This skill should be used after modifying any code that forms part of the developer interface of a project — including CLI commands, public APIs, error handling, logging, setup scripts, docs, or module structure. Audits Developer Experience across nine dimensions grouped into surface DX (CLI ergonomics, error handling, setup friction, output/feedback, docs-versus-runtime agreement) and code DX (API ergonomics, debugging/observability, testability, extensibility). Produces a prioritized report of findings plus an explicit list of claims it could not verify without executing the interface. Does not modify code.
