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

# Variables

> Manage and use variables to store and pass data in the Canvas feature of Convocore.

**Variables** allow you to store and pass data across nodes in your flow. They can be created or edited using any **Tool Drawer** or **Variable Drawer**, or selected directly in the **Text Editor** using the `{` shortcut.

***

## Adding Variables

1. Open the **Variable Drawer** in any tool or node.
2. Click **Add Variable** and configure:
   * **Key**: Unique identifier for the variable.
   * **Default Value**: Initial value if no input is provided.
   * **Type**: Select data type (e.g., string, number).
   * **Description**: Provide a brief explanation of the variable’s purpose.
   * **Required**: Toggle if the variable must always be set.

***

### Using Variables in Text Editor

Variables can also be referenced directly in the **Text Editor**:

1. Open the **Text Editor** in the node settings.
2. Type `{` to open the dropdown of available variables.
3. Select the variable to insert it into the text.

**Example**:

```plaintext theme={null}
Hello, {user_name}! How can I assist you today?
```

*Visual Placeholder*:

<iframe width="560" height="315" src="https://www.youtube.com/embed/DFxLsALToJc?si=7xilKwgN402AvVs2" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen />

***

## Editing Variables

* Open the Variable Drawer to adjust existing variables.
* Update values, keys, or descriptions directly.

***

## Global Variables

* Mark variables as **Global** to make them accessible across all nodes.

***

## Best Practices

* Use consistent naming conventions for variables.
* Avoid redundant variables to simplify debugging.
* Leverage global variables for shared data.