import type { AcpMcpServer, ValidationError } from './types.js';
/** One entry of `harness_options.mcp_servers`, in `.mcp.json`'s own shape. */
export interface McpServerSpec {
    type?: string;
    command?: string;
    args?: string[];
    env?: Record<string, string>;
    url?: string;
    headers?: Record<string, string>;
}
/** Shape-check `harness_options.mcp_servers` against `.mcp.json`'s own rules. */
export declare function validateMcpServers(servers: unknown): ValidationError[];
/** `harness_options.mcp_servers` in ACP's `session/new` array shape. */
export declare function acpMcpServersFor(servers: Record<string, McpServerSpec> | undefined): AcpMcpServer[] | undefined;