js-reverse-mcp

js-reverse-mcp is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from yuanchuangith/js-MCP-Server. Its token cost is not measured, scanned A, a copy of js-reverse-mcp, Apache-2.0.

A local MCP server for examining and reverse-engineering JavaScript, with built-in measures intended to avoid detection. MCP is a standard way for an AI agent to use external tools.

In plain words
What is it for?
Use it for JavaScript reverse-engineering tasks from an agent running the server locally through the npm package.
Why use it?
It gives an AI agent a dedicated way to work with JavaScript that may be difficult to understand or inspect directly.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it.

Good fit Use it for JavaScript reverse-engineering tasks from an agent running the server locally through the npm package.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/yuanchuangith/js-mcp-server/js-reverse-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/yuanchuangith/js-MCP-Server

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote 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.

agentmods badge for js-reverse-mcp

README.md
[![agentmods](https://agentmods.dev/badge/mcp/yuanchuangith/js-mcp-server/js-reverse-mcp.svg)](https://agentmods.dev/mcp/yuanchuangith/js-mcp-server/js-reverse-mcp)
Your own site
<a href="https://agentmods.dev/mcp/yuanchuangith/js-mcp-server/js-reverse-mcp"><img src="https://agentmods.dev/badge/mcp/yuanchuangith/js-mcp-server/js-reverse-mcp.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

js-reverse-mcp scanned grade A with 0 findings 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 7d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to js-reverse-mcp — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

listed in the official MCP registry · 9 lines

What it actually says

{ "js-reverse-mcp": { "command": "npx", "args": [ "-y", "js-reverse-mcp" ] } }

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. 7d ago First seen · 9 lines scan A 39cb063b8cb7

Subscribe to this mod's changes

js-reverse-mcp is an MCP server published in the GitHub repository yuanchuangith/js-MCP-Server (0 stars, last pushed 9d ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 100% identical to js-reverse-mcp, differing in 0 lines, and is treated as a copy.