Files
OmniRoute/open-sse/executors/codex.ts

86 lines
3.0 KiB
TypeScript

import { BaseExecutor } from "./base.ts";
import { CODEX_DEFAULT_INSTRUCTIONS } from "../config/codexInstructions.ts";
import { PROVIDERS } from "../config/constants.ts";
/**
* 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);
}
/**
* 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, stream = true) {
const headers = super.buildHeaders(credentials, true);
// Add workspace binding header if workspaceId is persisted
const workspaceId = credentials?.providerSpecificData?.workspaceId;
if (workspaceId) {
headers["chatgpt-account-id"] = workspaceId;
}
return headers;
}
/**
* Transform request before sending - inject default instructions if missing
*/
transformRequest(model, body, stream, credentials) {
// Codex /responses rejects stream=false; we aggregate SSE back to JSON when needed.
body.stream = true;
// If no instructions provided, inject default Codex instructions
if (!body.instructions || body.instructions.trim() === "") {
body.instructions = CODEX_DEFAULT_INSTRUCTIONS;
}
// Ensure store is false (Codex requirement)
body.store = false;
// Extract thinking level from model name suffix
// e.g., gpt-5.3-codex-high → high, gpt-5.3-codex → medium (default)
const effortLevels = ["none", "low", "medium", "high", "xhigh"];
let modelEffort = null;
for (const level of effortLevels) {
if (model.endsWith(`-${level}`)) {
modelEffort = level;
// Strip suffix from model name for actual API call
body.model = body.model.replace(`-${level}`, "");
break;
}
}
// Priority: explicit reasoning.effort > reasoning_effort param > model suffix > default (medium)
if (!body.reasoning) {
const effort = body.reasoning_effort || modelEffort || "medium";
body.reasoning = { effort };
}
delete body.reasoning_effort;
// Remove unsupported parameters for Codex API
delete body.temperature;
delete body.top_p;
delete body.frequency_penalty;
delete body.presence_penalty;
delete body.logprobs;
delete body.top_logprobs;
delete body.n;
delete body.seed;
delete body.max_tokens;
delete body.user; // Cursor sends this but Codex doesn't support it
delete body.prompt_cache_retention; // Cursor sends this but Codex doesn't support it
delete body.metadata; // Cursor sends this but Codex doesn't support it
delete body.stream_options; // Cursor sends this but Codex doesn't support it
delete body.safety_identifier; // Droid CLI sends this but Codex doesn't support it
return body;
}
}