diff --git a/AGENTS.md b/AGENTS.md
index 34f72ef4..cae6f7da 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -98,6 +98,7 @@
 - `docs/ROADMAP_WBS.md`의 WBS-8.2: `run_kis_data_collection_v1.py` → `validate_platform_transition_wbs_v1.py` → `validate_snapshot_admin_web_v1.py`.
 - `docs/WBS_10_DOTNET_MIGRATION_ROADMAP.yaml`: `.NET 엔진 고도화` 상세 WBS와 각 WBS별 성공 데이터 가이드.
 - `docs/WBS_10_DOTNET_MIGRATION_INVENTORY.yaml`: WBS-10 전환 우선순위용 실행 경로 인벤토리.
+- `docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml`: WBS-10 착수용 실행 분해 계획.
 - `tools/validate_dotnet_migration_roadmap_v1.py`: WBS-10 상세 로드맵 YAML validator.
 - `Temp/snapshot_admin_approval_packet_v1.json`: snapshot admin approval packet export.
 - `Temp/snapshot_admin_approval_packet_v1.md`: snapshot admin approval packet summary.
diff --git a/docs/ROADMAP_WBS.md b/docs/ROADMAP_WBS.md
index 7797c42a..64346e90 100644
--- a/docs/ROADMAP_WBS.md
+++ b/docs/ROADMAP_WBS.md
@@ -1466,6 +1466,7 @@ WBS-8.8 (KIS 리팩터) — 독립적 (원격 병행)
 
 > 상세 작업 가이드(YAML): [WBS_10_DOTNET_MIGRATION_ROADMAP.yaml](./WBS_10_DOTNET_MIGRATION_ROADMAP.yaml)
 > 실행 경로 인벤토리: [WBS_10_DOTNET_MIGRATION_INVENTORY.yaml](./WBS_10_DOTNET_MIGRATION_INVENTORY.yaml)
+> 실행 분해 계획: [WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml](./WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml)
 
 > 현황 진단(2026-06-26): .NET 프로젝트는 Python 엔진(41 모듈, 14,500 LOC) 대비 5~10%(~1,400 LOC) 수준.
 > Domain 계산기 6개·데이터 모델 8개·KIS/Naver/Yahoo 클라이언트·PostgreSQL 마이그레이션·Razor Pages 어드민 대시보드 기본 구현 완료.
diff --git a/docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml b/docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml
new file mode 100644
index 00000000..ec9b737a
--- /dev/null
+++ b/docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml
@@ -0,0 +1,98 @@
+formula_id: WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN_V1
+owner: QuantEngine
+status: draft
+source_of_truth:
+  - docs/WBS_10_DOTNET_MIGRATION_ROADMAP.yaml
+  - docs/WBS_10_DOTNET_MIGRATION_INVENTORY.yaml
+
+goal: ".NET 엔진 고도화를 실제 작업 순서로 착수 가능한 수준까지 분해한다."
+
+work_packages:
+  - wp_id: WBS-10-WP1
+    title: "운영 경로 분해 및 전환 경계 확정"
+    objective: "Python harness / .NET domain / .NET application / .NET web / read model 경계를 고정한다."
+    depends_on:
+      - WBS-10-A1
+    inputs:
+      - docs/WBS_10_DOTNET_MIGRATION_INVENTORY.yaml
+      - docs/WBS_10_DOTNET_MIGRATION_ROADMAP.yaml
+    outputs:
+      - docs/WBS_10_DOTNET_MIGRATION_INVENTORY.yaml
+      - docs/WBS_10_DOTNET_MIGRATION_EXECUTION_PLAN.yaml
+    success_data:
+      schema: yaml
+      fields:
+        - route_id
+        - classification
+        - keep_or_migrate
+        - owner_file
+        - note
+      pass_condition: "migrate 대상과 keep 대상이 혼동 없이 분리됨"
+
+  - wp_id: WBS-10-WP2
+    title: "Domain parity 우선순위 확정"
+    objective: "핵심 계산기와 하네스 parity 대상을 먼저 고정한다."
+    depends_on:
+      - WBS-10-WP1
+    inputs:
+      - src/dotnet/QuantEngine.Core/Domain/FormulaEngine.cs
+      - src/dotnet/QuantEngine.Core/Domain/FactorCalculator.cs
+      - src/dotnet/QuantEngine.Core.Tests/FormulaEngineTests.cs
+    outputs:
+      - Temp/wbs10_domain_parity_backlog.json
+    success_data:
+      schema: json
+      fields:
+        - formula_id
+        - parity_targets
+        - tolerance
+        - coverage_min
+      pass_condition: "핵심 계산기 parity 대상이 누락 없이 나열됨"
+
+  - wp_id: WBS-10-WP3
+    title: "스케줄러 서비스 수준 강화 착수"
+    objective: "SchedulerService를 상태/의존성/재시도/감사 추적 서비스로 진화시킨다."
+    depends_on:
+      - WBS-10-WP1
+    inputs:
+      - src/dotnet/QuantEngine.Web/Services/SchedulerService.cs
+      - spec/41_release_dag.yaml
+    outputs:
+      - Temp/wbs10_scheduler_service_backlog.yaml
+    success_data:
+      schema: yaml
+      fields:
+        - state_machine
+        - dependency_edges
+        - retry_policy
+        - audit_fields
+      pass_condition: "현재 cron형 호출과 서비스 수준 제어면의 차이가 정의됨"
+
+  - wp_id: WBS-10-WP4
+    title: "read model 분리 착수"
+    objective: "운영 조회를 원장/집계와 분리한다."
+    depends_on:
+      - WBS-10-WP1
+    inputs:
+      - src/dotnet/QuantEngine.Web/Pages/Admin/Dashboard/Index.cshtml.cs
+      - src/dotnet/QuantEngine.Web/Pages/Admin/Collection/Index.cshtml.cs
+    outputs:
+      - Temp/wbs10_read_model_boundary.yaml
+    success_data:
+      schema: yaml
+      fields:
+        - projection
+        - source_of_truth
+        - refresh_mode
+        - staleness_budget
+      pass_condition: "조회 모델과 원장 모델의 경계가 설명됨"
+
+execution_order:
+  - WBS-10-WP1
+  - WBS-10-WP2
+  - WBS-10-WP3
+  - WBS-10-WP4
+
+notes:
+  - "이 문서는 실행 가능한 작업 분해용이며, 권위는 roadmap/inventory에 남긴다."
+  - "모든 success_data는 하네스가 아닌 착수 기준으로 사용한다."