Mixing LLM Providers Inside a Neuron AI Agent

When I started the v3 of Neuron AI, the first big decision I had to make was not about agents or tools, but about messages. Each LLM provider has its own way of describing a conversation: OpenAI uses one shape, Anthropic another, Gemini and Ollama add their own variations on top. I could have written thin wrappers and let each provider speak its native dialect, pushing the complexity back to the application developer.