mirror of
https://github.com/getcompanion-ai/co-mono.git
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334 lines
9.3 KiB
TypeScript
334 lines
9.3 KiB
TypeScript
import { TOOL_REMAP_MESSAGE } from "./prompts/codex.js";
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import { CODEX_PI_BRIDGE } from "./prompts/pi-codex-bridge.js";
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export interface ReasoningConfig {
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effort: "none" | "minimal" | "low" | "medium" | "high" | "xhigh";
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summary: "auto" | "concise" | "detailed" | "off" | "on";
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}
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export interface CodexRequestOptions {
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reasoningEffort?: ReasoningConfig["effort"];
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reasoningSummary?: ReasoningConfig["summary"] | null;
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textVerbosity?: "low" | "medium" | "high";
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include?: string[];
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}
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export interface InputItem {
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id?: string | null;
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type?: string | null;
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role?: string;
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content?: unknown;
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call_id?: string | null;
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name?: string;
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output?: unknown;
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arguments?: string;
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}
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export interface RequestBody {
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model: string;
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store?: boolean;
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stream?: boolean;
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instructions?: string;
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input?: InputItem[];
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tools?: unknown;
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temperature?: number;
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reasoning?: Partial<ReasoningConfig>;
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text?: {
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verbosity?: "low" | "medium" | "high";
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};
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include?: string[];
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prompt_cache_key?: string;
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max_output_tokens?: number;
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max_completion_tokens?: number;
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[key: string]: unknown;
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}
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const MODEL_MAP: Record<string, string> = {
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"gpt-5.1-codex": "gpt-5.1-codex",
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"gpt-5.1-codex-low": "gpt-5.1-codex",
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"gpt-5.1-codex-medium": "gpt-5.1-codex",
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"gpt-5.1-codex-high": "gpt-5.1-codex",
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"gpt-5.1-codex-max": "gpt-5.1-codex-max",
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"gpt-5.1-codex-max-low": "gpt-5.1-codex-max",
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"gpt-5.1-codex-max-medium": "gpt-5.1-codex-max",
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"gpt-5.1-codex-max-high": "gpt-5.1-codex-max",
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"gpt-5.1-codex-max-xhigh": "gpt-5.1-codex-max",
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"gpt-5.2": "gpt-5.2",
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"gpt-5.2-none": "gpt-5.2",
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"gpt-5.2-low": "gpt-5.2",
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"gpt-5.2-medium": "gpt-5.2",
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"gpt-5.2-high": "gpt-5.2",
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"gpt-5.2-xhigh": "gpt-5.2",
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"gpt-5.2-codex": "gpt-5.2-codex",
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"gpt-5.2-codex-low": "gpt-5.2-codex",
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"gpt-5.2-codex-medium": "gpt-5.2-codex",
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"gpt-5.2-codex-high": "gpt-5.2-codex",
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"gpt-5.2-codex-xhigh": "gpt-5.2-codex",
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"gpt-5.1-codex-mini": "gpt-5.1-codex-mini",
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"gpt-5.1-codex-mini-medium": "gpt-5.1-codex-mini",
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"gpt-5.1-codex-mini-high": "gpt-5.1-codex-mini",
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"gpt-5.1": "gpt-5.1",
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"gpt-5.1-none": "gpt-5.1",
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"gpt-5.1-low": "gpt-5.1",
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"gpt-5.1-medium": "gpt-5.1",
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"gpt-5.1-high": "gpt-5.1",
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"gpt-5.1-chat-latest": "gpt-5.1",
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"gpt-5-codex": "gpt-5.1-codex",
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"codex-mini-latest": "gpt-5.1-codex-mini",
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"gpt-5-codex-mini": "gpt-5.1-codex-mini",
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"gpt-5-codex-mini-medium": "gpt-5.1-codex-mini",
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"gpt-5-codex-mini-high": "gpt-5.1-codex-mini",
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"gpt-5": "gpt-5.1",
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"gpt-5-mini": "gpt-5.1",
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"gpt-5-nano": "gpt-5.1",
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};
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function getNormalizedModel(modelId: string): string | undefined {
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if (MODEL_MAP[modelId]) return MODEL_MAP[modelId];
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const lowerModelId = modelId.toLowerCase();
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const match = Object.keys(MODEL_MAP).find((key) => key.toLowerCase() === lowerModelId);
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return match ? MODEL_MAP[match] : undefined;
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}
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export function normalizeModel(model: string | undefined): string {
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if (!model) return "gpt-5.1";
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const modelId = model.includes("/") ? model.split("/").pop()! : model;
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const mappedModel = getNormalizedModel(modelId);
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if (mappedModel) return mappedModel;
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const normalized = modelId.toLowerCase();
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if (normalized.includes("gpt-5.2-codex") || normalized.includes("gpt 5.2 codex")) {
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return "gpt-5.2-codex";
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}
