# Agent runtime: Gradio + LangGraph agent (no embedding model by default)
anyio>=4.12.0
certifi>=2025.11.12
h11>=0.16.0
httpcore>=1.0.9
httpx>=0.28.1
idna>=3.11
sniffio>=1.3.0

pydantic>=2.7,<3
pydantic-settings
pydantic_core>=2.41.0
typing_extensions>=4.15.0

# Gradio UI
gradio>=5.50.0
python-multipart>=0.0.21
aiofiles>=24.1.0

# LangChain agent framework
langchain-core>=0.3
langchain-openai>=0.3
langgraph>=0.2
langgraph-checkpoint-postgres

# OpenAI SDK (explicit — needed by langchain-openai)
openai>=1.0.0

# Document parsing (uploaded files)
pdfplumber
openpyxl

# DB for LangGraph checkpoint persistence (langgraph-checkpoint-postgres uses psycopg v3)
psycopg2-binary
psycopg>=3.1

# Retry/utility
tenacity>=8.0.0
requests>=2.32.0