> ## Documentation Index
> Fetch the complete documentation index at: https://productbrain.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Terminology

> Short glossary with links.

<Warning>
  **Early access** — [**Join the Product Brain Community**](https://community.productbrain.io).
</Warning>

* **Chain** — [The Chain](/docs/the-chain)
* **Loop** — [The Loop](/docs/method/overview)
* **Brain Chat** — [Brain Chat](/docs/working-in-the-app/brain-chat)
* **Orient / Capture / Session** — [Core concepts](/docs/core-concepts)