Comment by sanchitmonga22

Thanks for trying it and for filing the bug, we're looking into the homebrew install issue.

On unsloth quants: agreed, they're consistently better bit-for-bit. Adding broader quantization format support (including unsloth's approach) is on the roadmap. Right now MetalRT works with MLX 4-bit files and GGUF Q4_K_M, we want to expand that.

On the grounding issue ("navigate to google.com" not actually navigating): you're right, that's a gap. The "open_url" action exists but the LLM doesn't always route to it correctly, especially with compound commands. Small models (0.6B-1.2B) have limited tool-calling accuracy, upgrading to Qwen3.5 4B via rcli upgrade-llm helps significantly. We're also improving the action routing prompts.

Appreciate the detailed feedback, this is exactly what we need.