/**
 * claudeCodeRuntime — the Claude Code `HarnessRuntime` (spawn `claude`, reach the
 * mock via `ANTHROPIC_BASE_URL` with a dummy `ANTHROPIC_API_KEY`). The runners
 * (`harness-test.ts`, `eval.ts`) read the binary + env from here instead of
 * hard-coding them; a Codex adapter defines `codexRuntime` and its runner uses it.
 */
import type { HarnessRuntime } from "../../core/runtime.js";
export declare const claudeCodeRuntime: HarnessRuntime;
/**
 * Build the spawn env that points the agent CLI at the mock model: the caller's
 * environment plus the runtime's base-URL var (→ the mock's URL) and a dummy
 * API key. Pure (no spawn), so it's unit-tested directly — the testable seam of
 * the otherwise un-coverable real-subprocess path.
 */
export declare function mockModelEnv(runtime: HarnessRuntime, baseUrl: string, base?: NodeJS.ProcessEnv): NodeJS.ProcessEnv;
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