Vanity Engineering Review A diagnostic skill that identifies code, architecture, and technical decisions built to impress rather than to ship. Vanity engineering is entropy disguised as craftsmanship — it increases complexity without proportional capability gain, and it compounds maintenance cost while delivering zero additional user value. Core Premise The only legitimate purpose of engineering is to solve a problem someone actually has. Everything else — elegant abstractions nobody traverses, microservices that serve one endpoint, custom frameworks that replicate existing tools, type system…