Several Resources on Harness Engineering That I've Enjoyed Exploring Recently

» https://walkinglabs.github.io/learn-harness-engineering/en/ — a great course on how to effectively constrain agent behavior, the issues that arise when using LLMs (especially with context retention), and how to make harnesses more agent-like and ensure tasks are completed correctly.
» https://twotimespi.dev — create a simplified agent in Python (Tau). Start with uv tool install tau-ai.
» https://humanlayer.dev/blog/skill-issue-harness-engineering-for-coding-agents — lessons and insights from failures and successes in building harnesses for coding agents over the past 12+ months.
» https://langchain.com/blog/the-anatomy-of-an-agent-harness — a high-level overview of many components that need to come together correctly in a harness for the agent to function.