PINECONE_API_KEY=your-pinecone-api-key
PINECONE_INDEX_NAME=your-index-name
PINECONE_HOST=https://your-index-host.pinecone.io
PINECONE_NAMESPACE=dev
PINECONE_TEXT_FIELD=chunk_text

# Groq (LLM for /chat)
GROQ_API_KEY=your-groq-api-key
GROQ_BASE_URL=https://api.groq.com/openai/v1
GROQ_MODEL=llama-3.1-8b-instant

# Tavily (optional web search fallback for /chat)
TAVILY_API_KEY=your-tavily-api-key

# Optional: LangSmith / LangChain tracing
LANGCHAIN_TRACING_V2=false
LANGCHAIN_API_KEY=your-langsmith-api-key
LANGCHAIN_PROJECT=rag-agent-workbench

# Optional: basic API protection
# When set, all routers except /health and the OpenAPI/Swagger docs require header X-API-Key.
# In production-like environments (ENV=production or on Hugging Face Spaces), API_KEY must be set.
API_KEY=your-backend-api-key

# Optional: CORS
# Comma-separated list of allowed origins, e.g.
# ALLOWED_ORIGINS=http://localhost:8501,https://your-streamlit-app.streamlit.app
# When unset, defaults to "*".
ALLOWED_ORIGINS=

# Optional: rate limiting and caching toggles
# Set to "false" to disable.
RATE_LIMIT_ENABLED=true
CACHE_ENABLED=true

# Optional: override the default Wikimedia User-Agent string used for Wikipedia requests.
# If not set, a descriptive default is used to comply with Wikimedia API policy.
WIKIMEDIA_USER_AGENT="rag-agent-workbench/0.1 (+https://github.com/..; contact: ..)"
LOG_LEVEL=INFO