wehub-resource-sync
1271 lines
48 KiB
TypeScript
1271 lines
48 KiB
TypeScript
import { getCodexRequestDefaults } from "@/lib/providers/requestDefaults";
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import {
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getCodexModelScope,
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getCodexRateLimitKey,
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type CodexQuotaScope,
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} from "../config/codexQuotaScopes.ts";
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import { isFeatureFlagEnabled } from "@/shared/utils/featureFlags";
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import {
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BaseExecutor,
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mergeUpstreamExtraHeaders,
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setUserAgentHeader,
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type ExecutorLog,
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type ExecuteInput,
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type ProviderCredentials,
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} from "./base.ts";
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import {
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CODEX_CHAT_DEFAULT_INSTRUCTIONS,
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CODEX_DEFAULT_INSTRUCTIONS,
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} from "../config/codexInstructions.ts";
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import { PROVIDERS } from "../config/constants.ts";
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import {
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getCodexClientVersion,
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getCodexUserAgent,
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normalizeCodexSessionId,
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} from "../config/codexClient.ts";
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import {
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applyCodexClientIdentityHeaders,
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applyCodexClientMetadata,
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createCodexClientIdentity,
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type CodexClientIdentity,
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} from "../config/codexIdentity.ts";
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import { getAccessToken } from "../services/tokenRefresh.ts";
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import { sanitizeResponsesInputItems } from "../services/responsesInputSanitizer.ts";
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import { normalizeCodexVerbosity } from "../services/codexVerbosity.ts";
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import { getThinkingBudgetConfig, ThinkingMode } from "../services/thinkingBudget.ts";
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import { CORS_HEADERS } from "../utils/cors.ts";
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import { normalizeCodexResponsesInput } from "../utils/responsesInputNormalization.ts";
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import * as prl from "../utils/providerRequestLogging.ts";
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import { createRequire } from "module";
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// Quota parsing/scheduling extracted to a pure leaf; re-exported for external
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// importers (handlers/chatCore/codexQuota.ts + tests).
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export {
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type CodexQuotaSnapshot,
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parseCodexQuotaHeaders,
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getCodexResetTime,
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getCodexDualWindowCooldownMs,
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} from "./codex/quota.ts";
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import { isCodexFreePlan, normalizeCodexTools } from "./codex/tools.ts";
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// Re-exported for external importers (tests + provider services).
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export { isCodexFreePlan, normalizeCodexTools } from "./codex/tools.ts";
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// ─── wreq-js lazy loader ───────────────────────────────────────────────────
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// wreq-js is a Rust-native module that requires platform-specific .node binaries.
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// Loading it eagerly crashes the server when the binary is missing (pnpm, Docker
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// Alpine, unsupported architectures). We lazy-load with try/catch to gracefully
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// fall back to HTTP transport when the WebSocket transport is unavailable.
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const _wreqRequire = createRequire(import.meta.url);
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type WreqWebSocket = {
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send: (data: string) => void;
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close: (code?: number, reason?: string) => void;
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onmessage: ((event: { data: unknown }) => void) | null;
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onerror: ((event: { message?: string }) => void) | null;
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onclose: (() => void) | null;
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};
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type WebsocketFn = (url: string, opts?: Record<string, unknown>) => Promise<WreqWebSocket>;
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type ResponsesMessageInput = { role?: unknown; phase?: unknown; content?: unknown };
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let _websocketFn: WebsocketFn | null = null;
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let _wreqChecked = false;
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let _websocketOverride: WebsocketFn | null | undefined;
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function getCodexWebSocketTransport(): WebsocketFn | null {
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if (_websocketOverride !== undefined) return _websocketOverride;
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if (_wreqChecked) return _websocketFn;
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_wreqChecked = true;
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try {
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const mod = _wreqRequire("wreq-js") as { websocket?: WebsocketFn };
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_websocketFn = typeof mod.websocket === "function" ? mod.websocket : null;
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} catch {
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console.warn("[codex] wreq-js import failed, websocket disabled");
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_websocketFn = null;
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}
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return _websocketFn;
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}
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export function __setCodexWebSocketTransportForTesting(
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websocket: WebsocketFn | null | undefined
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): void {
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_websocketOverride = websocket;
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}
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function codexWebSocketUnavailableResponse(): Response {
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return new Response(
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JSON.stringify({
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error: {
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code: "wreq_unavailable",
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message:
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"Codex WebSocket transport unavailable: wreq-js native module is missing for this platform",
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},
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}),
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{
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status: 503,
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headers: {
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"Content-Type": "application/json",
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...CORS_HEADERS,
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},
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}
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);
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}
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// ─── T09: Codex vs Spark Scope-Aware Rate Limiting ────────────────────────
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// Codex has two independent quota pools: "codex" (standard) and "spark" (premium).
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// Exhausting one should NOT block requests to the other.
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// Ref: sub2api PR #1129 (feat(openai): split codex spark rate limiting from codex)
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export { getCodexModelScope, getCodexRateLimitKey, type CodexQuotaScope };
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// Ordered list of effort levels from lowest to highest
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const EFFORT_ORDER = ["none", "low", "medium", "high", "xhigh"] as const;
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type EffortLevel = (typeof EFFORT_ORDER)[number];
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const CODEX_FAST_WIRE_VALUE = "priority";
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const CODEX_RESPONSES_WS_URL = "wss://chatgpt.com/backend-api/codex/responses";
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function splitCodexReasoningSuffix(model: unknown): {
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baseModel: string;
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effort: EffortLevel | null;
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} {
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const modelId = typeof model === "string" ? model : "";
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for (const level of EFFORT_ORDER) {
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if (modelId.endsWith(`-${level}`)) {
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return {
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baseModel: modelId.slice(0, -`-${level}`.length),
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effort: level,
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};
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}
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}
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return { baseModel: modelId, effort: null };
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}
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export function getCodexUpstreamModel(model: unknown): string {
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return splitCodexReasoningSuffix(model).baseModel;
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}
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/**
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* Convert role=system messages in `input` to role=developer.
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*
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* GPT-5 models support the `developer` role in input, but reject `system`.
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* This keeps the content inside
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* the `input` array where it benefits from OpenAI's automatic prompt caching.
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*
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* OpenAI's prompt caching matches on the serialized prefix of the `input` array
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* (+ tools). The `instructions` field is NOT included in the cache key for
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* GPT-5 models. Moving system prompts from `input` to `instructions` therefore
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* removes them from the cacheable prefix, resulting in 0% cache hit rates.
