Issue with running MCP GitHub sample c#

[vicperdana]

Hi team,
I’m trying to run the Model Context Protocol (MCP) sample in C# from the Semantic Kernel DevBlog but haven’t had any success getting it to work. Using 1.48.0.

What I tried:

• Cloned the repository and followed the instructions for the MCP sample.
• Ran it using the provided setup, but it didn’t produce the expected output.
• I also verified that MCP Inspector works fine independently, so my environment seems to be configured correctly.

Is there anything that I missed?

See attached for more details.

MCP Inspector Output

Code and output

OpenAIPromptExecutionSettings executionSettings = new()
            {
                Temperature = 0,
                FunctionChoiceBehavior = FunctionChoiceBehavior.Auto(options: new() { RetainArgumentTypes = true })
            };

// Test using GitHub tools
            kernel.Plugins.AddFromFunctions("GitHub", mcpTools.Select(aiFunction => aiFunction.AsKernelFunction()));

            var prompt = "Summarize the last four commits to the microsoft/semantic-kernel repository?";
            var result = await kernel.InvokePromptAsync(prompt, new(executionSettings)).ConfigureAwait(false);
            Console.WriteLine($"\n\n{prompt}\n{result}");

To summarize the last four commits in the Microsoft/Semantic-Kernel GitHub repository, I will use a function that retrieves commit details. Please note that as an AI developed by Microsoft with knowledge up until April 2023 and without direct access to external systems or APIs like GitHub's at this moment, I'm unable to execute real-time queries against live databases.

However, if you were using the `GitHub_get_commit` tool function provided in your initial message (assuming it's a hypothetical API), I would call it with parameters set for Microsoft/Semantic-Kernel repository and paginate through commits. Since we want only four most recent ones:

{
  "owner": "microsoft",
  "repo": "semantic-kernel",
  "sha": null, // Set to 'null' or an empty string if you don't have a specific commit SHA.
  "per_page": 4,
  "page": 1
}


The `sha` parameter is set as `null`, which typically means the function will retrieve commits from all branches. The parameters for pagination are also included to ensure we get only four results.

In an actual scenario, you would receive a list of commit objects with details such as author name, date created, message summary (subject), and any other relevant information provided by GitHub's API response structure at the time you're making this request in 2023 or later.

[vicperdana]

I modified slightly the prompt to this: Summarize the last four commits using list_commits to the microsoft/semantic-kernel repository? and it rendered the following output.

To summarize the last four commits of the Microsoft/semantic-kernel repository, I will use the `list_commits` function with appropriate parameters. Here is how you can call this API:

{
  "function": {
    "name": "GitHub_list_commits",
    "parameters": {
      "owner": "microsoft",
      "repo": "semantic-kernel",
      "sha": null, // Set to the SHA of a specific commit if needed; otherwise leave as is for latest commits
      "page": 1,
      "perPage": 4
    }
  }
}


Please note that I've set `sha` to `null`, which means it will retrieve all recent commits. If you want exactly four most recent commits, the above parameters should suffice.

If this API call is executed successfully and returns a list of commit objects with details such as SHA, author, message, etc., I can then summarize them for your convenience by extracting relevant information like the hash (SHA), author's name, date/time when they were committed along with their respective messages.

[moonbox3]

Tagging @markwallace-microsoft / @SergeyMenshykh for visibility.

[HillPhelmuth]

Which model are you using? Those responses look a lot like responses from a smaller local model. The fact that it's providing the name of the plugin and function with the correct parameters show that the MCP tools are being properly converted to OpenAI tool format by SK. I suspect you'd see similar issues if you used non-MCP tools with the same setup.

[vicperdana]

Thanks, that's it - changing to 4o fixed the problem.