index

---
social:
  title: Files and Resources
  tagline: Attach files, MCP resources, and prompt files directly to agent conversations.
  description: Attach files, MCP resources, and prompt files directly to agent conversations.
  alt: fast-agent social card — Files and Resources
---

# Files and Resources

## Attaching Files

You can include files in a conversation using Paths:

```python
from fast_agent import Prompt
from pathlib import Path

plans = await agent.send(Prompt.user("Summarise this PDF", Path("secret-plans.pdf")))
```

This works for any mime type that can be tokenized by the model.

## MCP Resources

MCP Server resources can be conveniently included in a message with:

```python
description = await agent.with_resource(
    "What is in this image?",
    "resource://images/cat.png",
    "mcp_image_server",
)
```

## Prompt Files

Prompt Files can include Resources:

```md title="agent_script.txt"
---USER
Please extract the major colours from this CSS file:
---RESOURCE
index.css
```

They can be loaded with `fast_agent.load_prompt`, or exposed by an external MCP prompt server.