Kashmir

Only explicitly declared fields can be serialized, preventing accidental exposure of sensitive data like passwords, as shown in the basic representations example where fields must be whitelisted.

Automatically preloads ActiveRecord associations to avoid N+1 queries, optimizing database hits, demonstrated in the ActiveRecord section where queries are balanced.

Caches each level of the dependency tree separately, allowing efficient cache management and the ability to fill cache gaps from the data store, as described in the caching section.

Offers multiple DSLs like Kashmir::Dsl and Kashmir::InlineDsl for expressive syntax that reduces boilerplate, making it easier to define nested and complex representations.