MIT CSAIL paper introduces JAZ, a one-primitive agent framework
JAZ lets an LLM write code and recursively call a single invoke primitive, with inputs and history exposed as variables. With prompting only and no memory system, the paper reports an 8% gain over Letta (MemGPT) at half the cost on the recall-heavy part of StuLife, and a 4% gain over ACE at lower cost on AppWorld.