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*
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* Ref: https://community.openai.com/t/caching-is-borked-for-gpt-5-models/1359574
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* Ref: https://community.openai.com/t/no-caching-with-model-responses/1338627
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*/
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function convertSystemToDeveloperRole(body: Record<string, unknown>): void {
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if (!Array.isArray(body.input)) return;
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for (const itemValue of body.input) {
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if (!itemValue || typeof itemValue !== "object" || Array.isArray(itemValue)) {
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continue;
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}
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const item = itemValue as Record<string, unknown>;
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const role = typeof item.role === "string" ? item.role : "";
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const type = typeof item.type === "string" ? item.type : "";
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const isSystemMessage = role === "system" && (!type || type === "message");
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if (isSystemMessage) {
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item.role = "developer";
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}
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}
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}
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/**
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* Strip server-generated item IDs from the input array.
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*
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* The Codex /codex/responses endpoint does not persist response items even when
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* store=true is sent. When proxy clients (e.g. OpenClaw) include response items
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* from previous turns in the input array, those items carry server-assigned IDs
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* (prefixed with "rs_", "fc_", "resp_", "msg_"). The Codex backend tries to
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* validate these IDs against its persistence store and returns 404 when the items
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* are not found (because store was effectively false).
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*
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* This function:
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* 1. Removes bare string references ("rs_abc123") from the input array
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* 2. Removes object items with type "item_reference" (explicit stored-item refs)
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* 3. Strips the "id" field from any object in input whose id matches a
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* server-generated prefix (rs_, fc_, resp_, msg_) — so the content is
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* preserved but the backend won't try to look it up
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*/
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export function stripStoredItemReferences(body: Record<string, unknown>): void {
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if (Array.isArray(body.input) && body.input.length === 0) {
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body.input = [
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{
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type: "message",
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role: "user",
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content: [{ type: "input_text", text: "continue" }],
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},
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];
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}
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if (!Array.isArray(body.input)) return;
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const SERVER_ID_PATTERN = /^(rs|fc|resp|msg)_/;
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let strippedCount = 0;
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body.input = body.input.filter((item) => {
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// Bare string references: "rs_abc123", "resp_abc123"
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if (typeof item === "string" && SERVER_ID_PATTERN.test(item)) {
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strippedCount++;
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return false;
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}
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// Object references: { type: "item_reference", id: "rs_..." }
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if (
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item &&
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typeof item === "object" &&
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!Array.isArray(item) &&
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(item as Record<string, unknown>).type === "item_reference"
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) {
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strippedCount++;
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return false;
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}
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// Reasoning blobs (encrypted_content) are unusable with store=false since
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// previous_response_id is deleted — strip them to avoid wasting context
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// tokens (O(n^2) growth across agentic turns).
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if (
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item &&
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typeof item === "object" &&
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!Array.isArray(item) &&
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(item as Record<string, unknown>).type === "reasoning"
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) {
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strippedCount++;
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return false;
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}
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// Object items with server-generated IDs: strip the id field but keep the item.
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// e.g. { id: "rs_...", type: "reasoning", summary: [...] } → keep content, remove id
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// e.g. { id: "fc_...", type: "function_call", ... } → keep content, remove id
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if (item && typeof item === "object" && !Array.isArray(item)) {
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const record = item as Record<string, unknown>;
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if (typeof record.id === "string" && SERVER_ID_PATTERN.test(record.id)) {
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delete record.id;
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strippedCount++;
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}
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}
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return true;
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});
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if (strippedCount > 0) {
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console.debug(
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`[Codex] stripStoredItemReferences: sanitized ${strippedCount} server-generated ID(s) from input`
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);
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}
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}
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function repairMissingCodexFunctionCallOutputs(body: Record<string, unknown>): void {
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if (!Array.isArray(body.input)) return;
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const existingOutputIds = new Set<string>();
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for (const item of body.input) {
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if (!item || typeof item !== "object" || Array.isArray(item)) continue;
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const record = item as Record<string, unknown>;
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if (record.type !== "function_call_output") continue;
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if (typeof record.call_id === "string" && record.call_id.trim()) {
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existingOutputIds.add(record.call_id.trim());
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}
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}
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const repaired: unknown[] = [];
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let insertedCount = 0;
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for (const item of body.input) {
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repaired.push(item);
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if (!item || typeof item !== "object" || Array.isArray(item)) continue;
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const record = item as Record<string, unknown>;
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if (record.type !== "function_call") continue;
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const callId = typeof record.call_id === "string" ? record.call_id.trim() : "";
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if (!callId || existingOutputIds.has(callId)) continue;
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repaired.push({
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type: "function_call_output",
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call_id: callId,
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output: "",
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});
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existingOutputIds.add(callId);
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insertedCount++;
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}
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if (insertedCount > 0) {
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body.input = repaired;
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console.debug(
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`[Codex] repairMissingCodexFunctionCallOutputs: inserted ${insertedCount} empty function_call_output item(s)`
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);
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}
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}
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function getResponsesSubpath(endpointPath: unknown): string | null {
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let normalizedEndpoint = String(endpointPath || "");
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while (normalizedEndpoint.endsWith("/") && normalizedEndpoint.length > 0) {
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normalizedEndpoint = normalizedEndpoint.slice(0, -1);
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}
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const lower = normalizedEndpoint.toLowerCase();
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if (lower === "responses" || lower.endsWith("/responses")) {
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return "";
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}
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const responsesSlash = "/responses/";
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const idx = lower.lastIndexOf(responsesSlash);
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if (idx !== -1) {
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return normalizedEndpoint.slice(idx + "/responses".length);
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}
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if (lower.startsWith("responses/")) {
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return normalizedEndpoint.slice("responses".length);
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}
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return null;
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}
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export function isCompactResponsesEndpoint(endpointPath: unknown): boolean {
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return getResponsesSubpath(endpointPath)?.toLowerCase() === "/compact";
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}
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function normalizeServiceTierValue(value: unknown): string | undefined {
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if (typeof value !== "string") return undefined;
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const normalized = value.trim().toLowerCase();
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if (!normalized) return undefined;
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if (normalized === "fast") return CODEX_FAST_WIRE_VALUE;
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return normalized;
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}
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/**
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* Maximum reasoning effort allowed per Codex model.
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* Models not listed here default to "xhigh" (unrestricted).
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* Update this table when Codex releases new models with different caps.
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*/
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const MAX_EFFORT_BY_MODEL: Record<string, EffortLevel> = {
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"gpt-5.3-codex": "xhigh",
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"gpt-5.1-codex-max": "xhigh",
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"gpt-5-mini": "high",
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"gpt-5.1-mini": "high",
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"gpt-4.1-mini": "high",
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};
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/**
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* Clamp reasoning effort to the model's maximum allowed level.
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* Returns the original value if within limits, or the cap if it exceeds it.
