/**
 * Sub-agents spawn the ggcoder CLI in JSON mode to run a delegated task. In the
 * packaged desktop app the only runnable entry is THIS bundle (there's no
 * sibling `cli.js`), so the subagent tool ends up spawning the sidecar itself.
 * Without this guard that would boot a second HTTP server, emit no NDJSON, and
 * hang until the 10-minute hard timeout. So when invoked with `--json`, behave
 * exactly like `ggcoder --json …`: stream the sub-agent run as NDJSON and exit,
 * never starting the HTTP/SSE server. Mirrors the `values.json` branch in cli.ts.
 */
export declare function runJsonModeIfRequested(): Promise<boolean>;