Language Server Protocol

1. Base protocol

   Header and content parts, JSON-RPC messages.

2. Lifecycle: initialize

   Capability negotiation and initialize handshake.

3. Text document synchronization

   didOpen, didChange, didClose and sync kinds.

4. Completion

   Completion requests and items.

5. Hover

   Hover contents.

6. Go to definition

   Definition and related location requests.

7. Diagnostics

   publishDiagnostics and pull diagnostics.

8. Workspace features

   Workspace symbols, configuration and file watching.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.