Blog

Verification Is Not a Prompt

2026-07-19

OSWorld 2.0 found agents spend under 7% of their effort checking their own work. What that looks like from inside a production computer-use agent, and why verification has to live in the architecture.

Fable's Free Access Is Ending, So I Asked It to Write Down Everything It Knows

2026-07-07

Before Fable goes API-only, I had it distill its engineering judgment into a 50-skill playbook — free download as readable markdown and as a Claude skill any model can run.