Current · isolated
Retry-policy patch
A focused JavaScript maintenance task executed through the
clean-room OpenCode and Codex pipeline, with public tests, a
private objective evaluator, immutable patches, time, and
provider-reported cost.
- 42 runtime routes
- 4 review criteria
- public + objective checks
View current results
Patch benchmark
Ledger reconciliation
The first broad patch comparison: 59 coding-agent candidates
solving the same ledger task, with availability kept separate from
quality scoring.
- 59 candidates
- 37 scored patches
- 5 quality dimensions
View ledger results
Current · results published
Bug fixing
Diagnose and repair duplicate IDs, exact money parsing, sales,
refunds, invalid rows, and daily ledger totals.
- 76 tested routes
- public + objective checks
- 4 review criteria
- clean-room execution
View results
Current · results published
Feature implementation
Implement feature overrides and deterministic percentage rollout
from a detailed behavioral contract.
- 62 tested routes
- 84 recorded outcomes
- 4 review criteria
- clean-room execution
View results
Current · results published
Refactoring
Extract one shared event-filtering helper while preserving the
public API and all existing behavior.
- 41 tested routes
- 83 recorded outcomes
- 4 review criteria
- clean-room execution
View results
Current · results published
Repository navigation
Explore an unfamiliar module layout, locate the correct formatter,
and repair account status labels.
- 80 tested routes
- 81 recorded outcomes
- 4 review criteria
- correct-layer change
View results
Current · results published
Tests / edge cases
Repair strict integer-range parsing and author meaningful tests
that survive mutation testing.
- 15 tested routes
- 4 review criteria
- 2 allowed files
View results
Archive · provisional
Historical five-task results
Archived results from the older combined run. Audit found
shared-history contamination, so these records are retained as
evidence but are not part of the new clean-room nomination pages.
- 31 candidates
- 5 old task records each
- not a blind benchmark
View provisional archive
Methodology
Runner and source evidence
The public benchmark runner documents clean-room isolation,
separate candidate testing and judging, objective evaluation,
timing, cost policy, and immutable result artifacts.
- OpenCode + Codex
- MIT licensed
- public artifacts
Open benchmark repository ↗