{"method":["Protocol declared before the first call: 5 cases with deterministic validators (behavioral checks in a sandbox, canonical JSON or exact text).","Claude Code: Haiku, Sonnet, Opus and Fable at default effort, plus Opus at low and high, 3 repetitions. Codex: GPT-6.1 Sol at low, medium and high, 2 repetitions.","Isolation: fresh empty working folder, tools off, no MCP servers, no session persistence, one turn. One call at a time per account.","Every attempt is kept. Nothing is retried. A cell that did not run is shown as trimmed.","All 130 planned calls ran. Nothing was trimmed or retried, and no run hit a usage or rate limit.","Cost per passing answer: list price × reported tokens for every call in the configuration (cache reads and writes priced separately), divided by its passes."]}