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Brummel 577bb6be43 experiment(cma): SMA authoring probe against Qwen3-Coder-Next (refs #68)
Probe whether a foreign model can write the Series SMA worked example in
AILang Form-A from the mini-spec + Series API alone. Two live runs, neither
reached green, but a clean progression:

- Run 1 (stock API doc): 6 byte-identical turns, blocked on (app new ...) —
  Qwen treats the  term head as an ordinary function.
- Run 2 (new clarified as a term head): clears that; ownership threading
  comes out idiomatically right (nested let s = Series.push s v), but
  S-expression bracketing breaks (push sees 4 args, not 2).

Cross-cutting: Qwen clears a hurdle only with per-quirk guidance and never
converges from the ail check diagnostic (same failure repeated all 6 turns
in both runs); the failures are Form-A bracket-shape errors, not semantic.
n=1 model, single session. Driver: sma_probe.py; raw logs sma-probe-run{1,2}.md.
Live IONOS run, with consent.
2026-06-02 17:31:35 +02:00

532 KiB

SMA authoring probe — Qwen3-Coder-Next via IONOS

Model: Qwen/Qwen3-Coder-Next
Max turns: 6
Task: write the Series SMA worked example in AILang Form-A, given the Form-A mini-spec + Series API only (not the reference).

Expected stdout: '3.0\n5.33333\n5.66667\n5.33333\n'


Turn 1 — check

Tokens this turn: prompt=6833, completion=2000

(module sma
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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Turn 2 — check

Tokens this turn: prompt=8952, completion=2000

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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Turn 3 — check

Tokens this turn: prompt=11071, completion=2000

(module sma
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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Turn 4 — check

Tokens this turn: prompt=13190, completion=2000

(module sma
  (fn main
    (doc "Compute SMA with window 3 over the stream 1.0,5.0,3.0,8.0,6.0,2.0 and print averages after the 3rd value onward.")
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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Turn 5 — check

Tokens this turn: prompt=15309, completion=2000

(module sma
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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Turn 6 — check

Tokens this turn: prompt=17428, completion=2000

(module sma
  (fn main
    (doc "Compute SMA with window 3 over the stream 1.0,5.0,3.0,8.0,6.0,2.0 and print averages after the 3rd value onward.")
    (type (fn-type (params) (ret (own (con Unit))) (effects IO)))
    (params)
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ail check feedback:

error: [surface-parse-error] parse error in term: unknown term head `con`; expected one of `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `loop`, `recur`, `new`, `lit-unit` at byte 259

Outcome: did NOT reach green after 6 turn(s).
Total tokens: prompt=72783, completion=12000.