Rename ResourceMimeType to HtmlMimeType

Author: Mike Kistler

samples/WeatherAppServer/WeatherResources.cs

@@ -9,7 +9,7 @@ public sealed class WeatherResources
 {
     private static readonly string UiDir = Path.Combine(AppContext.BaseDirectory, "ui");
 
-    [McpServerResource(UriTemplate = "ui://weather-app/forecast", Name = "weather-forecast-ui", MimeType = McpApps.ResourceMimeType)]
+    [McpServerResource(UriTemplate = "ui://weather-app/forecast", Name = "weather-forecast-ui", MimeType = McpApps.HtmlMimeType)]
     [McpMeta("ui", """{"csp":{"connectDomains":["https://api.weather.gov"]},"prefersBorder":true}""")]
     [Description("Interactive weather forecast UI with city picker")]
     public static string GetWeatherForecastUi() => File.ReadAllText(Path.Combine(UiDir, "weather-forecast.html"));

src/ModelContextProtocol.Extensions.Apps/Server/McpApps.cs

@@ -36,7 +36,7 @@ public static class McpApps
     /// This MIME type should be used when registering UI resources with
     /// <c>text/html;profile=mcp-app</c> to indicate they are MCP App resources.
     /// </remarks>
-    public const string ResourceMimeType = "text/html;profile=mcp-app";
+    public const string HtmlMimeType = "text/html;profile=mcp-app";
 
     /// <summary>
     /// The extension identifier used for MCP Apps capability negotiation.

tests/ModelContextProtocol.Tests/Server/McpAppsTests.cs

@@ -22,7 +22,7 @@ public class McpAppsTests
     [Fact]
     public void McpApps_Constants_HaveExpectedValues()
     {
-        Assert.Equal("text/html;profile=mcp-app", McpApps.ResourceMimeType);
+        Assert.Equal("text/html;profile=mcp-app", McpApps.HtmlMimeType);
         Assert.Equal("io.modelcontextprotocol/ui", McpApps.ExtensionId);
     }
 
@@ -113,14 +113,14 @@ public void McpUiClientCapabilities_CanBeRoundtrippedAsJson()
     {
         var caps = new McpUiClientCapabilities
         {
-            MimeTypes = [McpApps.ResourceMimeType],
+            MimeTypes = [McpApps.HtmlMimeType],
         };
 
         var json = JsonSerializer.Serialize(caps, McpApps.SerializerOptions);
         var deserialized = JsonSerializer.Deserialize<McpUiClientCapabilities>(json, McpApps.SerializerOptions);
 
         Assert.NotNull(deserialized);
-        Assert.Equal([McpApps.ResourceMimeType], deserialized.MimeTypes);
+        Assert.Equal([McpApps.HtmlMimeType], deserialized.MimeTypes);
     }
 
     #endregion
@@ -164,7 +164,7 @@ public void GetUiCapability_ReturnsCapabilities_WhenExtensionIsPresent()
             {
                 "extensions": {
                     "{{McpApps.ExtensionId}}": {
-                        "mimeTypes": ["{{McpApps.ResourceMimeType}}"]
+                        "mimeTypes": ["{{McpApps.HtmlMimeType}}"]
                     }
                 }
             }
@@ -176,7 +176,7 @@ public void GetUiCapability_ReturnsCapabilities_WhenExtensionIsPresent()
         var uiCaps = McpApps.GetUiCapability(caps);
 
         Assert.NotNull(uiCaps);
-        Assert.Equal([McpApps.ResourceMimeType], uiCaps.MimeTypes);
+        Assert.Equal([McpApps.HtmlMimeType], uiCaps.MimeTypes);
     }
 
     [Fact]
@@ -228,15 +228,15 @@ public void GetUiCapability_ReturnsCapabilities_WhenValueIsStronglyTyped()
             {
                 [McpApps.ExtensionId] = new McpUiClientCapabilities
                 {
-                    MimeTypes = [McpApps.ResourceMimeType],
+                    MimeTypes = [McpApps.HtmlMimeType],
                 },
             }
         };
 #pragma warning restore MCPEXP001
 
         var uiCaps = McpApps.GetUiCapability(caps);
         Assert.NotNull(uiCaps);
-        Assert.Equal([McpApps.ResourceMimeType], uiCaps.MimeTypes);
+        Assert.Equal([McpApps.HtmlMimeType], uiCaps.MimeTypes);
     }
 
     #endregion