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*/
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function clampEffort(model: string, requested: string): string {
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const max: EffortLevel = MAX_EFFORT_BY_MODEL[model] ?? "xhigh";
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const reqIdx = EFFORT_ORDER.indexOf(requested as EffortLevel);
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const maxIdx = EFFORT_ORDER.indexOf(max);
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if (reqIdx > maxIdx) {
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console.debug(`[Codex] clampEffort: "${requested}" → "${max}" (model: ${model})`);
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return max;
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}
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return requested;
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}
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const CODEX_REASONING_ENCRYPTED_CONTENT_INCLUDE = "reasoning.encrypted_content";
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const CODEX_DEFAULT_REASONING_SUMMARY = "auto";
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function normalizeEffortValue(value: unknown): string | undefined {
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if (typeof value !== "string") return undefined;
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const normalized = value.trim().toLowerCase();
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if (normalized === "max") return "xhigh";
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return normalized || undefined;
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}
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function ensureCodexReasoningSummary(body: Record<string, unknown>): void {
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const reasoning =
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body.reasoning && typeof body.reasoning === "object" && !Array.isArray(body.reasoning)
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? (body.reasoning as Record<string, unknown>)
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: null;
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if (!reasoning || normalizeEffortValue(reasoning.effort) === "none") return;
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if (!("summary" in reasoning)) {
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reasoning.summary = CODEX_DEFAULT_REASONING_SUMMARY;
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}
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if (!Array.isArray(body.include)) {
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body.include = [CODEX_REASONING_ENCRYPTED_CONTENT_INCLUDE];
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return;
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}
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if (!body.include.includes(CODEX_REASONING_ENCRYPTED_CONTENT_INCLUDE)) {
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body.include = [...body.include, CODEX_REASONING_ENCRYPTED_CONTENT_INCLUDE];
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}
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}
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function consumeResponsesStoreMarker(body: Record<string, unknown>): unknown {
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const marker = body._omnirouteResponsesStore;
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delete body._omnirouteResponsesStore;
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return marker;
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}
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/**
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* Global Codex WebSocket kill-switch (feature flag OMNIROUTE_CODEX_WS_ENABLED,
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* default ON). Fail-open: if the flag store is unreachable (e.g. DB not yet
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* ready), treat as enabled so codex routing is never broken by the read itself.
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*/
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function isCodexWsGloballyEnabled(): boolean {
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try {
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return isFeatureFlagEnabled("OMNIROUTE_CODEX_WS_ENABLED");
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} catch {
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return true;
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}
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}
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export function isCodexResponsesWebSocketRequired(_model: string, credentials: unknown): boolean {
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// Global kill-switch (default ON). When disabled, Codex never uses the WS
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// transport — even per-connection codexTransport=websocket falls back to the
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// HTTP Responses SSE endpoint.
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if (!isCodexWsGloballyEnabled()) return false;
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// OmniRoute is an HTTP→SSE gateway — WebSocket transport is unnecessary and
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// breaks when upstream requests go through an HTTP proxy (403 on WS upgrade).
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// Default to the standard HTTP Responses SSE endpoint for all Codex models.
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// Users who need WebSocket can opt in via the provider codexTransport setting.
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const providerSpecificData =
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credentials && typeof credentials === "object"
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? (credentials as { providerSpecificData?: Record<string, unknown> }).providerSpecificData
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: null;
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return !!(providerSpecificData?.codexTransport === "websocket" && getCodexWebSocketTransport());
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}
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|
function toStatusCode(value: unknown): number | null {
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if (typeof value === "number" && Number.isInteger(value) && value >= 400 && value <= 599) {
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return value;
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}
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if (typeof value === "string" && /^\d{3}$/.test(value.trim())) {
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const parsed = Number(value.trim());
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return parsed >= 400 && parsed <= 599 ? parsed : null;
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}
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return null;
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}
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function looksLikeQuotaOrRateLimit(code: string, type: string, message: string): boolean {
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const haystack = `${code} ${type} ${message}`.toLowerCase();
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return (
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haystack.includes("usage_limit_reached") ||
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haystack.includes("rate_limit") ||
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haystack.includes("rate limit") ||
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haystack.includes("quota") ||
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haystack.includes("too many requests") ||
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haystack.includes("limit has been reached") ||
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haystack.includes("limit reached")
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);
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}
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function toCodexResponseFailedEvent(parsed: Record<string, unknown>): Record<string, unknown> {
|
|
const response =
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parsed.response && typeof parsed.response === "object" && !Array.isArray(parsed.response)
|
|
? (parsed.response as Record<string, unknown>)
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|
: null;
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|
const upstreamError =
|
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response?.error && typeof response.error === "object" && !Array.isArray(response.error)
|
|
? (response.error as Record<string, unknown>)
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|
: parsed.error && typeof parsed.error === "object" && !Array.isArray(parsed.error)
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? (parsed.error as Record<string, unknown>)
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|
: parsed;
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|
const code =
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typeof upstreamError.code === "string"
|
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? upstreamError.code
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: typeof upstreamError.type === "string"
|
|
? upstreamError.type
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|
: "upstream_error";
|
|
const type = typeof upstreamError.type === "string" ? upstreamError.type : "";
|
|
const message =
|
|
typeof upstreamError.message === "string" && upstreamError.message.trim()
|
|
? upstreamError.message
|
|
: "Codex upstream error";
|
|
const error: Record<string, unknown> = { code, message };
|
|
const explicitStatus =
|
|
toStatusCode(parsed.status_code) ??
|
|
toStatusCode(parsed.status) ??
|
|
toStatusCode(response?.status_code) ??
|
|
toStatusCode(response?.status) ??
|
|
toStatusCode(upstreamError.status_code) ??
|
|
toStatusCode(upstreamError.status);
|
|
const statusCode =
|
|
explicitStatus ?? (looksLikeQuotaOrRateLimit(code, type, message) ? 429 : null);
|
|
|
|
if (type) error.type = type;
|
|
if (statusCode !== null) error.status_code = statusCode;
|
|
|
|
return {
|
|
type: "response.failed",
|
|
response: {
|
|
id: typeof response?.id === "string" ? response.id : null,
|
|
status: "failed",
|
|
error,
|
|
},
|
|
};
|
|
}
|
|
|
|
// Env-gated kill-switch: drop ALL non-standard `codex.*` SSE events (notably
|
|
// `codex.rate_limits`) from the Responses stream. These events are NOT part of
|
|
// the OpenAI Responses API — strict clients (e.g. the OpenAI SDK's
|
|
// `responses.stream()`) choke on the unknown event type / empty data field and
|
|
// tear the stream down, surfacing as "Invalid state: Controller is already
|
|
// closed". Opt-in so the default still forwards them for clients that want them.
