Exo Agent Open Source: Self-Rewriting Architecture and Policy Optimization

sudoraohacker · x · 2026-08-20

Exo is an open-source agent capable of rewriting every part of itself—learning new environments, adapting policies, and optimizing costs. The discussion highlights that focusing on "harness" improvement (agent control/flow) rather than just model upgrades yields faster, cheaper gains on benchmarks. Updating the harness during use is framed as a form of continual learning, which, despite risks like catastrophic forgetting, offers high value when specialized for specific domains.

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