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name: marketplace-add-extension description: Adds a new extension point route to a Sitecore Marketplace app. Use when the user wants to add a custom field, dashboard widget, context panel, fullscreen page, or standalone route. argument-hint: "[extension-type]"

Add an Extension Point Route

You are helping the user add a new extension point to their Sitecore Marketplace app.

Step 1: Determine Extension Type

Ask the user which type (or infer from $ARGUMENTS):

Type	Slug	Description	Typical Size
Custom Field	custom-field	Inline field in content editor	~300px wide
Dashboard Widget	dashboard-widget	Widget on the dashboard	~400x300px
Pages Context Panel	pages-context-panel	Side panel in Pages editor	~350px wide, full height
Fullscreen	fullscreen	Full-page within Sitecore shell	Full viewport
Standalone	standalone	Independent page	Full viewport

Step 2: Generate the Route

Create the route at app/<extension-type>/page.tsx (or a custom path the user prefers).

See extension-types.md for complete boilerplate templates for each extension type.

Step 3: Register in Developer Portal

Remind the user to register the extension point in the Sitecore Developer Portal:

1. Go to Developer Portal → Your App → Extension Points
2. Click "Add Extension Point"
3. Select the type and set the route path (e.g., /custom-field)

Step 4: Suggest Next Steps

• Use /marketplace-build-component to build out the UI
• Use /marketplace-sdk-reference to look up available queries/mutations for this extension type
• Use /marketplace-add-xmc if the extension needs XM Cloud data

Reference Files

• Extension Types — Boilerplate templates for each extension type