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Author @martin_casado says he is enjoying working on Exo, described as a “fully…

2026-07-25 · 18:41 UTC ·@martin_casado ·0 min read

Brief

Exo is a project by @martin_casado framed as a fully recursive, self-improving agent + harness architecture that can safely modify itself at runtime to get better at tasks. He highlights the systems engineering difficulty, a strong group of systems contributors, links the GitHub repo (github.com/exoharness/exo), and invites interested people to join via Discord replies.

Why it matters

Author @martin_casado says he is enjoying working on Exo, described as a “fully recursive self improving agent harness” and a challenging systems problem.

Key details

  • Exo’s repo is github.com/exoharness/exo and is presented as an agent+harness architecture that can safely edit all aspects of itself at runtime to improve task performance; the author invites folks to join via Discord replies.
Source evidence

I've really been enjoying working on Exo (a fully recursive self improving agent harness) because it's a super tricky systems problem. But also, we have a really great group of systems folks chipping away at it.

Discord in reply if you wanna join ..

github.com/exoharness/exo

Link

GitHub - exoharness/exo: Exo is an agent + harness architecture that is fully recursive, able to...

Exo is an agent + harness architecture that is fully recursive, able to safely edit all aspects of itself at runtime to get better at your tasks. - exoharness/exo
github.com