Cooperative two-agent coding dataset: 211 task pairs across 18 repos, generated with
mini_swe_agent on Qwen/Qwen3.5-9B in coop setting using a milestone-checkins prompt variant —
agents use periodic structured check-ins at predefined milestones to coordinate progress and
surface integration conflicts early. Patches are auto-merged after both submit.
Coverage caveat: Only 146 of 211 pairs were successfully evaluated (65 had eval errors).
The high agent Error rate… See the full description on the dataset page:
https://huggingface.co/datasets/CooperBench/qwen35-9b-milestone-checkins-coop.
