A coding agent that can refine its own harness
Prime Agent is an open-source, self-improving coding harness built around two abstractions: the Recursive Language Model (RLM) and the Continual Harness. With Opus 5, it achieves 95.5% on ARC-AGI-3, surpassing the reported human expert baseline.
Prime Agent launched on Product Hunt on 2026-08-10 and has 117 upvotes and 3 comments so far.
This tool is open source.