diff --git a/GFramework.Game/Internal/VersionedMigrationRunner.cs b/GFramework.Game/Internal/VersionedMigrationRunner.cs
index 9c628cc2..349d9031 100644
--- a/GFramework.Game/Internal/VersionedMigrationRunner.cs
+++ b/GFramework.Game/Internal/VersionedMigrationRunner.cs
@@ -92,11 +92,7 @@ internal static class VersionedMigrationRunner
         ArgumentException.ThrowIfNullOrWhiteSpace(migrationKind);
 
         var currentVersion = getVersion(data);
-        if (currentVersion > targetVersion)
-        {
-            throw new InvalidOperationException(
-                $"{subjectName} is version {currentVersion}, which is newer than the current runtime version {targetVersion}.");
-        }
+        EnsureRuntimeVersionIsSupported(currentVersion, targetVersion, subjectName);
 
         if (currentVersion == targetVersion)
         {
@@ -107,43 +103,148 @@ internal static class VersionedMigrationRunner
 
         while (currentVersion < targetVersion)
         {
-            var migration = resolveMigration(currentVersion);
-            if (migration is null)
-            {
-                throw new InvalidOperationException(
-                    $"No {migrationKind} is registered for {subjectName} from version {currentVersion}.");
-            }
-
-            current = applyMigration(migration, current)
-                ?? throw new InvalidOperationException(
-                    $"{migrationKind} for {subjectName} from version {currentVersion} returned null.");
-
-            var migratedVersion = getVersion(current);
-            var declaredTargetVersion = getToVersion(migration);
-
-            if (declaredTargetVersion != migratedVersion)
-            {
-                throw new InvalidOperationException(
-                    $"{migrationKind} for {subjectName} declared target version {declaredTargetVersion} " +
-                    $"but returned version {migratedVersion}.");
-            }
-
-            if (migratedVersion <= currentVersion)
-            {
-                throw new InvalidOperationException(
-                    $"{migrationKind} for {subjectName} must advance beyond version {currentVersion}.");
-            }
-
-            if (migratedVersion > targetVersion)
-            {
-                throw new InvalidOperationException(
-                    $"{migrationKind} for {subjectName} produced version {migratedVersion}, " +
-                    $"which exceeds the current runtime version {targetVersion}.");
-            }
-
-            currentVersion = migratedVersion;
+            var migration = GetRequiredMigration(resolveMigration, currentVersion, subjectName, migrationKind);
+            var result = ApplyMigrationStep(
+                migration,
+                current,
+                currentVersion,
+                targetVersion,
+                getVersion,
+                getToVersion,
+                applyMigration,
+                subjectName,
+                migrationKind);
+            current = result.Data;
+            currentVersion = result.Version;
         }
 
