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LangChain has introduced a new terminal interface for Managed Deep Agents, allowing developers to test agents locally via the `mda chat` command for lightweight development.
A user describes an unexpected behavior where the quantized Qwen 3.8 27B model opened a browser to test code autonomously during development, highlighting emergent capabilities.
Tested the updated Gemma 4 locally using llama.cpp on an M5 Pro, achieving 60 tokens/s for coding tasks with OpenCode; good for backend but poor for UI/UX.