diff --git a/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.SourceEmission.cs b/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.SourceEmission.cs
index 3391e6ad..4db622cb 100644
--- a/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.SourceEmission.cs
+++ b/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.SourceEmission.cs
@@ -8,15 +8,12 @@ public sealed partial class CqrsHandlerRegistryGenerator
     /// <summary>
     ///     生成程序集级 CQRS handler 注册器源码。
     /// </summary>
-    /// <param name="generationEnvironment">
-    ///     当前轮次的生成环境，用于决定 runtime 是否提供 <c>CqrsReflectionFallbackAttribute</c> 契约，以及是否需要在输出中发射对应的程序集级元数据。
-    /// </param>
     /// <param name="registrations">
     ///     已整理并排序的 handler 注册描述。方法会据此生成 <c>CqrsHandlerRegistry.g.cs</c>，其中包含直接注册、实现类型反射注册、精确运行时类型查找等分支。
     /// </param>
     /// <param name="reflectionFallbackEmission">
     ///     当前轮次选定的程序集级 reflection fallback 元数据发射策略。
-    ///     调用方必须先确保：若该策略包含 fallback handlers，则 <paramref name="generationEnvironment" /> 已声明支持对应的 fallback attribute 契约；
+    ///     调用方必须先确保：若该策略包含 fallback handlers，则当前 runtime 已声明支持对应的 fallback attribute 契约；
     ///     否则应在进入本方法前报告诊断并放弃生成，而不是输出会静默漏注册的半成品注册器。
     /// </param>
     /// <returns>完整的注册器源代码文本。</returns>
@@ -28,13 +25,12 @@ public sealed partial class CqrsHandlerRegistryGenerator
     ///     该方法本身不报告诊断；“fallback 必需但 runtime 契约缺失”的错误由调用方在进入本方法前处理。
     /// </remarks>
     private static string GenerateSource(
-        GenerationEnvironment generationEnvironment,
         IReadOnlyList<ImplementationRegistrationSpec> registrations,
         ReflectionFallbackEmissionSpec reflectionFallbackEmission)
     {
         var sourceShape = CreateGeneratedRegistrySourceShape(registrations);
         var builder = new StringBuilder();
-        AppendGeneratedSourcePreamble(builder, generationEnvironment, reflectionFallbackEmission);
+        AppendGeneratedSourcePreamble(builder, reflectionFallbackEmission);
         AppendGeneratedRegistryType(builder, registrations, sourceShape);
         return builder.ToString();
     }
@@ -68,11 +64,9 @@ public sealed partial class CqrsHandlerRegistryGenerator
     ///     发射生成文件头、nullable 指令以及注册器所需的程序集级元数据特性。
     /// </summary>
     /// <param name="builder">生成源码构造器。</param>
-    /// <param name="generationEnvironment">当前轮次的生成环境。</param>
     /// <param name="reflectionFallbackEmission">需要写入程序集级 reflection fallback 特性的元数据策略。</param>
     private static void AppendGeneratedSourcePreamble(
         StringBuilder builder,
-        GenerationEnvironment generationEnvironment,
         ReflectionFallbackEmissionSpec reflectionFallbackEmission)
     {
         builder.AppendLine("// <auto-generated />");
@@ -102,10 +96,14 @@ public sealed partial class CqrsHandlerRegistryGenerator
         StringBuilder builder,
         ReflectionFallbackEmissionSpec reflectionFallbackEmission)
     {
-        foreach (var attributeEmission in reflectionFallbackEmission.Attributes)
+        for (var index = 0; index < reflectionFallbackEmission.Attributes.Length; index++)
         {
-            AppendReflectionFallbackAttribute(builder, attributeEmission);
-            builder.AppendLine();
+            if (index > 0)
+            {
+                builder.AppendLine();
+            }
+
+            AppendReflectionFallbackAttribute(builder, reflectionFallbackEmission.Attributes[index]);
         }
     }
 
diff --git a/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.cs b/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.cs
index 688fbc9a..5ebe31b0 100644
--- a/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.cs
+++ b/GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.cs
@@ -296,7 +296,7 @@ public sealed partial class CqrsHandlerRegistryGenerator : IIncrementalGenerator
 
         context.AddSource(
             HintName,
-            GenerateSource(generationEnvironment, registrations, reflectionFallbackEmission));
+            GenerateSource(registrations, reflectionFallbackEmission));
     }
 
