> ## Documentation Index
> Fetch the complete documentation index at: https://noesis-32c1d602-cursor-technical-documentation-improvements.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# LangGraph Episode: Trace the Cognitive Loop

> Run a LangGraph agent with Noesis and capture cognitive artifacts.

This tutorial runs a LangGraph plan→act agent under Noesis and captures the cognitive artifacts. Governance is **off** in this demo; the focus is traceability and verification.

**Why this matters:** after one run you have a sealed evidence bundle you can diff and audit.

## What you'll build

* A LangGraph-backed cognitive run (observe → plan → act → reflect → learn)
* Workspace verification (`verify`) and immutable artifacts
* A clean episode you can inspect with `noesis view`

## Prerequisites

* Python with `noesis` installed
* LangGraph installed (`uv add langgraph` or `pip install langgraph`)
* OpenAI API key (for the planner/actor)

## Run the tutorial

```bash theme={null}
uv run python -m tutorials.langgraph_episode
```

## Source

The source file is located at `examples/noesis-quickstart/tutorials/langgraph_episode.py`.