Pi Protocol

Pi is a Claude Code plugin for long-running engineering work.

Use it when a task is large enough to benefit from:

• an explicit spec before coding
• one coherent build pass instead of ad hoc edits
• a real evaluator pass that can force targeted repairs
• mandatory second-provider critique from Codex at every phase checkpoint

Pi is intentionally Claude-native. Codex is a supporting CLI, not a parallel runtime or install target.

Three commands:

• /pi:plan creates the working brief, rubric, and ordered task slices
• /pi:execute runs the generator loop against that brief
• /pi:review runs final QA and presents the scorecard