Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer
CoreTend
Overview
Description from the maker (original English)
Read-only view of what fills a Mac: disk usage, cleanup candidates, largest items, app leftovers.
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
- UsageiVery new↓ 43/wk · ★ –
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: Other
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).
- The registry lists no key to fill in.
You need
- npmNode.js installed (for the npx command)
Which app do you use?
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": {
"coretend": {
"command": "npx",
"args": [
"-y",
"coretend",
"mcp"
]
}
}
}Run this in your terminal
claude mcp add coretend -- npx -y coretend mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"coretend": {
"command": "npx",
"args": [
"-y",
"coretend",
"mcp"
]
}
}
}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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"coretend": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"coretend",
"mcp"
]
}
}
}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.
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 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ahmetbsbnr, 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 Otheri
- More stars than 0% of the other 18444 servers in this category
- Published to the registry more recently than 67% of the other 18444 servers in this category
- Basic checks equal to or better than 100% of the other 18444 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 CoreTend 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?
The registry does not list a required key, though some servers ask you to sign in on first use.
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 (2.3.0) reached the registry 21 days 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: Spec Driven Development, Remote Desktop Commander, Egovframe Scaffold MCP
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud✓ desktopcommander.app
Egovframe Scaffold MCP
eGovFrame (전자정부 표준프레임워크) projects: templates, components, CRUD, build, 5.x migration, dependencies
Runs on your computer
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.
CoreTend
See what fills your Mac. Clear it safely.
Your whole Mac in one click, caches and developer files cleaned in one review, apps uninstalled completely — everything goes to the Trash, with Undo.
Website · Download · What's new in 2.3 · Français
Four spaces
| Space | The question it answers |
|---|---|
| Home | How is my Mac, and what can I do now? The space CoreTend can give back, one button away. |
| Space | What takes the space? A map of your home folder, large files and exact duplicates. |
| Clean | What can I remove safely? 30 rules read at once — caches, logs, Xcode, simulators, npm, pnpm, Gradle, Cargo, Mail, AI tools and local models (Ollama, LM Studio), broken login agents, disk images — safe items ticked, one review, Undo. |
| Apps | Which apps take space or start on their own? Uninstall completely: the app and the files it left. |
History of every scan and move stays at the sidebar's foot.
Around the Mac
- Shortcuts and Siri: Get Free Space, Get Space to Clear, Open CoreTend (read and open only).
- Widget: free space and what the last Clean found.
- Finder: right-click a folder › Analyze with CoreTend; or drop it on the Dock icon.
- System features (optional): tidy
/Library/Cachesand turn third-party system services on or off, delete a local Time Machine snapshot or rebuild the Spotlight index, through a small signed helper installed only when you turn it on in Settings › System.
What CoreTend will never do
- Erase your files for good. Moves go to the macOS Trash after your review; CoreTend checks each item again just before, and Undo puts it back. The one exception is a local Time Machine snapshot you pick and confirm in Settings › System, which macOS cannot put back.
- Scare you. No health score, no alarm, no invented figure.
- Watch you. No account, no telemetry, nothing in the background. CoreTend asks this site whether an update exists (you can turn it off), and reads your apps' own update feeds only when you click Check for updates in Apps.
Install
- Download
CoreTend-2.3.0-universal.dmg(notarized) from Releases or the site. - Homebrew:
brew install --cask ahmetbsbnr/coretend/coretend(also linkscoretendin your PATH) - Terminal and AI assistants:
coretendon npm —npx coretend clean·npx -y coretend mcp; see docs/CLI.md.
macOS 14 Sonoma or later, Apple silicon or Intel. English, French, German, Spanish, Italian and Japanese (follows macOS). CoreTend asks for Full Disk Access once, to read Mail, Safari and app data; without it, it reads what macOS allows.
Build from source
swift build --product CoreTendApp # the appswift build --product CoreTendCLI # a read-only command-line tool make check # tests, the safety audit and the site checks make app # an unsigned CoreTend.app in Artifacts/
Swift 6, SwiftPM; one runtime dependency, Sparkle, for signed updates. The code is organised in modules: DesignSystem (the Serre design and the living greenhouse), ScanCore (read-only scanning), SafetyCore (the only code that may move a file — to the Trash), Domain, Persistence, AppShell and the app itself, plus the widget (CoreTendWidget), the Finder menu (CoreTendFinder) and the optional system helper (CoreTendHelper, HelperProtocol), which link no other package.
Contributing
Read CONTRIBUTING and GOVERNANCE. Security issues: SECURITY. Privacy: docs/Privacy.md. Code under Apache 2.0, documentation under CC BY 4.0 (docs/LICENSING.md).