/**
 * HTTP client for SPM Cloud Functions.
 *
 * Calls the same endpoints the Chrome extension uses, authenticated via
 * API key (X-SPM-API-Key header) or Bearer token.
 */
declare const ENDPOINTS: {
    readonly extensionAgentV3: "/extensionAgentV3";
    readonly extensionClarificationAgentV3: "/extensionClarificationAgentV3";
    readonly extensionGapEvaluatorV3: "/extensionGapEvaluatorV3";
    readonly extensionImproviseAgentV3: "/extensionImproviseAgentV3";
    readonly extensionReviewAgainAgentV3: "/extensionReviewAgainAgentV3";
    readonly classifyIntent: "/classifyIntent";
};
type EndpointName = keyof typeof ENDPOINTS;
export declare function setChannel(ch: string): void;
/**
 * Call an SPM Cloud Function endpoint.
 * Handles SSE stream parsing automatically.
 */
export declare function callEndpoint(endpoint: EndpointName, body: Record<string, unknown>, apiKey?: string): Promise<unknown>;
export declare class SpmApiError extends Error {
    readonly code: 'AUTH_REQUIRED' | 'RATE_LIMITED' | 'UPSTREAM_ERROR' | 'INVALID_INPUT' | 'SESSION_NOT_FOUND' | 'INVALID_PHASE';
    constructor(message: string, code: 'AUTH_REQUIRED' | 'RATE_LIMITED' | 'UPSTREAM_ERROR' | 'INVALID_INPUT' | 'SESSION_NOT_FOUND' | 'INVALID_PHASE');
}
export declare function callExpertAgent(body: Record<string, unknown>, apiKey?: string): Promise<unknown>;
export declare function callClarificationAgent(body: Record<string, unknown>, apiKey?: string): Promise<unknown>;
export declare function callGapEvaluator(body: Record<string, unknown>, apiKey?: string): Promise<unknown>;
export declare function callImproviser(body: Record<string, unknown>, apiKey?: string): Promise<unknown>;
export declare function callClassifyIntent(text: string, apiKey?: string): Promise<unknown>;
export {};