export type DiagnosticSeverity = "error" | "warn";
export interface Diagnostic {
    code: string;
    severity: DiagnosticSeverity;
    message: string;
    location?: string;
}
export declare const DIAGNOSTIC_CODES: {
    readonly unmappedEndpoint: "TOOLCRAFT_OPENAPI_001";
    readonly duplicateMethodPath: "TOOLCRAFT_OPENAPI_002";
    readonly unknownPaginationScheme: "TOOLCRAFT_OPENAPI_003";
    readonly specDrift: "TOOLCRAFT_OPENAPI_004";
    readonly reservedMethodName: "TOOLCRAFT_OPENAPI_005";
    readonly invalidEdition: "TOOLCRAFT_OPENAPI_006";
    readonly invalidConfig: "TOOLCRAFT_OPENAPI_007";
};
export declare function createDiagnostic(args: Diagnostic): Diagnostic;
export declare function formatDiagnostic(diagnostic: Diagnostic): string;
export declare function formatDiagnostics(diagnostics: readonly Diagnostic[]): string;