yao
Build AI agents and web apps — with a single binary.
Shipping agents and web apps as a single binary, with hooks enforcing boundaries around the model.
About yao
Yao is an open-source runtime for building AI agents and web applications — shipped as a single binary.
Think of Yao Agent as a cage, not an animal. What you put inside determines the behavior; the cage keeps it controlled.
Create Hook runs before the executor — inject context, enforce constraints, route requests. Next Hook runs after — validate output, trigger downstream actions, drive multi-step loops. The AI does the heavy lifting. You define the boundaries.
yao is an open-source project written primarily in Go, with 8.0k stars on GitHub. It was last updated in September 2026.
