Borrowing it
Nothing to install: this file belongs to hookdeck/webhook-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/hookdeck/webhook-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/hookdeck/webhook-skillsWrote 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.
[](https://agentmods.dev/instructions/hookdeck/webhook-skills/agents-md)<a href="https://agentmods.dev/instructions/hookdeck/webhook-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/hookdeck/webhook-skills/agents-md/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.
<a href="https://agentmods.dev/instructions/hookdeck/webhook-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/hookdeck/webhook-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.08000 | $0.08000 |
| Opus 5.5 | $0.03200 | $0.03200 |
| Sonnet 5.5 | $0.01600 | $0.01600 |
| Haiku 4.5 | $0.00800 | $0.00800 |
Grade B, and why
webhook-skills AGENTS.md scanned grade B with 1 finding 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 16d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
--dangerously-skip-permissions cannot be used with root/sudo privileges for security reasons How it starts
The opening of the file, as written. The whole thing — 888 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI coding agents (Claude Code, Cursor, Copilot, etc.) when working with code in this repository.
Repository Overview
A community collection of webhook integration skills for AI coding agents. Skills provide step-by-step instructions for setting up webhook receivers, handling events, and integrating with the Hookdeck Event Gateway for reliable webhook infrastructure.
Repository Structure
webhook-skills/
├── README.md # Installation guide and skills overview
├── AGENTS.md # This file
├── TESTING.md # Testing documentation
├── LICENSE
├── scripts/
│ ├── test-examples.sh # Run example tests (all or specific skills)
│ └── test-agent-scenario.sh # Run agent integration tests
├── .github/
│ └── workflows/
│ └── test-examples.yml # CI pipeline
│
└── skills/
├── stripe-webhooks/
│ ├── SKILL.md
│ ├── references/
│ │ ├── overview.md # What Stripe webhooks are, common events
│ │ ├── setup.md # Configure in Stripe dashboard
│ │ └── verification.md # Signature verification details
│ └── examples/
│ ├── express/
│ │ ├── README.md # Entry point for this example
│ │ ├── package.json
│ │ ├── .env.example
│ │ └── src/ # Internal structure as needed
│ │ └── index.js
│ ├── nextjs/
│ │ └── ...
│ └── fastapi/
│ └── ...
│
├── shopify-webhooks/
│ ├── SKILL.md
│ ├── references/
│ │ ├── overview.md
│ │ ├── setup.md
│ │ └── verification.md
│ └── examples/
│ ├── express/
│ ├── nextjs/
│ └── fastapi/
│
├── github-webhooks/
│ ├── SKILL.md
│ ├── references/
│ │ ├── overview.md
│ │ ├── setup.md
│ │ └── verification.md
│ └── examples/
│ ├── express/
│ ├── nextjs/
│ └── fastapi/
│
├── webhook-handler-patterns/
│ ├── SKILL.md
│ └── references/
│ ├── idempotency.md
│ ├── error-handling.md
│ ├── retry-logic.md
│ └── frameworks/
│ ├── express.md
│ ├── nextjs.md
│ └── fastapi.md
│
└── hookdeck-event-gateway/
├── SKILL.md
├── references/
│ ├── 01-setup.md
│ ├── 02-scaffold.md
│ ├── 03-listen.md
│ ├── 04-iterate.md
│ ├── connections.md
│ └── verification.md
└── examples/
├── express/
├── nextjs/
└── fastapi/
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.
- 16d ago Changed · -4 lines · +128 tokens per session 8e36745e5d8d
- 2mo ago First seen · 892 lines · 7,872 tokens per session scan B eeb0932afd01
webhook-skills AGENTS.md is an instructions file published in the GitHub repository hookdeck/webhook-skills (98 stars, last pushed yesterday), licensed MIT. It adds 8,000 tokens to every session, about $0.0320 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
webhook-skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| webhook-skills AGENTS.mdhookdeck/webhook-skills | Instructions file | 98 | yesterday | MIT | B | 8,000 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |