diff --git a/README.md b/README.md
index a410b85..0ff5457 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ The product centers on support tickets and business knowledge, with configurable
 
 ## Current Status
 
-Active implementation. The project has a runnable Django + React baseline with enterprise governance, shadcn-based frontend foundation, Docker Compose local startup, category-driven ticket workflows, and reusable solution adoption for fast ticket closure.
+Active implementation. The project has a runnable Django + React baseline with enterprise governance, shadcn-based frontend foundation, Docker Compose local startup, category-driven ticket workflows, reusable solution adoption for fast ticket closure, and a knowledge base and retrieval baseline.
 
 Key docs:
 
diff --git a/docs/frontend/design-system.md b/docs/frontend/design-system.md
index c6cbb2c..63b3281 100644
--- a/docs/frontend/design-system.md
+++ b/docs/frontend/design-system.md
@@ -71,6 +71,8 @@ Business pages should use:
 - Ticket status transitions use `TicketTransitionDialog`. Resolution and closure actions can carry a solution summary; non-resolution workflow actions still require a handling note.
 - Ticket workflows are category-driven: business and operation issues support short closure paths, data issues use a medium path, and technical issues keep the standard support workflow.
 - Linked solutions support search, recommendation-only linking, adoption with automatic ticket closure, and prefilled resolution text during later resolve/close actions.
+- Knowledge pages use the same `AppPage`, `AppSection`, `AppDataTable`, `AppField`, and shadcn form primitives as ticket and system pages.
+- Knowledge search results must show source type, title, score, and citable content snippets.
 - System governance quick-create forms use `AppSection`, `FieldGroup`, and `AppField`.
 
 Preview page:
diff --git a/docs/superpowers/plans/2026-07-03-stage-2-knowledge-vector-retrieval.md b/docs/superpowers/plans/2026-07-03-stage-2-knowledge-vector-retrieval.md
index 4e2f2a4..826db27 100644
--- a/docs/superpowers/plans/2026-07-03-stage-2-knowledge-vector-retrieval.md
+++ b/docs/superpowers/plans/2026-07-03-stage-2-knowledge-vector-retrieval.md
@@ -57,7 +57,7 @@ Docs:
 - Modify: `backend/config/settings/base.py`
 - Modify: `backend/config/urls.py`
 
-- [ ] **Step 1: Write failing CRUD tests**
+- [x] **Step 1: Write failing CRUD tests**
 
 Create `backend/apps/knowledge/tests/test_knowledge_api.py`:
 
@@ -133,7 +133,7 @@ def test_ingest_document_text_creates_document_and_chunks(admin_client, db):
     assert KnowledgeChunk.objects.filter(document=document).count() >= 1
 ```
 
-- [ ] **Step 2: Run tests to verify RED**
+- [x] **Step 2: Run tests to verify RED**
 
 Run:
 
@@ -143,7 +143,7 @@ python -m pytest backend\apps\knowledge\tests\test_knowledge_api.py -v
 
 Expected: fails because `apps.knowledge` and `/api/knowledge/*` routes do not exist.
 
-- [ ] **Step 3: Create models**
+- [x] **Step 3: Create models**
 
 Create `backend/apps/knowledge/models.py`:
 
@@ -258,7 +258,7 @@ class KnowledgeChunk(models.Model):
         ]
 ```
 
-- [ ] **Step 4: Register app and router**
+- [x] **Step 4: Register app and router**
 
 Create `backend/apps/knowledge/apps.py`:
 
@@ -299,7 +299,7 @@ from apps.knowledge.api import router as knowledge_router
 api.add_router("/knowledge", knowledge_router)
 ```
 
-- [ ] **Step 5: Add schemas**
+- [x] **Step 5: Add schemas**
 
 Create `backend/apps/knowledge/schemas.py`:
 
@@ -373,7 +373,7 @@ class KnowledgeItemOut(Schema):
     updated_at: datetime
 ```
 
-- [ ] **Step 6: Implement CRUD API**
+- [x] **Step 6: Implement CRUD API**
 
 Create `backend/apps/knowledge/api.py`:
 
