Worth Reading
Pieces from smart people we found useful
Addy Osmani
Agent Harness Engineering
Treat the scaffolding around the model as the real product.
Simon Willison
GPT-5 pricing and model card
What frontier tokens actually cost once reasoning tokens count.
Chip Huyen
Designing Machine Learning Systems
Production ML without the fog: still the clearest systems primer.
Lilian Weng
LLM Powered Autonomous Agents
The agent stack primer everyone still sends to new hires.
Anthropic
Building effective agents
When to use workflows vs agents, from the people shipping them.