sveld is a developer‑tool that scans Svelte component files and automatically produces TypeScript declaration files (`.d.ts`) plus optional Markdown/JSON API docs. It extracts props, events, slots, context and rest‑props information—using the Svelte compiler and JSDoc annotations—to make third‑party Svelte libraries fully compatible with the Svelte Language Server and IDE‑based type‑checking. The package is aimed at Svelte component authors who want zero‑effort type support for their libraries, especially those targeting the Carbon Components Svelte ecosystem.