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if (normalized.includes("gpt-5.2") || normalized.includes("gpt 5.2")) {
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return "gpt-5.2";
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}
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if (normalized.includes("gpt-5.1-codex-max") || normalized.includes("gpt 5.1 codex max")) {
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return "gpt-5.1-codex-max";
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}
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if (normalized.includes("gpt-5.1-codex-mini") || normalized.includes("gpt 5.1 codex mini")) {
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return "gpt-5.1-codex-mini";
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}
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if (
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normalized.includes("codex-mini-latest") ||
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normalized.includes("gpt-5-codex-mini") ||
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normalized.includes("gpt 5 codex mini")
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) {
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return "codex-mini-latest";
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}
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if (normalized.includes("gpt-5.1-codex") || normalized.includes("gpt 5.1 codex")) {
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return "gpt-5.1-codex";
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}
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if (normalized.includes("gpt-5.1") || normalized.includes("gpt 5.1")) {
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return "gpt-5.1";
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}
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if (normalized.includes("codex")) {
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return "gpt-5.1-codex";
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}
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if (normalized.includes("gpt-5") || normalized.includes("gpt 5")) {
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return "gpt-5.1";
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}
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return "gpt-5.1";
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}
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function getReasoningConfig(modelName: string | undefined, options: CodexRequestOptions = {}): ReasoningConfig {
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const normalizedName = modelName?.toLowerCase() ?? "";
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const isGpt52Codex = normalizedName.includes("gpt-5.2-codex") || normalizedName.includes("gpt 5.2 codex");
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const isGpt52General = (normalizedName.includes("gpt-5.2") || normalizedName.includes("gpt 5.2")) && !isGpt52Codex;
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const isCodexMax = normalizedName.includes("codex-max") || normalizedName.includes("codex max");
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const isCodexMini =
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normalizedName.includes("codex-mini") ||
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normalizedName.includes("codex mini") ||
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normalizedName.includes("codex_mini") ||
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normalizedName.includes("codex-mini-latest");
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const isCodex = normalizedName.includes("codex") && !isCodexMini;
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const isLightweight = !isCodexMini && (normalizedName.includes("nano") || normalizedName.includes("mini"));
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const isGpt51General =
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(normalizedName.includes("gpt-5.1") || normalizedName.includes("gpt 5.1")) &&
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!isCodex &&
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!isCodexMax &&
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!isCodexMini;
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const supportsXhigh = isGpt52General || isGpt52Codex || isCodexMax;
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const supportsNone = isGpt52General || isGpt51General;
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const defaultEffort: ReasoningConfig["effort"] = isCodexMini
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? "medium"
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: supportsXhigh
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? "high"
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: isLightweight
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? "minimal"
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: "medium";
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let effort = options.reasoningEffort || defaultEffort;
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if (isCodexMini) {
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if (effort === "minimal" || effort === "low" || effort === "none") {
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effort = "medium";
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}
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if (effort === "xhigh") {
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effort = "high";
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}
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if (effort !== "high" && effort !== "medium") {
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effort = "medium";
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}
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}
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if (!supportsXhigh && effort === "xhigh") {
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effort = "high";
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}
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if (!supportsNone && effort === "none") {
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effort = "low";
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}
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if (isCodex && effort === "minimal") {
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effort = "low";
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}
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return {
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effort,
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summary: options.reasoningSummary ?? "auto",
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};
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}
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function filterInput(input: InputItem[] | undefined): InputItem[] | undefined {
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if (!Array.isArray(input)) return input;
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return input
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.filter((item) => item.type !== "item_reference")
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.map((item) => {
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if (item.id != null) {
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const { id: _id, ...rest } = item;
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return rest as InputItem;
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}
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return item;
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});
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}
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function addCodexBridgeMessage(
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input: InputItem[] | undefined,
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hasTools: boolean,
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systemPrompt?: string,
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): InputItem[] | undefined {
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if (!hasTools || !Array.isArray(input)) return input;
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const bridgeText = systemPrompt ? `${CODEX_PI_BRIDGE}\n\n${systemPrompt}` : CODEX_PI_BRIDGE;
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const bridgeMessage: InputItem = {
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type: "message",
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role: "developer",
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content: [
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{
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type: "input_text",
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text: bridgeText,
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},
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],
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};
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return [bridgeMessage, ...input];
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}
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function addToolRemapMessage(input: InputItem[] | undefined, hasTools: boolean): InputItem[] | undefined {
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if (!hasTools || !Array.isArray(input)) return input;
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const toolRemapMessage: InputItem = {
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type: "message",
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role: "developer",
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content: [
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{
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type: "input_text",
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text: TOOL_REMAP_MESSAGE,
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},
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],
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};
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return [toolRemapMessage, ...input];
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}
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export async function transformRequestBody(
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body: RequestBody,
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codexInstructions: string,
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options: CodexRequestOptions = {},
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codexMode = true,
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systemPrompt?: string,
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): Promise<RequestBody> {
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const normalizedModel = normalizeModel(body.model);
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body.model = normalizedModel;
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body.store = false;
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body.stream = true;
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body.instructions = codexInstructions;
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if (body.input && Array.isArray(body.input)) {
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body.input = filterInput(body.input);
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if (codexMode) {
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body.input = addCodexBridgeMessage(body.input, !!body.tools, systemPrompt);
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} else {
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body.input = addToolRemapMessage(body.input, !!body.tools);
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}
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if (body.input) {
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const functionCallIds = new Set(
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body.input
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.filter((item) => item.type === "function_call" && typeof item.call_id === "string")
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.map((item) => item.call_id as string),
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);
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body.input = body.input.map((item) => {
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if (item.type === "function_call_output" && typeof item.call_id === "string") {
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const callId = item.call_id as string;
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if (!functionCallIds.has(callId)) {
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const itemRecord = item as unknown as Record<string, unknown>;
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const toolName = typeof itemRecord.name === "string" ? itemRecord.name : "tool";
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let text = "";
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try {
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const output = itemRecord.output;
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text = typeof output === "string" ? output : JSON.stringify(output);
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} catch {
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text = String(itemRecord.output ?? "");
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}
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if (text.length > 16000) {
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text = `${text.slice(0, 16000)}\n...[truncated]`;
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}
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return {
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type: "message",
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role: "assistant",
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content: `[Previous ${toolName} result; call_id=${callId}]: ${text}`,
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} as InputItem;
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}
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}
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return item;
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});
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}
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}
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if (options.reasoningEffort !== undefined) {
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const reasoningConfig = getReasoningConfig(normalizedModel, options);
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body.reasoning = {
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...body.reasoning,
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...reasoningConfig,
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};
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} else {
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delete body.reasoning;
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}
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body.text = {
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...body.text,
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verbosity: options.textVerbosity || "medium",
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};
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const include = Array.isArray(options.include) ? [...options.include] : [];
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include.push("reasoning.encrypted_content");
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body.include = Array.from(new Set(include));
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delete body.max_output_tokens;
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delete body.max_completion_tokens;
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return body;
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}
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