# Researcher reverse-engineers Gemini 4 Argon skill library and open-sources robotics harness

- Source: Ken Goldberg
- Published: 2026-10-21T18:02:47.000Z
- RoboHot: https://robohot.news/en/items/gdhl6g4cah8pyag69tu655or8
- Original: https://x.com/Ken_Goldberg/status/2112967853196636188

## Summary

Ken Goldberg shared the work of his postdoc Shuangyu0_0Xie: she found that Gemini 4 Argon performed well on spatial robotics queries, so she used Claude to reverse-engineer its skill library and implemented the robotics harness described in the Gemini 4 Argon report. The harness enabled Gemini to complete a zero-shot bimanual handover, and it is now open source.