Ep 7 | Jeffrey Zhang & Siddh Shah - Guardrails beyond Vibes | [un]prompted 2026

Day 1 | Stage 1 Shares how Stripe is using AI agents to streamline high-friction security workflows including threat modeling and security request routing. Covers practical design choices that made these agents reliable in practice: modular orchestrator/child architectures, targeted tools, structured inputs/outputs, and validation to reduce variance and improve determinism. Walks through measuring and improving agent quality over time using offline and online evaluation loops. Jeffrey Zhang is Security Engineer, Stripe. Siddh Shah is Software Engineer, Stripe. Watch on YouTube: https://www.youtube.com/watch?v=KrKk8BGPeQA