Reftrixmcp

Name: Reftrixmcp
Author: TKMD

by TKMDversion 0.1.8i★ 2iRuns on your computer

Registry nameio.github.TKMD/reftrixmcp

How to install

What it does

Web design analysis with 26 MCP tools: layout, motion, quality, semantic search via pgvector

Connects Runs on your computer
Account or key Needs DATABASE_URL
Category Design, images & audio

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Let AI install it

Copy this message into a Claude chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Reftrixmcp for Claude on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "reftrixmcp": { "command": "npx", "args": [ "-y", "@reftrixmcp/mcp-server" ], "env": { "DATABASE_URL": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For DATABASE_URL, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the Reftrixmcp tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Sign up and create a Reftrixmcp key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "reftrixmcp": {
      "command": "npx",
      "args": [
        "-y",
        "@reftrixmcp/mcp-server"
      ],
      "env": {
        "DATABASE_URL": "your-value"
      }
    }
  }
}

Paste the key only into the app’s field, never into a chat or to anyone

Done

Quit Claude and open it again
Done
Try it
Use Reftrixmcp and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Reftrixmcp or shows a Reftrixmcp tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

REDIS_URL Redis/Valkey connection URL for BullMQ job queue
OLLAMA_BASE_URL Ollama API base URL for Vision LLM integration (default: http://localhost:11434)

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Reftrixmcp yet

Reftrixmcp runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Reftrixmcp

Steps for Claude →You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Design, images & audio that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Pascal 3D Editor✓ ChatGPT
Semiotic✓ ChatGPT
TypeUI✓ ChatGPT

