Task gallery / Data processing / data science / Version 2
Reference solution (oracle)
Pass
No-op resistance check
Pass
QA verdict
vendor redesign; solved 5/5
Aggregate eligibility
Eligible version

The task

The covariance options in statsmodels/robust/robustlinearmodel.py (H1, H2, H3) assume errors that are symmetric with constant variance, and they treat the scale as known. Our users fit robust regressions to expenditure and count-like outcomes where neither holds, and their standard errors come out wrong. Please add a sandwich covariance to the repository at /app/repo and commit it. Add a method RLMResults.covparamss…

Excerpt only; not a complete executable task specification. Task ID sfdata2/weak-moment-location-scale-v2 · version 2. Selection status: known curated delivery cohort.

Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effortVerifier result [95% Wilson]Diagnostic labels / validHARNESS_ERROR · excludedOutcome classes
GPT-6 Astra · medium5/5 · 100.0% [56.6%, 100.0%]0 / 50
GOOD_FAILURE: 0
BAD_FAILURE: 0
GOOD_SUCCESS: 0
BAD_SUCCESS: 0

Legacy evidence

Model / effortVerifier result [95% Wilson]Diagnostic labels / validHARNESS_ERROR · excludedOutcome classes

Difficulty, with uncertainty

Selected-best difficulty: 0.0% [0.0%, 43.4%]. This is one minus the best measured current-row pass rate among rows with at least five valid runs.

The maximum is selected from the observed rows, so the estimate is optimistic. Its Wilson interval is not adjusted for model selection. “Hard” requires qualifying GOOD_FAILURE evidence; the threshold flag additionally requires the interval and recorded quality gates to meet the documented rule. This is not independent validation. Threshold flag: no.

Every recorded run

23 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / modelDate / sourceReward / eligibilityDiagnostic class / sourceResourcesEvidence
weak-moment-location-scale-v2__9nVHvvb
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__JGVREsB
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__RLmrXgi
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__fXV6nbr
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__kwutduu
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__wStB9y9
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__2SraopV
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__C5Rc2wP
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__HbtqKaB
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__JZukkzV
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__hsh9Wjh
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__o2KqGYN
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__jzewbQR
GPT-6 Astra · medium
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: 2,726
Turns: 12
Cost: —
Not publicly available
weak-moment-location-scale-v2__vggx6D9
GPT-6 Astra · medium
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: 2,532
Turns: 11
Cost: —
Not publicly available
weak-moment-location-scale-v2__BLhgcKX
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__S4v743k
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__cjmvWMa
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__qgdVyvD
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__ysBz3dt
oracle@@
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__zNu7kXM
nop@@
Oct 22, 2026
delivery
0 · validNo diagnostic label
derived
Tokens: —
Turns: —
Cost: —
Not publicly available
weak-moment-location-scale-v2__2t6qfBY
GPT-6 Astra · medium
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: 2,861
Turns: 10
Cost: —
Not publicly available
weak-moment-location-scale-v2__6PLnRZg
GPT-6 Astra · medium
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: 2,762
Turns: 13
Cost: —
Not publicly available
weak-moment-location-scale-v2__AHkGed7
GPT-6 Astra · medium
Oct 22, 2026
delivery
1 · validNo diagnostic label
derived
Tokens: 2,528
Turns: 9
Cost: —
Not publicly available