Address review feedback: clarify approval gate before file creation

- Made step 11 explicitly a gate before file creation
- Added explicit conditional ("If user declines/approves") flow
- Added note at Phase 6 start: "Only execute this phase after user approval"
- Added error handling notes for directory creation and file writes

The step ordering was already correct (approval step 11 before file creation
steps 12-13), but the flow is now more explicit about the conditional nature.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

commands/create-capability.md

@@ -158,23 +158,31 @@ Create new capabilities for the architecture repository with validation and inte
     ```
     ```
 
-11. **Ask for approval**:
+11. **Ask for approval** (gate before file creation):
     - "Create these files? (y/n)"
     - If warnings exist: "There are warnings. Proceed anyway? (y/n)"
+    - **If user declines**: Stop here. Offer to adjust the generated content or cancel.
+    - **If user approves**: Proceed to Phase 6.
 
 ### Phase 6: Create Files
 
+**Only execute this phase after user approval in step 11.**
+
 12. **Create directories** if needed:
     ```bash
     mkdir -p skills/<name>
     mkdir -p agents/<name>
     ```
 
+    If directory creation fails, report the error and stop.
+
 13. **Write files** to correct locations:
     - `skills/<name>/SKILL.md`
     - `commands/<name>.md`
     - `agents/<name>/AGENT.md`
 
+    If any file write fails, report which files were created and which failed.
+
 14. **Report success**:
     ```
     ## Capability Created