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dspy.cot

Overview​

def cot(func) -> dspy.Module​

The @cot decorator is used to create a Chain of Thoughts module based on the provided function. It automatically generates a dspy.TypedPredictor from the function's type annotations and docstring. Similar to predictor, but adds a "Reasoning" output field to capture the model's step-by-step thinking.

  • Input: Function with input parameters and return type annotation.
  • Output: A dspy.Module instance capable of making predictions.

Example​

import dspy

context = ["Roses are red.", "Violets are blue"]
question = "What color are roses?"

@dspy.cot
def generate_answer(self, context: list[str], question) -> str:
    """Answer questions with short factoid answers."""
    pass

generate_answer(context=context, question=question)