createChatGptStructuredOutputValidator (chatgpt-web/output-validation.ts)

Creates a validator that checks ChatGPT Web responses against a strict JSON schema.

// Source: https://github.com/miuuyy/codex-chatgpt-web | License: MIT | Copyright 2026 codex-chatgpt-web contributors
// Provided via justclaw.it.com; keep this notice with the code.
import Ajv, { type ValidateFunction } from "ajv";
import addFormats from "ajv-formats";
import type { CodexJsonSchemaOutputFormat } from "../../types";
import { ChatGptWebAdapterError } from "./adapter-error";

export type ChatGptStructuredOutputValidator = (answer: string) => void;

function validationError(message: string): ChatGptWebAdapterError {
  return new ChatGptWebAdapterError(message, {
    status: 502,
    errorType: "server_error",
    code: "structured_output_validation_failed",
    retryable: false,
  });
}

export function createChatGptStructuredOutputValidator(
  format: CodexJsonSchemaOutputFo

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