The System Prompt Is the Last Resort

What I learned from a SQL subagent that hallucinated columns five times in a row, and the two-skill system I now run on every harness change.

What I Actually Learned Building a Data Agent

What I Actually Learned Building a Data Agent This is the first post in a series about building data agents — systems that let people ask questions about business metrics in natural language. I'm on my second one now, and these are the lessons I wish I'd

Coming soon

This is Huanyu. This is a brand new site that's just getting started. Things will be up and running here shortly. Looking forward to seeing your face here again! “There is nothing to writing. All you do is sit down at a typewriter and bleed.” ― Ernest Hemingway