Works with Claude Code, with some setup first

You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Claude Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Reftrixmcp for Claude Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): claude mcp add --scope user reftrixmcp --env DATABASE_URL=your-value -- npx -y @reftrixmcp/mcp-server 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For DATABASE_URL, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the Reftrixmcp tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Sign up and create a Reftrixmcp key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
4
Paste this command and press Enter
```
claude mcp add --scope user reftrixmcp --env DATABASE_URL=your-value -- npx -y @reftrixmcp/mcp-server
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see Reftrixmcp listed as connected
Done
Try it
Use Reftrixmcp and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Reftrixmcp or shows a Reftrixmcp tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

REDIS_URL Redis/Valkey connection URL for BullMQ job queue
OLLAMA_BASE_URL Ollama API base URL for Vision LLM integration (default: http://localhost:11434)

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Cursor chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Reftrixmcp for Cursor on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "reftrixmcp": { "command": "npx", "args": [ "-y", "@reftrixmcp/mcp-server" ], "env": { "DATABASE_URL": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For DATABASE_URL, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the Reftrixmcp tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Sign up and create a Reftrixmcp key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the Reftrixmcp settings, DATABASE_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Reftrixmcp and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Reftrixmcp or shows a Reftrixmcp tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

REDIS_URL Redis/Valkey connection URL for BullMQ job queue
OLLAMA_BASE_URL Ollama API base URL for Vision LLM integration (default: http://localhost:11434)

Descriptions are as written by the maker.

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Reftrixmcp key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a VS Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Reftrixmcp for VS Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "servers": { "reftrixmcp": { "type": "stdio", "command": "npx", "args": [ "-y", "@reftrixmcp/mcp-server" ], "env": { "DATABASE_URL": "your-value" } } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) For DATABASE_URL, leave "your-value" in place and tell me to paste the real value myself into the file or the app’s field. Never ask me to type a key in chat. 5) Do what we agreed, then check that the Reftrixmcp tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Sign up and create a Reftrixmcp key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the Reftrixmcp settings, DATABASE_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Reftrixmcp and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Reftrixmcp or shows a Reftrixmcp tool in the answer, you are connected

2 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

REDIS_URL Redis/Valkey connection URL for BullMQ job queue
OLLAMA_BASE_URL Ollama API base URL for Vision LLM integration (default: http://localhost:11434)

Descriptions are as written by the maker.

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Reftrixmcp💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user reftrixmcp --env DATABASE_URL=your-value -- npx -y @reftrixmcp/mcp-server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "reftrixmcp": {
      "command": "npx",
      "args": [
        "-y",
        "@reftrixmcp/mcp-server"
      ],
      "env": {
        "DATABASE_URL": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "reftrixmcp": {
      "command": "npx",
      "args": [
        "-y",
        "@reftrixmcp/mcp-server"
      ],
      "env": {
        "DATABASE_URL": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "reftrixmcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@reftrixmcp/mcp-server"
      ],
      "env": {
        "DATABASE_URL": "your-value"
      }
    }
  }
}

Values you fill in

DATABASE_URL secret required env
PostgreSQL connection string with pgvector extension
REDIS_URL env
Redis/Valkey connection URL for BullMQ job queue
OLLAMA_BASE_URL env
Ollama API base URL for Vision LLM integration (default: http://localhost:11434)

Descriptions are as written by the maker.

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

At a glance

GitHub stars i: 2
Downloads per weeki: 509/wk
Licence i: AGPL-3.0
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.8
Categoryi: Design, images & audio
Published to registryi: Mar 22, 2026
Code last changedi: Nov 8, 2026
Maker: TKMD
Packages: npm: @reftrixmcp/mcp-server
Repo: TKMD/ReftrixMCP
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 15, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account TKMD, which owns the repo
✓ Pass
Still maintained
Code last changed 7 days ago
✓ Pass
Has a licence
Uses AGPL-3.0
– 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

Published vulnerabilities (OSV.dev)

