import{type PropertyValues,type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';export interface McpAppPermissions{readonly camera?:boolean;readonly microphone?:boolean;readonly geolocation?:boolean;readonly clipboardRead?:boolean;readonly clipboardWrite?:boolean;}export interface McpAppCsp{readonly connectDomains?:readonly string[];readonly resourceDomains?:readonly string[];readonly frameDomains?:readonly string[];}interface McpAppResourceBase{readonly uri:string;readonly title?:string;readonly csp?:McpAppCsp;readonly permissions?:McpAppPermissions;readonly metadata?:Readonly<Record<string,unknown>>;}
/** An executable app resource with exactly one document source. */
export type McpAppResource=McpAppResourceBase&({
/** Executable app document. It is assigned only to a uniquely-origin sandboxed iframe. */
readonly html:string;readonly src?:never;}|{
/** HTTP(S) or relative app URL served as a separate resource. */
readonly src:string;readonly html?:never;});export interface McpAppToolCallDetail{requestId?:string;name:string;args:unknown;
/** Opaque, monotonically increasing id of the frame generation that raised this request. Every
*  valid `resource` replacement, adoption, or reconnect starts a fresh generation, so a host
*  that hands this value back to `postToolResult()` has its asynchronous reply dropped instead
*  of delivered into whatever unrelated app is mounted by the time it resolves. */
frameGeneration:number;}export type McpAppToolResultOptions={frameGeneration:number;result:unknown;error?:never;}|{frameGeneration:number;error:string;result?:never;};export interface LyraMcpAppEventMap{'lr-mcp-ready':CustomEvent<{uri:string;}>;'lr-mcp-tool-call':CustomEvent<McpAppToolCallDetail>;'lr-mcp-send-message':CustomEvent<{message:unknown;}>;'lr-mcp-open-link':CustomEvent<{href:string;}>;'lr-mcp-log':CustomEvent<{level:string;value:unknown;}>;'lr-mcp-resize':CustomEvent<{height:number;}>;}
/**
* `<lr-mcp-app>` — hosts an MCP App-style executable UI resource in a uniquely-origin sandbox.
* Inline resources receive a trusted leading CSP meta before any caller-controlled HTML token, so
* comments or script strings cannot redirect policy insertion away from the parsed document head.
* Remote resources accept only relative and HTTP(S) document URLs and never send a referrer.
* The frame can request tools, messages, links, logs, and resizing only through typed events;
* the component never performs those external actions itself.
* Resource records and nested CSP/metadata collections are bounded clone-owned readonly
* snapshots. Create and reassign a new resource record after changes.
*
* @customElement lr-mcp-app
* @event lr-mcp-ready - The frame loaded. `detail: { uri }`.
* @event lr-mcp-tool-call - The frame requested a tool.
*   `detail: { requestId?, name, args, frameGeneration }`. `frameGeneration` is an opaque id for
*   the frame that raised the request; hand it back in `postToolResult()`'s options so an
*   asynchronous reply arriving after the frame changes is dropped rather than delivered into the
*   unrelated app now mounted.
* @event lr-mcp-send-message - The frame requested a conversation message.
* @event lr-mcp-open-link - The frame requested navigation; the host decides whether to honor it.
* @event lr-mcp-log - The frame sent a diagnostic value.
* @event lr-mcp-resize - The frame requested a clamped height.
* @csspart base - The sandbox frame wrapper.
* @csspart frame - The sandboxed iframe.
* @csspart loading - The pre-load status.
* @csspart error - The invalid-resource error.
* @status stable
* @since 7.0.0
*/
export declare class LyraMcpApp extends LyraElement<LyraMcpAppEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];
/** Clone-owned resource snapshot. Reassign a new record after changing its CSP collections. */
resource:McpAppResource|null;height:number;maxHeight:number;
/** Purpose-specific iframe title used ahead of the resource title and localized fallback. */
label:string;
/** Programmatic iframe title when no authored host `aria-label` attribute is present. An empty
*  value cannot leave the executable frame unnamed. */
accessibleLabel:string|null;private loaded;private frameHeight;private frameGeneration;private frame?;private loadingAnnouncementSink?;private errorAnnouncementSink?;private suppressNextResourceAnnouncement;private messageWindow?;private resourceAvailable;private invalidateFrame;private syncAnnouncementSinks;connectedCallback():void;disconnectedCallback():void;adoptedCallback():void;private bindMessageWindow;private unbindMessageWindow;protected willUpdate(changed:PropertyValues):void;protected updated(_changed:PropertyValues<this>):void;private expectedOrigin;private onLoad;private onMessage;private post;postHostContext(context:unknown):void;
/** Resolves a prior `lr-mcp-tool-call`. The required frame generation binds the asynchronous
* reply to the frame that requested it; stale, uncorrelated, and ambiguous replies fail closed. */
postToolResult(requestId:string,options:McpAppToolResultOptions):void;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-mcp-app':LyraMcpApp;}}export{};