VLA skills that score 77-100% in isolation stall from chained states in BEHAVIOR-1K; failures trace to next-skill readiness, target grounding, and control execution.
the head camera does not show any object identifiable as a radio close-up and prominent at arm-reach distance. . . the robot has not successfully navigated to the radio,
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Diagnosing Semantic Handoff Failures in Agent-Orchestrated Vision-Language-Action Skill Composition
VLA skills that score 77-100% in isolation stall from chained states in BEHAVIOR-1K; failures trace to next-skill readiness, target grounding, and control execution.