         return current;
     }
+
+    /// <summary>
+    ///     拒绝比当前运行时更高的数据版本，避免迁移器在未知版本上继续执行。
+    /// </summary>
+    /// <param name="currentVersion">数据当前版本。</param>
+    /// <param name="targetVersion">运行时支持的目标版本。</param>
+    /// <param name="subjectName">迁移主体名称。</param>
+    /// <exception cref="InvalidOperationException">数据版本高于运行时版本时抛出。</exception>
+    private static void EnsureRuntimeVersionIsSupported(int currentVersion, int targetVersion, string subjectName)
+    {
+        if (currentVersion > targetVersion)
+        {
+            throw new InvalidOperationException(
+                $"{subjectName} is version {currentVersion}, which is newer than the current runtime version {targetVersion}.");
+        }
+    }
+
+    /// <summary>
+    ///     解析当前版本必须存在的下一步迁移器，避免在调用循环中重复拼接相同错误。
+    /// </summary>
+    /// <typeparam name="TMigration">迁移描述类型。</typeparam>
+    /// <param name="resolveMigration">迁移解析委托。</param>
+    /// <param name="currentVersion">当前版本。</param>
+    /// <param name="subjectName">迁移主体名称。</param>
+    /// <param name="migrationKind">迁移类别名称。</param>
+    /// <returns>已解析的迁移器。</returns>
+    /// <exception cref="InvalidOperationException">缺少迁移器时抛出。</exception>
+    private static TMigration GetRequiredMigration<TMigration>(
+        Func<int, TMigration?> resolveMigration,
+        int currentVersion,
+        string subjectName,
+        string migrationKind)
+    {
+        var migration = resolveMigration(currentVersion);
+        if (migration is null)
+        {
+            throw new InvalidOperationException(
+                $"No {migrationKind} is registered for {subjectName} from version {currentVersion}.");
+        }
+
+        return migration;
+    }
+
+    /// <summary>
+    ///     执行单步迁移并验证声明目标版本、结果版本与运行时上限之间的一致性。
+    /// </summary>
+    /// <typeparam name="TData">迁移数据类型。</typeparam>
+    /// <typeparam name="TMigration">迁移描述类型。</typeparam>
+    /// <param name="migration">当前步骤的迁移器。</param>
+    /// <param name="current">迁移前数据。</param>
+    /// <param name="currentVersion">迁移前版本。</param>
+    /// <param name="targetVersion">运行时目标版本。</param>
+    /// <param name="getVersion">数据版本读取委托。</param>
+    /// <param name="getToVersion">迁移器目标版本读取委托。</param>
+    /// <param name="applyMigration">迁移执行委托。</param>
+    /// <param name="subjectName">迁移主体名称。</param>
+    /// <param name="migrationKind">迁移类别名称。</param>
+    /// <returns>迁移后的数据与新版本号。</returns>
+    /// <exception cref="InvalidOperationException">
+    ///     迁移结果为空、声明目标版本不匹配、版本未前进或超出运行时版本时抛出。
+    /// </exception>
+    private static (TData Data, int Version) ApplyMigrationStep<TData, TMigration>(
+        TMigration migration,
+        TData current,
+        int currentVersion,
+        int targetVersion,
+        Func<TData, int> getVersion,
+        Func<TMigration, int> getToVersion,
+        Func<TMigration, TData, TData> applyMigration,
+        string subjectName,
+        string migrationKind)
+        where TData : class
+    {
+        var migratedData = applyMigration(migration, current)
+            ?? throw new InvalidOperationException(
+                $"{migrationKind} for {subjectName} from version {currentVersion} returned null.");
+        var migratedVersion = getVersion(migratedData);
+        ValidateMigrationResult(
+            currentVersion,
+            targetVersion,
+            migratedVersion,
+            getToVersion(migration),
+            subjectName,
+            migrationKind);
+        return (migratedData, migratedVersion);
+    }
+
+    /// <summary>
+    ///     校验单步迁移结果与声明目标版本一致，并确保版本严格单调递增且不越过运行时版本。
+    /// </summary>
+    /// <param name="currentVersion">迁移前版本。</param>
+    /// <param name="targetVersion">运行时目标版本。</param>
+    /// <param name="migratedVersion">迁移后实际版本。</param>
+    /// <param name="declaredTargetVersion">迁移器声明的目标版本。</param>
+    /// <param name="subjectName">迁移主体名称。</param>
+    /// <param name="migrationKind">迁移类别名称。</param>
+    /// <exception cref="InvalidOperationException">
+    ///     声明目标版本不匹配、版本未前进或超出运行时版本时抛出。
+    /// </exception>
+    private static void ValidateMigrationResult(
+        int currentVersion,
+        int targetVersion,
+        int migratedVersion,
+        int declaredTargetVersion,
+        string subjectName,
+        string migrationKind)
+    {
+        if (declaredTargetVersion != migratedVersion)
+        {
+            throw new InvalidOperationException(
+                $"{migrationKind} for {subjectName} declared target version {declaredTargetVersion} " +
+                $"but returned version {migratedVersion}.");
+        }
+
+        if (migratedVersion <= currentVersion)
+        {
+            throw new InvalidOperationException(
+                $"{migrationKind} for {subjectName} must advance beyond version {currentVersion}.");
+        }
+
+        if (migratedVersion > targetVersion)
+        {
+            throw new InvalidOperationException(
+                $"{migrationKind} for {subjectName} produced version {migratedVersion}, " +
+                $"which exceeds the current runtime version {targetVersion}.");
+        }
+    }
 }
diff --git a/ai-plan/public/analyzer-warning-reduction/todos/analyzer-warning-reduction-tracking.md b/ai-plan/public/analyzer-warning-reduction/todos/analyzer-warning-reduction-tracking.md
index 9787b506..c3bee7f0 100644
--- a/ai-plan/public/analyzer-warning-reduction/todos/analyzer-warning-reduction-tracking.md
+++ b/ai-plan/public/analyzer-warning-reduction/todos/analyzer-warning-reduction-tracking.md
@@ -6,38 +6,35 @@
 
