import { z } from "zod";
/**
 * MCP tool: check_messages
 *
 * Phase A v0.1 real-time A2A messaging — inbox-style polling for
 * messages. Real-time push comes via the SSE listener + hook (the
 * same path that surfaces transfer.created). This tool covers:
 *   - on-demand "what messages have I received" queries
 *   - thread retrieval ("show me thread X")
 *   - unread filtering ("what haven't I read yet")
 *   - reconnect recovery when SSE was disconnected
 */
declare const schema: z.ZodObject<{
    thread_id: z.ZodOptional<z.ZodString>;
    unread_only: z.ZodOptional<z.ZodBoolean>;
    since: z.ZodOptional<z.ZodString>;
    limit: z.ZodOptional<z.ZodNumber>;
}, "strip", z.ZodTypeAny, {
    limit?: number | undefined;
    thread_id?: string | undefined;
    unread_only?: boolean | undefined;
    since?: string | undefined;
}, {
    limit?: number | undefined;
    thread_id?: string | undefined;
    unread_only?: boolean | undefined;
    since?: string | undefined;
}>;
export type CheckMessagesInput = z.infer<typeof schema>;
export declare function createCheckMessagesTool(args: {
    apiBase: string;
    apiKey: string;
    agentId: string;
}): {
    name: "check_messages";
    description: string;
    schema: z.ZodObject<{
        thread_id: z.ZodOptional<z.ZodString>;
        unread_only: z.ZodOptional<z.ZodBoolean>;
        since: z.ZodOptional<z.ZodString>;
        limit: z.ZodOptional<z.ZodNumber>;
    }, "strip", z.ZodTypeAny, {
        limit?: number | undefined;
        thread_id?: string | undefined;
        unread_only?: boolean | undefined;
        since?: string | undefined;
    }, {
        limit?: number | undefined;
        thread_id?: string | undefined;
        unread_only?: boolean | undefined;
        since?: string | undefined;
    }>;
    handler: (input: CheckMessagesInput) => Promise<{
        isError: boolean;
        content: {
            type: "text";
            text: string;
        }[];
    } | {
        content: {
            type: "text";
            text: string;
        }[];
        isError?: undefined;
    }>;
};
export {};