xcraft‑core‑busclient is the primary JavaScript client library for the Xcraft inter‑process bus. It lets Xcraft services and applications connect to a bus server, send RPC‑style commands, publish and subscribe to events, and automatically handles authentication (TLS, tokens), heart‑beat‑based auto‑connect, and reconnection. The package is aimed at developers building components within the Xcraft ecosystem who need a reliable, secure communication layer between modules.