 ## 当前恢复点
 
-- 恢复点编号：`ANALYZER-WARNING-REDUCTION-RP-066`
-- 当前阶段：`Phase 66`
+- 恢复点编号：`ANALYZER-WARNING-REDUCTION-RP-067`
+- 当前阶段：`Phase 67`
 - 当前焦点：
-  - `2026-04-25` 已先提交 `6a704f3` `fix(analyzer): 固化沙箱外验证并清理测试噪音`，把 AGENTS / active ai-plan 真值修正与 4 文件测试噪音批次一起收口
-  - 当前单文件批次聚焦 `GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs`，已收敛 4 个根构建直接确认的 `MA0051`
-  - 提权后的直接仓库根基线已从 `656 Warning(s)` 降至 `652 Warning(s)`，说明本轮单文件批次有效
-  - `GFramework.Game.Tests` 的直接受影响 Release build 当前为 `0 Warning(s)`、`0 Error(s)`
-  - 本批次落地后，branch diff 相对 `origin/main` 将从 `7 files` 推进到 `8 files`，仍显著低于 `$gframework-batch-boot 50` 阈值
+  - `2026-04-25` 已连续提交 `6a704f3` `fix(analyzer): 固化沙箱外验证并清理测试噪音` 与 `be26640` `test(game-tests): 收敛热重载长方法 warning`
+  - 当前单文件批次聚焦 `GFramework.Game/Internal/VersionedMigrationRunner.cs`，通过拆分迁移主循环中的职责收敛根构建直接确认的 `MA0051`
+  - 提权后的直接仓库根基线已从 `652 Warning(s)` 降至 `649 Warning(s)`，说明本轮 runtime 单文件批次继续有效
+  - `GFramework.Game` 的直接受影响 `Release` build 当前为 `0 Warning(s)`、`0 Error(s)`
+  - 本轮只新增 1 个源码唯一文件，branch diff 仍显著低于 `$gframework-batch-boot 50` 阈值
 
 ## 当前活跃事实
 
 - 当前 `origin/main` 基线提交为 `4ad880c`（`2026-04-25T14:35:38+08:00`）。
-- `6a704f3` 落地后，当前 committed branch diff 相对 `origin/main` 为：
-  - `git diff --name-only origin/main...HEAD | wc -l`：`7`
-  - `git diff --numstat origin/main...HEAD`：累计 `104` added、`123` deleted
 - 提权后的直接仓库根验证当前确认为：
   - `dotnet clean`
     - 结果：成功；此前沙箱内 “Build FAILED but 0 errors” 的 clean 结果不是仓库真值
   - `dotnet build`
-    - 最新结果：成功；`652 Warning(s)`、`0 Error(s)`
+    - 最新结果：成功；`649 Warning(s)`、`0 Error(s)`
 - 已提交的低风险批次文件：
   - `AGENTS.md`
   - `GFramework.Ecs.Arch.Tests/Ecs/EcsAdvancedTests.cs`
   - `GFramework.Game.Tests/Config/GameConfigBootstrapTests.cs`
   - `GFramework.Game.Tests/Config/GeneratedConfigConsumerIntegrationTests.cs`
+  - `GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs`
   - `GFramework.Game.Tests/Config/YamlConfigTextValidatorTests.cs`
+  - `GFramework.Game/Internal/VersionedMigrationRunner.cs`
   - `ai-plan/public/analyzer-warning-reduction/todos/analyzer-warning-reduction-tracking.md`
   - `ai-plan/public/analyzer-warning-reduction/traces/analyzer-warning-reduction-trace.md`
-- 当前待提交批次文件：
-  - `GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs`
 - 当前批次验证结果：
-  - `dotnet build GFramework.Game.Tests/GFramework.Game.Tests.csproj -c Release`
+  - `dotnet build GFramework.Game/GFramework.Game.csproj -c Release`
     - 最新主线程结果：成功；`0 Warning(s)`、`0 Error(s)`
 
