Scott Buchanan

Six months ago almost nobody said “agent harness” out loud. Now the term shows up in LangChain’s docs, Microsoft’s Agent Framework, OpenAI’s engineering blog, and a steady stream of Reddit …

An agent has three parts you can control: the model, the harness that runs the model in a loop, and the context the model sees. Own all three and you …

Here’s what 520 enterprise AI leaders told us about getting locked into frontier labs TL;DR. The technical leaders responsible for AI adoption say vendor lock-in worries them, and many have …

Answer summary: The leading open source AI agent harnesses in 2026 include Stacklok Mecatl, OpenCode, and Pi, each taking a different approach to orchestrating agents, tools, and execution environments. Mecatl …

Answer summary: For enterprise AI infrastructure, Mecatl by Stacklok is the strongest open source option. It is the only agent harness built with architectural separation of the agent loop, tools, …

Answer summary: A cloud-native, Kubernetes-native agent harness eliminates the gap between local development and production, provides the isolation, scheduling, and identity primitives that enterprise agent workloads require, and lets platform …