Individual skill

ideogram-webhooks-events

Verify and reconcile Ideogram async webhooks with Ed25519 signatures, replay controls, deduplication, and polling fallback. Use when implementing or auditing an event receiver. Trigger with "verify an Ideogram webhook", "build Ideogram async callbacks", or "debug duplicate Ideogram events".

plugins/saas-packs/ideogram-pack/skills/ideogram-webhooks-events/SKILL.md

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# Ideogram Webhook Verification and Reconciliation

## Overview

Accept Ideogram asynchronous completion only after cryptographic verification and idempotent reconciliation. Use the raw request body, bind all signed headers, acknowledge quickly, and retain polling as a recovery path because delivery is not guaranteed.

## Prerequisites

- A public HTTPS receiver, raw-body access, durable event store, queue, and clock.
- The submitted `generation_id`, destination object policy, and polling reconciler.
- Local Ed25519 fixtures for valid, invalid, stale, duplicate, and rotated-key deliveries.

## Current Contract

Async requests can include a webhook URL and return `generation_id`. Ideogram signs callbacks with Ed25519 and publishes keys at `https://api.ideogram.ai/v1/.well-known/jwks.json`. Signed headers identify generation, user, timestamp, key, and signature. Deliveries may duplicate, retries are limited, and polling remains necessary.
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