Module request_shape 

What kind of turn a request body represents.

The pipeline’s shaping stages are otherwise built entirely from facts about the model (ModelContext). This module holds the one thing they need to know about the request: whether it is asking the model to emit a tool call.

It lives here, rather than inside the stage that first needed it, because two stages read the same signal for different purposes — sampling caps the temperature from it, and constrain decides whether to originate a grammar — and a second copy of “does this request carry tools” would eventually answer differently from the first.

Functions

carries_tools

Whether the request carries a non-empty tools array.