# Google Gemini (DeepMind) - reasoning model GOOGLE_API_KEY= # Tavily - public-guidance grounding only (never patient text) TAVILY_API_KEY= # LangSmith - tracing + evals LANGSMITH_API_KEY= LANGSMITH_TRACING=true LANGSMITH_PROJECT=noteguard-hackathon # optional: swap the model (any init_chat_model id, e.g. anthropic:claude-... ) NOTEGUARD_MODEL=google_genai:gemini-2.5-flash