# What Can One Sentence Fix: Failure Classification and Minimal Language Correction for Frozen VLA Policies

- Source: arXiv cs.RO
- Published: 2026-10-27T04:00:00.000Z
- RoboHot: https://robohot.news/en/items/g6ykkweyyxho3y801lbzblygr
- Original: https://arxiv.org/abs/2608.29967

## Summary

The authors annotated each failure of OpenVLA-OFT and pi0.5 on out-of-distribution LIBERO-90 tasks, identifying four failure modes, of which only execution misalignment can be fixed by a single retrospective language correction.