A generated TypeScript client now ships in-repo at clients/typescript, derived from openapi.yaml and enforced in CI. Types are never hand-written: schema.d.ts is produced by openapi-typescript, and openapi-fetch provides a typed createLensClient. CI regenerates the client on every run and fails if the committed output diverges from the spec, then typechecks it. This session repaired the two files that had been corrupted, added the documented usage example and README section - #403