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

# Concepts

Core ideas behind Contree MCP.

<Columns cols={2}>
  <Card title="Core Concepts" href="./core" icon="layer-group" />

  <Card title="Workflows" href="./workflows" icon="diagram-project" />
</Columns>

## Overview

| Concept       | Description                                 |
| ------------- | ------------------------------------------- |
| **Core**      | Execution model, images, lineage, isolation |
| **Workflows** | File sync (rsync), async execution          |

## Quick Mental Model

```mermaid theme={null}
flowchart LR
    A[import_image] --> B[Base Image]
    B --> C[run<br/>disposable=false]
    C --> D[Child Image]
    D --> E[Another run]
    B --> F[Different branch]
```

Every image is immutable. `disposable=false` creates a new child image. Navigate and rollback using any ancestor UUID.