MemCompiler: Compile, Don’t Inject – State-Conditioned Memory for Embodied Agents

Abstract: Embodied-agent memory systems commonly inject retrieved memory as static context at episode start, which becomes misaligned as execution state evolves. MemCompiler reframes memory use as State-Conditioned Memory Compilation: a learned compiler reads a structured Brief State and dynamically selects and compiles relevant memory into executable guidance delivered through text and latent Soft-Mem channels. Across ALFWorld, EmbodiedBench, and ScienceWorld, it improves open-source backbones by up to 129%, approaches frontier closed-source systems, and reduces per-step latency by 60%.

@article{memcompiler,
  title={MemCompiler: Compile, Don't Inject -- State-Conditioned Memory for Embodied Agents},
  author={Xin Ding and Xinrui Wang and Yifan Yang and Hao Wu and Shiqi Jiang and Qianxi Zhang and Liang Mi and Hanxin Zhu and Kun Li and Yunxin Liu and Zhibo Chen and Ting Cao},
  journal={arXiv preprint arXiv:2605.07594},
  eprint={2605.07594},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2605.07594},

  year={2026}
}