import type { TSchema } from "typebox";
export declare const SCHEMA_MISMATCH_PREFIX = "Invalid structured output: response does not match the decision schema.";
export declare const UNPARSEABLE_ARGUMENTS_PREFIX = "Invalid structured output: tool call arguments were not valid JSON.";
/** One line per failing path with the expected shape. Never includes any part of the rejected value. */
export declare function describeSchemaErrors(schema: TSchema, value: unknown): string[];
export declare function schemaMismatchMessage(lines: readonly string[]): string;
/** Parser messages quote the rejected input, so only a fixed category and a numeric position are surfaced. */
export declare function unparseableArgumentsMessage(argumentsError: string): string;
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