代码片段管理服务

```

{## Connect to the *local* MCP server from within a client/host

  "IsEncrypted": false,

  "Values": {### VS Code - Copilot Edits

    "AzureWebJobsStorage": "UseDevelopmentStorage=true",

    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated"1. **Add MCP Server** from command palette and add URL to your running Function app's MCP endpoint:

  }    ```shell

}    http://localhost:7071/runtime/webhooks/mcp

```    ```

1. **List MCP Servers** from command palette and start the server

### Azure Environment Variables1. In Copilot chat agent mode enter a prompt to trigger the tool, e.g., select some code and enter this prompt

- `AZURE_STORAGE_ACCOUNT_NAME`: Name of the Azure Storage Account

- Managed Identity permissions for Blob Storage access    ```plaintext

    Say Hello 

## Project Structure    ```



```    ```plaintext

src/    Save this snippet as snippet1 

├── Program.cs           # Application entry point    ```

├── SnippetsTool.cs      # Main snippets functionality

├── FunctionsMcpTool.csproj  # Project dependencies    ```plaintext

├── host.json            # Functions host configuration    Retrieve snippet1 and apply to NewFile.cs

└── local.settings.json  # Local development settings    ```

```1. When prompted to run the tool, consent by clicking **Continue**



## Dependencies1. When you're done, press Ctrl+C in the terminal window to stop the `func.exe` host process.



- Microsoft.Azure.Functions.Worker 2.0.0### MCP Inspector

- Azure.Storage.Blobs 12.22.1

- Azure.Identity 1.12.11. In a **new terminal window**, install and run MCP Inspector

- Application Insights for monitoring

    ```shell

## Notes    npx @modelcontextprotocol/inspector node build/index.js

    ```

- All endpoints use `AuthorizationLevel.Anonymous` for easy testing

- Snippets are stored in a `snippets` container in Blob Storage1. CTRL click to load the MCP Inspector web app from the URL displayed by the app (e.g. http://0.0.0.0:5173/#resources)

- Automatic container creation on first use1. Set the transport type to `Streamable HTTP` 

- JSON content type for all snippet data1. Set the URL to your running Function app's MCP endpoint and **Connect**:
    ```shell
    http://0.0.0.0:7071/runtime/webhooks/mcp
    ```
1. **List Tools**.  Click on a tool and **Run Tool**.  

## Verify local blob storage in Azurite

After testing the snippet save functionality locally, you can verify that blobs are being stored correctly in your local Azurite storage emulator.

### Using Azure Storage Explorer

1. Open Azure Storage Explorer
1. In the left panel, expand **Emulator & Attached** → **Storage Accounts** → **(Emulator - Default Ports) (Key)**
1. Navigate to **Blob Containers** → **snippets**
1. You should see any saved snippets as blob files in this container
1. Double-click on any blob to view its contents and verify the snippet data was saved correctly

### Using Azure CLI (Alternative)

If you prefer using the command line, you can also verify blobs using Azure CLI with the storage emulator:

```shell
# List blobs in the snippets container
az storage blob list --container-name snippets --connection-string "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;"

# Download a specific blob to view its contents
az storage blob download --container-name snippets --name <blob-name> --file <local-file-path> --connection-string "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;"

azd up

azd env set VNET_ENABLED true

https://<funcappname>.azurewebsites.net/runtime/webhooks/mcp?code=<your-mcp-extension-system-key>

{
    "inputs": [
        {
            "type": "promptString",
            "id": "functions-mcp-extension-system-key",
            "description": "Azure Functions MCP Extension System Key",
            "password": true
        },
        {
            "type": "promptString",
            "id": "functionapp-name",
            "description": "Azure Functions App Name"
        }
    ],
    "servers": {
        "remote-mcp-function": {
            "type": "http",
            "url": "https://${input:functionapp-name}.azurewebsites.net/runtime/webhooks/mcp",
            "headers": {
                "x-functions-key": "${input:functions-mcp-extension-system-key}"
            }
        },
        "local-mcp-function": {
            "type": "http",
            "url": "http://0.0.0.0:7071/runtime/webhooks/mcp"
        }
    }
}

azd down

[Function(nameof(SayHello))]
public string SayHello(
    [McpToolTrigger(HelloToolName, HelloToolDescription)] ToolInvocationContext context
)
{
    logger.LogInformation("Saying hello");
    return "Hello I am MCP Tool!";
}

[Function(nameof(GetSnippet))]
public object GetSnippet(
    [McpToolTrigger(GetSnippetToolName, GetSnippetToolDescription)] ToolInvocationContext context,
    [BlobInput(BlobPath)] string snippetContent)
{
    return snippetContent;
}

[Function(nameof(SaveSnippet))]
[BlobOutput(BlobPath)]
public string SaveSnippet(
    [McpToolTrigger(SaveSnippetToolName, SaveSnippetToolDescription)] ToolInvocationContext context,
    [McpToolProperty(SnippetNamePropertyName, PropertyType, SnippetNamePropertyDescription)] string name,
    [McpToolProperty(SnippetPropertyName, PropertyType, SnippetPropertyDescription)] string snippet)
{
    return snippet;
}