M2 — Module-Shape Selection (CoT / ReAct / PoT / Predict) "Pick the lowest-power Module that works. Default to ChainOfThought." — DSPy docs [dspy.ai/learn/programming/modules/] This overlay sharpens that line into a rubric : the default is not a law. The shape is a function of the task structure , and CoT is only one of four answers. This is an enhancement overlay . It assumes the [[dspy]] library skill is loaded (it provides , , , APIs and install). This file adds only the decision the lib skill leaves implicit. Cross-link: [[dspy]], and the optimizer SOP . --- 1. 何时激活 (When to activate) Act…