export declare const BRIDGE_PROTOCOL_VERSION = 1;
export declare const DEFAULT_BRIDGE_HOST = "localhost";
export declare const DEFAULT_BRIDGE_PORT = 4017;
export declare const DEFAULT_BRIDGE_WS_PATH = "/ws";
export declare const DEFAULT_BRIDGE_HTTP_URL = "https://localhost:4017";
export declare const DEFAULT_BRIDGE_WS_URL = "wss://localhost:4017/ws";
export declare const DEFAULT_REQUEST_TIMEOUT_MS = 30000;
export declare const DEFAULT_EVENT_LIMIT = 200;
export type BridgeApp = "excel" | "powerpoint" | "word" | (string & {});
export interface BridgeToolDefinition {
    name: string;
    label?: string;
    description?: string;
    parameters?: unknown;
}
export interface BridgeHostInfo {
    host?: string;
    platform?: string;
    officeVersion?: string;
    userAgent?: string;
    href: string;
    title?: string;
}
export interface BridgeSessionSnapshot {
    sessionId: string;
    instanceId: string;
    app: BridgeApp;
    appName?: string;
    appVersion?: string;
    metadataTag?: string;
    documentId: string;
    documentMetadata?: unknown;
    tools: BridgeToolDefinition[];
    host: BridgeHostInfo;
    connectedAt: number;
    updatedAt: number;
}
export interface BridgeError {
    message: string;
    code?: string;
    stack?: string;
}
export interface BridgeHelloMessage {
    type: "hello";
    role: "office-addin";
    protocolVersion: number;
    snapshot: BridgeSessionSnapshot;
}
export interface BridgeWelcomeMessage {
    type: "welcome";
    protocolVersion: number;
    serverTime: number;
}
export type BridgeInvokeMethod = "ping" | "get_session_snapshot" | "refresh_session" | "execute_tool" | "execute_unsafe_office_js" | "vfs_list" | "vfs_read" | "vfs_write" | "vfs_delete";
export interface BridgeInvokeMessage {
    type: "invoke";
    requestId: string;
    method: BridgeInvokeMethod;
    params?: unknown;
}
export interface BridgeResponseMessage {
    type: "response";
    requestId: string;
    ok: boolean;
    result?: unknown;
    error?: BridgeError;
}
export interface BridgeEventMessage {
    type: "event";
    event: string;
    ts: number;
    payload?: unknown;
}
export type BridgeWireMessage = BridgeHelloMessage | BridgeWelcomeMessage | BridgeInvokeMessage | BridgeResponseMessage | BridgeEventMessage;
export interface BridgeStoredEvent {
    id: string;
    event: string;
    ts: number;
    payload?: unknown;
}
export interface BridgeInvokeRequest {
    sessionId: string;
    method: BridgeInvokeMethod;
    params?: unknown;
    timeoutMs?: number;
}
export interface BridgeToolExecutionResult {
    toolCallId: string;
    toolName: string;
    isError: boolean;
    result: unknown;
    resultText: string;
    images: Array<{
        data: string;
        mimeType: string;
    }>;
    error?: string;
}
export interface BridgeUnsafeOfficeJsParams {
    code: string;
    explanation?: string;
}
export interface BridgeUnsafeOfficeJsResult {
    mode: "unsafe";
    app: string;
    result: unknown;
}
export interface BridgeVfsEntry {
    path: string;
    byteLength: number;
}
export interface BridgeVfsListParams {
    prefix?: string;
}
export interface BridgeVfsReadParams {
    path: string;
    encoding?: "text" | "base64";
}
export interface BridgeVfsReadResult {
    path: string;
    encoding: "text" | "base64";
    byteLength: number;
    text?: string;
    dataBase64?: string;
}
export interface BridgeVfsWriteParams {
    path: string;
    text?: string;
    dataBase64?: string;
}
export interface BridgeVfsDeleteParams {
    path: string;
}
export declare function uint8ArrayToBase64(data: Uint8Array): string;
export declare function createBridgeId(prefix?: string): string;
export declare function normalizeBridgeUrl(value: string | undefined, kind: "ws" | "http"): string;
export declare function serializeForJson(value: unknown): unknown;
export declare function toBridgeError(error: unknown): BridgeError;
export declare function isBridgeHelloMessage(value: unknown): value is BridgeHelloMessage;
export declare function isBridgeResponseMessage(value: unknown): value is BridgeResponseMessage;
export declare function isBridgeEventMessage(value: unknown): value is BridgeEventMessage;
export declare function isBridgeInvokeMessage(value: unknown): value is BridgeInvokeMessage;
export declare function extractToolText(result: unknown): string;
export declare function extractToolImages(result: unknown): Array<{
    data: string;
    mimeType: string;
}>;
export declare function extractToolError(result: unknown): string | undefined;
export declare function getDefaultRawExecutionTool(app: string): "eval_officejs" | "execute_office_js" | undefined;
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