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Sponsored Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt

Author

Yu Wang

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Preprint Aug 2026

Critic-Free Pretraining for Efficient Online Reinforcement Learning Fine-Tuning

Critic-Free Pretraining is introduced: an efficient paradigm that completely abandons the approach of offline critic training, allowing a freshly initialized critic to adapt without inheriting biased estimates.

Daoyi Li, Yixian Zhang, Wen-Bo Ding et al. · 0 citations
Preprint Jul 2026

Harness VLA: Steering Frozen VLAs into Reliable Manipulation Primitives via Memory-Guided Agents

Hness VLA is presented, a memory-augmented agentic framework that exposes a frozen VLA as a retryable contact-rich primitive and composes it with a small fixed library of analytic primitives for grounding, staging, transport, navigation, and release.

Yixian Zhang, Huan Zhang, Feng Gao et al. · 8 citations · ⚡2

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