|
|
function codexDropNonstandardEvents(): boolean {
|
|
const v = process.env.OMNIROUTE_CODEX_DROP_NONSTANDARD_EVENTS;
|
|
return v === "true" || v === "1" || v === "yes";
|
|
}
|
|
|
|
// SSE block filter for the HTTP Responses path (super.execute). The HTTP
|
|
// transport forwards the upstream stream verbatim — including the non-standard
|
|
// `event: codex.rate_limits` frame (no data line) — so the WS-only filter in
|
|
// encodeResponseSseEvent never runs for it. When the kill-switch is on, strip
|
|
// every `codex.*` event block from the byte stream before it reaches the client.
|
|
// Exported for unit testing (#4715). Strips `codex.*` SSE event blocks from a
|
|
// streaming Response when the OMNIROUTE_CODEX_DROP_NONSTANDARD_EVENTS kill-switch is on.
|
|
export function filterNonstandardCodexSse(response: Response): Response {
|
|
const contentType = response.headers.get("content-type") || "";
|
|
if (!response.body || !contentType.includes("text/event-stream")) {
|
|
return response;
|
|
}
|
|
const decoder = new TextDecoder();
|
|
const encoder = new TextEncoder();
|
|
let buffer = "";
|
|
const dropBlock = (block: string): boolean => {
|
|
const match = /^event:\s*(.+)$/m.exec(block);
|
|
return !!match && match[1].trim().startsWith("codex.");
|
|
};
|
|
const transform = new TransformStream<Uint8Array, Uint8Array>({
|
|
transform(chunk, controller) {
|
|
buffer += decoder.decode(chunk, { stream: true });
|
|
let sep: number;
|
|
while ((sep = buffer.indexOf("\n\n")) !== -1) {
|
|
const block = buffer.slice(0, sep + 2);
|
|
buffer = buffer.slice(sep + 2);
|
|
if (!dropBlock(block)) controller.enqueue(encoder.encode(block));
|
|
}
|
|
},
|
|
flush(controller) {
|
|
if (buffer && !dropBlock(buffer)) controller.enqueue(encoder.encode(buffer));
|
|
},
|
|
});
|
|
return new Response(response.body.pipeThrough(transform), {
|
|
status: response.status,
|
|
statusText: response.statusText,
|
|
headers: response.headers,
|
|
});
|
|
}
|
|
|
|
export function encodeResponseSseEvent(raw: string): { sse: string; terminal: boolean } {
|
|
let eventType = "message";
|
|
let payload = raw;
|
|
let terminal = false;
|
|
|
|
try {
|
|
const parsed = JSON.parse(raw);
|
|
if (parsed && typeof parsed.type === "string" && parsed.type.trim()) {
|
|
eventType = parsed.type.trim();
|
|
if (eventType === "error" || eventType === "response.failed") {
|
|
const failed = toCodexResponseFailedEvent(parsed as Record<string, unknown>);
|
|
payload = JSON.stringify(failed);
|
|
eventType = "response.failed";
|
|
}
|
|
terminal = eventType === "response.completed" || eventType === "response.failed";
|
|
}
|
|
} catch {
|
|
console.warn("[codex] SSE payload parse failed, using raw payload");
|
|
// Keep message as the generic SSE event for non-JSON upstream payloads.
|
|
}
|
|
|
|
// Env-gated: drop non-standard `codex.*` events (notably `codex.rate_limits`)
|
|
// before they reach the client. They are NOT part of the OpenAI Responses API
|
|
// and break strict consumers: the OpenAI SDK's responses.stream() chokes on
|
|
// the unknown event type / empty data and tears the stream down, surfacing as
|
|
// "Invalid state: Controller is already closed". The earlier empty-payload
|
|
// check below never caught codex.rate_limits — over WS the frame carries a
|
|
// non-empty JSON payload (`{"type":"codex.rate_limits", ...}`), so
|
|
// `!payload.trim()` is false. Match by event type instead. Opt-in via
|
|
// OMNIROUTE_CODEX_DROP_NONSTANDARD_EVENTS (the HTTP transport is handled
|
|
// separately by filterNonstandardCodexSse, since super.execute forwards the
|
|
// upstream stream verbatim and never runs this function).
|
|
if (eventType.startsWith("codex.") && codexDropNonstandardEvents()) {
|
|
return { sse: "", terminal };
|
|
}
|
|
|
|
// Drop frames whose raw payload is empty (defensive; non-JSON / blank upstream
|
|
// chunks). Frames that carry a payload are preserved.
|
|
if (!payload.trim()) {
|
|
return { sse: "", terminal };
|
|
}
|
|
|
|
return { sse: `event: ${eventType}\ndata: ${payload}\n\n`, terminal };
|
|
}
|
|
|
|
function toWebSocketUrl(url: string): string {
|
|
// Symmetric scheme map that PRESERVES the caller's transport choice by
|
|
// rewriting only the leading scheme: https→secure WS (production, e.g.
|
|
// chatgpt.com), http→plain WS (local/dev only). Not a hardcoded cleartext
|
|
// endpoint — the production codex upstream is the secure CODEX_RESPONSES_WS_URL.
|
|
if (/^wss?:\/\//.test(url)) return url;
|
|
if (url.startsWith("https:")) return url.replace(/^https:/, "wss:");
|
|
if (url.startsWith("http:")) return url.replace(/^http:/, "ws:");
|
|
return CODEX_RESPONSES_WS_URL;
|
|
}
|
|
|
|
function normalizeCodexWsHeaders(headers: Record<string, string>): Record<string, string> {
|
|
const result: Record<string, string> = {};
|
|
for (const [key, value] of Object.entries(headers)) {
|
|
const lower = key.toLowerCase();
|
|
if (
|
|
lower === "host" ||
|
|
lower === "connection" ||
|
|
lower === "upgrade" ||
|
|
lower === "sec-websocket-key" ||
|
|
lower === "sec-websocket-version" ||
|
|
lower === "sec-websocket-extensions"
|
|
) {
|
|
continue;
|
|
}
|
|
result[key] = value;
|
|
}
|
|
result.Origin = "https://chatgpt.com";
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Codex Executor - handles OpenAI Codex API (Responses API format)
|
|
* Automatically injects default instructions if missing.
|
|
* IMPORTANT: Includes chatgpt-account-id header for workspace binding.
