Webhooks, Queues & Async Delivery
Build and repair asynchronous delivery across webhooks, queues, background jobs, events, and email workflows. This bundle covers webhook implementation and signatures, safe endpoint changes, job processing, retry contracts, poison-message loops, lost events, and email-suppression behavior. Use it when delivery can be delayed, duplicated, dropped, retried incorrectly, or rejected at boundaries between producers, workers, providers, and consumers.
Works with every agent that reads SKILL.md — Claude Code, Cursor, Codex CLI, Gemini CLI, GitHub Copilot, Windsurf, OpenClaw, and more.
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What's included
8 skillsAutomatically add secure webhook integrations to existing apps.
Repair webhook-signature contract drift in a repository using Cursor.
Plan customer webhook endpoint changes without losing, duplicating, reordering, or accepting forged events.
Automatically add background jobs, queues, and scheduled tasks to existing apps.
Repair background-job retry drift in a repository using Cursor.
Repair queue consumers where one bad message loops forever, blocks healthy traffic, or repeatedly crashes the same partition.
Trace and repair events that disappear between producers, outboxes, brokers, consumers, retries, checkpoints, and databases.
Repair suppression drift across consent, unsubscribe, bounce, complaint, recipient identity, provider events, queues, caches, tests, and docs.
See it in action
You say
Add an incoming Stripe webhook handler to my Express app to handle 'checkout.session.completed' events. Ensure it verifies signatures and uses the existing Redis queue for processing.
Your agent does
Project Detected: Node.js / Express
Webhook Integration Added:
- Stripe
- Incoming
- checkout.session.completed
Security Controls:
- stripe-signature verification via raw-body middleware
- STRIPE_WEBHOOK_SECRET env reference
Reliability Controls:
- Idempotency check via event ID
- Processing offloaded to BullMQ queue
Files Modified:
- src/routes/webhooks.js
- src/middleware/verifyStripe.js
- .env.example
Commands Executed:
- npm install stripe
Validation Result: Signature logic and route parsing verified with local mock.
How to Test: npm test src/routes/webhooks.test.js
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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