hookdeck/exact-online-webhooks
> Receive and verify Exact Online webhooks. Use when setting up Exact Online webhook handlers, debugging HashCode signature verification, subscribing to topics via the WebhookSubscriptions REST endpoint, or handling entity change events like Accounts, Items, StockPositions, FinancialTransactions, the signature is a HashCode field inside the JSON body (HMAC-SHA256 over the Content node, hex, uppercased), not an HTTP header.
npx skills add https://github.com/hookdeck/webhook-skills --skill exact-online-webhooks
Take hookdeck/exact-online-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.