I’m trying to use the new Sidekick app extensions . So I go on Use extensions to surface app data , but the first command shopify app generate extension --template app-tools --name tools doesn’t work: Unknown extension type: app-tools. …

New Sidekick App Extension shopify generate doesn't work

simposk December 10, 2025, 9:34pm 2

Topic		Replies	Views
Unknown extension type: app-tools (Sidekick) Extensions theme-app-extension	8	359	June 26, 2026
Sidekick App Data Extension Extensions admin-ui-extensions	4	189	December 19, 2025
shopify app generate extension --flavor error Extensions admin-ui-extensions	0	35	October 22, 2025
Shopify app development cannot recognize theme extensions Extensions theme-app-extension	7	197	November 11, 2025
App tools extension (admin.app.tools.data) not showing in Sidekick's Apps list during dev Extensions admin-ui-extensions	3	62	June 26, 2026