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Coding-agent harness from Meta built for its Muse models.
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"The Cognitive Revolution"· 7 Nov
Brian Zhou says the poor showing is mostly a harness design issue: the Muse Wonder model paired with Muse Code, Meta's native harness, works from a task list with a goal condition that ends the run prematurely, so Thoughtful had to revive agents in new sandboxes with access to their old runs and messages.