arXiv AI
Sep 18

Coding Agents with an Obstacle-Aware Harness for Safe Robot Manipulation

The paper introduces SafeHarness, an obstacle‑aware framework that improves the safety of coding agents for robot manipulation. By decomposing tasks into route planning and contact execution, the harness enables the agent to prioritize collision avoidance, achieving 71.9% task success and 87.5% collision avoidance—significantly better than prior methods. The study demonstrates that safety constraints can be effectively integrated into language‑model‑driven robot controllers.

By Bingxin Xu, Yuzhang Shang, Zhen Dong, Emilio Ferrara
arXiv AI
4d ago

Constant-Time Planning for Chaining Collision-free Motion to Manipulation Behaviors

The paper introduces the Behavioral Constant-Time Motion Planner (B-CTMP), an extension of Constant-Time Motion Planning that handles two-step manipulation tasks in semi-structured environments. B-CTMP constructs neighborhoods in object-pose space and uses statistical certification to ensure a user-specified success rate, caching plans only when repeated rollouts meet this threshold. The method is evaluated on shelf picking, plug insertion, and wheel replacement, showing consistent success where baseline planners fail and rejecting infeasible poses in constant time.

By Nayesha Gandotra, Itamar Mishani, Lai Yuan, Oren Salzman, Maxim Likhachev
arXiv AI
Aug 25

Physical Agentic AI: An Architecture for Orchestrating a Robot Crew with LLMs

Physical Agentic AI proposes an architecture that links semantic planning with physical execution for robot crews. Each robot exposes a typed skill library, while a foundation model planner decomposes tasks into phases and assigns robot‑skill pairs. A Robot Orchestrator validates and authorizes one skill at a time, ensuring actions are grounded in robot capabilities, system state, and workflow constraints before actuation.

By Xinyuan Liu, Eren Sadikoglu, Riana Chatterjee, Ransalu Senanayake
arXiv AI
5d ago

Make Code as Policy Great Again: Frontier Agents Write, Call, and Evolve Robot Tools

The paper introduces URAI, a Universal Robot‑Agent Interface that separates robot control into two roles: a programming agent that writes reusable, task‑specific tools from intent, and an execution agent that calls these tools in a feedback loop. This design keeps high‑level decision making in the model while delegating low‑level motion to code, allowing tool revisions to persist across episodes without retraining the foundation model. Experiments on RoboDojo and AgileX tasks show significant gains in success rate, speed, and token efficiency compared to direct fingertip control and pre‑written programs.

By Shijia Ge, Alex Zhou, Jianshu Zeng, Yexing Wan, Di Wu, Zelin Zheng, Yazhe Wang, Zhiqi Jia, Xuan Shangguan, Jay Zhu, Yijun Liu, Lingyu He, Sihang Wu, Xiao He, Hongcheng Gao