Theory of Constraints A diagnostic runbook for optimizing any process — a CI/build pipeline, a dev value stream, an Agent Skill or plugin, or a runtime code path — through Eliyahu Goldratt's Theory of Constraints (ToC). The one idea that makes ToC powerful: every system has exactly one binding constraint at a time , and global throughput rises only when you improve that constraint. Effort spent anywhere else produces nothing — "an hour saved at a non-bottleneck is a mirage." This runbook finds the constraint with measurement, then walks the Five Focusing Steps to relieve it without creating n…