.env.example

# ============== LLM CONFIGURATION ==============

# Provider: "openai" or "anthropic"
LLM_PROVIDER=openai

# API Keys (at least one required for full LLM analysis)
OPENAI_API_KEY=sk-your-key-here
ANTHROPIC_API_KEY=sk-ant-your-key-here

# Model names (optional - sensible defaults)
OPENAI_MODEL=gpt-5.1
ANTHROPIC_MODEL=claude-sonnet-4-5-20250929

# ============== AGENT CONFIGURATION ==============

MAX_ITERATIONS=10
SEARCH_TIMEOUT=30
LOG_LEVEL=INFO

# ============== EXTERNAL SERVICES ==============

# PubMed (optional - higher rate limits)
NCBI_API_KEY=your-ncbi-key-here

# Modal Sandbox (optional - for secure code execution)
MODAL_TOKEN_ID=ak-your-modal-token-id-here
MODAL_TOKEN_SECRET=your-modal-token-secret-here

# Vector Database (optional - for LlamaIndex RAG)
CHROMA_DB_PATH=./chroma_db