|
|
*/
|
|
export class CodexExecutor extends BaseExecutor {
|
|
constructor() {
|
|
super("codex", PROVIDERS.codex);
|
|
}
|
|
|
|
async execute(input: ExecuteInput) {
|
|
const sessionId = this.getPromptCacheSessionId(
|
|
input.credentials,
|
|
input.body as Record<string, unknown> | null
|
|
);
|
|
const identity = createCodexClientIdentity(
|
|
sessionId,
|
|
input.credentials?.providerSpecificData ?? null
|
|
);
|
|
const credentials = identity
|
|
? {
|
|
...input.credentials,
|
|
providerSpecificData: {
|
|
...(input.credentials?.providerSpecificData || {}),
|
|
codexClientIdentity: identity,
|
|
},
|
|
}
|
|
: input.credentials;
|
|
const nextInput = { ...input, credentials };
|
|
|
|
if (!isCodexResponsesWebSocketRequired(nextInput.model, nextInput.credentials)) {
|
|
const httpResult = await super.execute(nextInput);
|
|
if (codexDropNonstandardEvents()) {
|
|
const resp = (httpResult as { response?: Response }).response;
|
|
if (resp?.body) {
|
|
(httpResult as { response: Response }).response = filterNonstandardCodexSse(resp);
|
|
}
|
|
}
|
|
return httpResult;
|
|
}
|
|
|
|
const url = CODEX_RESPONSES_WS_URL;
|
|
const headers = normalizeCodexWsHeaders(this.buildHeaders(nextInput.credentials, true));
|
|
mergeUpstreamExtraHeaders(headers, nextInput.upstreamExtraHeaders);
|
|
|
|
const transformedBody = (await this.transformRequest(
|
|
nextInput.model,
|
|
nextInput.body,
|
|
true,
|
|
nextInput.credentials
|
|
)) as Record<string, unknown>;
|
|
transformedBody.model = getCodexUpstreamModel(transformedBody.model || nextInput.model);
|
|
delete transformedBody.stream;
|
|
delete transformedBody.stream_options;
|
|
|
|
const bodyString = JSON.stringify({
|
|
type: "response.create",
|
|
...transformedBody,
|
|
});
|
|
|
|
const websocketFn = getCodexWebSocketTransport();
|
|
if (!websocketFn) {
|
|
return {
|
|
response: codexWebSocketUnavailableResponse(),
|
|
url,
|
|
headers,
|
|
transformedBody,
|
|
};
|
|
}
|
|
|
|
const encoder = new TextEncoder();
|
|
let closed = false;
|
|
let ws: WreqWebSocket | null = null;
|
|
let streamController: ReadableStreamDefaultController<Uint8Array> | null = null;
|
|
|
|
const closeUpstream = (reason: string) => {
|
|
try {
|
|
ws?.close(1000, reason);
|
|
} catch {
|
|
console.warn("[codex] closeUpstream: socket close race ignored");
|
|
// ignore close races
|
|
}
|
|
};
|
|
|
|
let abortHandler: (() => void) | null = null;
|
|
const removeAbortListener = () => {
|
|
if (!abortHandler) return;
|
|
nextInput.signal?.removeEventListener("abort", abortHandler);
|
|
abortHandler = null;
|
|
};
|
|
|
|
const finishStream = ({
|
|
reason,
|
|
emitDone = true,
|
|
closeController = true,
|
|
closeSocket = true,
|
|
}: {
|
|
reason: string;
|
|
emitDone?: boolean;
|
|
closeController?: boolean;
|
|
closeSocket?: boolean;
|
|
}) => {
|
|
if (closed) return;
|
|
closed = true;
|
|
removeAbortListener();
|
|
if (closeSocket) closeUpstream(reason);
|
|
|
|
const controller = streamController;
|
|
if (!controller || !closeController) return;
|
|
if (emitDone) {
|
|
try {
|
|
controller.enqueue(encoder.encode("data: [DONE]\n\n"));
|
|
} catch {
|
|
console.warn("[codex] finishStream: failed to enqueue [DONE]");
|
|
// The downstream may already have gone away.
|
|
}
|
|
}
|
|
try {
|
|
controller.close();
|
|
} catch {
|
|
console.warn("[codex] finishStream: failed to close controller");
|
|
// The controller may already be closed.
|
|
}
|
|
};
|
|
|
|
const failController = (code: string, message: string) => {
|
|
if (closed) return;
|
|
const controller = streamController;
|
|
const payload = JSON.stringify({
|
|
type: "response.failed",
|
|
response: {
|
|
id: null,
|
|
status: "failed",
|
|
error: { code, message },
|
|
},
|
|
});
|
|
try {
|
|
controller?.enqueue(encoder.encode(`event: response.failed\ndata: ${payload}\n\n`));
|
|
} catch {
|
|
// Downstream closed before the failure could be delivered.
|
|
}
|
|
finishStream({ reason: "upstream_failed" });
|
|
};
|
|
|
|
const stream = new ReadableStream<Uint8Array>({
|
|
async start(controller) {
|
|
streamController = controller;
|
|
abortHandler = () => {
|
|
finishStream({ reason: "client_aborted" });
|
|
};
|
|
nextInput.signal?.addEventListener("abort", abortHandler, { once: true });
|
|
|
|
try {
|
|
ws = await websocketFn(toWebSocketUrl(url), {
|
|
browser: "chrome_142",
|
|
os: "windows",
|
|
headers,
|
|
});
|
|
if (closed) return;
|
|
if (nextInput.signal?.aborted) {
|
|
finishStream({ reason: "client_aborted" });
|
|
return;
|
|
}
|
|
ws.onmessage = (event) => {
|
|
if (closed) return;
|
|
const raw =
|
|
typeof event.data === "string"
|
|
? event.data
|
|
: Buffer.from(event.data as Buffer).toString("utf8");
|
|
const sseEvent = encodeResponseSseEvent(raw);
|
|
if (closed) return;
|
|
// Filtered events (codex.* / empty payload) return an empty `sse` —
|
|
// skip them so no empty frame reaches the client.
