When

Name: When
Author: WhenLabs-org

by WhenLabs-orgversion 0.12.3i★ –iRuns on your computer

Registry nameio.github.WhenLabs-org/when

Install

Overview

Description from the maker (original English)

The WhenLabs developer toolkit — 6 tools, 7 MCP endpoints, one install.

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: 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?

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": {
    "when": {
      "command": "npx",
      "args": [
        "-y",
        "@whenlabs/when"
      ]
    }
  }
}

Run this in your terminal

claude mcp add when -- npx -y @whenlabs/when

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "when": {
      "command": "npx",
      "args": [
        "-y",
        "@whenlabs/when"
      ]
    }
  }
}

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": {
    "when": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@whenlabs/when"
      ]
    }
  }
}

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account WhenLabs-org, 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 32417 servers in this category
Published to the registry more recently than 7% of the other 32417 servers in this category
Basic checks equal to or better than 100% of the other 32417 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 When 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 (0.12.3) reached the registry 7 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: Spec Driven Development, Remote Desktop Commander, FOGA node

Alternatives

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

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MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

Install

FOGA node

by garyyang-finchip

A Finch OG Agent cell as an MCP server: read the world, dry-run and take ERC-8414 tenders by policy.

Computer or cloudUpdated today

Install

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.

@whenlabs/when

Six tools. One install.

A single installable toolkit that brings six WhenLabs developer tools into your Claude Code workflow. After install, the tools are exposed over a single MCP server and Claude calls them automatically when relevant.

Install

npx @whenlabs/when install

One-time setup. The installer:

Registers a single MCP server (whenlabs) in your Claude Code configuration
Injects a CLAUDE.md block so Claude knows when to use each tool
Cleans up any legacy velocity-mcp registration (velocity is now bundled)

The six tools

Tool	Purpose
aware	Auto-detect stack and generate AI context files (CLAUDE.md, `.cursorrules`, …)
berth	Detect port conflicts before starting dev servers
envalid	Validate `.env` files against a schema
stale	Detect documentation drift between docs and code
vow	Scan dependency licenses and validate against policy
velocity	Time coding tasks and learn from historical data

MCP tools

Eight endpoints across the six tools:

Endpoint	What it does
`aware_sync`	Detect stack and regenerate AI context files
`berth_check`	Scan project for port conflicts
`envalid_validate`	Validate `.env` files against schema
`stale_scan`	Detect documentation drift
`vow_scan`	Scan licenses and validate against policy
`velocity_start_task`	Start timing a coding task
`velocity_end_task`	End timing and record results
`whenlabs_summary`	Unified rollup across all five scanners in one call

All eight are served by the single whenlabs MCP server (stdio, Node 20+). Fix/init/auxiliary commands remain available via each tool's CLI (npx @whenlabs/ --help).

CLI

when init       # Onboard a project — detect stack, bootstrap configs, run all checks

when doctor # Run all six tools and show a unified health report when install # Register MCP server in Claude Code when uninstall # Remove MCP server

For per-tool operations, use the tool directly:

npx @whenlabs/stale scan

npx @whenlabs/envalid validate npx @whenlabs/berth check npx @whenlabs/aware sync npx @whenlabs/vow scan

Manual MCP configuration

If you're not using the install command, add this to your Claude Code MCP config:

"mcpServers": { "whenlabs": { "command": "npx", "args": ["@whenlabs/when", "when-mcp"] } } }

License

MIT — see LICENSE

Built by Siddharth at WhenLabs

When

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

FOGA node

README from the maker

@whenlabs/when

Install

The six tools

MCP tools

CLI

Manual MCP configuration

License