diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/Internal/QylHttpActivityPolicy.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/Internal/QylHttpActivityPolicy.cs
index e4f31de..80ca71b 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/Internal/QylHttpActivityPolicy.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/Internal/QylHttpActivityPolicy.cs
@@ -7,6 +7,7 @@ internal static class QylHttpActivityPolicy
     public static Activity? StartClientActivity(
         string instrumentationDomain,
         string method,
+        string? methodOriginal,
         Uri? requestUri,
         string? rawRequestUri)
     {
@@ -18,7 +19,7 @@ internal static class QylHttpActivityPolicy
         if (activity is null)
             return null;
 
-        SetRequestMethod(activity, method);
+        SetRequestMethod(activity, method, methodOriginal);
         if (requestUri is not null)
             SetClientUrl(activity, requestUri, rawRequestUri);
 
@@ -27,9 +28,11 @@ internal static class QylHttpActivityPolicy
 
     public static Activity? StartServerActivity(
         string method,
+        string? methodOriginal,
         string? route,
         string? path,
-        string? query)
+        string? query,
+        string? scheme)
     {
         var activity = QylActivityFactory.StartTraceActivity(
             QylAutoInstrumentationIds.AspNetCore,
@@ -39,7 +42,9 @@ internal static class QylHttpActivityPolicy
         if (activity is null)
             return null;
 
-        SetRequestMethod(activity, method);
+        SetRequestMethod(activity, method, methodOriginal);
+        if (!string.IsNullOrEmpty(scheme))
+            activity.SetTag(QylSemanticAttributes.UrlScheme, scheme);
         if (path is not null)
             activity.SetTag(QylSemanticAttributes.UrlPath, path);
         if (!string.IsNullOrEmpty(query))
@@ -73,8 +78,12 @@ public static void SetResponseStatus(Activity activity, int statusCode, int erro
     public static void SetResponseStatus(Activity activity, int statusCode)
         => activity.SetTag(QylSemanticAttributes.HttpResponseStatusCode, statusCode);
 
-    private static void SetRequestMethod(Activity activity, string method)
-        => activity.SetTag(QylSemanticAttributes.HttpRequestMethod, method);
+    private static void SetRequestMethod(Activity activity, string method, string? methodOriginal)
+    {
+        activity.SetTag(QylSemanticAttributes.HttpRequestMethod, method);
+        if (!string.IsNullOrEmpty(methodOriginal))
+            activity.SetTag(QylSemanticAttributes.HttpRequestMethodOriginal, methodOriginal);
+    }
 
     private static void SetClientUrl(Activity activity, Uri requestUri, string? rawRequestUri)
     {
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/PublicAPI.Unshipped.txt b/src/Qyl.OpenTelemetry.AutoInstrumentation/PublicAPI.Unshipped.txt
index e0ce27c..1bf8e86 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/PublicAPI.Unshipped.txt
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/PublicAPI.Unshipped.txt
@@ -1,4 +1,6 @@
 #nullable enable
+const Qyl.OpenTelemetry.AutoInstrumentation.QylSemanticAttributes.CodeFunctionName = "code.function.name" -> string!
+const Qyl.OpenTelemetry.AutoInstrumentation.QylSemanticAttributes.UrlScheme = "url.scheme" -> string!
 const Qyl.OpenTelemetry.AutoInstrumentation.QylMetricMeters.AspNetCoreAuthenticationMeterName = "Microsoft.AspNetCore.Authentication" -> string!
 const Qyl.OpenTelemetry.AutoInstrumentation.QylMetricMeters.AspNetCoreAuthorizationMeterName = "Microsoft.AspNetCore.Authorization" -> string!
 const Qyl.OpenTelemetry.AutoInstrumentation.QylMetricMeters.AspNetCoreDiagnosticsMeterName = "Microsoft.AspNetCore.Diagnostics" -> string!
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylHttpMethod.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylHttpMethod.cs
index cb4b9b6..3c662e1 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylHttpMethod.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylHttpMethod.cs
@@ -36,4 +36,19 @@ public static string Normalize(string? method)
 
         return QylSemanticAttributes.HttpRequestMethodOther;
     }
+
+    /// <summary>
+    /// Normalizes <paramref name="method"/> and reports the raw value as <paramref name="original"/> when it
+    /// is non-standard. Per OTel, http.request.method_original MUST be set whenever http.request.method is
+    /// <c>_OTHER</c>; <paramref name="original"/> is null for the standard methods.
+    /// </summary>
+    public static string Normalize(string? method, out string? original)
+    {
+        var normalized = Normalize(method);
+        original = !string.IsNullOrEmpty(method)
+                   && string.Equals(normalized, QylSemanticAttributes.HttpRequestMethodOther, StringComparison.Ordinal)
+            ? method
+            : null;
+        return normalized;
+    }
 }
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAspNetCore.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAspNetCore.cs
index cd7316f..65324b5 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAspNetCore.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAspNetCore.cs
@@ -63,13 +63,15 @@ public static Task InvokeAsync(RequestDelegate requestDelegate, HttpContext cont
         if (!options.IsInstrumentationEnabled(QylAutoInstrumentationSignal.Traces, QylAutoInstrumentationIds.AspNetCore))
             return null;
 
-        var method = QylHttpMethod.Normalize(context.Request.Method);
+        var method = QylHttpMethod.Normalize(context.Request.Method, out var methodOriginal);
         var route = GetRoute(context);
         var activity = QylHttpActivityPolicy.StartServerActivity(
             method,
+            methodOriginal,
             route,
             context.Request.Path.Value,
-            context.Request.QueryString.HasValue ? context.Request.QueryString.Value![1..] : null);
+            context.Request.QueryString.HasValue ? context.Request.QueryString.Value![1..] : null,
+            context.Request.Scheme);
         if (activity is null)
             return null;
 
