Marketplace Add Extension

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:

• Go to Developer Portal → Your App → Extension Points
• Click "Add Extension Point"
• 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