# Required
ANTHROPIC_API_KEY=your_anthropic_api_key_here

# Required for PubMed Entrez API (NCBI requires email for all Entrez requests)
ENTREZ_EMAIL=your_email@example.com

# Optional: increases PubMed Entrez rate limit from 3/s to 10/s
NCBI_API_KEY=your_ncbi_api_key_here

# Optional: LLM provider override (default: anthropic)
LLM_PROVIDER=anthropic

# Optional: logging
CANDLE_LOG_LEVEL=WARNING
CANDLE_LOG_DIR=logs