It's coding at 10-20x speed, but tangibly this is at 1.5-2x the overall productivity. The coding speed up doesn't translate completely to overall velocity yet.

I am beginning to build a high degree of trust in the code Claude emits. I'm having to step in with corrections less and less, and it's single shotting entire modules 500-1k LOC, multiple files touched, without any trouble.

It can understand how frontend API translates to middleware, internal API service calls, and database queries (with a high degree of schema understanding, including joins).

(This is in a Rust/Actix/Sqlx/Typescript/nx monorepo, fwiw.)