# No External API Changes

Spec 149 hardens internal queued-execution behavior only.

## Contract Statement

- No new public HTTP API is introduced.
- No existing Filament route, admin page path, or canonical Monitoring route changes in this slice.
- Existing operator entry points continue to enqueue runs through current action surfaces.
- Existing Monitoring routes continue to display `OperationRun` truth; the changed contract is the meaning of blocked execution, not the route shape.

## Internal Surface Impact

- Start surfaces keep current action labels and links.
- `/admin/operations` and `/admin/operations/{run}` keep current paths.
- Changes are limited to queue execution semantics, run outcome meaning, and audit or notification consistency.