import type { OAuthStore } from './store.js';
export type McpAuthFailureReason = 'missing_bearer' | 'invalid_mcp_jwt' | 'missing_contentful_token';
export declare class McpUnauthorizedError extends Error {
    readonly reason: McpAuthFailureReason;
    constructor(reason: McpAuthFailureReason);
}
export declare function isMcpUnauthorizedError(error: unknown): error is McpUnauthorizedError;
export declare function unauthorizedMcpResponse(): Response;
export declare function resolveContentfulTokenFromRequest(request: Request, store: OAuthStore): Promise<{
    sub: string;
    contentfulToken: string;
}>;
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