webhooks-design SKILL.md skillA

webhooks-design from amey-thakur/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add amey-thakur/ai-skills/webhooks-design@git:20260720.1dc980e

Pins git:20260720.1dc980e in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
amey-thakur/ai-skills
Path
skills/backend/webhooks-design/SKILL.md
Versions recorded
1
Latest version
git:20260720.1dc980e, committed Jul 20, 2026
Size
2,507 bytes
Repository stars
14
License
MIT

Deliver webhooks with signatures, retries, and ordering rules consumers can actually build against. Use when adding webhooks to a product or hardening delivery and verification on either side.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Webhooks design

A webhook program is a promise about delivery semantics. State the
promise precisely (at-least-once, possibly out of order, within N hours)
and build both sides to it.

## Method

1. **Send facts, fetch details.** Payload carries event type, IDs,
   timestamps, and a version; consumers fetch the full object if needed.
   Thin payloads survive schema evolution and avoid shipping stale or
   sensitive data to endpoints you do not control.
2. **Sign with a shared-secret HMAC over timestamp + body.**
   `signature: t=1712..., v1=hex(hmac_sha256(secret, t + "." + body))`.
   The timestamp bounds replay (reject > 5 minutes old); constant-time
   compare; support two active secrets for rotation.
3. **Retry on schedule, disable on despair.** Anything but a 2xx within
   a short timeout (5-10s) is a failure; retry with exponential backoff
   over 24-72 hours. After exhaustion, mark the endpoint failing, notify
   the owner, and auto-disable persistent offenders; expose recent
   deliveries and a manual redeliver in the dashboard.
4. **Guarantee at-least-once, number the events.** Do not promise
   ordering; parallel delivery and retries reorder everything. Give each
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add amey-thakur/ai-skills/webhooks-design@sha256:4c0c75b51a99b516

The line at the top of this page pins the label git:20260720.1dc980e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bjjzo7q6zhmvxu5a.svg)](https://markdownregistry.com/a/art_bjjzo7q6zhmvxu5a)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jul 20, 2026.

versioncommittedcommitsizeaudit
git:20260720.1dc980e latest2026-07-20 1dc980e 2,507 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2507 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

amey-thakur/ai-skills · 14 stars · license MIT · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bjjzo7q6zhmvxu5a
GET https://markdownregistry.com/api/v1/resolve?ref=amey-thakur/ai-skills/webhooks-design
GET https://markdownregistry.com/api/v1/blob/4c0c75b51a99b516c325ade44c870f527be58853f6f82c0f4e56c5f5c0c82212

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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