@@ -459,7 +459,7 @@ def create_knowledge_document(request, payload: KnowledgeDocumentIn):
     )
 ```
 
-- [ ] **Step 7: Create migrations**
+- [x] **Step 7: Create migrations**
 
 Run:
 
@@ -470,7 +470,7 @@ python manage.py makemigrations knowledge
 
 Expected: creates `backend/apps/knowledge/migrations/0001_initial.py`.
 
-- [ ] **Step 8: Verify GREEN**
+- [x] **Step 8: Verify GREEN**
 
 Run:
 
@@ -481,7 +481,7 @@ python -m ruff check backend\apps\knowledge backend\config
 
 Expected: CRUD tests pass and ruff has no issues.
 
-- [ ] **Step 9: Commit**
+- [x] **Step 9: Commit**
 
 Run:
 
@@ -501,7 +501,7 @@ git commit -m "feat: add knowledge base core api"
 - Modify: `backend/apps/knowledge/api.py`
 - Modify: `backend/apps/solutions/api.py`
 
-- [ ] **Step 1: Write failing retrieval tests**
+- [x] **Step 1: Write failing retrieval tests**
 
 Create `backend/apps/knowledge/tests/test_retrieval.py`:
 
@@ -561,7 +561,7 @@ def test_published_solution_can_be_indexed_for_retrieval(db):
     assert chunks[0].metadata["solution_id"] == solution.id
 ```
 
-- [ ] **Step 2: Run tests to verify RED**
+- [x] **Step 2: Run tests to verify RED**
 
 Run:
 
@@ -571,7 +571,7 @@ python -m pytest backend\apps\knowledge\tests\test_retrieval.py -v
 
 Expected: fails because retrieval services do not exist.
 
-- [ ] **Step 3: Implement chunking and embedding services**
+- [x] **Step 3: Implement chunking and embedding services**
 
 Create `backend/apps/knowledge/services.py`:
 
@@ -733,7 +733,7 @@ def retrieve_knowledge(query: str, knowledge_base_id: int | None = None, limit:
     ]
 ```
 
-- [ ] **Step 4: Add retrieval schemas and API**
+- [x] **Step 4: Add retrieval schemas and API**
 
 Append to `backend/apps/knowledge/schemas.py`:
 
@@ -771,7 +771,7 @@ def search_knowledge(request, payload: KnowledgeSearchIn):
     )
 ```
 
-- [ ] **Step 5: Index published solutions on create**
+- [x] **Step 5: Index published solutions on create**
 
 Modify `backend/apps/solutions/api.py` in `create_solution`:
 
@@ -794,7 +794,7 @@ if solution.status == "published":
 return solution
 ```
 
-- [ ] **Step 6: Verify GREEN**
+- [x] **Step 6: Verify GREEN**
 
 Run:
 
@@ -805,7 +805,7 @@ python -m ruff check backend\apps\knowledge backend\apps\solutions
 
 Expected: tests pass and ruff has no issues.
 
-- [ ] **Step 7: Commit**
+- [x] **Step 7: Commit**
 
 Run:
 
@@ -827,7 +827,7 @@ git commit -m "feat: add knowledge retrieval service"
 - Modify: `frontend/src/app/router.tsx`
 - Modify: `frontend/src/components/app/AppSidebar.tsx`
 
-- [ ] **Step 1: Create frontend types**
+- [x] **Step 1: Create frontend types**
 
 Create `frontend/src/features/knowledge/types.ts`:
 
@@ -866,7 +866,7 @@ export type KnowledgeSearchResult = {
 }
 ```
 
-- [ ] **Step 2: Create frontend API**
+- [x] **Step 2: Create frontend API**
 
 Create `frontend/src/features/knowledge/api.ts`:
 
@@ -910,7 +910,7 @@ export function searchKnowledge(query: string, knowledgeBaseId?: number) {
 }
 ```
 
-- [ ] **Step 3: Create knowledge base list page**
+- [x] **Step 3: Create knowledge base list page**
 
 Create `frontend/src/features/knowledge/KnowledgeBaseListPage.tsx` using `AppPage`, `AppPageHeader`, `AppSection`, `AppDataTable`, `AppField`, `Input`, and `Button`.
 
@@ -929,7 +929,7 @@ Required Chinese UI:
 
 The quick-create form posts to `createKnowledgeBase`, reloads `listKnowledgeBases`, and clears the form.
 
-- [ ] **Step 4: Create knowledge item editor**
+- [x] **Step 4: Create knowledge item editor**
 
 Create `frontend/src/features/knowledge/KnowledgeItemEditorPage.tsx` using existing `AppField`, `Input`, `Textarea`, `Select`, `SelectGroup`, and `Button`.
 
@@ -963,7 +963,7 @@ Required Chinese sections:
 
 On success, navigate to `#/knowledge/search`.
 
-- [ ] **Step 5: Create knowledge search page**
+- [x] **Step 5: Create knowledge search page**
 
 Create `frontend/src/features/knowledge/KnowledgeSearchPage.tsx` using `AppPage`, `AppPageHeader`, `AppSection`, `Input`, `Button`, `Badge`, and `Card`.
 
@@ -991,7 +991,7 @@ Required Chinese UI:
 暂无检索结果
 ```
 
