/**
 * AI Service Error Types
 *
 * Normalized error types for AI/OpenAI operations.
 */
/**
 * AI authentication error (invalid API key)
 */
export declare class AiAuthError extends Error {
    readonly originalError?: unknown | undefined;
    code: string;
    constructor(message?: string, originalError?: unknown | undefined);
}
/**
 * AI context length error (prompt too long)
 */
export declare class AiContextError extends Error {
    readonly maxTokens?: number | undefined;
    readonly requestedTokens?: number | undefined;
    readonly originalError?: unknown | undefined;
    code: string;
    constructor(message?: string, maxTokens?: number | undefined, requestedTokens?: number | undefined, originalError?: unknown | undefined);
}
/**
 * AI rate limit error (429)
 */
export declare class AiRateLimitError extends Error {
    readonly retryAfter?: number | undefined;
    readonly originalError?: unknown | undefined;
    code: string;
    constructor(message?: string, retryAfter?: number | undefined, originalError?: unknown | undefined);
}
/**
 * AI unknown error
 */
export declare class AiUnknownError extends Error {
    readonly originalError?: unknown | undefined;
    code: string;
    constructor(message?: string, originalError?: unknown | undefined);
}
/**
 * Create appropriate AI error from OpenAI API error
 */
export declare function createAiErrorFromOpenAIError(error: unknown, context: string): AiAuthError | AiContextError | AiRateLimitError | AiUnknownError;
export declare function isAiAuthError(error: unknown): error is AiAuthError;
export declare function isAiContextError(error: unknown): error is AiContextError;
export declare function isAiRateLimitError(error: unknown): error is AiRateLimitError;
export declare function isAiUnknownError(error: unknown): error is AiUnknownError;
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