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Fixing FoundryToolboxMcp sample to use created toolbox. (#5786)

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Co-authored-by: alliscode <bentho@microsoft.com>
This commit is contained in:
Ben Thomas
2026-05-13 09:53:16 -07:00
committed by GitHub
Unverified
parent 37a043a797
commit bd0d6070f1
2 changed files with 13 additions and 10 deletions
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dotnet/samples/02-agents/AgentsWithFoundry/Agent_Step25_FoundryToolboxMcp/Program.cs
+10 -8
View File
@@ -20,22 +20,18 @@ using OpenAI.Responses;
#pragma warning disable OPENAI001 // Experimental API
#pragma warning disable AAIP001 // AgentToolboxes is experimental
// Must match the `<name>` segment of FOUNDRY_TOOLBOX_ENDPOINT.
// Name of the toolbox to create and connect to.
const string ToolboxName = "research_toolbox";
const string Query = "What tools do you have access to?";
string endpoint = Environment.GetEnvironmentVariable("AZURE_AI_PROJECT_ENDPOINT")
?? throw new InvalidOperationException("AZURE_AI_PROJECT_ENDPOINT is not set.");
string deploymentName = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYMENT_NAME") ?? "gpt-5.4-mini";
string toolboxEndpoint = Environment.GetEnvironmentVariable("FOUNDRY_TOOLBOX_ENDPOINT")
?? throw new InvalidOperationException(
"FOUNDRY_TOOLBOX_ENDPOINT is not set. Example: " +
"https://<account>.services.ai.azure.com/api/projects/<project>/toolsets/<name>/mcp?api-version=2025-05-01-preview");
TokenCredential credential = new DefaultAzureCredential();
// Comment out if the toolbox already exists in your Foundry project.
await CreateSampleToolboxAsync(ToolboxName, endpoint, credential);
var toolboxEndpoint = await CreateSampleToolboxAsync(ToolboxName, endpoint, credential);
// Inject a fresh Azure AI bearer token on every MCP request.
using var httpClient = new HttpClient(new BearerTokenHandler(credential, "https://ai.azure.com/.default")
@@ -51,6 +47,11 @@ await using McpClient mcpClient = await McpClient.CreateAsync(
{
Endpoint = new Uri(toolboxEndpoint),
Name = "foundry_toolbox",
TransportMode = HttpTransportMode.StreamableHttp,
AdditionalHeaders = new Dictionary<string, string>
{
["Foundry-Features"] = "Toolboxes=V1Preview",
},
},
httpClient));
@@ -74,7 +75,7 @@ Console.WriteLine($"Assistant: {await agent.RunAsync(Query)}");
// ---------------------------------------------------------------------------
// Helper: create (or replace) a sample toolbox so the sample runs end-to-end
// ---------------------------------------------------------------------------
static async Task CreateSampleToolboxAsync(string name, string endpoint, TokenCredential credential)
static async Task<string> CreateSampleToolboxAsync(string name, string endpoint, TokenCredential credential)
{
// Toolboxes are normally configured in the Foundry portal or a deployment
// script, not the application itself. This helper exists so the sample can
@@ -103,12 +104,13 @@ static async Task CreateSampleToolboxAsync(string name, string endpoint, TokenCr
serverUri: new Uri("https://gitmcp.io/Azure/azure-rest-api-specs"),
toolCallApprovalPolicy: new McpToolCallApprovalPolicy(GlobalMcpToolCallApprovalPolicy.NeverRequireApproval)));
var created = (await toolboxClient.CreateToolboxVersionAsync(
ToolboxVersion created = (await toolboxClient.CreateToolboxVersionAsync(
name: name,
tools: [mcpTool],
description: "Sample toolbox with an MCP tool — created by Agent_Step25 sample.")).Value;
Console.WriteLine($"Created toolbox '{created.Name}' v{created.Version} ({created.Tools.Count} tool(s))");
return $"{endpoint}/toolboxes/{created.Name}/mcp?api-version=v{created.Version}";
}
// ---------------------------------------------------------------------------
dotnet/samples/02-agents/AgentsWithFoundry/Agent_Step25_FoundryToolboxMcp/README.md
+3 -2
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@@ -19,10 +19,11 @@ Set the following environment variables:
```powershell
$env:AZURE_AI_PROJECT_ENDPOINT="https://your-foundry-service.services.ai.azure.com/api/projects/your-foundry-project"
$env:AZURE_AI_MODEL_DEPLOYMENT_NAME="gpt-5.4-mini"
$env:FOUNDRY_TOOLBOX_ENDPOINT="https://your-foundry-service.services.ai.azure.com/api/projects/your-foundry-project/toolsets/research_toolbox/mcp?api-version=2025-05-01-preview"
```
The `<name>` segment of `FOUNDRY_TOOLBOX_ENDPOINT` must match the `ToolboxName` constant in `Program.cs`.
The sample creates a toolbox named `research_toolbox` in your Foundry project on
startup, then connects to its MCP endpoint at
`{AZURE_AI_PROJECT_ENDPOINT}/toolboxes/research_toolbox/mcp?api-version=v{version}`.
## Run the sample