export declare const MCP_STARTUP_TIMEOUT_DEFAULT_SEC = 90;
export type ProviderFamily = 'grok' | 'claude' | 'opencode' | 'copilot';
/** Resolve the configured MCP startup timeout (seconds), falling back to 90. */
export declare function resolveMcpStartupTimeoutSec(settings?: {
    mcpStartupTimeoutSec?: number;
}): number;
/**
 * The MCP-startup-timeout env vars a provider family honors, for a given number
 * of seconds. Only returns vars NOT already present in `env` (so a user's own
 * export is never clobbered). Providers with no supported knob return `{}`.
 */
export declare function mcpStartupEnvForFamily(family: ProviderFamily, sec: number, env?: NodeJS.ProcessEnv): Record<string, string>;
/**
 * Set the provider family's MCP-startup-timeout env vars on `env`
 * (default process.env), only where unset. Returns the vars that were applied.
 */
export declare function applyMcpStartupEnv(family: ProviderFamily, settings?: {
    mcpStartupTimeoutSec?: number;
}, env?: NodeJS.ProcessEnv): Record<string, string>;