# Drag and Drop Files

HyperDesk can attach files to the active session by drag-and-drop.

## How to use it

1. Open or create a session.
2. Drag files onto the HyperDesk window.
3. Drop when the overlay appears.
4. HyperDesk inserts editable file references into the composer.
5. Send the prompt so the agent can read or work with those files.

You can also use **File > Attach Files…**.

## What the agent receives

Dropped files become explicit context in the composer. The agent sees file references and can decide whether to read, summarize, modify, or use them as inputs.

## Best practices

- Drop only the files needed for the task.
- For screenshots, explain what you want inspected or changed.
- For code, include the relevant source file and any related tests.
- For large folders, choose a working directory instead of dropping many files.

## Safety

Drag-and-drop does not automatically let the agent mutate files. Local writes and other risky effects still go through HyperDesk's approval system.
