syncrope/gopher-lua-54-semantics

Task gallery / DeepSWE (long-horizon SWE) / Version 2

Reference solution (oracle): Unverified
No-op resistance check: Unverified
QA verdict: Not recorded
Aggregate eligibility: Eligible version

The task

gopher-lua is a pure-Go Lua 5.1 VM; its only number type is LNumber (float64). Add an opt-in Lua 5.4 numeric-semantics mode. The specification is the Lua 5.4 Reference Manual ([source link]) — operative sections §2.1, §2.4, §3.1, §3.3.5, §3.4, §6.1, §6.4.2, §6.7, §8.1. Public surface: lua.Options gains Lua54Numbers bool. True: the state follows 5.4 numeric semantics in everything it parses, compile…

Excerpt only; not a complete executable task specification. Task ID task_f23a5f1298c94cb9 · version 2. 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 / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 5 · default (unverified)	1/5 · 20.0% [3.6%, 62.4%]	5 / 5	0	GOOD_FAILURE: 4 BAD_FAILURE: 0 GOOD_SUCCESS: 1 BAD_SUCCESS: 0
GPT-5.6-sol · default (unverified)	3/5 · 60.0% [23.1%, 88.2%]	0 / 5	0	GOOD_FAILURE: 0 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes

Difficulty, with uncertainty

Selected-best difficulty: 40.0% [11.8%, 76.9%]. 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

10 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 / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`trial_d92d043eb713467c` Claude Opus 5 · default (unverified)	Sep 5, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 166,719 Turns: 119 Cost: $18.0742	Not publicly available
`trial_4dfe1a1a590642ab` GPT-5.6-sol · default (unverified)	Sep 5, 2026 console	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_ac937a33cacc46a8` Claude Opus 5 · default (unverified)	Sep 5, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 196,607 Turns: 150 Cost: $23.4858	Not publicly available
`trial_2c90b55834474f6c` GPT-5.6-sol · default (unverified)	Sep 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_4530b19af5e240a0` Claude Opus 5 · default (unverified)	Sep 5, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 198,485 Turns: 121 Cost: $21.7445	Not publicly available
`trial_73ea02496ffa42d1` GPT-5.6-sol · default (unverified)	Sep 5, 2026 console	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_2bd1b368f2e74cec` Claude Opus 5 · default (unverified)	Sep 5, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 158,096 Turns: 116 Cost: $15.8975	Not publicly available
`trial_343aaf371480493b` GPT-5.6-sol · default (unverified)	Sep 5, 2026 console	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_9fd2edd5e13f441b` Claude Opus 5 · default (unverified)	Sep 5, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 148,272 Turns: 93 Cost: $16.0618	Not publicly available
`trial_c2af9a469003476d` GPT-5.6-sol · default (unverified)	Sep 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available