 ## 当前风险
@@ -66,16 +63,12 @@
 - `dotnet clean`
   - 当前结果：成功；在提权后的直接 shell 中可正常完成仓库根 clean
 - `dotnet build`
-  - 当前结果：成功；`652 Warning(s)`、`0 Error(s)`
-- `dotnet build GFramework.Game.Tests/GFramework.Game.Tests.csproj -c Release`
+  - 当前结果：成功；`649 Warning(s)`、`0 Error(s)`
+- `dotnet build GFramework.Game/GFramework.Game.csproj -c Release`
   - 当前结果：成功；`0 Warning(s)`、`0 Error(s)`
-- `git diff --name-only origin/main...HEAD | wc -l`
-  - 当前结果：`7`
-- `git diff --numstat origin/main...HEAD`
-  - 当前结果：累计 `104` added、`123` deleted
 
 ## 下一步建议
 
-1. 提交当前 `YamlConfigLoaderTests.cs` 单文件批次后，继续按 `$gframework-batch-boot 50` 规则重算 branch diff，并挑选下一个 1-3 文件的低风险热点。
-2. 下一轮优先从 `GFramework.Cqrs.Tests` 或 `GFramework.Game` 中继续选择单文件 `MA0051` / 测试噪音切片，避免过早推高 review 范围。
+1. 以当前 `649 Warning(s)` 根基线为新恢复点，继续按 `$gframework-batch-boot 50` 规则重算 branch diff，并挑选下一个 1-3 文件的低风险热点。
+2. 下一轮优先从 `GFramework.Cqrs.Tests` 或 `GFramework.Game` 中继续选择单文件 `MA0051`、`MA0016` 或测试噪音切片，避免过早推高 review 范围。
 3. 后续凡是沙箱内 `.NET` 验证再次出现无诊断失败、pipe/socket 权限问题或与普通 shell 不一致的结果，直接申请沙箱外重跑同一命令，不再扩散 workaround 型命令噪音。
diff --git a/ai-plan/public/analyzer-warning-reduction/traces/analyzer-warning-reduction-trace.md b/ai-plan/public/analyzer-warning-reduction/traces/analyzer-warning-reduction-trace.md
index 2e3dd9c8..58cc8941 100644
--- a/ai-plan/public/analyzer-warning-reduction/traces/analyzer-warning-reduction-trace.md
+++ b/ai-plan/public/analyzer-warning-reduction/traces/analyzer-warning-reduction-trace.md
@@ -1,5 +1,28 @@
 # Analyzer Warning Reduction 追踪
 
+## 2026-04-25 — RP-067
+
+### 阶段：收口 Game runtime 单文件长方法切片，并继续压低根构建 warning 基线
+
+- 触发背景：
+  - `RP-066` 收尾后，当前分支已通过 `be26640` 把 `YamlConfigLoaderTests.cs` 的 4 个 `MA0051` 落地，仓库根基线降到 `652 Warning(s)`
+  - 主线程随后切到 `GFramework.Game/Internal/VersionedMigrationRunner.cs`，继续挑选单文件、低风险、可独立验证的 runtime warning 切片
+- 主线程实施：
+  - 将 `MigrateToTargetVersion` 中的运行时版本校验、迁移解析、单步应用与结果一致性校验拆分为具名 helper
+  - 为新增 helper 补齐 XML 注释，保持该共享迁移执行器的职责边界可读，并避免仅靠机械拆分留下语义不清的私有方法
+  - 保持外部行为不变，只收敛长方法 warning，不扩展到存储或日志相关调用方
+- 验证里程碑：
+  - `dotnet clean`
+    - 结果：成功
+  - `dotnet build`
+    - 结果：成功；`649 Warning(s)`、`0 Error(s)`，相较 `RP-066` 的 `652` 再下降 `3`
+  - `dotnet build GFramework.Game/GFramework.Game.csproj -c Release`
+    - 结果：成功；`0 Warning(s)`、`0 Error(s)`
+- 当前结论：
+  - `VersionedMigrationRunner.cs` 这个 runtime 单文件批次已被主线程收口，并继续压低仓库根 warning 基线
+  - 本轮只新增 1 个源码唯一文件，branch diff 仍显著低于 `$gframework-batch-boot 50` 的主停止阈值
+  - 下一轮可以继续挑选 `GFramework.Cqrs.Tests` 或 `GFramework.Game` 的单文件轻量切片，并保持主线程验证、subagent 并行探索的节奏
+
 ## 2026-04-25 — RP-066
 
 ### 阶段：主线程回收停滞的单文件批次，并继续压低根构建 warning 基线