Archives

Agent = Model + Harness. We define what a harness is and derive the core components today's and tomorrow's agents need by working backwards from desired agent behavior.

Our coding agent went from Top 30 to Top 5 on Terminal Bench 2.0. We only changed the harness. Here's our approach to harness engineering.

The best agent products aren't the most flexible, they're the most opinionated. Learn why agents need fewer knobs, not more, and how to design around model intelligence spikes.

Understanding how modern planning agents work as just-in-time, adaptive workflow generators and their role as universal bridge nodes in workflow builders.

A guide to the built-in tools available in Claude Code, including parameters, usage patterns, and examples. Straight from the horse's mouth. :)

A running list of helpful resources for building agents.

As tasks require more autonomous behavior, we're seeing a shift from LLM APIs to Harness APIs. Explore how Claude Code's SDK enables rapid agent development through HaaS (Harness as a Service).

Quick intro to what I'll be sharing here.