|
|
if (sseEvent.sse) {
|
|
try {
|
|
controller.enqueue(encoder.encode(sseEvent.sse));
|
|
} catch {
|
|
finishStream({
|
|
reason: "downstream_closed",
|
|
emitDone: false,
|
|
closeController: false,
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
if (sseEvent.terminal) {
|
|
finishStream({ reason: "terminal_event" });
|
|
}
|
|
};
|
|
ws.onerror = (event) => {
|
|
failController(
|
|
"upstream_websocket_error",
|
|
event.message || "Codex upstream WebSocket error"
|
|
);
|
|
};
|
|
ws.onclose = () => {
|
|
finishStream({ reason: "upstream_closed", closeSocket: false });
|
|
};
|
|
if (!closed) {
|
|
await prl.captureCurrentProviderBody(url, headers, bodyString, nextInput.log);
|
|
ws.send(bodyString);
|
|
}
|
|
} catch (error) {
|
|
failController(
|
|
"upstream_websocket_connect_failed",
|
|
error instanceof Error ? error.message : String(error)
|
|
);
|
|
}
|
|
},
|
|
cancel() {
|
|
finishStream({ reason: "client_cancelled", emitDone: false, closeController: false });
|
|
},
|
|
});
|
|
|
|
return {
|
|
response: new Response(stream, {
|
|
status: 200,
|
|
headers: {
|
|
"Content-Type": "text/event-stream",
|
|
"Cache-Control": "no-cache",
|
|
Connection: "keep-alive",
|
|
},
|
|
}),
|
|
url,
|
|
headers,
|
|
transformedBody,
|
|
};
|
|
}
|
|
|
|
buildUrl(
|
|
model: string,
|
|
stream: boolean,
|
|
urlIndex = 0,
|
|
credentials: ProviderCredentials | null = null
|
|
) {
|
|
void model;
|
|
void stream;
|
|
void urlIndex;
|
|
|
|
const responsesSubpath = getResponsesSubpath(credentials?.requestEndpointPath);
|
|
if (responsesSubpath !== null) {
|
|
const baseUrl = String(this.config.baseUrl || "").replace(/\/$/, "");
|
|
if (baseUrl.endsWith("/responses")) {
|
|
return `${baseUrl}${responsesSubpath}`;
|
|
}
|
|
return `${baseUrl}/responses${responsesSubpath}`;
|
|
}
|
|
|
|
return super.buildUrl(model, stream, urlIndex, credentials);
|
|
}
|
|
|
|
/**
|
|
* Codex Responses endpoint is SSE-first.
|
|
* Always request event-stream from upstream, even when client requested stream=false.
|
|
* Includes chatgpt-account-id header for strict workspace binding.
|
|
*/
|
|
buildHeaders(credentials: ProviderCredentials, stream = true) {
|
|
const isCompactRequest = isCompactResponsesEndpoint(credentials?.requestEndpointPath);
|
|
const headers = super.buildHeaders(credentials, isCompactRequest ? false : true);
|
|
headers.Version = getCodexClientVersion();
|
|
setUserAgentHeader(headers, getCodexUserAgent());
|
|
|
|
// Add workspace binding header if workspaceId is persisted
|
|
const workspaceId = credentials?.providerSpecificData?.workspaceId;
|
|
if (typeof workspaceId === "string" && workspaceId) {
|
|
headers["chatgpt-account-id"] = workspaceId;
|
|
}
|
|
const clientIdentity = credentials?.providerSpecificData?.codexClientIdentity as
|
|
CodexClientIdentity | null | undefined;
|
|
|
|
// Originator header — identifies the client type to the Codex backend.
|
|
// Ref: openai/codex login/src/auth/default_client.rs DEFAULT_ORIGINATOR = "codex_cli_rs"
|
|
headers["originator"] = "codex_cli_rs";
|
|
|
|
// session_id header — enables prompt cache affinity on the Codex backend.
|
|
// The official Codex client sets this to conversation_id (a stable UUID per session).
|
|
// Ref: openai/codex codex-api/src/requests/headers.rs build_conversation_headers()
|
|
const cacheSessionId = this.getPromptCacheSessionId(credentials, null);
|
|
if (cacheSessionId) {
|
|
headers["session_id"] = cacheSessionId;
|
|
}
|
|
applyCodexClientIdentityHeaders(headers, clientIdentity);
|
|
|
|
return headers;
|
|
}
|
|
|
|
/**
|
|
* Derive a stable session ID for prompt cache affinity.
|
|
* Priority: per-conversation session_id/conversation_id from request body → workspaceId.
|
|
* The official Codex client uses conversation_id (a unique UUID per session), NOT
|
|
* the account-wide workspaceId. Using workspaceId caps cache hit-rate at ~49%
|
|
* because all conversations share the same cache partition. (#1643)
|
|
* Ref: openai/codex core/src/client.rs line 853
|
|
*/
|
|
private getPromptCacheSessionId(
|
|
credentials: ProviderCredentials | null | undefined,
|
|
body: Record<string, unknown> | null
|
|
): string | null {
|
|
const promptCacheKey = normalizeCodexSessionId(body?.prompt_cache_key);
|
|
if (promptCacheKey) return promptCacheKey;
|
|
|
|
// Prefer per-session identifiers from the client request body
|
|
const sessionId = body?.session_id ?? body?.conversation_id;
|
|
const normalizedSessionId = normalizeCodexSessionId(sessionId);
|
|
if (normalizedSessionId) {
|
|
return normalizedSessionId;
|
|
}
|
|
// Fall back to workspaceId (account-wide) — better than nothing
|
|
return normalizeCodexSessionId(credentials?.providerSpecificData?.workspaceId) || null;
|
|
}
|
|
|
|
/**
|
|
* Refresh Codex OAuth credentials when a 401 is received.
|
|
* OpenAI uses rotating (one-time-use) refresh tokens — if the token was already
|
|
* consumed by a concurrent refresh, this returns null to signal re-auth is needed.
|
|
*
|
|
* Fixes #251: After a server restart/upgrade, previously cached access tokens may
|
|
* have expired or become invalid. chatCore.ts calls this on 401; previously the
|
|
* base class returned null causing the request to fail instead of refreshing.
|
|
*/
|
|
async refreshCredentials(credentials: ProviderCredentials, log?: ExecutorLog | null) {
|
|
if (!credentials?.refreshToken) {
|
|
log?.warn?.("TOKEN_REFRESH", "Codex: no refresh token available, re-authentication required");
|
|
return null;
|
|
}
|
|
const result = await getAccessToken("codex", credentials, log);
|
|
if (!result) {
|
|
log?.warn?.("TOKEN_REFRESH", "Codex: token refresh failed — re-authentication required");
|
|
return null;
|
|
}
|
|
if (result.error) {
|
|
log?.warn?.(
|
|
"TOKEN_REFRESH",
|
|
`Codex: token refresh failed (${result.error}) — re-authentication required`
|
|
);
|
|
// Return null (not the error-only object): base.ts spreads any truthy
|
|
// result onto activeCredentials and persists it via onCredentialsRefreshed.
|
|
// Spreading `{ error }` would keep the stale/expired accessToken in place
|
|
// and write garbage to the connection. Returning null leaves the original
|
|
// credentials untouched so the upstream 401/403 drives the proper
|
|
// re-auth / mark-expired path instead.
|
|
return null;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
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|
* Transform request before sending - inject default instructions if missing
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|
*/
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|
transformRequest(
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|
model: string,
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|
bodyInput: unknown,
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|
stream: boolean,
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|
credentials: ProviderCredentials
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|
) {
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void stream;
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|
// Do not mutate the caller's payload in place. Combo quality checks and
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|
// other post-execute paths still inspect the original request body.
