README.md

checkpoint-allowlist

Shows how to silence langgraph's Deserializing unregistered type warning by declaring custom types in langgraph.json's serde.allowed_msgpack_modules block.

Graph: START -> evaluate -> finalize -> END. State carries a custom Pydantic Score value, which langgraph reconstructs on every checkpoint round-trip.

Run

uv sync
uv run uipath init
uv run uipath run agent --file input.json

Expect: agent completes, no Deserializing unregistered type ...Score warning. Remove the serde block from langgraph.json to see the warning return.