     /// <summary>
diff --git a/GFramework.Cqrs.Tests/Cqrs/ReflectionFallbackNotificationContainer.cs b/GFramework.Cqrs.Tests/Cqrs/ReflectionFallbackNotificationContainer.cs
index c80465ce..d54f0dfd 100644
--- a/GFramework.Cqrs.Tests/Cqrs/ReflectionFallbackNotificationContainer.cs
+++ b/GFramework.Cqrs.Tests/Cqrs/ReflectionFallbackNotificationContainer.cs
@@ -13,6 +13,9 @@ internal sealed class ReflectionFallbackNotificationContainer
     /// <summary>
     ///     获取可被直接引用、适合通过 <see cref="Type" /> 元数据补扫的处理器类型。
     /// </summary>
+    /// <returns>
+    ///     可被生成注册器直接引用的 fallback 处理器类型，用于验证 runtime 会优先消费 <see cref="Type" /> 元数据。
+    /// </returns>
     public static Type DirectFallbackHandlerType => typeof(DirectFallbackGeneratedRegistryNotificationHandler);
 
     /// <summary>
diff --git a/GFramework.SourceGenerators.Tests/Cqrs/CqrsHandlerRegistryGeneratorTests.cs b/GFramework.SourceGenerators.Tests/Cqrs/CqrsHandlerRegistryGeneratorTests.cs
index 8b5b1b56..78441c5b 100644
--- a/GFramework.SourceGenerators.Tests/Cqrs/CqrsHandlerRegistryGeneratorTests.cs
+++ b/GFramework.SourceGenerators.Tests/Cqrs/CqrsHandlerRegistryGeneratorTests.cs
@@ -1876,6 +1876,7 @@ public class CqrsHandlerRegistryGeneratorTests
         var generatorErrors = execution.GeneratorDiagnostics
             .Where(static diagnostic => diagnostic.Severity == DiagnosticSeverity.Error)
             .ToArray();
+        var generatedSource = execution.GeneratedSources[0].content;
 
         Assert.Multiple(() =>
         {
@@ -1885,13 +1886,24 @@ public class CqrsHandlerRegistryGeneratorTests
             Assert.That(execution.GeneratedSources, Has.Length.EqualTo(1));
             Assert.That(execution.GeneratedSources[0].filename, Is.EqualTo("CqrsHandlerRegistry.g.cs"));
             Assert.That(
-                execution.GeneratedSources[0].content,
+                generatedSource,
                 Does.Contain(
                     "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(typeof(global::TestApp.Container.AlphaHandler), typeof(global::TestApp.Container.BetaHandler))]"));
             Assert.That(
-                execution.GeneratedSources[0].content,
+                generatedSource,
                 Does.Not.Contain(
                     "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(\"TestApp.Container+AlphaHandler\", \"TestApp.Container+BetaHandler\")]"));
+            Assert.That(generatedSource, Does.Not.Contain("CqrsReflectionFallbackAttribute()"));
+            Assert.That(
+                CountOccurrences(
+                    generatedSource,
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute"),
+                Is.EqualTo(1));
+            Assert.That(
+                CountOccurrences(
+                    generatedSource,
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(\""),
+                Is.Zero);
         });
     }
 
@@ -1915,6 +1927,7 @@ public class CqrsHandlerRegistryGeneratorTests
         var generatorErrors = execution.GeneratorDiagnostics
             .Where(static diagnostic => diagnostic.Severity == DiagnosticSeverity.Error)
             .ToArray();
+        var generatedSource = execution.GeneratedSources[0].content;
 
