# Multi-Agent System Environment Variables Template
# Copy this file to .env and fill in your actual API keys

# ============================================
# Langfuse Configuration (for observability)
# ============================================
LANGFUSE_PUBLIC_KEY=pk-lf-xxx
LANGFUSE_SECRET_KEY=sk-lf-xxx
LANGFUSE_HOST=https://cloud.langfuse.com
LANGFUSE_ENABLED=true

# ============================================
# LLM Provider Configuration
# ============================================
# Priority order: comma-separated list (e.g., "openrouter,gemini,openai")
# Default: openrouter
LLM_PROVIDERS=openrouter

# OpenRouter Configuration (default provider)
OPENROUTER_API_KEY=sk-or-v1-xxx
OPENROUTER_MODEL=openai/gpt-4
OPENROUTER_BASE_URL=https://openrouter.ai/api/v1
OPENROUTER_MAX_TOKENS=1024

# Gemini Configuration (optional fallback)
GEMINI_API_KEY=AIzaSy-xxx
GEMINI_MODEL=gemini-pro
GEMINI_MAX_TOKENS=1024

# OpenAI Configuration (optional fallback)
OPENAI_API_KEY=sk-xxx
OPENAI_MODEL=gpt-4
OPENAI_MAX_TOKENS=1024

# ============================================
# Embedding Configuration
# ============================================
EMBEDDING_PROVIDER=openrouter
EMBEDDING_MODEL=openai/text-embedding-3-small

# ============================================
# LLM Settings
# ============================================
LLM_TEMPERATURE=0.3

# ============================================
# Chunking Configuration (optional)
# ============================================
CHUNK_SIZE=500
CHUNK_OVERLAP=50