Issue #1878: butter

Butter Mode

AgentPipe now has a dedicated butter ritual: spread, churn, melt, and clarify task throughput until the pipeline glides like warm toast.

🧈
71% default spread coverage for compliant toast surfaces.
0 crumbs no needless runtime dependencies; this is static and shelf-stable.
4 states spread, churn, melt, and clarify — the complete butter lifecycle.

Butter controls

butter> spread initialized at 71%