/**
 * codexRuntime — EXPERIMENTAL, internal-only. A prototype `HarnessRuntime` for
 * Codex: spawn `codex`, and point it at a no-key mock.
 *
 * PROVEN wiring (validated against real codex-cli 0.139.0): the clean keyless
 * route is NOT the built-in `OPENAI_BASE_URL` override the prototype guessed
 * (the docs called that "messy") — it is a `[model_providers.mock]` provider
 * defined inline via `-c` flags on `codex exec`. `codexMockArgs(baseUrl)`
 * returns that flag array (the `wireMock` recipe as data) and `codexMockEnv()`
 * returns the dummy-key env codex reads through it. So "point at the mock" is a
 * flag-based *operation* here, not a single env var.
 *
 * The `HarnessRuntime` port still requires `modelBaseUrlEnv`/`modelApiKeyEnv`
 * (the env-var transport axis), so we keep valid values for conformance — but
 * codex's real wiring is the flag-based recipe below, not those env vars. The
 * port's `wireMock(baseUrl)` surfaces that recipe as `{ args, env }` so the
 * generalized `runHarnessTest` runner drives codex the same way it drives
 * Claude Code; `codexMockArgs`/`codexMockEnv` remain exported (used by
 * `wireMock` and by `mock-model.test.ts`).
 */
import type { HarnessRuntime } from "../../core/runtime.js";
export declare const codexRuntime: HarnessRuntime;
/**
 * The PROVEN `-c` flag array that points `codex exec` at a mock served at
 * `baseUrl` (e.g. `http://127.0.0.1:PORT`) over the Responses wire API, keyless.
 * Defines a `[model_providers.mock]` provider inline and selects it as the
 * active model provider. `baseUrl` is suffixed with `/v1` (codex appends
 * `/responses`). Combine with `codexMockEnv()` and the `codex exec` flags
 * `--ignore-user-config --skip-git-repo-check --ephemeral
 * --dangerously-bypass-approvals-and-sandbox -c model="gpt-5-codex"`.
 */
export declare function codexMockArgs(baseUrl: string): string[];
/**
 * The dummy-key env codex reads `model_providers.mock.env_key` through. Codex
 * sends `Authorization: Bearer dummy-key`; the mock ignores it.
 */
export declare function codexMockEnv(): Record<string, string>;
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