Notes on agentic systems, sovereignty and the work around the model.

Hands-on, metric-based, occasionally unpopular. Written between architecture reviews — not instead of them.

29 Oct 2026
6 min read

Stop asking if 97 is prime: this is the era of harnesses

The prime-number test belongs to a debate that peaked in 2023. The value has moved out of the sentence you type and into the system around the model — the tools it may call, the context it receives, the contract it works under, and the checks it must pass.

Harness engineeringDORAEvaluation

Next up: measuring agent work with DORA metrics without turning them into a dashboard nobody acts on — and what the fourteen sovereignty axes look like when a harness, not a human, does the work.