No entries on OSV.dev for @reftrixmcp/mcp-server@0.1.8

Checks only this package version, not every dependency · checked Nov 15, 2026

What we check → · JSON

Makers: ask for a re-check or report wrong info

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Design, images & audioi

More stars than 85% of the other 3093 servers in this category
Published to the registry more recently than 3% of the other 3093 servers in this category
Basic checks equal to or better than 100% of the other 3093 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 Reftrixmcp safe?

It passed 3 of 3 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: DATABASE_URL

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 7 days ago, and the latest version (0.1.8) reached the registry 8 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: Pascal 3D Editor, Figma MCP Server, Remocn: Remotion MCP server, Harness, ChatCut

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

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

Pascal 3D Editor

Create, inspect, validate, and save editable 3D building scenes with Pascal's MCP server.

by pascalorgWidely used↓ 1K/wk★ 25.5K Stars for the whole repoUpdated 2 days ago

Computer or cloud✓ service owner · pascal.app

Install

Figma MCP Server

Figma’s official server gives AI your design data so it can turn designs into code or describe them accurately. Connects to Figma’s cloud.

by figmaWidely used★ 2.2KUpdated 13 months ago

Runs in the cloud✓ service owner · mcp.figma.com

How to connect

Remocn: Remotion MCP server

Hosted MCP for Remotion videos: search Remocn components, read docs, plan a video, preview it.

by RemocnGrowing★ 1.7KUpdated 5 days ago

Runs in the cloud✓ service owner · remocn.dev

How to connect

Harness

Start Claude Code and Codex agents the person can watch, wait for them and read their answers.

by autonomous-aiGrowing↓ 109/wk★ 1.5KUpdated 27 days ago

Runs on your computer✓ harness.autonomous.ai

Install

ChatCut

AI video editor for agents: cut footage, add captions and motion graphics, export editable edits.

by ChatCut-IncGrowing★ 1KUpdated 16 days ago

Runs in the cloud✓ service owner · chatcut.io

How to connect

Pascal 3D Editor — Cloud or install on your computer · No key needed
Figma MCP Server — Runs in the cloud, nothing to install · No key needed · In Claude’s directory
Remocn: Remotion MCP server — Runs in the cloud, nothing to install · No key needed
Harness — Installs on your computer · No key needed
ChatCut — Runs in the cloud, nothing to install · No key needed

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.

ReftrixMCP

Web design knowledge base platform -- layout analysis, motion detection, and quality evaluation via MCP tools.

For frontend engineers, designers, and AI-agent builders who want to analyze real websites and retrieve reusable UI patterns via Claude or any MCP client.

Japanese / 日本語の概要

ReftrixMCPは、Webデザインパターンをベクトル検索(pgvector HNSW)と RAGで検索可能なナレッジベースに集約し、MCPツール経由でClaude等の AIエージェントと統合するプラットフォームです。

主要機能: レイアウト分析 / モーション検出 / 品質評価 / セマンティック検索 / 横断検索 / 画像類似検索 / レスポンシブ解析 / パーツ分析 / レート制限 / 検索キャッシュ / BullMQ UI / SBOM

27 のMCPツールを提供: Layout(4) / Motion(2) / Quality(1) / Page(3) / Narrative(1) / Background(1) / Responsive(2) / Part(3) / System(1) / Search(1) / Design(3) / Data(2) / Audit(1) / Accessibility(1) / Performance(1)

詳細な日本語ドキュメント: docs/README.ja.md

What it does

Layout analysis -- auto-detect sections (hero, feature, CTA, etc.), extract grid/typography, and generate React/Vue/HTML code
Motion detection -- discover CSS/JS animations with frame capture (15 px/frame video mode), CLS detection via Pixelmatch
Quality evaluation -- score designs on three axes (originality, craftsmanship, contextuality) with anti-AI-cliche detection
Semantic search -- find layout, motion, narrative, background, and responsive patterns via pgvector HNSW hybrid search
Part-level analysis -- extract 16 UI part types (button, icon, heading, etc.) with DINOv2 visual embeddings for visual similarity search
Vision integration -- Ollama llama3.2-vision for richer layout, motion, and narrative understanding
Section post-processing -- auto merge/split sections by type, heading, and height (Rule 1-4) for optimal structure
Multi-tile capture -- split large sections (>viewport height) into tiles for complete DINOv2 visual coverage
Blank image detection -- detect lazy-loading unrendered sections and re-capture via Playwright for full coverage
Code generation -- convert analyzed sections to React, Vue, or plain HTML with matched motion patterns
Unified search -- cross-service search across layout, part, motion, background, and narrative patterns in a single query
Image similarity search -- find visually similar designs via DINOv2 embeddings from Base64/URL input (RRF 3-source)
Rate limiting -- Token Bucket + Redis Lua (CWE-770 DoS prevention), 3-tier (analysis 10 RPM / search 120 RPM / default 60 RPM)
Search cache -- LRU in-memory cache (lru-cache v11) with TTL-based natural expiry (5 min)
BullMQ UI -- Bull Board dashboard for monitoring async page.analyze jobs (port 21080)
SBOM -- CycloneDX 1.6 auto-generation for EU CRA vulnerability reporting compliance

Why ReftrixMCP


Layout-aware	Sections, grids, and typography extracted as structured data -- not just screenshots
