Fetch and Send Data skill: what it does and how to install it

What it does. Guides Blazor data access by registering HttpClient or services, loading data through the component lifecycle, and showing loading and error states. It covers cancellation, parameter-driven reloads, POST, PUT and DELETE requests, and service abstractions for Server, WebAssembly and Auto modes.

When to use it. Use it when components fetch data from a backend or submit data to an API. It does not cover form validation, prerendering persistence or project scaffolding.