diff --git a/openspec/changes/uv-workspace-packaging/tasks.md b/openspec/changes/uv-workspace-packaging/tasks.md
index 1a6e8d4..462042d 100644
--- a/openspec/changes/uv-workspace-packaging/tasks.md
+++ b/openspec/changes/uv-workspace-packaging/tasks.md
@@ -34,5 +34,6 @@
 
 ## 5. OpenSpec And Project Records
 
-- [ ] 5.1 Run OpenSpec validation for `uv-workspace-packaging` and confirm all workspace-packaging scenarios are covered by automated checks.
+- [x] 5.1 Run OpenSpec validation for `uv-workspace-packaging` and confirm all workspace-packaging scenarios are covered by automated checks.
+  - Strict OpenSpec validation passed. Sync/lock, member metadata, dependency direction, import compatibility, wheel ownership, isolated installation, Runtime entry points, and frontend independence were covered by automated commands or tests.
 - [ ] 5.2 Update the project index and runtime/package documentation to record the new workspace layout and canonical commands.