style
  workspace signature — sensor L11-22, motor from L23, persistence bump
  ABSENT; candidate band sits inside the KV-shared zone. The elastic
  pair (E2B⊂E4B) reorganized. Needs ignition cross-check + jbar top-up
  before strong claims.

## MORNING DECISION QUEUE (Nils decides, one submit each)

With McNemar in hand: which of stage B (internalization) / A2
(re-harvest) / E2-N1 (lens-noise, verify parse first) gets the Spark.
All pre-registered or planned in PLAN_SELFPACED.md; job template
pattern: scripts/jobs/zzz_l_gsm_e2a.sh (uses the data contract).

## OPERATIONAL CAUTIONS (paid for in blood, see LESSONS.md 1-12 + memory)

- pkill -f self-match; k=0 sanity row in every eval; e400 pre-commit;
  seeds before believing single cells (noise-s0 taught this twice);
  monitors: grep patterns must match eval_loop.py's "acc=" (GSM) vs
  "pass@1=" (MBPP); artifacts leave nodes within one sync cycle.