eqty-lineage

Workspace of EQTY lineage integrations, published to pypi.eqtylab.io. Each integration lives under packages/ as its own distribution sharing the eqty_lineage import namespace:

Package	Import	Purpose
eqty-lineage-langchain	eqty_lineage.langchain	Callback handler registering LangChain/LangGraph runs as EQTY lineage
eqty-lineage-deepagents	eqty_lineage.deepagents	The same, extended with a deep agent's filesystem, plan, subagents and skills
eqty-lineage-vnim	eqty_lineage.vnim	ChatOpenAI implementation for working with LLMs in EQTY vNIM

Future integrations (e.g. eqty-lineage-mcp, eqty-lineage-llamaindex) follow the same pattern. Because eqty_lineage is an implicit namespace package, no package may ship an eqty_lineage/__init__.py.

Usage

from eqty_lineage.langchain import EqtyCallbackHandler

app.invoke(state, config={"callbacks": [EqtyCallbackHandler()]})

Each package documents its own usage and demos. For LangChain and LangGraph, see packages/eqty-lineage-langchain, which includes a before/after lineage comparison you can run with just langchain-diff-demo. For DeepAgents, see packages/eqty-lineage-deepagents and just deepagents-demo, plus a survey of the upstream DeepAgents examples showing how to instrument each one.

For a browser chat example around the LangChain travel agent, run:

OPENAI_API_KEY=... uv run python examples/langchain/travel_chat_ui.py

For a local EQTY VNIM tunnel at 127.0.0.1:8000, run the interactive chat example:

uv run python examples/langchain/eqty_vnim_agent.py

Develop

just sync     # install the workspace + dev deps into .venv
just build    # build wheel + sdist for all packages into ./dist
just publish  # upload ./dist to pypi.eqtylab.io (uv publish --index eqty)
just clean    # remove ./dist

eqty-sdk resolves from the eqty index configured in pyproject.toml, not public PyPI.