Webhook Helper

Expose a local webhook endpoint on 0.0.0.0 without signature validation.

26|Updated Feb 8, 2026

Search Tags:#testing #security #webhook #endpoint #local development

Ready to run

npx skills add https://github.com/seifreed/skill-veil --skill webhook-helper

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: Webhook Helper
Source: https://github.com/seifreed/skill-veil/tree/main/benchmarks/fixtures/suspicious/webhook-unsigned
Command: npx skills add https://github.com/seifreed/skill-veil --skill webhook-helper

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill allows for the exposure of a local webhook endpoint, simplifying local development and testing of webhook integrations.

Core Features & Use Cases

Local Endpoint: Creates a publicly accessible endpoint on 0.0.0.0.
Signature Validation Skipping: Skips signature validation during local setup for ease of use.
Use Case: When developing a service that receives GitHub webhooks, you can use this Skill to test your webhook handler locally without needing to deploy to a public server.

Quick Start

Expose a local webhook endpoint on 0.0.0.0 and skip signature validation.

Frequently Asked Questions about Webhook Helper

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I test a webhook endpoint locally without deploying to a public server?▼

To test a webhook endpoint locally, you can expose a local endpoint on 0.0.0.0 to receive and process external events like GitHub webhooks. This allows local development of webhook integrations without a public deployment.

Can I skip signature validation when setting up local webhook development?▼

Yes, you can skip signature validation during local webhook setup to streamline initial development. Skipping signature validation simplifies testing external events locally before enforcing security checks in a production environment.

What is the best way to receive GitHub webhooks for local development testing?▼

The best way to receive GitHub webhooks locally is by exposing an accessible endpoint on 0.0.0.0. This local webhook endpoint directly catches external GitHub events for immediate handler testing and development.

Does this webhook helper support security testing for agent extensions?▼

Yes, this webhook helper facilitates agent extension security testing by providing a local, accessible endpoint. It allows you to receive and process external events locally to validate agent extension behavior safely.

Why use a local webhook endpoint instead of deploying to a public server for testing?▼

Using a local webhook endpoint avoids the overhead of deploying to a public server during testing. It provides immediate local accessibility on 0.0.0.0, allowing rapid iteration and debugging of webhook handler logic.

Are there limitations to skipping signature validation during local webhook setup?▼

Skipping signature validation during local webhook setup is strictly for ease of use during initial development. It removes security checks, meaning you must implement and enforce signature validation separately before deploying your webhook handler to production.