webhook-skills: Instructions file for Codex

AGENTS.md

webhook-skills AGENTS.md is an instructions file for Codex, OpenCode from hookdeck/webhook-skills. It costs 8,000 tokens per session, scanned B, original, MIT.

Instructions for AI coding agents working in a collection of webhook integration skills. It explains the repository's layout, skill types, and testing approach.

In plain words
What is it for?
Use it when navigating the repository, working on webhook-handler patterns, or running example and agent integration tests.
Why use it?
It helps an agent understand the project before changing code or running its examples.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions .claude-plugin; mentions Claude Code; mentions AGENTS.md.

This is hookdeck/webhook-skills's own configuration. It tells Codex and OpenCode how to work on webhook-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything webhook-skills configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/hookdeck/webhook-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/hookdeck/webhook-skills

Made for: Codex, OpenCode.

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README.md
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Per session 8,000 This file is loaded in full into every session.
When invoked 8,000 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.08000 $0.08000
Opus 5.5 $0.03200 $0.03200
Sonnet 5.5 $0.01600 $0.01600
Haiku 4.5 $0.00800 $0.00800

Measured 16d ago against content hash 8e36745e5d8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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
AGENTS.md · 888 lines

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/

Read the full file on GitHub · 888 lines

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. 16d ago Changed · -4 lines · +128 tokens per session 8e36745e5d8d
  2. 2mo ago First seen · 892 lines · 7,872 tokens per session scan B eeb0932afd01

Subscribe to this mod's changes

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.

Related

webhook-skills AGENTS.md compared with instructions from other repositories

webhook-skills AGENTS.md next to 6 instructions from other repositories
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode