/**
 * Builtin provider profile for OpenAI / Codex (ChatGPT backend).
 *
 * Registers the `openai` transport (aliases `codex`, `chatgpt`, `openai-codex`)
 * with BOTH auth paths:
 *   - `api_key` — standard `sk-...` keys against `https://api.openai.com/v1`.
 *   - `oauth`   — RFC 7636 PKCE login (`cleo llm login openai` / `... codex`)
 *     that authenticates a ChatGPT (Plus/Pro/Team) account against the Codex
 *     backend. OAuth tokens do NOT work against `api.openai.com`; the runtime
 *     routes them to `https://chatgpt.com/backend-api/codex` via
 *     {@link CodexResponsesTransport} + {@link buildCodexOAuthHeaders}.
 *
 * PKCE constants are the upstream codex-rs CLI's published first-party values,
 * cross-verified against three independent clients (opencode, openclaw,
 * hermes-agent) and the official `openai/codex` source — no per-app
 * registration required. Override the client id with
 * `CLEO_OPENAI_OAUTH_CLIENT_ID` for a custom OAuth application.
 *
 * @task T11669
 * @epic SG-PROVIDER-AUTH-UNIFICATION (E4-CODEX-PKCE-LOGIN)
 */
import type { ProviderProfile } from '@cleocode/contracts';
/**
 * Canonical OpenAI/Codex OAuth PKCE client id (the codex-rs CLI first-party
 * client). Override via `CLEO_OPENAI_OAUTH_CLIENT_ID`.
 */
export declare const OPENAI_CODEX_OAUTH_CLIENT_ID = "app_EMoamEEZ73f0CkXaXp7hrann";
/**
 * OpenAI / Codex provider profile.
 *
 * `defaultModel` is a static FALLBACK used when no live catalog snapshot is
 * available (i.e. before `cleo llm refresh-catalog` has been run). At runtime,
 * `cleo llm use openai` / `cleo llm profile <role> openai` derive the default
 * from the live catalog via `resolveProviderDefaultModel` and validate any
 * explicit `--model` against `validateModelForProvider` (T11773 · E8).
 *
 * Override per-credential:
 *   `cleo llm use openai --model <m>`
 *   `cleo llm profile <role> openai --model <m>`
 *
 * @task T11773
 */
export declare const openaiProfile: ProviderProfile;
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