Architecture as the Agent's Guardrail

Outgrowing the Vibe Code · Jul 9, 2026 · 11m

An agent has no institutional memory — every session it re-infers your codebase's structure from whatever code is in context. That means the erosion that takes a human team a year can happen in a single day. But constraints don't slow agents down; they make them faster. Ada and Boris walk through the foundational design pattern that turns this dynamic in your favor: layered architecture (presentation, application, domain, infrastructure), where dependencies flow downward only and the domain layer depends on nothing, giving the agent a deterministic answer to "where does this code go?" They…