Daily briefs

Every brief, newest first.

2026-10

• 2026-10-21 —
• 2026-10-20 — Evals are moving from a craft to an operating system. Google published a Day 0→Day 2 playbook for agent evals plus AQuA, an open-source agent that audits production traces. Hamel Husain showed that cheap 'decision models' can replace LLM judges, but only after you tune their thresholds.