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAzure.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAzure.cs
index 12a4aae..4d68a19 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAzure.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedAzure.cs
@@ -12,11 +12,17 @@ public static class QylInterceptedAzure
     /// <summary>Runs the Start Activity runtime helper used by source-generated qyl interceptors.</summary>
     public static Activity? StartActivity(string methodName)
     {
-        return QylActivityFactory.StartTraceActivity(
+        var activity = QylActivityFactory.StartTraceActivity(
             QylAutoInstrumentationIds.Azure,
             QylActivityNames.AzureSdk,
             ActivityKind.Client,
             QylInstrumentationDomains.AzureSdk);
+        // Record the intercepted operation so Azure spans are distinguishable. The span name stays the
+        // stable low-cardinality "Azure SDK"; the specific method goes on code.function.name (CODE RED #9:
+        // the methodName parameter was previously received and dropped).
+        if (activity is not null && !string.IsNullOrEmpty(methodName))
+            activity.SetTag(QylSemanticAttributes.CodeFunctionName, methodName);
+        return activity;
     }
 
     /// <summary>Runs the Record Exception runtime helper used by source-generated qyl interceptors.</summary>
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpClient.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpClient.cs
index 53914ae..abe692c 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpClient.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpClient.cs
@@ -584,7 +584,7 @@ private static HttpClientObservation StartHttpClientObservation(
         Uri? requestUri,
         string? rawRequestUri)
     {
-        method = QylHttpMethod.Normalize(method);
+        method = QylHttpMethod.Normalize(method, out var methodOriginal);
         var startTimeUtc = QylDurationMetrics.GetHttpClientStartTimeUtc(metricsEnabled);
         Activity? activity = null;
 
@@ -594,6 +594,7 @@ private static HttpClientObservation StartHttpClientObservation(
             activity = QylHttpActivityPolicy.StartClientActivity(
                 QylInstrumentationDomains.HttpClient,
                 method,
+                methodOriginal,
                 requestUri,
                 rawRequestUri);
         }
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpWebRequest.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpWebRequest.cs
index 8ac1a64..685b2fa 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpWebRequest.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylInterceptedHttpWebRequest.cs
@@ -21,10 +21,11 @@ public static DateTime GetStartTimeUtc()
         if (!options.IsInstrumentationEnabled(QylAutoInstrumentationSignal.Traces, QylAutoInstrumentationIds.HttpClient))
             return null;
 
-        var method = QylHttpMethod.Normalize(request.Method);
+        var method = QylHttpMethod.Normalize(request.Method, out var methodOriginal);
         var activity = QylHttpActivityPolicy.StartClientActivity(
             QylInstrumentationDomains.HttpWebRequest,
             method,
+            methodOriginal,
             request.RequestUri,
             request.RequestUri?.ToString());
         if (activity is null)
diff --git a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylSemanticAttributes.cs b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylSemanticAttributes.cs
index 6873b76..a199519 100644
--- a/src/Qyl.OpenTelemetry.AutoInstrumentation/QylSemanticAttributes.cs
+++ b/src/Qyl.OpenTelemetry.AutoInstrumentation/QylSemanticAttributes.cs
@@ -62,6 +62,10 @@ public static class QylSemanticAttributes
     public const string UrlQuery = UrlAttributes.Query;
     /// <summary>Well-known Url Full value used by qyl auto-instrumentation.</summary>
     public const string UrlFull = UrlAttributes.Full;
+    /// <summary>Well-known Url Scheme value used by qyl auto-instrumentation.</summary>
+    public const string UrlScheme = "url.scheme";
+    /// <summary>Well-known Code Function Name value used by qyl auto-instrumentation.</summary>
+    public const string CodeFunctionName = "code.function.name";
 
     /// <summary>Well-known Dotnet Gc Heap Generation value used by qyl auto-instrumentation.</summary>
     public const string DotnetGcHeapGeneration = DotnetAttributes.GcHeapGeneration;
diff --git a/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/Program.cs b/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/Program.cs
index 3da041e..2b6455a 100644
--- a/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/Program.cs
+++ b/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/Program.cs
@@ -218,6 +218,7 @@ private static IReadOnlyDictionary<string, string> Canonicalize(IReadOnlyDiction
             "qyl.instrumentation.domain",
             "http.request.method",
             "http.route",
+            "url.scheme",
             "http.response.status_code",
             "server.address",
             "server.port",
diff --git a/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/verified/report.json b/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/verified/report.json
index 51b2342..f71175e 100644
--- a/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/verified/report.json
+++ b/tools/Qyl.OpenTelemetry.AutoInstrumentation.WebApiAotDemo/verified/report.json
@@ -71,7 +71,8 @@
         "http.request.method": "GET",
         "http.response.status_code": "204",
         "http.route": "/probe/{id:int}",
-        "qyl.instrumentation.domain": "aspnetcore.server"
+        "qyl.instrumentation.domain": "aspnetcore.server",
+        "url.scheme": "http"
       }
     },
     {
@@ -101,7 +102,8 @@
         "http.request.method": "GET",
         "http.response.status_code": "204",
         "http.route": "/probe/{id:int}",
-        "qyl.instrumentation.domain": "aspnetcore.server"
+        "qyl.instrumentation.domain": "aspnetcore.server",
+        "url.scheme": "http"
       }
     },
     {