Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
PowerScroll
Overview
Description from the maker (original English)
Read and edit a live local-first PowerScroll visual notebook.
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?
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": {
"powerscroll": {
"command": "npx",
"args": [
"-y",
"powerscroll-mcp"
]
}
}
}Run this in your terminal
claude mcp add powerscroll -- npx -y powerscroll-mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"powerscroll": {
"command": "npx",
"args": [
"-y",
"powerscroll-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": {
"powerscroll": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"powerscroll-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 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account CynaCons, 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 32623 servers in this category
- Published to the registry more recently than 29% of the other 32623 servers in this category
- Basic checks equal to or better than 100% of the other 32623 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 PowerScroll 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 (0.67.1) reached the registry 3 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, Draugr
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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 2 days ago
Install
Draugr
by draugr-dev
Security scanning for AI agents: SAST, SCA, secrets, IaC, DAST, ranked by real risk.
Runs on your computerUpdated 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.
PowerScroll
A local-first visual notebook in one editable HTML file—with an MCP bridge for AI agents.
Try PowerScroll · Download PowerScroll.html · Agent setup · Report a problem
PowerScroll combines the hierarchy of OneNote, the freeform canvas of a whiteboard, and editable diagrams in a notebook you completely own. No account, server, proprietary database, or cloud connection is required.
Start in under a minute
- Open the live demo or download
PowerScroll.html. - Add text, images, drawings, shapes, pages, and independent vertical scrolls.
- Press Ctrl+S. The application and your notebook data are saved together in one HTML file.
- Open that file in a browser whenever you want to continue.
The hosted demo does not upload notebook content. Download or save your notebook to keep it; your browser file is the source of truth.
Why PowerScroll is different
One file is the product and the data
Every notebook contains the complete editor, structured workspace, drawings, images, and optional extensions. It opens offline and remains editable. Sharing the file shares a working copy rather than an export that needs PowerScroll installed elsewhere.
Visual without losing structure
Sections and pages provide notebook hierarchy. Inside each page, named scrolls create independent vertical workstreams on an infinite canvas. Markdown, math, images, ink, shapes, PlantUML, Mermaid, SVG, and draw.io content can live beside one another.
Humans and agents share the same canvas
The local MCP bridge lets an agent read pages, add and move blocks, manage scrolls, insert images, create native editable diagrams, and save the notebook. Agent edits use the same in-memory stores, undo history, and save path as human edits—there is no shadow database to reconcile.
Let an agent work in your notebook
The bridge is off by default and listens only on your machine. Run the published package directly from npm:
npx -y powerscroll-mcpThen open a notebook and enable Settings → Agent bridge → Let a local agent write into this notebook. See the complete tool and client setup guide.
The executable is published as powerscroll-mcp and its discovery metadata is active in the official MCP Registry. The latest GitHub release also carries a package tarball as a fallback, but npm is the canonical install source.
Selected capabilities
- Infinite canvas with pan, zoom, touch, lasso, alignment guides, and undo/redo
- Markdown, tables, checkboxes, links, syntax blocks, and KaTeX mathematics
- Images with paste/import, crop, rotate, lightbox, notes, and compact mode
- Freehand pen and erasers; styled rectangles, circles, triangles, arrows, lines, and arcs
- Sections, pages, named resizable scrolls, outline, search, and replace
- Native editable diagrams from PlantUML, Mermaid, SVG, and draw.io
- Direct disk save and autosave in Chrome/Edge, with browser download fallback
- In-app updates that preserve notebook content and installed extensions
- Local multi-agent MCP bridge with a single-writer lease and unblocked reads
Privacy and security
Normal editing does not require a PowerScroll server or account. Update checks and optional extension installation contact GitHub; the local agent bridge makes a loopback WebSocket connection only after the user enables it.
A notebook is executable HTML. Open notebooks only from people you trust, just as you would any executable document. See SECURITY.md for the threat model and private vulnerability-reporting instructions.
Migrating a PowerNote notebook
PowerScroll opens existing PowerNote notebooks directly. Legacy embedded ids, internal links, storage, and bridge protocol identifiers remain supported.
For a notebook too old to update itself:
- Open the latest
PowerScroll.html. - Use the Open button to select the old notebook.
- Press Ctrl+S to write the current PowerScroll editor back with its content.
Development
npm installnpm install --prefix powernote-mcp npm run dev npm run build:template npx playwright test npm run test:bridge
PowerScroll is built with React, TypeScript, Vite, Konva, and Zustand. Behavioral requirements and their test traceability live in docs/. Contribution expectations are in CONTRIBUTING.md. Maintainers should use the release runbook and update the deployment ledger after publishing.
License
MIT © 2026 Constantin Chabirand