hookdeck/square-webhooks
> Receive and verify Square webhooks. Use when setting up Square webhook handlers, debugging Square signature verification, or handling payment and commerce events like payment.created, payment.updated, refund.created, invoice.payment_made, or order.updated.
npx skills add https://github.com/hookdeck/webhook-skills --skill square-webhooks
Take hookdeck/square-webhooks from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.
The instructions reference npx.
Without those the skill loads but fails at the first command.