Evidence Lab

Completed run. Saved patch. Replayed checks.

One local Codex Hyper case reached the completion bar: accepted task, frozen baseline, implementation patch, strict checks, a fresh verifier, and a clean replay. It is a case study, not a benchmark.

Captured 23 July 2026 Replayed 24 July 2026 Hyper · Relay route 1 completed case
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Completed case · Node.js scheduler

Outcome replay PASS Workflow provenance PARTIAL Exact local build recorded

Hyper implemented the contract and closed the gates.

The task added bounded logical concurrency, retries, per-attempt timeouts, caller cancellation, ordered results, and deterministic tests while preserving the legacy two-argument API.

13/13Strict Node tests passed.
PASSJavaScript syntax check.
PASSFresh verifier against the final clarified contract.
PASSPublished patch replay on a fresh copy.

What the implementation covers

Hostile rejection values, late settlement, legacy callback behavior, dynamic job arrays, invalid null options, and abort/timeout ties.

What the record proves

The saved patch applies to the frozen baseline and passes its published checks. It does not prove that Hyper is generally better than another workflow.

Residual limit. JavaScript cannot stop physical work that ignores AbortSignal. The accepted contract requires cooperative workers and consumes late settlement to avoid unhandled rejections.
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Publication bar

I publish only completed runs, with their limits.

A featured run needs a dated task, frozen input, resulting patch, commands, a verifier verdict, and a replayable outcome. This record meets that bar.

Replayable outcome

The baseline, task, patch, checks, hashes, and final verifier summary are public and linked above.

Partial workflow provenance

Raw agent transcripts, runtime model ID, token usage, and end-to-end duration were not retained. The code outcome can be replayed; the complete orchestration conversation cannot.

Build provenance. This case was captured from historical local build identifier 1.0.0+codex.20260716085645 and the frozen source commit recorded in the manifest. Hyper ships with Codex Council 1.1.0; this evidence supports this case only, not a general performance claim.