I gave Jev a robot arm.
Gave Jev control of a robot arm that picked up a hook to drag an out-of-reach cube into a box without programmed tool use.
The original post
I gave Jev a robot arm.
Goal: red cube in the green box.
Catch: the cube was out of reach.
It grabbed a hook, dragged the cube closer, put the hook down, and finished the job. Tool use was never programmed, the model just decided.
Fast enough to run a robot 👀
@CompleteSkeptic @typesafeai @dotpem
Engagement when collected
Numbers are a snapshot taken from X when the case was added to the library (schema v1, collected 2026-09-19); they will not match today.
Where this case fits
Filed under general Jev builds. In the pattern Jev is built for, the model answers a bounded question per step — and ordinary code acts on the answer, because the answer is already a value rather than a paragraph. Browse the full case library for the work it sits next to.
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Last updated: 2026-09-22 · sources & corrections · every card links to its author's original post