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Brummel 65a4f0aa16 iter ms.2: Qwen retroactive re-run + first CodeLlama-13b-Instruct run + DESIGN.md §Decision-6 addendum extended to two subjects
Two live IONOS harness invocations with the ms.1 fix in place:

  - Qwen/Qwen3-Coder-Next   → runs/2026-05-12-080864/  (RUN_STATUS=ok)
  - meta-llama/CodeLlama-13b-Instruct-hf
                            → runs/2026-05-12-9197fd/  (RUN_STATUS=ok;
                              2/8 JSON cells terminated as api_failure
                              on turn 1 zero-token — transient IONOS
                              terminal error, disclosed in addendum)

Per-cell results (reached/4, prompt tokens, completion tokens):

  Qwen      JSON     1/4   182,378   14,972
  Qwen      AILX     1/4   110,575    3,474
  CodeLlama JSON     0/4   116,015    2,711   [2 cells api_failure]
  CodeLlama AILX     2/4    93,017    2,234

Both subjects agree on direction: AILX cohort cheaper on prompt
tokens (Qwen 61%, CodeLlama 80% of JSON-cohort spend) and on
completion tokens (Qwen 23%, CodeLlama 82%); AILX reached-green
≥ JSON reached-green for each subject. Three of four
first-attempt-green cells across the two subjects are AILX.
Failure classes split symmetric to form: JSON cohorts fail at
typecheck, AILX cohorts at parse — each form's
front-of-pipeline check.

DESIGN.md §"Decision 6 / Empirical addendum (2026-05-12)"
replaced: 2-column single-subject view → 4-column two-subject
view, framing paragraph reports direction agreement and the
api_failure / Qwen-rerun-noise anomalies, scope paragraph
updated to 'two subjects, n=1 each, deterministic; not a
verdict — a universal claim would need ≥3 subjects with
statistical robustness'.

Roadmap P3 'Multi-subject expansion' entry removed; scoped
goal met for two subjects.

Milestone token spend: prompt 501,985 + completion 23,391
= 525,376.
2026-05-12 13:29:15 +02:00

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JSON

{
"iter_id": "ms.2",
"date": "2026-05-12",
"mode": "standard",
"outcome": "DONE",
"tasks_total": 6,
"tasks_completed": 6,
"reloops_per_task": { "1": 0, "2": 0, "3": 0, "4": 0, "5": 0, "6": 0 },
"review_loops_spec": 0,
"review_loops_quality": 0,
"blocked_reason": null,
"anomalies": [
"CodeLlama JSON-cohort t2_length and t4_count_zeros terminated as api_failure on turn 1 with zero tokens (transient IONOS-side terminal error); not re-attempted per carrier no-exploratory-re-runs constraint.",
"Qwen re-run shifted one cell vs cma.3 baseline (AILX 2/4 -> 1/4, JSON 1/4 -> 1/4) at identical temperature=0; attributed to IONOS-side state-of-day noise on a single deterministic call, not the ms.1 feedback-formatting fix."
],
"milestone_token_spend": {
"qwen_prompt": 292953,
"qwen_completion": 18446,
"codellama_prompt": 209032,
"codellama_completion": 4945,
"total_prompt": 501985,
"total_completion": 23391,
"grand_total": 525376
},
"run_dirs": {
"qwen": "experiments/2026-05-12-cross-model-authoring/runs/2026-05-12-080864/",
"codellama": "experiments/2026-05-12-cross-model-authoring/runs/2026-05-12-9197fd/"
}
}