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using System.ComponentModel;
using ModelContextProtocol;
using ModelContextProtocol.Protocol;
using ModelContextProtocol.Server;
#pragma warning disable MCP9005 // The frozen alpha conformance fixture deliberately probes the legacy sampling capability.
namespace Agent.Mcp.TestHost;
[McpServerToolType]
public sealed class ConformanceTools
{
[McpServerTool(Name = "test_missing_capability")]
[Description("Conformance-only sampling capability probe.")]
public async Task<string> TestMissingCapability(McpServer server, CancellationToken cancellationToken)
{
await server.SampleAsync(new CreateMessageRequestParams
{
MaxTokens = 1,
Messages = [new SamplingMessage { Role = Role.User, Content = [new TextContentBlock { Text = "probe" }] }]
}, cancellationToken).ConfigureAwait(false);
return "sampled";
}
[McpServerTool(Name = "test_streaming_elicitation")]
[Description("Conformance-only response-stream framing probe.")]
public string TestStreamingElicitation() => "stream complete";
[McpServerTool(Name = "test_logging_tool")]
[Description("Conformance-only request log-level probe.")]
public string TestLoggingTool() => "no request-scoped log emitted";
[McpServerTool(Name = "confirm_delete")]
[Description("Conformance-only elicitation task fixture.")]
public string ConfirmDelete(RequestContext<CallToolRequestParams> context, string filename)
{
if (context.Params?.InputResponses?.Count > 0) return $"delete {filename}: accepted";
throw new InputRequiredException(new Dictionary<string, InputRequest>
{
["confirm-delete"] = Elicitation($"Confirm deletion of {filename}", "confirm", new ElicitRequestParams.BooleanSchema())
}, "confirm-delete");
}
[McpServerTool(Name = "multi_input")]
[Description("Conformance-only multiple elicitation task fixture.")]
public string MultiInput(RequestContext<CallToolRequestParams> context)
{
if (context.Params?.InputResponses?.Count >= 2) return "both inputs received";
throw new InputRequiredException(new Dictionary<string, InputRequest>
{
["first"] = Elicitation("First confirmation", "confirm", new ElicitRequestParams.BooleanSchema()),
["second"] = Elicitation("Second confirmation", "confirm", new ElicitRequestParams.BooleanSchema())
}, "multi-input");
}
[McpServerTool(Name = "test_tool_with_task")]
[Description("Conformance-only MRTR and Tasks composition fixture.")]
public string TestToolWithTask(RequestContext<CallToolRequestParams> context)
{
if (context.Params?.InputResponses is { Count: > 0 } responses)
{
string response = System.Text.Json.JsonSerializer.Serialize(responses);
return response.Contains("Alice", StringComparison.Ordinal) ? "Hello, Alice" : "Hello, user";
}
throw new InputRequiredException(new Dictionary<string, InputRequest>
{
["user-name"] = Elicitation("Provide a user name", "name", new ElicitRequestParams.StringSchema())
}, "user-name");
}
private static InputRequest Elicitation(string message, string propertyName, ElicitRequestParams.PrimitiveSchemaDefinition schema) =>
InputRequest.ForElicitation(new ElicitRequestParams
{
Mode = "form",
Message = message,
RequestedSchema = new ElicitRequestParams.RequestSchema
{
Properties = new Dictionary<string, ElicitRequestParams.PrimitiveSchemaDefinition> { [propertyName] = schema },
Required = [propertyName]
}
});
public sealed class Confirmation
{
public bool Confirm { get; set; }
}
public sealed class UserName
{
public string? Name { get; set; }
}
}
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