         Assert.Multiple(() =>
         {
@@ -1924,13 +1937,32 @@ public class CqrsHandlerRegistryGeneratorTests
             Assert.That(execution.GeneratedSources, Has.Length.EqualTo(1));
             Assert.That(execution.GeneratedSources[0].filename, Is.EqualTo("CqrsHandlerRegistry.g.cs"));
             Assert.That(
-                execution.GeneratedSources[0].content,
+                generatedSource,
                 Does.Contain(
                     "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(typeof(global::TestApp.Container.AlphaHandler))]"));
             Assert.That(
-                execution.GeneratedSources[0].content,
+                generatedSource,
                 Does.Contain(
                     "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(\"TestApp.Container+BetaHandler\")]"));
+            Assert.That(generatedSource, Does.Not.Contain("CqrsReflectionFallbackAttribute()"));
+            Assert.That(
+                CountOccurrences(
+                    generatedSource,
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute"),
+                Is.EqualTo(2));
+            Assert.That(
+                CountOccurrences(
+                    generatedSource,
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(\""),
+                Is.EqualTo(1));
+            Assert.That(
+                generatedSource,
+                Does.Contain(
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(typeof(global::TestApp.Container.AlphaHandler))]" +
+                    Environment.NewLine +
+                    "[assembly: global::GFramework.Cqrs.CqrsReflectionFallbackAttribute(\"TestApp.Container+BetaHandler\")]" +
+                    Environment.NewLine +
+                    "[assembly: global::GFramework.Cqrs.CqrsHandlerRegistryAttribute(typeof(global::GFramework.Generated.Cqrs.__GFrameworkGeneratedCqrsHandlerRegistry))]"));
         });
     }
 
@@ -1985,6 +2017,31 @@ public class CqrsHandlerRegistryGeneratorTests
         return execution.GeneratedSources[0].content;
     }
 
+    /// <summary>
+    ///     统计生成源码中某个固定片段的出现次数，用于锁定程序集级 fallback 特性的发射个数。
+    /// </summary>
+    /// <param name="text">待统计的完整生成源码。</param>
+    /// <param name="value">需要计数的固定片段。</param>
+    /// <returns><paramref name="value" /> 在 <paramref name="text" /> 中出现的次数。</returns>
+    private static int CountOccurrences(string text, string value)
+    {
+        if (string.IsNullOrEmpty(value))
+            throw new ArgumentException("The search value must not be null or empty.", nameof(value));
+
+        var count = 0;
+        var startIndex = 0;
+
+        while (true)
+        {
+            var nextIndex = text.IndexOf(value, startIndex, global::System.StringComparison.Ordinal);
+            if (nextIndex < 0)
+                return count;
+
+            count++;
+            startIndex = nextIndex + value.Length;
+        }
+    }
+
     /// <summary>
     ///     运行 CQRS handler registry generator，并返回生成输出及相关诊断。
     /// </summary>
diff --git a/ai-plan/public/cqrs-rewrite/todos/cqrs-rewrite-migration-tracking.md b/ai-plan/public/cqrs-rewrite/todos/cqrs-rewrite-migration-tracking.md
index e6905ac8..64365852 100644
--- a/ai-plan/public/cqrs-rewrite/todos/cqrs-rewrite-migration-tracking.md
+++ b/ai-plan/public/cqrs-rewrite/todos/cqrs-rewrite-migration-tracking.md
@@ -66,6 +66,11 @@ CQRS 迁移与收敛。
   - 当本轮 fallback 同时包含可直接引用与仅能按名称恢复的 handlers，且 runtime 同时支持 `Type[]`、`string[]` 和多实例特性时，生成器会拆分输出两段 fallback 元数据
   - `GFramework.Cqrs.Tests` 已补充 mixed fallback metadata 回归，锁定 registrar 只对字符串条目执行定向 `Assembly.GetType(...)`
   - `GFramework.SourceGenerators.Tests` 已补充 mixed fallback emission 回归，锁定 generator 会输出两个程序集级 fallback 特性实例而不是整体退回字符串
+- `2026-04-29` 已重新执行 `$gframework-pr-review`：
+  - 当前分支对应 `PR #302`，状态为 `OPEN`
+  - latest reviewed commit 当前剩余 `3` 条 open AI review threads：`2` 条 Greptile、`1` 条 CodeRabbit
+  - 本地核对后确认 `dotnet-format` 仍只有 `Restore operation failed` 噪音，没有附带当前仍成立的文件级格式诊断
+  - 已按 review triage 修正 generator source preamble 的多实例 fallback 特性排版、移除死参数，并补强 mixed/direct fallback 发射回归断言与 XML 文档
 - 当前主线优先级：
   - generator 覆盖面继续扩大
   - dispatch/invoker 反射占比继续下降
@@ -116,6 +121,18 @@ CQRS 迁移与收敛。
 - `dotnet test GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release --filter "FullyQualifiedName~CqrsHandlerRegistryGeneratorTests"`
   - 结果：通过
   - 备注：`18/18` 测试通过；本轮覆盖 mixed fallback metadata 的双特性发射路径
+- `python3 .agents/skills/gframework-pr-review/scripts/fetch_current_pr_review.py --json-output /tmp/gframework-pr-review.json`
+  - 结果：通过
+  - 备注：确认当前分支对应 `PR #302`；latest head review 仍有 `3` 条 open AI threads，其中 MegaLinter 仅报告 `dotnet-format` restore failure 噪音
+- `dotnet build GFramework.Cqrs.SourceGenerators/GFramework.Cqrs.SourceGenerators.csproj -c Release`
+  - 结果：通过
+  - 备注：`0 warning / 0 error`
+- `dotnet test GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release --filter "FullyQualifiedName~CqrsHandlerRegistryGeneratorTests"`
+  - 结果：通过
+  - 备注：`18/18` 测试通过；本轮直接覆盖 fallback preamble 排版与特性个数断言收紧
+- `dotnet test GFramework.Cqrs.Tests/GFramework.Cqrs.Tests.csproj -c Release --filter "FullyQualifiedName~GFramework.Cqrs.Tests.Cqrs.CqrsHandlerRegistrarTests"`
+  - 结果：通过
+  - 备注：`13/13` 测试通过；本轮确认 mixed fallback metadata 的 registrar 消费路径未回归
 
