export interface PendingPermission {
    sessionId: string;
    permissionId: string;
    tool: string;
    description: string;
    risk?: string;
    chatId: string;
    userId: string;
    createdAt: number;
    cardMessageId?: string;
    parentSessionId?: string;
    relatedSessionId?: string;
}
declare class PermissionHandler {
    private pendingByChat;
    private normalizeToolName;
    private removeExpired;
    isToolWhitelisted(toolName: unknown): boolean;
    enqueueForChat(chatId: string, data: {
        sessionId: string;
        permissionId: string;
        tool: string;
        description: string;
        risk?: string;
        userId?: string;
        cardMessageId?: string;
        parentSessionId?: string;
        relatedSessionId?: string;
    }): PendingPermission;
    peekForChat(chatId: string): PendingPermission | undefined;
    getQueueSizeForChat(chatId: string): number;
    resolveForChat(chatId: string, permissionId: string): PendingPermission | undefined;
    addPending(key: string, data: Omit<PendingPermission, 'createdAt'>): void;
    getPending(key: string): PendingPermission | undefined;
    removePending(key: string): PendingPermission | undefined;
    cleanupExpired(): void;
}
export declare const permissionHandler: PermissionHandler;
export {};
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