{"method":["Sample: 25 of the 500 Verified instances, stratified by public difficulty (seed 20261004). Difficulty is how many of the 11 public mini-SWE-agent v2 runs solved the instance.","Campaign 1 ran 25 instances on platform build f0ac3a8a. Six compiled-extension instances could not import in the worker checkout, so the declared rule replaced them in the same band.","Campaign 2 ran those compiled instances (plus two replacement candidates) on build 236c0d3f after a sandbox fix.","One attempt per instance. No retries, no operator answers: an escalation is graded on what was delivered.","Grading uses the official SWE-bench harness and instance images (under amd64 emulation). The gold patch resolved on the host for every instance.","Agent runs its full pipeline (onboarding, research, plan, act, verify, review) on claude-sonnet-5-5 through a subscription CLI. Costs are list-price estimates of the recorded tokens."]}