marketplace-add-extension

Original：🇺🇸 English

Translated

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.

2installs

Sourcevercel-labs/sitecore-skills

Added on2026-04-05

NPX Install

npx skill4agent add vercel-labs/sitecore-skills marketplace-add-extension

SKILL.md Content

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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