diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
new file mode 100644
index 00000000..76b32324
--- /dev/null
+++ b/.github/workflows/benchmark.yml
@@ -0,0 +1,69 @@
+# Copyright (c) 2025-2026 GeWuYou
+# SPDX-License-Identifier: Apache-2.0
+
+name: Benchmark
+
+on:
+  workflow_dispatch:
+    inputs:
+      benchmark_filter:
+        description: '可选的 BenchmarkDotNet 过滤器；留空时仅执行 benchmark 项目 Release build'
+        required: false
+        default: ''
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  benchmark:
+    name: Benchmark Build Or Run
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup .NET 10
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: 10.0.x
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v5
+        with:
+          path: |
+            ~/.nuget/packages
+            ~/.local/share/NuGet
+          key: ${{ runner.os }}-nuget-benchmarks-${{ hashFiles('GFramework.Cqrs.Benchmarks/*.csproj', 'GFramework.Cqrs/*.csproj', 'GFramework.Cqrs.Abstractions/*.csproj', 'GFramework.Core/*.csproj', 'GFramework.Core.Abstractions/*.csproj', '**/nuget.config') }}
+
+      - name: Restore benchmark project
+        run: dotnet restore GFramework.Cqrs.Benchmarks/GFramework.Cqrs.Benchmarks.csproj
+
+      - name: Build benchmark project
+        run: dotnet build GFramework.Cqrs.Benchmarks/GFramework.Cqrs.Benchmarks.csproj -c Release --no-restore
+
+      - name: Report build-only mode
+        if: ${{ inputs.benchmark_filter == '' }}
+        run: |
+          echo "No benchmark filter provided."
+          echo "Workflow completed after validating the benchmark project build."
+
+      - name: Run filtered benchmarks
+        if: ${{ inputs.benchmark_filter != '' }}
+        run: |
+          set -euo pipefail
+          dotnet run --project GFramework.Cqrs.Benchmarks/GFramework.Cqrs.Benchmarks.csproj -c Release --no-build -- \
+            --filter "${{ inputs.benchmark_filter }}"
+
+      - name: Upload BenchmarkDotNet artifacts
+        if: ${{ always() && inputs.benchmark_filter != '' }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: benchmark-artifacts
+          path: |
+            BenchmarkDotNet.Artifacts/**
+            GFramework.Cqrs.Benchmarks/bin/Release/net10.0/BenchmarkDotNet.Artifacts/**
+          if-no-files-found: ignore
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 6446d895..fd9ab98d 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
@@ -32,6 +32,7 @@ CQRS 迁移与收敛。
 - 当前分支对应 `PR #326`，状态为 `OPEN`
 - latest-head review 仍以 `ai-plan` 恢复文档收敛为主要待闭环项；代码与测试侧的本地有效问题已收敛
 - `RequestStartupBenchmarks` 已修复 baseline 分组冲突、MediatR 13 logging/license 构造失败与重复注册问题，但 `ColdStart_GFrameworkCqrs` 仍存在 `No CQRS request handler registered` 的运行级残留
+- 已新增手动触发的 benchmark workflow；默认只验证 benchmark 项目 Release build，只有显式提供过滤器时才执行 BenchmarkDotNet 运行
 - 远端 `CTRF` 最新汇总为 `2274/2274` passed
 - `MegaLinter` 当前只暴露 `dotnet-format` 的 `Restore operation failed` 环境噪音，尚未提供本地仍成立的文件级格式诊断
 
@@ -44,14 +45,17 @@ CQRS 迁移与收敛。
 
 ## 最近权威验证
 
+- `dotnet build GFramework.Cqrs.Benchmarks/GFramework.Cqrs.Benchmarks.csproj -c Release`
+  - 结果：通过，`0 warning / 0 error`
+  - 备注：用于验证新增手动 benchmark workflow 依赖的 benchmark 项目入口仍可在 Release 下编译
 - `python3 .agents/skills/gframework-pr-review/scripts/fetch_current_pr_review.py --format json --json-output <temporary-json-output>`
   - 结果：通过
   - 备注：确认当前分支对应 `PR #326`，本轮剩余 open AI feedback 主要集中在 benchmark 对照语义与 `ai-plan` 结构收敛
-- `git diff --check`
-  - 结果：通过
 - `python3 scripts/license-header.py --check`
   - 结果：通过
   - 备注：当前 WSL worktree 需要显式绑定 `GIT_DIR` / `GIT_WORK_TREE` 后运行
+- `git diff --check`
+  - 结果：通过
 - `dotnet build GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release`
   - 结果：通过，`0 warning / 0 error`
 - `dotnet test GFramework.SourceGenerators.Tests/GFramework.SourceGenerators.Tests.csproj -c Release --filter "FullyQualifiedName~CqrsHandlerRegistryGeneratorTests.Emits_Request_Invoker_Provider_Metadata_In_Stable_Order_For_Mixed_Direct_And_Reflected_Implementations|FullyQualifiedName~CqrsHandlerRegistryGeneratorTests.Emits_Stream_Invoker_Provider_Metadata_In_Stable_Order_For_Mixed_Direct_And_Reflected_Implementations"`
@@ -116,7 +120,7 @@ CQRS 迁移与收敛。
 
 1. 继续处理 `PR #326` 的剩余 review 收尾，优先保持 benchmark 对照语义与 `ai-plan` active 入口一致
 2. 优先定位 `RequestStartupBenchmarks.ColdStart_GFrameworkCqrs` 在清空 dispatcher 缓存后的 request handler 绑定缺口，再决定是调整最小宿主注册方式还是补充专用 benchmark fixture
-3. 若继续推进“吸收 Mediator 设计哲学”的切片，优先扩展 benchmark 场景矩阵到 registration / service lifetime、notification publish strategy 或更贴近 `Mediator` concrete runtime 的对照
+3. 若需要在 CI 中手动复核 benchmark，优先使用新增 workflow 的 `benchmark_filter` 输入按场景筛选，避免默认运行命中当前已知 startup 残留
 
 ## 活跃文档
 
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 6f9a8104..47980e8a 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
@@ -466,3 +466,9 @@
   - 结果：通过
 - `dotnet run --project GFramework.Cqrs.Benchmarks/GFramework.Cqrs.Benchmarks.csproj -c Release -- --filter "*RequestStartupBenchmarks*" --job short --warmupCount 1 --iterationCount 1 --launchCount 1`
   - 结果：部分通过；`MediatR` startup benchmark 已恢复真实测量，`ColdStart_GFrameworkCqrs` 仍因 `No CQRS request handler registered` 失败
+
+### 阶段：手动 benchmark workflow（CQRS-REWRITE-RP-089）
+
+- 新增 `.github/workflows/benchmark.yml`，提供仅 `workflow_dispatch` 触发的 benchmark 入口
+- workflow 默认只执行 `GFramework.Cqrs.Benchmarks` 的 Release build，避免在当前已知 `RequestStartupBenchmarks` 残留未清时默认运行失败
+- 只有在手动输入 `benchmark_filter` 时才执行 BenchmarkDotNet，并上传 `BenchmarkDotNet.Artifacts` 供后续比较