Python: Add sample for hosted agent with files

python/samples/04-hosting/foundry-hosted-agents/README.md

@@ -13,7 +13,8 @@ This directory contains samples that demonstrate how to use hosted [Agent Framew
 | 3 | [MCP](responses/03_mcp/) | An agent connected to a remote MCP server (GitHub), demonstrating external MCP tool provider integration. |
 | 4 | [Foundry Toolbox](responses/04_foundry_toolbox/) | An agent using Azure Foundry Toolbox, demonstrating toolbox provisioning and querying available tools at runtime. |
 | 5 | [Workflows](responses/05_workflows/) | An agent with a multi-step orchestrated workflow, demonstrating chaining prompts through an orchestrated flow. |
-| 6 | [Using deployed agent](responses/using_deployed_agent.py) | A sample demonstrating how to invoke an agent that has already been deployed to Foundry, showing how to interact with a hosted agent in code. |
+| 6 | [Files](responses/06_files/) | An agent demonstrating how to work with files in a hosted agent session, including uploading files to a hosted agent session and having the agent read and manipulate those files at runtime. |
+| 7 | [Using deployed agent](responses/using_deployed_agent.py) | A sample demonstrating how to invoke an agent that has already been deployed to Foundry, showing how to interact with a hosted agent in code. |
 
 ### Invocations API
 

python/samples/04-hosting/foundry-hosted-agents/responses/01_basic/README.md

@@ -14,6 +14,10 @@ See [main.py](main.py) for the full implementation.
 
 The agent is hosted using the [Agent Framework](https://github.com/microsoft/agent-framework) with the `ResponsesHostServer`, which provisions a REST API endpoint compatible with the OpenAI Responses protocol.
 
+## Running the Agent Host
+
+Follow the instructions in the [Running the Agent Host Locally](../../README.md#running-the-agent-host-locally) section of the README in the parent directory to run the agent host.
+
 ## Interacting with the agent
 
 > Depending on how you run the agent host, you can invoke the agent using `curl` (`Invoke-WebRequest` in PowerShell) or `azd`. Please refer to the [parent README](../../README.md) for more details. Use this README for sample queries you can send to the agent.

python/samples/04-hosting/foundry-hosted-agents/responses/01_basic/agent.yaml

@@ -6,4 +6,7 @@ protocols:
     version: 1.0.0
 resources:
   cpu: '0.25'
-  memory: '0.5Gi'
+  memory: '0.5Gi'
+environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}

python/samples/04-hosting/foundry-hosted-agents/responses/02_tools/agent.yaml

@@ -5,4 +5,7 @@ protocols:
     version: 1.0.0
 resources:
   cpu: "0.25"
-  memory: 0.5Gi
+  memory: 0.5Gi
+environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}

python/samples/04-hosting/foundry-hosted-agents/responses/02_tools/main.py

@@ -25,7 +25,7 @@ def get_weather(
     return f"The weather in {location} is {conditions[randint(0, 3)]} with a high of {randint(10, 30)}°C."
 
 
-@tool(approval_mode="always_require")
+@tool(approval_mode="never_require")
 def run_bash(command: str) -> str:
     """Execute a shell command locally and return stdout, stderr, and exit code."""
     try:

python/samples/04-hosting/foundry-hosted-agents/responses/03_mcp/agent.yaml

@@ -7,5 +7,7 @@ resources:
   cpu: "0.25"
   memory: 0.5Gi
 environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}
   - name: GITHUB_PAT
     value: ${GITHUB_PAT}

python/samples/04-hosting/foundry-hosted-agents/responses/04_foundry_toolbox/README.md

@@ -16,8 +16,6 @@ You can also create a Foundry Toolbox in the Foundry portal. Read more about it
 
 The agent uses `FoundryChatClient` from the Agent Framework to create an OpenAI-compatible Responses client. It loads a named Foundry Toolbox via `client.get_toolbox(name)` — the toolbox is a server-side bundle of tool configurations (e.g., `code_interpreter`, `web_search`) defined in the Foundry portal or by `azd provision`. Omitting `version` resolves the toolbox's current default version at runtime.
 
