spider-king

Reverse engineer web applications into Python protocol collectors.

20|4|Updated May 24, 2026

Search Tags:#browser-free #web reverse engineering #protocol collection #Python collector #complex web application analysis

Ready to run

npx skills add https://github.com/Big-fat-dog/js-spider --skill spider-king-big-fat-dog

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: spider-king
Source: https://github.com/Big-fat-dog/js-spider/tree/main/.trae/skills/spider-king
Command: npx skills add https://github.com/Big-fat-dog/js-spider --skill spider-king-big-fat-dog

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires chrome-devtools, js-reverse, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps reverse engineer complex web applications, transforming browser-dependent behavior into stable, browser-free protocol collectors.

Core Features & Use Cases

Protocol Reverse Engineering: Extracts and decodes complex web interactions into pure protocol data, suitable for automated testing and analysis.
Browser-Free Collectors: Delivers Python-based collectors that operate independently of the browser, ensuring reliability and maintainability.
Use Case: Imagine you have a web application that requires complex interactions and heavy browser-side processing. Use this Skill to identify the real requests, decode the dynamic states, and generate a Python collector to interact with the application directly via the protocol.

Quick Start

Use the spider-king skill to reverse engineer the 'example-website.com' and generate a Python collector for it.

Frequently Asked Questions about spider-king

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

FAQPage Schema

How do I build a browser-free Python collector for a complex web application?▼

To build a browser-free Python collector, you must reverse engineer the web application to identify real requests and decode dynamic states, transforming browser-dependent behavior into stable protocol data for direct interaction.

What is web reverse engineering for protocol collection?▼

Web reverse engineering for protocol collection is the process of extracting and decoding complex web interactions into pure protocol data, allowing automated scripts to interact with an application directly without relying on a browser.

Do I need chrome-devtools and js-reverse to analyze complex web applications?▼

Yes, you need chrome-devtools and js-reverse to analyze complex web applications, as these dependencies are required to identify real requests and decode the dynamic states necessary for generating protocol collectors.

Can I generate a Python collector for automated testing from a hostile web client?▼

Yes, you can generate a Python collector from a hostile web client by reverse engineering its complex interactions and heavy browser-side processing into pure protocol data suitable for automated testing.

What's the best way to handle dynamic states in web reverse engineering?▼

The best way to handle dynamic states in web reverse engineering is to decode them into pure protocol data, ensuring the resulting Python collector operates reliably and independently of the browser environment.

Why does my browser-dependent web application collector fail during automated testing?▼

Browser-dependent collectors fail because they rely on heavy browser-side processing and dynamic states; converting these interactions into browser-free protocol data ensures reliability and maintainability for automated testing.