import type { ResourceDefinition } from "../resource-registry.js";
/** URI of the built-in hello widget resource. Single source of truth. */
export declare const HELLO_WIDGET_URI: string;
/**
 * Path prefix under which the MCP server serves this widget's browser assets
 * (`/index.js` + `/app-with-deps.js`). Used both by the server's static router
 * and by the widget HTML's `<script src>`.
 */
export declare const WIDGET_ASSET_BASE_PATH: string;
/**
 * App-side ES module for the hello widget, served at
 * `<base>${WIDGET_ASSET_BASE_PATH}/index.js`. Uses the REAL ext-apps `App`
 * (imported from the sibling `app-with-deps.js` the server also serves) for a
 * spec-conformant `ui/initialize` -> `initialized` -> tool-input/result
 * handshake. Ported from the T1 Storybook sample widget (#1236). Kept as a
 * string so it ships in `dist` without a heft asset-copy step.
 */
export declare const HELLO_WIDGET_CLIENT_JS: string;
/**
 * Build the built-in hello widget resource. The widget's browser assets are
 * loaded from `assetBaseUrl` (the MCP server's own public origin), so the host
 * sandbox must be allowed to load cross-origin scripts from it — that host-CSP /
 * cross-origin concern is out of scope for #1237 (handled for Grackle's own host
 * in #1238).
 *
 * @param assetBaseUrl - Public origin of the MCP server, e.g. `http://127.0.0.1:7435`.
 */
export declare function createHelloWidgetResource(assetBaseUrl: string): ResourceDefinition;
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