-The sample then narrows the toolbox to a subset of tool types via `select_toolbox_tools(toolbox, include_types=[...])` before handing it to the agent. This demonstrates how one toolbox can be reused across agents that each expose only the tools they need — here, the agent only sees `code_interpreter` even though the toolbox also includes `web_search`.
-
 See [main.py](main.py) for the full implementation.
 
 ### Agent Hosting
@@ -28,6 +26,18 @@ The agent is hosted using the [Agent Framework](https://github.com/microsoft/age
 
 Follow the instructions in the [Running the Agent Host Locally](../../README.md#running-the-agent-host-locally) section of the README in the parent directory to run the agent host.
 
+An extra environment variable `TOOLBOX_NAME` must be set to the name of the Foundry Toolbox that the agent should load at runtime. This allows the agent host to dynamically retrieve the correct toolbox from Foundry when it starts. Run the following:
+
+```bash
+export TOOLBOX_NAME="<your-toolbox-name>"
+```
+
+Or in PowerShell:
+
+```powershell
+$env:TOOLBOX_NAME="<your-toolbox-name>"
+```
+
 ## Interacting with the agent
 
 > Depending on how you run the agent host, you can invoke the agent using `curl` (`Invoke-WebRequest` in PowerShell) or `azd`. Please refer to the [parent README](../../README.md) for more details. Use this README for sample queries you can send to the agent.

python/samples/04-hosting/foundry-hosted-agents/responses/04_foundry_toolbox/agent.yaml

@@ -5,4 +5,9 @@ protocols:
     version: 1.0.0
 resources:
   cpu: "0.25"
-  memory: 0.5Gi
+  memory: 0.5Gi
+environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}
+  - name: TOOLBOX_NAME
+    value: "agent-tools"

python/samples/04-hosting/foundry-hosted-agents/responses/05_workflows/agent.yaml

@@ -5,4 +5,7 @@ protocols:
     version: 1.0.0
 resources:
   cpu: "0.25"
-  memory: 0.5Gi
+  memory: 0.5Gi
+environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/.dockerignore

@@ -0,0 +1,9 @@
+.venv
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+
+# Local-only client tooling and sample data; not needed inside the agent image.
+resources/

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/.env.example

@@ -0,0 +1,3 @@
+FOUNDRY_PROJECT_ENDPOINT="..."
+AZURE_AI_MODEL_DEPLOYMENT_NAME="..."
+TOOLBOX_NAME="..."

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY . user_agent/
+WORKDIR /app/user_agent
+
+RUN if [ -f requirements.txt ]; then \
+        pip install -r requirements.txt; \
+    else \
+        echo "No requirements.txt found"; \
+    fi
+
+EXPOSE 8088
+
+CMD ["python", "main.py"]

