testbench-mqtt

Use this skill whenever tests involve MQTT communication — starting/stopping the mosquitto broker on the testbench Pi, publishing test messages, subscribing to topics, or verifying ESP32 MQTT client behavior. The broker runs on the Pi's WiFi AP network (192.168.4.1:1883) so DUTs can reach it without internet. Use for MQTT integration tests, pub/sub verification, and broker lifecycle management. Triggers on "MQTT",…