# ---- OpenAI ----
OPENAI_API_KEY=sk-...
OPENAI_CHAT_MODEL=gpt-4.1-mini
OPENAI_EMBEDDING_MODEL=text-embedding-3-small
EMBEDDING_DIMENSION=1536

# ---- Tavily (web_search tool) ----
TAVILY_API_KEY=tvly-...

# ---- OpenSearch ----
OPENSEARCH_URL=http://localhost:9200
OPENSEARCH_INDEX=knowledge-base
OPENSEARCH_SEARCH_PIPELINE=hybrid-search-pipeline

# ---- Arize AX tracing ----
# https://app.arize.com/organizations/-/settings/space-api-keys
ARIZE_SPACE_ID=
ARIZE_API_KEY=
ARIZE_PROJECT_NAME=langgraph-opensearch-agent
# Leave blank for the default US collector. For an EU-region space set the
# regional OTLP collector, e.g. https://otlp.eu-west-1a.arize.com/v1
ARIZE_ENDPOINT=