Browser Extension Reverse

CommunityPopular

zhaoxuya520

browser-extension-reverse

Use for authorized reverse engineering of browser extensions (Chrome/Firefox) including manifest analysis, background workers, and extension-based credential or traffic logic recovery.

Overview

Publisher	zhaoxuya520
Repository	`reverse-skill`
Skill name	`browser-extension-reverse`
Stars	36.3K
Forks	5K
Bundled files	1
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
1 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by zhaoxuya520 on GitHub. Read the source before you install it.

Installation

Install the Browser Extension Reverse AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/zhaoxuya520/reverse-skill.git /tmp/reverse-skill
mkdir -p .claude/skills
cp -r /tmp/reverse-skill/skills/browser-extension-reverse .claude/skills/browser-extension-reverse

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Browser Extension Reverse in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Browser Extension Reverse on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Browser Extension Reverse is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Browser Extension Reverse Engineering

ACTION REQUIRED（读完后立刻执行）

NOW: 读取 ../field-journal/precedent-reverse.md
NOW: 确认目标是浏览器扩展（crx/xpi/解压目录），不是普通网页 JS（普通 → js-reverse/）
NEXT: 解压扩展；读 manifest
ACT: 权限面 → 后台脚本 → 网络/存储钩子

适用场景

Chrome/Edge MV2/MV3 扩展分析
Firefox 扩展
恶意扩展 IOC、供应链扩展投毒调查
扩展实现的签名/加密/代理逻辑还原

工作流

1. 包体

text
□ crx 解压 / 从 profile 取扩展目录
□ manifest.json：permissions、host_permissions、background、content_scripts
□ 评估过度权限（<all_urls>、webRequest、debugger）

2. 逻辑

text
□ service_worker / background 入口
□ content_script 注入点与世界（isolated）
□ chrome.storage / IndexedDB 密钥
□ 与 `js-reverse` 相同：Observe 网络与消息传递（runtime.sendMessage）

3. 动态

text
□ 开发者模式加载解压目录
□ chrome://extensions 检查错误
□ DevTools 附加 service worker
□ 必要时 Frida/浏览器 CDP（jshookmcp）

工具链

工具	用途
解压/jq	manifest
Chrome DevTools	worker 调试
js-reverse 工具链	深度 JS
YARA	恶意扩展规则

参考

references/extension-analysis.md
field-journal 扩展恢复相关条目
../js-reverse/ ../malware-analysis/

路由上下文

上游: MASTER R30
下游: 复杂混淆 JS → js-reverse；投毒调查 → supply-chain / malware

任务完成自检

是否列出权限面与入口脚本？
是否还原关键数据流？
Checklist？

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

references/extension-analysis.md1 KB

Frequently asked questions

What does the Browser Extension Reverse AI skill do?

Use for authorized reverse engineering of browser extensions (Chrome/Firefox) including manifest analysis, background workers, and extension-based credential or traffic logic recovery.

Why use Browser Extension Reverse on TypingMind?

Because you install it once and use it with any model. Browser Extension Reverse is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Browser Extension Reverse in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/zhaoxuya520/reverse-skill/tree/main/skills/browser-extension-reverse. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Browser Extension Reverse?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Browser Extension Reverse?

As many as you like. As long as a model supports skills, you can use Browser Extension Reverse with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Browser Extension Reverse AI skill free?

Yes. It is published on GitHub by zhaoxuya520 under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Browser Extension Reverse Engineering

ACTION REQUIRED（读完后立刻执行）

适用场景

工作流

1. 包体

2. 逻辑

3. 动态

工具链

参考

路由上下文

任务完成自检

Bundled files

Frequently asked questions

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