.env.example

# ALS Research Agent Environment Configuration

# Anthropic API Key (Required)
ANTHROPIC_API_KEY=your_anthropic_api_key_here

# Optional: Specify which Anthropic model to use
# Available models: claude-sonnet-4-5-20250929, claude-opus-3-20240229, claude-3-haiku-20240307
# Default: claude-sonnet-4-5-20250929
ANTHROPIC_MODEL=claude-sonnet-4-5-20250929

# Optional: Gradio server configuration
GRADIO_SERVER_PORT=7860  # Default port for Gradio UI

# ElevenLabs Configuration (Optional - for voice capabilities)
ELEVENLABS_API_KEY=your_elevenlabs_api_key_here
ELEVENLABS_VOICE_ID=21m00Tcm4TlvDq8ikWAM  # Rachel voice (clear for medical terms)

# LlamaIndex RAG Configuration (Optional - for research memory)
CHROMA_DB_PATH=./chroma_db  # Path to persist vector database
LLAMAINDEX_EMBED_MODEL=dmis-lab/biobert-base-cased-v1.2  # Biomedical embedding model
LLAMAINDEX_CHUNK_SIZE=1024  # Text chunk size for indexing
LLAMAINDEX_CHUNK_OVERLAP=200  # Overlap between chunks

# Optional: Show agent thinking process in UI
SHOW_THINKING=false

# Optional: LLM provider preference
# Options: quality_optimize (best model), cost_optimize (cheaper model), auto (default)
LLM_PROVIDER_PREFERENCE=auto

# Research API Configuration (Optional)
# Configure these if you want to limit API usage
RATE_LIMIT_PUBMED_DELAY=1.0  # Delay between PubMed requests (seconds)
RATE_LIMIT_BIORXIV_DELAY=1.0  # Delay between bioRxiv requests (seconds)

# Optional: Max concurrent searches
MAX_CONCURRENT_SEARCHES=3