Reuse Before Generate

Name: Reuse Before Generate
Author: aradar46

by aradar46version 0.2.3i★ –iRuns on your computer

Registry nameio.github.aradar46/reuse-before-generate

Install

Overview

Description from the maker (original English)

Checks whether your idea already exists before your agent builds it. Searches GitHub, npm, Python.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Developer tools
You need to fill in: GITHUB_TOKEN

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: GITHUB_TOKEN

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "reuse-before-generate": {
      "command": "npx",
      "args": [
        "-y",
        "reuse-before-generate"
      ],
      "env": {
        "GITHUB_TOKEN": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add reuse-before-generate --env GITHUB_TOKEN=your-value -- npx -y reuse-before-generate

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "reuse-before-generate": {
      "command": "npx",
      "args": [
        "-y",
        "reuse-before-generate"
      ],
      "env": {
        "GITHUB_TOKEN": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "reuse-before-generate": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "reuse-before-generate"
      ],
      "env": {
        "GITHUB_TOKEN": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

GITHUB_TOKEN secret env
Optional GitHub token. Raises the search rate limit from 10 requests/minute to 30.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account aradar46, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Developer toolsi

More stars than 0% of the other 4906 servers in this category
Published to the registry more recently than 27% of the other 4906 servers in this category
Basic checks equal to or better than 100% of the other 4906 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Reuse Before Generate safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: GITHUB_TOKEN

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.3) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

reuse-before-generate

Your idea probably already exists. Find out before you build it, not after.

When you ask an AI coding assistant to build an app or module, it overenthusiastically starts scaffolding thousands of lines of code from scratch—even when battle-tested open-source libraries or maintained tools already exist.

reuse-before-generate is a zero-dependency MCP server (and CLI tool) that intercepts the AI workflow before code generation begins. It searches public code and package indexes across multiple angles, formats results as structured Markdown, and directs the AI to search the web for existing SaaS products and community discussions.

Sources checked

The server checks these sources in parallel:

Source	What it searches
GitHub	Public repositories
GitLab	Public projects
Show HN	Hacker News product & project launches
Flathub	Linux desktop GUI applications
F-Droid	Android open-source apps & utilities
GNOME Extensions	Desktop shell extensions
Homebrew	Curated CLI utilities & formulas
AUR	Arch Linux tools, daemons, & scripts
PyPI	Python packages & utilities
Conda / Bioconda	Conda-forge & Bioconda packages
CRAN / Bioconductor	R packages & bioinformatics libraries
npm	JavaScript & TypeScript packages
crates.io	Rust crates
NuGet	.NET packages
Hugging Face	AI models & pipelines
Docker Hub	Public container images
Maven Central	Java artifacts
RubyGems	Ruby gems
Packagist	PHP packages

All added sources use public endpoints and do not require API keys. They are queried on a best-effort basis: if one source is unavailable or rate-limited, results from the other sources are still returned. A GitHub token is optional and only raises GitHub's search rate limit.

Quick Start & Installation

No API keys required to start.

1. Claude Code CLI

claude mcp add -s user reuse-before-generate -- npx -y reuse-before-generate

2. Cursor, Claude Desktop, Antigravity, Windsurf, or VS Code

Add this to your mcpServers configuration (e.g. ~/.claude/mcp.json, ~/.gemini/antigravity-ide/mcp_config.json, or Cursor settings):

"mcpServers": { "reuse-before-generate": { "command": "npx", "args": ["-y", "reuse-before-generate@latest"] } } }

Optional: Higher GitHub API Limits

You can optionally pass a GitHub token to raise GitHub's rate limits:

"mcpServers": { "reuse-before-generate": { "command": "npx", "args": ["-y", "reuse-before-generate@latest"], "env": { "GITHUB_TOKEN": "ghp_your_token_here" } } } }

3. Run Directly in Terminal (CLI Mode)

You can run searches directly from your shell without an MCP client:

npx reuse-before-generate "terminal markdown viewer"

or if cloned locally:

node index.js "gnome speech to text offline"

4. Slash Command / Agent Skill

In supported AI coding assistants (Antigravity, Claude Code), you can invoke it directly via slash command:

/reuse-before-generate <project description or keywords>

🤖 Make It Automatic for AI Agents

To ensure your AI assistant checks for existing solutions before writing code, add this instruction to your CLAUDE.md, .cursorrules, GEMINI.md, or AGENTS.md:

Before scaffolding a new project or substantial new module from scratch:

Call check_before_building (or reuse_before_generate) from the reuse-before-generate MCP server.
Follow up with web search for existing commercial products or self-hosted tools as directed by the tool.
Present existing alternatives in a concise table and ask the user whether to reuse or extend an existing project instead of building from scratch.

🤖 AI Disclosure

For details on how AI is used in this project, see What I delegate to AI and what I don't.

License

MIT

Reuse Before Generate

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

reuse-before-generate

*Your idea probably already exists. Find out before you build it, not after.*

Sources checked

Quick Start & Installation

1. Claude Code CLI

2. Cursor, Claude Desktop, Antigravity, Windsurf, or VS Code

Optional: Higher GitHub API Limits

3. Run Directly in Terminal (CLI Mode)

or if cloned locally:

4. Slash Command / Agent Skill

🤖 Make It Automatic for AI Agents

🤖 AI Disclosure

License

Your idea probably already exists. Find out before you build it, not after.