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/README.md

@@ -0,0 +1,115 @@
+# What this sample demonstrates
+
+An [Agent Framework](https://github.com/microsoft/agent-framework) agent that uses a local shell tool and a code interpreter tool for working with files, and hosted using the **Responses protocol**.
+
+## How It Works
+
+### Model Integration
+
+The agent uses `FoundryChatClient` from the Agent Framework to create a Responses client from the project endpoint and model deployment. The agent supports both streaming (SSE events) and non-streaming (JSON) response modes.
+
+See [main.py](main.py) for the full implementation.
+
+### Agent Hosting
+
+The agent is hosted using the [Agent Framework](https://github.com/microsoft/agent-framework) with the `ResponsesHostServer`, which provisions a REST API endpoint compatible with the OpenAI Responses protocol.
+
+### Tools
+
+This agent uses four tools:
+
+1. **Get Current Working Directory Tool (`get_cwd`)** – Returns the current working directory of the agent host process.
+2. **List Files Tool (`list_files`)** – Lists the files in a specified directory.
+3. **Read File Tool (`read_file`)** – Reads the contents of a specified file.
+4. **Code Interpreter Tool (`code_interpreter`)** – Allows the agent to execute Python code in a safe.
+
+> In this sample, the filesystem tools are function tools defined in Python using the `@tool` decorator from the Agent Framework. The code interpreter tool is a managed tool provided by [Foundry Toolbox](https://learn.microsoft.com/en-us/azure/foundry/agents/how-to/tools/toolbox). Learn more about foundry toolbox integration with hosted agents with this [sample](../04_foundry_toolbox/).
+
+## Running the Agent Host
+
+Follow the instructions in the [Running the Agent Host Locally](../../README.md#running-the-agent-host-locally) section of the README in the parent directory to run the agent host.
+
+An extra environment variable `TOOLBOX_NAME` must be set to the name of the Foundry Toolbox that the agent should load at runtime. This allows the agent host to dynamically retrieve the correct toolbox from Foundry when it starts. Run the following:
+
+```bash
+export TOOLBOX_NAME="<your-toolbox-name>"
+```
+
+Or in PowerShell:
+
+```powershell
+$env:TOOLBOX_NAME="<your-toolbox-name>"
+```
+
+## Interacting with the agent
+
+> Depending on how you run the agent host, you can invoke the agent using `curl` (`Invoke-WebRequest` in PowerShell) or `azd`. Please refer to the [parent README](../../README.md) for more details. Use this README for sample queries you can send to the agent.
+
+Send a POST request to the server with a JSON body containing an `"input"` field to interact with the agent. For example:
+
+```bash
+curl -X POST http://localhost:8088/responses -H "Content-Type: application/json" -d '{"input": "Find the quarterly report under `{cwd}/resources` and tell me the difference of revenue between q1 2026 and q1 2025?"}'
+```
+
+> When ruuning locally, it runs within the project directory, which contains the entire sample, so the `{cwd}/resources` path in the query above will allow the agent to locate the `resources` folder included with this sample and read the `contoso_q1_2026_report.txt` file from that folder.
+
+The server will respond with a JSON object containing the response text and a response ID. You can use this response ID to continue the conversation in subsequent requests.
+
+## Deploying the Agent to Foundry
+
+To host the agent on Foundry, follow the instructions in the [Deploying the Agent to Foundry](../../README.md#deploying-the-agent-to-foundry) section of the README in the parent directory.
+
+## Uploading a file to a session
+
+Deploying the agent won't automatically upload the files included with this sample to Foundry. To make these files available to the agent at runtime, you must upload them to a [hosted agent session](https://learn.microsoft.com/azure/foundry/agents/how-to/manage-hosted-sessions). Files are tied to a specific hosted agent session, so each time you start a new session you will need to upload the files again if the agent needs access to them during that session.
+
+After you deploy the agent to Foundry, you have two ways to interact with the agent:
+
+1. Using `azd ai agent invoke`.
+2. Through the Foundry portal.
+
+### Using `azd ai agent invoke`
+
+After successfully deploying the agent to Foundry, run the following command:
+
+> You must remain in the directory where your `azd` project is initialized so that the CLI can locate the deployed agent configuration.
+
+```bash
+azd ai agent invoke "Hi!"
+```
+
+The command will invoke the agent and the server will create a new session if one does not already exist for this interaction, returning the agent's response from the hosted agent session. Run the following if you want to force a new session:
+
+```bash
+azd ai agent invoke --new-session "Hi!"
+```
+
+Run the following command to upload a file to the hosted agent session:
+
+```bash
+azd ai agent files upload -f <path-to-contoso_q1_2026_report.txt>
+```
+
+> The above command will automatically detect the last active session and upload the file to that session without requiring you to explicitly provide a session ID. It is also possible to specify a particular session ID to upload the file to a specific hosted agent session by using the `--session-id` flag. Run `azd ai agent files upload -h` to see the full list of options and flags available for the `upload` command.
+
+Once the file is uploaded to the hosted agent session, the agent will be able to access it during that session and use it to respond to queries that reference the uploaded file.
+
+Invoke the agent again with a query that references the uploaded file to see how it can now use the file in its responses. For example:
+
+```bash
+azd ai agent invoke "Find the quarterly report under the home directory and tell me the difference of revenue between q1 2026 and q1 2025?"
+```
+
+### Using the Foundry Portal
+
+Similar to using the `azd` CLI, you must invoke the agent first to create a session:
+
+![alt text](./resources/start-a-session.png)
+
+Once the session is created, you can grab the session ID and use `azd ai agent files upload --session-id <session-id>` to upload files to that specific hosted agent session.
+
+![alt text](./resources/session-started.png)
+
+Or you can upload files directly through the Foundry portal by navigating to Files tab in the agent playground:
+
+![alt text](./resources/file-upload-portal.png)

