Primitive-Augmented Transformers with Event-Role Side State: Architecture Evidence, Warm-Started Modulation, and Decoupled Tool Interfaces
PAT-ER, a decoder architecture with a normal token stream, an event-role register stream, and a primitive register stream, is introduced; the model is not a theorem prover and does not achieve perfect unseen tool-name copying; the contribution is a measured architecture signal and a usable, guarded interface.