Lauren Tan proposes agent-drawn statecharts checked with TLA+

Lauren Tan says she asks an agent to draw a statechart of a feature, then uses pstack's /create-formal-verification-skill to check it with TLA+ and find bugs.

She says the approach helps the developer and the agent understand the code and the intended user flow, and catches issues users would otherwise hit. The post on X dated 2026-10-20 is the only report so far, and it gives no measured results.