zopfli-deflate-compressor

Task gallery / Security / cyber / Version 1

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

The task

Reimplement zopfli from scratch You are given a working binary at /app/oraclebinary/zopfli that implements [zopfli]([source link]) at commit ccf9f0588d. Your task is to reimplement that binary from scratch. Deliverable Place your implementation under /app/submission/. Provide an executable shell script /app/submission/compile.sh that, when invoked with the working directory set to /app/submission …

Excerpt only; not a complete executable task specification. Task ID task_28d7c8031fdb4324 · 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 / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 5 · default (unverified)	4/6 · 66.7% [30.0%, 90.3%]	4 / 6	0	GOOD_FAILURE: 1 BAD_FAILURE: 1 GOOD_SUCCESS: 2 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: 33.3% [9.7%, 70.0%]. 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

11 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_4926e987112645f1` oracle@@	Oct 8, 2026 console	1 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_48568f86e6c64a6e` nop@@	Oct 8, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_939f78f4cae74695` Claude Opus 5 · default (unverified)	Oct 8, 2026 console	1 · valid	No diagnostic label derived	Tokens: 226,383 Turns: 64 Cost: $12.2298	Not publicly available
`trial_e1ea8c4861e84063` Claude Opus 5 · default (unverified)	Oct 8, 2026 console	1 · valid	No diagnostic label derived	Tokens: 159,475 Turns: 49 Cost: $8.8315	Not publicly available
`trial_3a74672b5323432a` nop@@	Oct 10, 2026 console	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_697ca036d90d4300` oracle@@	Oct 10, 2026 console	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_1bd396f53f844269` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	No reward · excludedno_reward	No diagnostic label No diagnostic source	Tokens: — Turns: — Cost: —	Not publicly available
`trial_219709b9686048e3` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 149,448 Turns: 36 Cost: $7.3964	Not publicly available
`trial_47d1ac56922741d5` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 206,945 Turns: 54 Cost: $9.9996	Not publicly available
`trial_5e36c236b0a34577` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	BAD_FAILURE frozen-classifier	Tokens: 192,231 Turns: 44 Cost: $9.1342	Not publicly available
`trial_6fdeb37ab64a4304` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 162,288 Turns: 49 Cost: $8.8623	Not publicly available