A few resources on harness engineering I'm really enjoying learning from recently: * walkinglabs.github.io/learn-… - excellent course that covers how to constrain agent behavior in a productive way, what the challenges are using LLMs especially maintaining context, and how to make the harness more agentic and work to the proper conclusion of a task * twotimespi.dev/ - build a simplified agent in Python (Tau). start with "uv tool install tau-ai" * humanlayer.dev/blog/skill-is… - lessons and learnings from failing and succeeding to build harnesses for coding agents over 12+ months * langchain.com/blog/the-anato… - higher-level overview of the many components that need to come together properly in a harness to make an agent work

Jul 2, 2026 · 8:40 PM UTC

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I meant to tag @_alejandroao on this post. Thank you & the @huggingface crew for Tau, such a great idea and implementation!
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Replying to @fullstackpython
Brilliant sources, thanks for sharing!!
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🙏 still early days for harness engineering it’s great to see such high quality resources already exist for it
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Replying to @fullstackpython
bookmarking! thanks for always sharing findings and wisdom :)
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Replying to @fullstackpython
this is actually helpful, i keep seeing harness engineering and only understanding the nouns so having the failure notes in one place rules
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Replying to @fullstackpython
context maintenance 那块真的挺容易踩坑的
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Replying to @fullstackpython
Thanks matt
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