/**
 * Isomorphic Agent Key Utility
 *
 * Works in both browser and Node.js contexts:
 * - Browser: sends via postMessage to the parent window
 * - Node.js (scripts): sends via BUILDER_PARENT_MESSAGE stdout format,
 *   which the Electron host translates to postMessage
 */
export interface EnvVar {
    key: string;
    value: string;
}
/**
 * Send key/value settings to the host for scoped secret persistence.
 * Automatically detects environment (browser vs Node.js) and uses the right transport.
 */
declare function setVars(vars: EnvVar[]): void;
export declare const agentEnv: {
    /** Send key/value settings to the host for scoped secret persistence. */
    setVars: typeof setVars;
};
export {};
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