 ## 下一步
 
diff --git a/ai-plan/public/cqrs-rewrite/traces/cqrs-rewrite-migration-trace.md b/ai-plan/public/cqrs-rewrite/traces/cqrs-rewrite-migration-trace.md
index 33aa44fa..cb008db1 100644
--- a/ai-plan/public/cqrs-rewrite/traces/cqrs-rewrite-migration-trace.md
+++ b/ai-plan/public/cqrs-rewrite/traces/cqrs-rewrite-migration-trace.md
@@ -32,6 +32,22 @@
   - `13/13` passed
   - `dotnet test GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release --filter "FullyQualifiedName~CqrsHandlerRegistryGeneratorTests"`
   - `18/18` passed
+- 随后按 `$gframework-pr-review` 重新拉取当前分支 PR 审查数据：
+  - 当前 worktree `feat/cqrs-optimization` 已对应 `PR #302`
+  - latest head commit 仍有 `3` 条 open AI review threads：Greptile 指向 generator preamble 的死参数与多实例 fallback 特性空行，CodeRabbit 指向 mixed/direct fallback 测试断言过宽
+  - MegaLinter 仍只暴露 `dotnet-format` 的 `Restore operation failed`，未给出本地仍成立的格式文件线索，因此按环境噪音处理
+- 本轮已继续收口 `RP-052` 的 follow-up：
+  - 在 `GFramework.Cqrs.SourceGenerators/Cqrs/CqrsHandlerRegistryGenerator.SourceEmission.cs` 中移除已不再参与判断的 `generationEnvironment` 透传参数
+  - 调整多实例 fallback 特性发射时的换行策略，避免最后一个 fallback 特性与 `CqrsHandlerRegistryAttribute` 之间保留多余空行
+  - 在 `GFramework.SourceGenerators.Tests/Cqrs/CqrsHandlerRegistryGeneratorTests.cs` 中补强 direct/mixed fallback 发射断言，锁定特性实例个数、拒绝空 marker，并确保 mixed 场景的程序集级 preamble 排版稳定
+  - 在 `GFramework.Cqrs.Tests/Cqrs/ReflectionFallbackNotificationContainer.cs` 中为 `DirectFallbackHandlerType` 补齐 `<returns>` XML 文档
+- 本轮 review follow-up 验证已通过：
+  - `dotnet build GFramework.Cqrs.SourceGenerators/GFramework.Cqrs.SourceGenerators.csproj -c Release`
+  - `0 warning / 0 error`
+  - `dotnet test GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release --filter "FullyQualifiedName~CqrsHandlerRegistryGeneratorTests"`
+  - `18/18` passed
+  - `dotnet test GFramework.Cqrs.Tests/GFramework.Cqrs.Tests.csproj -c Release --filter "FullyQualifiedName~GFramework.Cqrs.Tests.Cqrs.CqrsHandlerRegistrarTests"`
+  - `13/13` passed
 
 ## 2026-04-20