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webhook-reliability

webhook-reliability is a skill for Claude Code, Codex from appeeky/stripe-skills. It costs 52 tokens per session (367 once invoked), scanned A, original, MIT.

A checklist for checking whether Stripe payment notifications, called webhooks, arrive and are handled correctly. Webhooks are messages Stripe sends to an application when events such as payments or subscription changes occur.

In plain words
What is it for?
Use it to audit subscription checkout, renewals, failed invoices, plan changes, cancellations, and other Stripe webhook flows.
Why use it?
It helps find failed deliveries, missing event handlers, and duplicate-processing risks that can leave payments and user access out of sync.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 5repo 3mo ago A scan 52 tokens original MIT

Good fit Use it to audit subscription checkout, renewals, failed invoices, plan changes, cancellations, and other Stripe webhook flows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/appeeky/stripe-skills/webhook-reliability
View source ↗ appeeky/stripe-skills appeeky.com
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add appeeky/stripe-skills --skill webhook-reliability
Clone the repo
git clone --depth 1 https://github.com/appeeky/stripe-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for webhook-reliability

README.md
[![agentmods](https://agentmods.dev/badge/skills/appeeky/stripe-skills/webhook-reliability/github.svg)](https://agentmods.dev/skills/appeeky/stripe-skills/webhook-reliability)
Your own site
<a href="https://agentmods.dev/skills/appeeky/stripe-skills/webhook-reliability"><img src="https://agentmods.dev/badge/skills/appeeky/stripe-skills/webhook-reliability/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for webhook-reliability

Your own site · 80×15
<a href="https://agentmods.dev/skills/appeeky/stripe-skills/webhook-reliability"><img src="https://agentmods.dev/badge/skills/appeeky/stripe-skills/webhook-reliability.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 367 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.00367
Opus 5.5 $0.00021 $0.00147
Sonnet 5.5 $0.00010 $0.00073
Haiku 4.5 $0.00005 $0.00037

Measured 2mo ago against content hash 9a33f377dcf6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

webhook-reliability scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/webhook-reliability/SKILL.md · 47 lines

What it actually says

Webhook Reliability

Stripe MCP Setup

Requires Stripe MCP connected via OAuth or restricted key. Docs: https://docs.stripe.com/mcp

  1. GetMcpTools with server: "user-Stripe" (or plugin-stripe-stripe) before any call
  2. Prefer stripe_api_search → stripe_api_details → stripe_api_read for list/retrieve
  3. Always paginate — limit: 100, follow has_more with starting_after
  4. Amounts are in cents unless noted
  5. Never expose secret keys in output

Workflow

  1. Dashboard: Developers → Webhooks → recent deliveries (user may paste errors)
  2. Codebase grep: stripe.webhooks, checkout.session.completed, customer.subscription, invoice.payment_failed
  3. Required events for subscription SaaS:
Event Purpose
checkout.session.completed Provision access
customer.subscription.updated Plan/status sync
customer.subscription.deleted Revoke access
invoice.payment_failed Dunning email / banner
invoice.paid Confirm renewal

Output Template

Webhook Audit

Endpoint(s): [urls from code]
Handled events: [list]
Missing critical: [list]
Failed deliveries (if known): [summary]

Fix priority:
1. ...
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 47 lines · 52 tokens per session scan A 9a33f377dcf6

Subscribe to this mod's changes

webhook-reliability is a skill published in the GitHub repository appeeky/stripe-skills (5 stars, last pushed 3mo ago), licensed MIT. It adds 52 tokens to every session and 367 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Backend and APIsE-commerceskillsstripestripe-skills
Related

webhook-reliability compared with skills from other repositories

webhook-reliability next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
webhook-reliabilityappeeky/stripe-skillsSkill53mo agoMITA52Claude Code, Codex
commerce-app-business-configadobe/skillsSkill319yesterdayApache-2.0A80Claude Code
commerce-app-api-meshadobe/skillsSkill319yesterdayApache-2.0A100Claude Code
doku-payment-gatewayroedyrustam/vibes-plugSkill121yesterdayMITA45Cursor
wcs-subscription-hooksLonsdale201/wp-agent-skillsSkill2617d agoMITA106Claude Code, Codex
wcs-renewal-schedulerLonsdale201/wp-agent-skillsSkill2617d agoMITA85Claude Code, Codex
br-woo-routesLonsdale201/wp-agent-skillsSkill2617d agoMITA70Claude Code, Codex