The **xcraft‑core‑probe** module adds lightweight profiling to Xcraft applications. It records timestamped events (optionally with execution‑time deltas) into a per‑tribe SQLite database, batching writes for high performance, and can be toggled on/off via the `XCRAFT_PROBE` environment variable or Xcraft bus commands. It is intended for developers and operators of Xcraft services who need built‑in, low‑overhead performance monitoring and event tracing.