-- [ ] **Step 6: Wire routes**
+- [x] **Step 6: Wire routes**
 
 Modify `frontend/src/app/router.tsx`:
 
@@ -1013,7 +1013,7 @@ if (route === '/knowledge/search') {
 }
 ```
 
-- [ ] **Step 7: Add sidebar navigation**
+- [x] **Step 7: Add sidebar navigation**
 
 Modify `frontend/src/components/app/AppSidebar.tsx` to add Chinese knowledge menu entries under the existing navigation group:
 
@@ -1024,7 +1024,7 @@ Modify `frontend/src/components/app/AppSidebar.tsx` to add Chinese knowledge men
 
 Use lucide icons already available in `lucide-react`.
 
-- [ ] **Step 8: Verify frontend**
+- [x] **Step 8: Verify frontend**
 
 Run:
 
@@ -1035,7 +1035,7 @@ npm run build
 
 Expected: both commands pass.
 
-- [ ] **Step 9: Commit**
+- [x] **Step 9: Commit**
 
 Run:
 
@@ -1053,7 +1053,7 @@ git commit -m "feat: add knowledge management pages"
 - Modify: `docs/frontend/design-system.md`
 - Modify: `docs/superpowers/plans/2026-07-03-stage-2-knowledge-vector-retrieval.md`
 
-- [ ] **Step 1: Run backend verification**
+- [x] **Step 1: Run backend verification**
 
 Run:
 
@@ -1071,7 +1071,7 @@ all selected tests pass
 All checks passed!
 ```
 
-- [ ] **Step 2: Run frontend verification**
+- [x] **Step 2: Run frontend verification**
 
 Run:
 
@@ -1082,7 +1082,7 @@ npm run build
 
 Expected: TypeScript and Vite build succeed.
 
-- [ ] **Step 3: Run database migration locally**
+- [x] **Step 3: Run database migration locally**
 
 Run:
 
@@ -1093,7 +1093,7 @@ python manage.py migrate
 
 Expected: `knowledge.0001_initial` is applied.
 
-- [ ] **Step 4: Update README current status**
+- [x] **Step 4: Update README current status**
 
 Modify `README.md` current status sentence to include:
 
@@ -1101,7 +1101,7 @@ Modify `README.md` current status sentence to include:
 knowledge base and retrieval baseline
 ```
 
-- [ ] **Step 5: Update frontend design system**
+- [x] **Step 5: Update frontend design system**
 
 Modify `docs/frontend/design-system.md` under `Current Core Screens`:
 
@@ -1110,11 +1110,11 @@ Modify `docs/frontend/design-system.md` under `Current Core Screens`:
 - Knowledge search results must show source type, title, score, and citable content snippets.
 ```
 
-- [ ] **Step 6: Mark plan complete**
+- [x] **Step 6: Mark plan complete**
 
 In this plan file, mark completed task checkboxes as `[x]` after successful execution.
 
-- [ ] **Step 7: Commit**
+- [x] **Step 7: Commit**
 
 Run:
 
@@ -1127,16 +1127,16 @@ git commit -m "docs: sync stage 2 knowledge progress"
 
 ## Final Review Checklist
 
-- [ ] `apps.knowledge` exists and is registered in Django settings.
-- [ ] Knowledge bases can be created and listed through API.
-- [ ] Knowledge items create chunks.
-- [ ] Document text ingestion creates chunks.
-- [ ] Published solutions can be indexed as knowledge chunks.
-- [ ] Retrieval returns citable chunk results with source metadata.
-- [ ] Frontend has Chinese knowledge base, item creation, and search pages.
-- [ ] Sidebar exposes knowledge navigation.
-- [ ] Backend tests pass.
-- [ ] Backend ruff passes.
-- [ ] Frontend typecheck passes.
-- [ ] Frontend build passes.
-- [ ] README and design-system docs reflect Stage 2 behavior.
+- [x] `apps.knowledge` exists and is registered in Django settings.
+- [x] Knowledge bases can be created and listed through API.
+- [x] Knowledge items create chunks.
+- [x] Document text ingestion creates chunks.
+- [x] Published solutions can be indexed as knowledge chunks.
+- [x] Retrieval returns citable chunk results with source metadata.
+- [x] Frontend has Chinese knowledge base, item creation, and search pages.
+- [x] Sidebar exposes knowledge navigation.
+- [x] Backend tests pass.
+- [x] Backend ruff passes.
+- [x] Frontend typecheck passes.
+- [x] Frontend build passes.
+- [x] README and design-system docs reflect Stage 2 behavior.