/**
 * `fit-run-worker <specPath>` — the headless fit run forked by the live view
 * (ADR-0028). The live runner forks `node <cliScript> fit-run-worker <spec>`;
 * because it runs through the full CLI bootstrap, the language + tool registries,
 * project, and config are populated in scope exactly as a normal `fit` run — so
 * results are byte-identical (the reason this is a forked subcommand, not a
 * worker thread).
 *
 * It is headless: instead of rendering, it streams the engine's progress and its
 * final result over the fork IPC channel (`process.send`) as {@link WorkerMessage}s,
 * which the parent's subprocess transport relays to the shared `<LiveProgress>`
 * renderer. Persistence + egress stay on the parent (the engine is
 * persistence-free; Phase 2) — the worker only computes.
 *
 * Internal command — not user-facing; the live runner is its only caller.
 */
import { type CommandSpec, type ToolCliContext } from '@opensip-cli/core';
/**
 * Read the {@link FitOptions} spec, run `executeFit` headless, and stream progress
 * + the final result over IPC. Never throws to the caller — a failure is sent as
 * a `{ kind: 'error' }` message so the parent's `result` promise rejects cleanly.
 */
export declare function executeFitWorker(specPath: string): Promise<void>;
/** `fit-run-worker` — [internal] headless fit run, IPC progress/result. */
export declare const fitRunWorkerCommandSpec: CommandSpec<unknown, ToolCliContext>;
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