# HuggingFace Token for model access
HUGGINGFACE_TOKEN=your_token_here

# Optional: LangSmith for observability (bonus feature)
LANGCHAIN_API_KEY=your_langsmith_key_here
LANGCHAIN_TRACING_V2=true
LANGCHAIN_PROJECT=gaia-agent-system

# Model Configuration (defaults to free Qwen models)
ROUTER_MODEL=Qwen/Qwen2.5-3B-Instruct
MAIN_MODEL=Qwen/Qwen2.5-14B-Instruct
COMPLEX_MODEL=Qwen/Qwen2.5-32B-Instruct

# API Configuration
MAX_TOKENS=1000
TEMPERATURE=0.1
TIMEOUT=30