from agents.mcp import MCPServerStreamableHttp


def build_mcp_server(url: str) -> MCPServerStreamableHttp:
    """Construct (but do not connect) the Meridian MCP connector.

    Caller is responsible for the lifecycle: either
        async with build_mcp_server(url) as server: ...
    or, for long-lived apps,
        server = build_mcp_server(url)
        await server.connect()
        ...
        await server.cleanup()
    """
    return MCPServerStreamableHttp(
        name="meridian-order-mcp",
        params={
            "url": url,
            "timeout": 15,
        },
        cache_tools_list=True,
        max_retry_attempts=3,
    )