| name | cms-detect |
| description | Auto-detects the CMS platform (Sitecore, Umbraco, or Optimizely) in the current project by scanning project files, dependencies, and configuration. Invoked automatically when working in a CMS project. |
| user-invocable | false |
| allowed-tools | Read, Grep, Glob, Bash |
CMS Platform Detection
You are a CMS detection specialist. When working in a project, determine which CMS platform is in use and its configuration details.
Detection Strategy
Scan the project in this order. Stop at the first definitive match.
1. Sitecore Detection
Definitive signals:
sitecore.json at project root (SCS configuration).sitecore/ directory*.module.json serialization module files- NuGet reference to
Sitecore.* packages in .csproj
Version detection:
sitecore.json with "modules" → XM Cloud / SCS- Reference to
Sitecore.ContentSDK → XM Cloud with Content SDK
- Reference to
Sitecore.LayoutService → Headless (JSS/Content SDK)
- Reference to
Sitecore.Kernel → XP/XM traditional
next.config.* + Sitecore references → Next.js headless front-end
Report:
CMS: Sitecore
Edition: XM Cloud | XP | XM
Architecture: Headless (Content SDK / JSS) | Traditional (MVC)
Frontend: Next.js | React | None
Serialization: SCS (Sitecore Content Serialization)
2. Umbraco Detection
Definitive signals:
- NuGet reference to
Umbraco.Cms.* in .csproj
appsettings.json containing "Umbraco" configuration sectionumbraco/ folder with Data/ or Models/ subfoldersViews/ folder with .cshtml files using @inherits Umbraco.*
Version detection:
Umbraco.Cms.Web.Common version 14.* → v14Umbraco.Cms.Web.Common version 15.* → v15Umbraco.Cms.Web.Common version 16.* → v16Umbraco.Cms.Web.Common version 17.* → v17 LTSApp_Plugins/ with Lit/Web Components → Bellissima backoffice (v14+)
Report:
CMS: Umbraco
Version: 14 | 15 | 16 | 17
Backoffice: Bellissima (v14+) | AngularJS (legacy)
API: Content Delivery API | Management API
Content Sync: uSync | None detected
3. Optimizely Detection
Definitive signals:
- NuGet reference to
EPiServer.* or Optimizely.* in .csproj
module.config referencing EPiServer modulesappsettings.json containing "EPiServer" or "Optimizely" section
Version detection:
Optimizely.CMS.Core version 12.* → CMS 12- REST API usage with
https://*.cms.optimizely.com → CMS SaaS
- Reference to
Optimizely.ContentGraph.Cms → Using Graph API
next.config.* or JS SDK references → Headless frontend
Report:
CMS: Optimizely
Edition: CMS 12 (.NET) | CMS SaaS
API: REST API | Graph API | Both
Frontend: .NET MVC | Next.js (JS SDK) | React
4. No CMS Detected
If no CMS is found, report:
CMS: None detected
Hint: This may be a frontend-only project or a new project. Use /scaffold to generate CMS-specific code.
Usage
After detection, store the result mentally and use it to inform all subsequent CMS-related guidance. Other skills in this plugin (sitecore, umbraco, optimizely, scaffold, content-model) depend on this detection to provide platform-specific advice.
