From Implementers to Solution Architects
Feb 26, 2026Agoda Engineering

Summary
This post details the shift in the software development bottleneck from implementation to specification and verification due to AI coding assistants. It introduces the 'Grey Box' approach, emphasizing clear intent, testable acceptance criteria, explicit corner cases, and captured technical decisions in specifications. It highlights the increased importance of specification as the primary interface and the shift in engineer roles to solution architects. The post also discusses the move from code inspection to evidence-based verification, with layered automated checks and human focus on architectural adherence and test-to-spec fidelity.