/**
 * `USE_OLD_DEVTOOLS` — single source of truth for which backend the MCP
 * server targets.
 *
 * Defaults to OLD devtools (the system still in production) while the new
 * "builder" backend is under development. Builder mode must be opted into
 * EXPLICITLY by setting `USE_OLD_DEVTOOLS=false`. Anything else — unset,
 * empty, `true`, `1`, a typo — keeps old mode on, so a forgotten env var
 * can never silently route a developer at the half-built builder backend.
 *
 * The actual env read lives in `../consts.ts` (the single env-access module);
 * this widely-imported path re-exports it for back-compat.
 */
export { useOldDevtools } from '../consts.ts'