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|
const body: Record<string, unknown> =
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|
bodyInput && typeof bodyInput === "object"
|
|
? structuredClone(bodyInput as Record<string, unknown>)
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|
: {};
|
|
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|
const nativeCodexPassthrough = body?._nativeCodexPassthrough === true;
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|
const isCompactRequest = isCompactResponsesEndpoint(credentials?.requestEndpointPath);
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|
const requestDefaults = getCodexRequestDefaults(credentials?.providerSpecificData);
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|
const thinkingBudgetConfig = getThinkingBudgetConfig();
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|
const allowConnectionReasoningDefaults = thinkingBudgetConfig.mode === ThinkingMode.PASSTHROUGH;
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consumeResponsesStoreMarker(body);
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|
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// Codex /responses rejects stream=false, but /responses/compact rejects the stream field entirely.
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if (isCompactRequest) {
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delete body.stream;
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|
delete body.stream_options;
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delete body.client_metadata;
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|
} else {
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body.stream = true;
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|
}
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|
delete body._nativeCodexPassthrough;
|
|
|
|
const requestServiceTier = normalizeServiceTierValue(body.service_tier);
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|
if (requestServiceTier) {
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|
body.service_tier = requestServiceTier;
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|
} else if (requestDefaults.serviceTier) {
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|
body.service_tier = requestDefaults.serviceTier;
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}
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|
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|
// Issue #1832 & #1853: Map messages to input for clients like Cursor 5.5 that use responses/compact but send messages instead of input.
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|
// This MUST run before convertSystemToDeveloperRole and stripStoredItemReferences.
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|
if (!body.input && Array.isArray(body.messages)) {
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|
body.input = body.messages.map((msg: ResponsesMessageInput) => ({
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|
type: "message",
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|
role: typeof msg.role === "string" ? msg.role : "user",
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|
...(typeof msg.phase === "string" ? { phase: msg.phase } : {}),
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|
content:
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|
typeof msg.content === "string"
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|
? [{ type: "input_text", text: msg.content }]
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|
: Array.isArray(msg.content)
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|
? msg.content.map((contentPart: unknown) => {
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|
if (
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|
contentPart &&
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|
typeof contentPart === "object" &&
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|
!Array.isArray(contentPart) &&
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|
(contentPart as Record<string, unknown>).type === "text"
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|
) {
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|
return {
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|
type: "input_text",
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|
text: (contentPart as Record<string, unknown>).text,
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|
};
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|
}
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|
return contentPart;
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|
})
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|
: [],
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|
}));
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|
} else if (!body.input && typeof body.prompt === "string" && body.prompt.trim()) {
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|
// Issue #1872: Cursor occasionally passes the request as `prompt` instead of `messages`.
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|
body.input = [
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|
{
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|
type: "message",
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|
role: "user",
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|
content: [{ type: "input_text", text: body.prompt }],
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|
},
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|
];
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|
} else if (!body.input && Array.isArray(body.prompt)) {
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|
body.input = body.prompt.map((p: unknown) => ({
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|
type: "message",
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|
role: "user",
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|
content: [{ type: "input_text", text: typeof p === "string" ? p : JSON.stringify(p) }],
|
|
}));
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|
}
|
|
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|
normalizeCodexResponsesInput(body);
|
|
|
|
if (Array.isArray(body.input)) {
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|
body.input = sanitizeResponsesInputItems(body.input, false, {
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|
dropInternalAssistantMessages: !nativeCodexPassthrough,
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|
});
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|
}
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|
repairMissingCodexFunctionCallOutputs(body);
|
|
|
|
// ── Cache-aware system prompt handling (both paths) ──
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|
//
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|
// Convert system → developer role IN-PLACE so system prompts remain in the
|
|
// `input` array where they contribute to the automatic prompt cache prefix.
|
|
// The `instructions` field is NOT included in the cache key for GPT-5 models.
|
|
//
|
|
// This applies to BOTH native passthrough (Responses API) and translated
|
|
// (Chat Completions) paths. Previously the translated path used
|
|
// hoistSystemMessagesToInstructions() which moved system content out of
|
|
// `input` and into `instructions`, destroying cache eligibility.
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|
//
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|
// Ref: PR #1346 (original fix for passthrough only)
|
|
convertSystemToDeveloperRole(body);
|
|
|
|
if (nativeCodexPassthrough) {
|
|
// Passthrough: minimal placeholder instructions.
|
|
if (
|
|
!body.instructions ||
|
|
(typeof body.instructions === "string" && body.instructions.trim() === "")
|
|
) {
|
|
body.instructions = "Follow the developer instructions in the conversation.";
|
|
}
|
|
} else {
|
|
// Translated: keep the full Codex tool instructions only for tool-capable
|
|
// requests. Bare chat requests still need a neutral instructions value
|
|
// because the Codex Responses backend rejects requests without it.
|
|
const hasTools = Array.isArray(body.tools) && body.tools.length > 0;
|
|
if (
|
|
!body.instructions ||
|
|
(typeof body.instructions === "string" && body.instructions.trim() === "")
|
|
) {
|
|
if (hasTools) {
|
|
body.instructions = CODEX_DEFAULT_INSTRUCTIONS;
|
|
} else {
|
|
body.instructions = CODEX_CHAT_DEFAULT_INSTRUCTIONS;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Store: regular Codex Responses rejects store=true with
|
|
// "Store must be set to false", while /responses/compact rejects the
|
|
// store field entirely. Default regular requests to false unless the
|
|
// provider explicitly opts in (e.g. API-key accounts that support persistence).
|
|
// Ref: sub2api openai_codex_transform.go line 75-80
|
|
const explicitStoreSetting =
|
|
credentials?.providerSpecificData &&
|
|
typeof credentials.providerSpecificData === "object" &&
|
|
!Array.isArray(credentials.providerSpecificData)
|
|
? credentials.providerSpecificData.openaiStoreEnabled
|
|
: undefined;
|
|
if (isCompactRequest) {
|
|
delete body.store;
|
|
} else if (explicitStoreSetting === true) {
|
|
body.store = true;
|
|
} else {
|
|
// backend rejects store=true ("Store must be set to false"), so default to false.
|
|
body.store = false;
|
|
}
|
|
|
|
// Codex Responses only supports function tools with non-empty names.
|
|
// Cursor may include custom tools (e.g. ApplyPatch) that work locally but are
|
|
// invalid upstream, and translation bugs can leave orphaned/empty tool_choice names.
