export declare const UI_RESOURCE_MIME_TYPE = "text/html;profile=mcp-app";
/**
 * Versioned resource URI: `ui://openephemeris/<slug>?v=<server version>`.
 *
 * ChatGPT caches a `ui://` resource per connector and never re-reads it for a
 * URI it has seen — a deploy alone does not refresh the widget. Stamping the
 * package version into the URI makes every release a new URI, so hosts fetch
 * the new bundle on their own. Caveat: a widget change must ship with a
 * version bump to bust the cache (same version ⇒ same URI).
 *
 * The SAME string is used in the tool `_meta` (ui.resourceUri and its aliases),
 * in resources/list and in resources/read, on both transports.
 */
export declare function uiResourceUri(slug: string): string;
/** The URI without its `?v=` query — what resources/read matches on. */
export declare function uiResourceBase(uri: string): string;
/**
 * CSP the bundles actually need: none. Every bundle is a single self-contained
 * HTML file (JS/CSS inlined, images and icons as data: URIs), and the apps talk
 * to the host over postMessage only — no fetch, no remote script, style, image
 * or font. Empty lists are the spec's secure default; declaring them explicitly
 * documents that this is deliberate, not forgotten.
 */
export declare const UI_RESOURCE_CSP: {
    connectDomains: string[];
    resourceDomains: string[];
};
/**
 * `_meta` for a `ui://` resource (resources/list entry and resources/read
 * content item). Two wire forms, same values:
 *
 *   ui.*       — MCP Apps (SEP-1865) McpUiResourceMeta.
 *   openai/*   — ChatGPT's aliases for the same fields.
 *
 * prefersBorder: true — the host draws the card border and background; the apps
 * therefore paint no card, border or glow of their own (shared/tokens.css).
 *
 * ui.domain / openai/widgetDomain are deliberately NOT set: their format is
 * host-specific (a hash subdomain on Claude, a derived *.oaiusercontent.com on
 * ChatGPT) and a wrong value can stop the widget rendering. Omitted = the
 * host's default sandbox origin, which is what every live render uses today.
 */
export declare function uiResourceMeta(widgetDescription: string): Record<string, unknown>;