u/Creative_Sushi

This is a lightweight AI coding agent built entirely in MATLAB. The core part is just a few lines of code.

chat     = openAIChat(systemPrompt, Tools=tools);   % configure the LLM
messages = messageHistory;                          % conversation history


while true                                          % agentic loop
    [text, response] = generate(chat, messages);    % call the LLM
    messages = addResponseMessage(messages, response);


    if isempty(text)
        results = run_tools(response);              % execute requested tools
        messages = addToolMessage(messages, results);
    else
        disp(text);                                 % no more tool calls — done
        break
    end
end

That's it.

In practice, this is way too slow on my machine - no powerful GPU - to be practical (I sped up the video), and you are better off using frontier models. But if you have a very powerful machine and are willing to run local LLMs via LLMs with MATLAB Add-on, it's possible.