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/agent.manifest.yaml

@@ -0,0 +1,32 @@
+name: agent-framework-agent-files-responses
+description: >
+  An Agent Framework agent that can work with files hosted by Foundry.
+metadata:
+  tags:
+    - Agent Framework
+    - AI Agent Hosting
+    - Azure AI AgentServer
+    - Responses Protocol
+    - Streaming
+template:
+  name: agent-framework-agent-files-responses
+  kind: hosted
+  protocols:
+    - protocol: responses
+      version: 1.0.0
+  environment_variables:
+    - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+      value: "{{AZURE_AI_MODEL_DEPLOYMENT_NAME}}"
+    - name: TOOLBOX_NAME
+      value: "agent-tools"
+resources:
+  - kind: model
+    id: gpt-4.1-mini
+    name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+  - kind: toolbox
+    name: agent-tools
+    tools:
+      - type: web_search
+        name: web_search
+      - type: code_interpreter
+        name: code_interpreter

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/agent.yaml

@@ -0,0 +1,12 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/microsoft/AgentSchema/refs/heads/main/schemas/v1.0/ContainerAgent.yaml
+kind: hosted
+name: agent-framework-agent-files-responses
+protocols:
+  - protocol: responses
+    version: 1.0.0
+resources:
+  cpu: '0.25'
+  memory: '0.5Gi'
+environment_variables:
+  - name: AZURE_AI_MODEL_DEPLOYMENT_NAME
+    value: ${AZURE_AI_MODEL_DEPLOYMENT_NAME}

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/main.py

@@ -0,0 +1,83 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+import asyncio
+import os
+
+from agent_framework import Agent, tool
+from agent_framework.foundry import FoundryChatClient
+from agent_framework_foundry import select_toolbox_tools
+from agent_framework_foundry_hosting import ResponsesHostServer
+from azure.identity import DefaultAzureCredential
+from dotenv import load_dotenv
+
+# Load environment variables from .env file
+load_dotenv()
+
+
+@tool(description="Get the current working directory.", approval_mode="never_require")
+def get_cwd() -> str:
+    """Get the current working directory."""
+    try:
+        return os.getcwd()
+    except Exception as e:
+        return f"Error getting current working directory: {e}"
+
+
+@tool(description="List files in a directory.", approval_mode="never_require")
+def list_files(directory: str) -> list[str]:
+    """List files in a directory."""
+    try:
+        return os.listdir(directory)
+    except Exception as e:
+        return [f"Error listing files in {directory}: {e}"]
+
+
+@tool(description="Read the contents of a file.", approval_mode="never_require")
+def read_file(file_path: str) -> str:
+    """Read the contents of a file."""
+    try:
+        with open(file_path) as f:
+            return f.read()
+    except Exception as e:
+        return f"Error reading file {file_path}: {e}"
+
+
+async def main():
+    client = FoundryChatClient(
+        project_endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"],
+        model=os.environ["AZURE_AI_MODEL_DEPLOYMENT_NAME"],
+        credential=DefaultAzureCredential(),
+    )
+
+    # Load the named toolbox from the Foundry project. Omitting `version`
+    # resolves the toolbox's current default version at runtime.
+    toolbox = await client.get_toolbox(os.environ["TOOLBOX_NAME"])
+    # The toolbox deployed has two tools: (see agent.manifest.yaml)
+    # - `code_interpreter`
+    # - `web_search`
+    # We only need the `code_interpreter` tool for this sample
+    selected_tools = select_toolbox_tools(
+        toolbox,
+        include_names=["code_interpreter"],
+    )
+
+    agent = Agent(
+        client=client,
+        instructions=(
+            "You are a friendly assistant. Keep your answers brief. "
+            "Make sure all mathematical calculations are performed using the code interpreter "
+            "instead of mental arithmetic."
+        ),
+        tools=[get_cwd, list_files, read_file] + selected_tools,
+        # History will be managed by the hosting infrastructure, thus there
+        # is no need to store history by the service. Learn more at:
+        # https://developers.openai.com/api/reference/resources/responses/methods/create
+        default_options={"store": False},
+    )
+
+    server = ResponsesHostServer(agent)
+    await server.run_async()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

python/samples/04-hosting/foundry-hosted-agents/responses/06_files/requirements.txt

@@ -0,0 +1,2 @@
+agent-framework
+agent-framework-foundry-hosting