/**
 * PostgreSQL Core Tools - Error Helpers
 *
 * Shared helpers for formatting PostgreSQL errors into structured
 * responses. The actual error parsing logic lives in error-parser.ts.
 */
import type { ErrorResponse } from "../../../../types/error-types.js";
import type { ErrorContext } from "./error-parser.js";
export { parsePostgresError } from "./error-parser.js";
export type { ErrorContext } from "./error-parser.js";
/**
 * Wrapper around parsePostgresError that returns the structured error message
 * as a string instead of throwing. Use this in handler catch blocks where you
 * want to return `{ success: false, error: formatPostgresError(...) }`.
 *
 * parsePostgresError always throws — this function catches the throw and
 * extracts the message for structured error responses.
 */
export declare function formatPostgresError(error: unknown, context: ErrorContext): string;
/**
 * Canonical error formatter returning a rich ErrorResponse.
 * Part of the harmonized error handling standard across MCP projects.
 *
 * Combines:
 * - PostgresMcpError.toResponse() for typed errors
 * - parsePostgresError() for PG-specific error code mapping
 * - Zod validation path extraction
 * - Fallback for unknown errors
 */
export declare function formatHandlerErrorResponse(error: unknown, context: ErrorContext): ErrorResponse;
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