Arena Open a todolist with one entry per phase (Frame, Fan out, Cross-judge, Pick, Graft, Verify) before launching anything. Phase A: Frame Every candidate gets the same prompt, so the prompt is the contract. 1. State the artifact each candidate is producing. 2. Derive the rubric, 3-6 concrete gradeable criteria for what success looks like on this task. It is the picker's tool in Phase D. Candidates only see the task. 3. Pick the runners. Use the line in the pstack settings file ( in Cursor, in Claude Code, in other harnesses). If the file or that line is missing, default to one each on and .…