|
|
normalizeCodexTools(body, {
|
|
dropImageGeneration: isCodexFreePlan(credentials?.providerSpecificData),
|
|
preserveCustomTools: nativeCodexPassthrough,
|
|
});
|
|
|
|
// Strip stored response item references (rs_, resp_, msg_ IDs) from input.
|
|
// The /codex/responses endpoint does not persist responses even with store=true,
|
|
// so any references to previous response items would cause 404 errors.
|
|
stripStoredItemReferences(body);
|
|
|
|
// Issue #806: Even for native passthrough, some clients (purist completions) might indiscriminately inject
|
|
// a `messages` or `prompt` array which the strict Codex Responses schema rejects.
|
|
delete body.messages;
|
|
delete body.prompt;
|
|
|
|
let modelEffort: string | null = null;
|
|
let cleanModel = typeof body.model === "string" ? body.model : model;
|
|
const splitModel = splitCodexReasoningSuffix(cleanModel);
|
|
if (splitModel.effort) {
|
|
modelEffort = splitModel.effort;
|
|
body.model = splitModel.baseModel;
|
|
cleanModel = splitModel.baseModel;
|
|
}
|
|
|
|
const reasoningRecord =
|
|
body.reasoning && typeof body.reasoning === "object" && !Array.isArray(body.reasoning)
|
|
? (body.reasoning as Record<string, unknown>)
|
|
: null;
|
|
const explicitReasoning = normalizeEffortValue(reasoningRecord?.effort);
|
|
const requestReasoningEffort = normalizeEffortValue(body.reasoning_effort);
|
|
const fallbackReasoningEffort = allowConnectionReasoningDefaults
|
|
? requestDefaults.reasoningEffort || "medium"
|
|
: undefined;
|
|
// Issue #2331: model suffix aliases (for example gpt-5.5-xhigh) represent an
|
|
// explicit model selection, so they must override client-injected defaults such
|
|
// as OpenCode's automatic reasoning.effort=medium for GPT-5-family requests.
|
|
const rawEffort =
|
|
modelEffort || explicitReasoning || requestReasoningEffort || fallbackReasoningEffort;
|
|
|
|
if (rawEffort) {
|
|
body.reasoning = {
|
|
...(reasoningRecord || {}),
|
|
effort: clampEffort(cleanModel, rawEffort),
|
|
};
|
|
}
|
|
ensureCodexReasoningSummary(body);
|
|
delete body.reasoning_effort;
|
|
|
|
// Remove unsupported token limit parameters BEFORE the passthrough return.
|
|
// Codex API rejects both max_tokens and max_output_tokens regardless of
|
|
// whether the request came via native passthrough or translation.
|
|
delete body.max_tokens;
|
|
delete body.max_output_tokens;
|
|
// VS Code Copilot BYOK Responses requests include `truncation` (for example
|
|
// "auto" or "disabled"). The Codex /responses backend currently rejects this
|
|
// field entirely with 400 Unsupported parameter: truncation, so strip it for
|
|
// both native passthrough and translated requests.
|
|
delete body.truncation;
|
|
delete body.background; // Droid CLI sends this but Codex Responses API rejects it
|
|
|
|
// Issue #3317: strip client-only fields the Codex Responses API rejects with
|
|
// 400 "Unsupported parameter" — for BOTH the native passthrough (early return
|
|
// below) and the translated path. The chat-completions path already removes
|
|
// these (base.ts prompt_cache_retention #1884; openai-responses translator
|
|
// safety_identifier #2770), but the responses->responses passthrough skips
|
|
// translation. `user` is always rejected by Codex /responses, so it is removed
|
|
// unconditionally here (unlike base.ts, which only drops it when empty).
|
|
delete body.prompt_cache_retention;
|
|
delete body.safety_identifier;
|
|
delete body.user;
|
|
|
|
// Inject prompt_cache_key for Codex prompt caching.
|
|
// The official Codex client sets this to conversation_id (a stable UUID per session).
|
|
// Ref: openai/codex core/src/client.rs line 853:
|
|
// let prompt_cache_key = Some(self.client.state.conversation_id.to_string());
|
|
// IMPORTANT: Capture session/conversation IDs BEFORE deletion below (#1643).
|
|
if (!body.prompt_cache_key) {
|
|
const cacheSessionId = this.getPromptCacheSessionId(credentials, body);
|
|
if (cacheSessionId) {
|
|
body.prompt_cache_key = cacheSessionId;
|
|
}
|
|
}
|
|
if (!isCompactRequest) {
|
|
applyCodexClientMetadata(
|
|
body,
|
|
credentials?.providerSpecificData?.codexClientIdentity as
|
|
CodexClientIdentity | null | undefined
|
|
);
|
|
}
|
|
|
|
// Delete session_id and conversation_id from the body.
|
|
// These are often injected by OmniRoute's fallback logic for store=true,
|
|
// but the upstream Codex API strictly rejects them as unsupported parameters.
|
|
delete body.session_id;
|
|
delete body.conversation_id;
|
|
|
|
if (nativeCodexPassthrough) {
|
|
return body;
|
|
}
|
|
|
|
// GPT-5 verbosity: fold Chat-style `verbosity` / Responses `text.verbosity` into a
|
|
// single validated `text:{verbosity}` so the allowlist below (which now permits
|
|
// `text`) lets it reach upstream instead of dropping it silently.
|
|
normalizeCodexVerbosity(body);
|
|
|
|
// Issue #2608: Use an allowlist of known Responses API fields instead of a
|
|
// denylist of Chat Completions fields. The denylist approach missed fields
|
|
// like `stop`, `response_format`, `logit_bias`, `function_call`, `functions`,
|
|
// `max_completion_tokens`, and `parallel_tool_calls` — causing gpt-5.5 to
|
|
// reject with "routing_unsupported" (400). An allowlist is future-proof:
|
|
// any unknown field from Chat Completions (or other formats) is stripped.
|
|
const RESPONSES_API_ALLOWLIST = new Set([
|
|
"model",
|
|
"input",
|
|
"instructions",
|
|
"tools",
|
|
"tool_choice",
|
|
"stream",
|
|
"store",
|
|
"reasoning",
|
|
"service_tier",
|
|
"include",
|
|
"previous_response_id",
|
|
"prompt_cache_key",
|
|
"client_metadata",
|
|
// GPT-5 output verbosity ({ verbosity } — normalized above by normalizeCodexVerbosity).
|
|
"text",
|
|
// Internal markers used by OmniRoute pipeline
|
|
"_omnirouteResponsesStore",
|
|
]);
|
|
|
|
for (const key of Object.keys(body)) {
|
|
if (!RESPONSES_API_ALLOWLIST.has(key)) {
|
|
delete body[key];
|
|
}
|
|
}
|
|
|
|
return body;
|
|
}
|
|
}
|