The Home Assistant tool enables Open WebUI to interact with your Home Assistant instance using secure, LLM-friendly API calls. It gives the language model superpowers to: Discover all connected devices (lights, switches, fans, etc.) Understand their current state and available features (like brightness, speed, temperature) Reason across device types and decide what action to take Trigger control actions like turning things on/off or setting values The tool supports rich observability by emitting markdown-formatted tables and status updates at each step, making it ideal for language models that rely on structured reasoning and incremental feedback loops.