Task gallery / SWE-Marathon / Version 1
Reference solution (oracle)
Unverified
No-op resistance check
Unverified
QA verdict
Not recorded
Aggregate eligibility
Eligible version

The task

Implement the Jsonnet language from scratch (std-only Rust) Write an evaluator for the [Jsonnet]([source link]) configuration language that reproduces, byte for byte, the observable behaviour of the pinned C++ reference — the jsonnet command-line interpreter, version 0.20, installed in this image. There is no separate specification: the reference's exact output is the spec. The manifested JSON, the way doubles…

Excerpt only; not a complete executable task specification. Task ID task_3bb8d4f019464904 · version 1. Selection status: not fully recorded.

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
Claude Opus 5 · default (unverified)0/5 · 0.0% [0.0%, 43.4%]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: 100.0% [56.6%, 100.0%]. 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

5 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
trial_904240af50a8418a
Claude Opus 5 · default (unverified)
Oct 9, 2026
console
0 · validNo diagnostic label
derived
Tokens: 310,439
Turns: 224
Cost: $43.6662
Not publicly available
trial_09e4b8e3b1014a7a
Claude Opus 5 · default (unverified)
Oct 9, 2026
console
0 · validNo diagnostic label
derived
Tokens: 287,709
Turns: 179
Cost: $38.3439
Not publicly available
trial_6c21364a415444de
Claude Opus 5 · default (unverified)
Oct 9, 2026
console
0 · validNo diagnostic label
derived
Tokens: 253,538
Turns: 164
Cost: $31.8032
Not publicly available
trial_ab3753c308124903
Claude Opus 5 · default (unverified)
Oct 9, 2026
console
0 · validNo diagnostic label
derived
Tokens: 155,915
Turns: 76
Cost: $13.5683
Not publicly available
trial_e97fd416e8a84480
Claude Opus 5 · default (unverified)
Oct 9, 2026
console
0 · validNo diagnostic label
derived
Tokens: 250,719
Turns: 157
Cost: $30.1924
Not publicly available