Umbraco Review Checks

This is a reference skill that loads validation rules for the umbraco-extension-reviewer agent to check Umbraco backoffice extensions. It organizes 22 checks across code quality, architecture, and UI patterns, covering things like manifest registration, context API usage, repository patterns, and UUI component compliance. The severity ratings and auto-fix flags give you a quick sense of what matters most. It's basically a rulebook, not something you'd use directly, but if you're building extensions or writing your own review tooling, it shows you exactly what patterns the Umbraco team cares about. The skill intelligently checks for local CMS source code before hitting GitHub, which is a nice touch for offline work.

skills.sh installs: 397
GitHub stars: 27
last updated: Aug 21, 2026

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Install

$ npx -y skills add umbraco/umbraco-cms-backoffice-skills --skill umbraco-review-checks --agent claude-code

Installs into .claude/skills of the current project.

Files

Umbraco Extension Review Checks

Reference skill containing all review checks for the umbraco-extension-reviewer agent.

Check Categories

Category	File	Checks
Code Quality	`code-quality-checks.md`	CQ-1 to CQ-9
Architecture	`architecture-checks.md`	AR-1 to AR-6
UI Patterns	`ui-pattern-checks.md`	UI-1 to UI-7

Quick Reference

ID	Check	Severity	Auto-Fix
Code Quality
CQ-1	Extension Type Usage	Critical	Yes
CQ-2	Manifest Registration	High	No
CQ-3	Element Implementation	Medium	Partial
CQ-4	Context API Usage	High	No
CQ-5	State Management	Medium	No
CQ-6	Localization	Medium	Partial
CQ-7	Naming Conventions	Low	No
CQ-8	Conditions	Low	No
CQ-9	Property Editor Schema Alias	Critical	No
Architecture
AR-1	Direct API Client Access	High	No
AR-2	No Workspace Context	High	No
AR-3	Source Pattern Verification	Medium	No
AR-4	Inconsistent Persistence	Medium	No
AR-5	Missing Repository Layer	High	No