41 lines
1.6 KiB
C#
41 lines
1.6 KiB
C#
using ModelContextProtocol.Protocol;
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using ModelContextProtocol.Server;
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using System.ComponentModel;
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namespace TestServerWithHosting.Tools;
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/// <summary>
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/// This tool uses depenency injection and async method
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/// </summary>
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[McpServerToolType]
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public sealed class SampleLlmTool
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{
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[McpServerTool(Name = "sampleLLM"), Description("Samples from an LLM using MCP's sampling feature")]
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public static async Task<string> SampleLLM(
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McpServer thisServer,
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[Description("The prompt to send to the LLM")] string prompt,
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[Description("Maximum number of tokens to generate")] int maxTokens,
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CancellationToken cancellationToken)
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{
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var samplingParams = CreateRequestSamplingParams(prompt ?? string.Empty, "sampleLLM", maxTokens);
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var sampleResult = await thisServer.SampleAsync(samplingParams, cancellationToken);
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return $"LLM sampling result: {sampleResult.Content.OfType<TextContentBlock>().FirstOrDefault()?.Text}";
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}
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private static CreateMessageRequestParams CreateRequestSamplingParams(string context, string uri, int maxTokens = 100)
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{
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return new CreateMessageRequestParams
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{
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Messages = [new SamplingMessage
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{
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Role = Role.User,
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Content = [new TextContentBlock { Text = $"Resource {uri} context: {context}" }],
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}],
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SystemPrompt = "You are a helpful test server.",
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MaxTokens = maxTokens,
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Temperature = 0.7f,
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IncludeContext = ContextInclusion.ThisServer
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};
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}
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}
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