---
title: "Start here"
description: "Understand Cortavyn's modules and choose the smallest useful dependency set."
---

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

# Start here

Cortavyn is designed as a set of composable artifacts. Applications depend on the capabilities they use; core modules do not depend on provider SDKs.

| Need | Start with |
| --- | --- |
| A portable model contract | `cortavyn-model-api` |
| A tool-using conversation loop | `cortavyn-chat` |
| Durable orchestration | `cortavyn-graph` |
| A workspace-owning agent harness | `cortavyn-deep` |

Continue with the [quickstart](/start-here/quickstart), then explore [Chat](/chat/overview), [Graph](/graph/overview), or [Deep Agent](/deep-agent/overview).

Source: https://docs.cortavyn.org/start-here/overview/index.mdx