diff --git a/specs/001-build-an-application/tasks.md b/specs/001-build-an-application/tasks.md
index d3ce158..6ed51ed 100644
--- a/specs/001-build-an-application/tasks.md
+++ b/specs/001-build-an-application/tasks.md
@@ -91,31 +91,31 @@
 
 ### Implementation for User Story 1
 
-- [ ] T040 [P] [US1] Create Product model in app/models/product.py with YAML loading
-- [ ] T041 [P] [US1] Create Feedback model in app/models/feedback.py with validation
-- [ ] T042 [US1] Implement FeedbackStorageService in app/services/feedback_storage.py (depends on T040, T041)
-- [ ] T043 [US1] Implement create_feedback method in FeedbackStorageService (UUID generation, directory creation)
-- [ ] T044 [US1] Implement save_metadata method in FeedbackStorageService (YAML writing)
-- [ ] T045 [US1] Implement save_content method in FeedbackStorageService (text file writing)
-- [ ] T046 [US1] Implement save_attachments method in FeedbackStorageService (file copying with sanitization)
-- [ ] T047 [US1] Integrate ClamAV scanning in app/utils/file_validator.py with clamd library
-- [ ] T048 [US1] Create submission routes blueprint in app/routes/submission.py
-- [ ] T049 [US1] Implement GET /submit/{product_slug} route returning submission form template
-- [ ] T050 [US1] Create submission form template in app/templates/submission_form.html
-- [ ] T051 [US1] Implement POST /submit/{product_slug} route with form handling
-- [ ] T052 [US1] Add validation logic in POST route (text or files required, max 3 files, etc.)
-- [ ] T053 [US1] Add file type validation in POST route using file_validator
-- [ ] T054 [US1] Add file size validation in POST route (max 10MB per file)
-- [ ] T055 [US1] Add ClamAV virus scanning in POST route before storage
-- [ ] T056 [US1] Integrate FeedbackStorageService in POST route to save feedback
-- [ ] T057 [US1] Add rate limiting decorator to POST route (10/hour/IP)
-- [ ] T058 [US1] Create success confirmation template in app/templates/submission_success.html
-- [ ] T059 [US1] Create error display template in app/templates/submission_error.html
-- [ ] T060 [US1] Add error handling for archived products (404 response)
-- [ ] T061 [US1] Add error handling for non-existent products (404 response)
-- [ ] T062 [US1] Register submission blueprint in app/__init__.py
-- [ ] T063 [US1] Create test product config.yaml in data/products/test-product/ for testing
-- [ ] T064 [US1] Verify no IP address logging in feedback metadata (FR-055 compliance)
+- [X] T040 [P] [US1] Create Product model in app/models/product.py with YAML loading
+- [X] T041 [P] [US1] Create Feedback model in app/models/feedback.py with validation
+- [X] T042 [US1] Implement FeedbackStorageService in app/services/feedback_storage.py (depends on T040, T041)
+- [X] T043 [US1] Implement create_feedback method in FeedbackStorageService (UUID generation, directory creation)
+- [X] T044 [US1] Implement save_metadata method in FeedbackStorageService (YAML writing)
+- [X] T045 [US1] Implement save_content method in FeedbackStorageService (text file writing)
+- [X] T046 [US1] Implement save_attachments method in FeedbackStorageService (file copying with sanitization)
+- [X] T047 [US1] Integrate ClamAV scanning in app/utils/file_validator.py with clamd library
+- [X] T048 [US1] Create submission routes blueprint in app/routes/submission.py
+- [X] T049 [US1] Implement GET /submit/{product_slug} route returning submission form template
+- [X] T050 [US1] Create submission form template in app/templates/submission_form.html
+- [X] T051 [US1] Implement POST /submit/{product_slug} route with form handling
+- [X] T052 [US1] Add validation logic in POST route (text or files required, max 3 files, etc.)
+- [X] T053 [US1] Add file type validation in POST route using file_validator
+- [X] T054 [US1] Add file size validation in POST route (max 10MB per file)
+- [X] T055 [US1] Add ClamAV virus scanning in POST route before storage
+- [X] T056 [US1] Integrate FeedbackStorageService in POST route to save feedback
+- [X] T057 [US1] Add rate limiting decorator to POST route (10/hour/IP)
+- [X] T058 [US1] Create success confirmation template in app/templates/submission_success.html
+- [X] T059 [US1] Create error display template in app/templates/submission_error.html
+- [X] T060 [US1] Add error handling for archived products (404 response)
+- [X] T061 [US1] Add error handling for non-existent products (404 response)
+- [X] T062 [US1] Register submission blueprint in app/__init__.py
+- [X] T063 [US1] Create test product config.yaml in data/products/test-product/ for testing
+- [X] T064 [US1] Verify no IP address logging in feedback metadata (FR-055 compliance)
 
 **Checkpoint**: At this point, User Story 1 should be fully functional - anonymous feedback submission works end-to-end