AI skills based on official guidelines

One of rust's (many) outstanding features as a language is the quality of the documentation. Not just the library docs, the books, the reference but also the various guidelines. While much can be deterministically checked and therefore "documented in code" - rustc, clippy & rustfmt - there are also many points which aren't so balck-and-white. That's where the Rust API Guidelines and How to write documentation - The rustdoc book come in. The quality of guidance they give to human developers mak...