Motion-aware	CSS static analysis + frame-by-frame video capture for real animation behavior
Quality-aware	Three-axis scoring with actionable improvement suggestions
Searchable	768-dim multilingual embeddings (e5-base) with HNSW index and hybrid RRF ranking
Preference-aware	Search tools accept an optional `profile_id` and rerank with an existing profile from an older version; profile creation was removed on 2026-11-04
Part-aware	16 UI part types extracted with DINOv2 visual embeddings for cross-site component comparison
MCP-native	27 tools purpose-built for Claude Desktop and MCP Client CLI

Quickstart

Run page.analyze on any URL in under 5 minutes.

Prerequisites

Node.js ^22.23.4 || ^24.22.1 || ^26.12.1, pnpm 10+, Docker & Docker Compose, Ollama

Setup

git clone https://github.com/TKMD/ReftrixMCP.git && cd ReftrixMCP

pnpm install # CUDA skip is default; see GPU note below cp .env.example .env.local # edit DATABASE_URL / REDIS_URL as needed cp .env.local packages/database/.env # Prisma CLI requires this copy pnpm docker:up # PostgreSQL 18 + pgvector + Redis pnpm db:migrate && pnpm db:seed pnpm build pnpm exec playwright install chromium # browser for page crawling pnpm --filter @reftrixmcp/ml download:dinov2 # DINOv2 visual embedding model (~330 MB) pnpm --filter @reftrixmcp/ml repair:e5-cache --check # (optional) verify multilingual-e5-base ONNX cache (~1.1 GB) integrity curl -fsSL https://ollama.com/install.sh | sh # install Ollama ollama pull llama3.2-vision # vision model (~7.9 GB) ollama serve # keep running in a separate terminal

Note: If you change .env.local, also update packages/database/.env.

page.analyze workers are auto-forked by WorkerSupervisor when the MCP server starts (v0.4.0 PR7d-2+). Manual start via pnpm --filter @reftrixmcp/mcp-server worker:start:page is developer-only and requires REFTRIX_ALLOW_MANUAL_WORKER=true to bypass the Redis-based dual-run guard if the MCP server is also running.

See Getting Started for GPU configuration and details.

GPU / CUDA: CUDA binary download is skipped by default (CPU fallback). For GPU acceleration setup, see Troubleshooting: CUDA Detection.

pnpm "Ignored build scripts": On pnpm install, pnpm 10 prints Ignored build scripts: @prisma/client, esbuild, sharp, ... and suggests Run "pnpm approve-builds". This is expected, not an error — pnpm 10 blocks dependency build/lifecycle scripts by default as a supply-chain safeguard. Setup still completes because sharp and esbuild ship prebuilt binaries, and the Prisma client is generated by the @reftrixmcp/database workspace package's own postinstall (prisma generate) during pnpm install — a workspace lifecycle script, which pnpm does not gate behind the dependency build-script allowlist. Only run pnpm approve-builds if you have a specific reason to let one of these blocked dependencies run its own native build step (onnxruntime-node is already allow-listed via pnpm.onlyBuiltDependencies, so it never appears in the ignored list; and CUDA acceleration is a separate opt-in — see the GPU / CUDA note above — not pnpm approve-builds).

Using the npm package

If you install @reftrixmcp/mcp-server from npm instead of cloning, the Playwright browser is not included: get it with npx playwright@1.57.0 install chromium (any directory). See "Using the npm Package" in the MCP Server README for the browser notice (third-party software, not covered by this project's license, not redistributed, not in the SBOM) and the --ignore-scripts step (npm rebuild @prisma/client).

Connect to Claude

Add to your MCP config:

Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS)
MCP Client CLI: .mcp.json in the project root or ~/.claude/.mcp.json

"mcpServers": { "reftrix": { "command": "node", "args": ["/absolute/path/to/ReftrixMCP/apps/mcp-server/dist/index.js"], "env": { "NODE_ENV": "development", "DATABASE_URL": "postgresql://reftrix:change_me@localhost:26432/reftrix?schema=public", "REDIS_URL": "redis://localhost:27379", "OLLAMA_BASE_URL": "http://localhost:11434", "OLLAMA_HOST": "http://localhost:11434", "ENABLE_SECTION_SCREENSHOT_FALLBACK": "true" } } } }

Replace change_me with a secure password. Port 26432 = standard 5432 + 21000 offset.

OLLAMA_BASE_URL is used by the MCP server process; OLLAMA_HOST is used by the worker process. Both must match if Ollama runs on a non-default port.

ENABLE_SECTION_SCREENSHOT_FALLBACK enables Playwright-based individual section screenshots for sections outside the initial screenshot range (WebGL/lazy-rendered pages). This significantly improves DINOv2 visual embedding coverage. Set to "false" to disable.

Optional environment variables (defaults work out of the box):

MAX_TILES_PER_SECTION (default 20, max 100) -- max tiles per section for multi-tile capture.

BLANK_IMAGE_STDDEV_THRESHOLD (default 5.0) -- stddev threshold for blank image detection.

DUPLICATE_VECTOR_THRESHOLD (default 0.995) -- cosine similarity threshold for vision embedding dedup.

EMBEDDING_IDLE_TIMEOUT_MS (default 30000) -- ONNX Worker VRAM auto-release timer (0 to disable).

DINOV2_MODEL_PATH -- custom DINOv2 ViT-B/14 ONNX model path.

EMBEDDING_CACHE_ENABLED (default true) -- enable/disable the Layout Embedding disk cache (additive opt-out flag; set "false" to write no cache files).

REFTRIX_EMBEDDING_CACHE_ROOT (default /tmp/reftrix-embedding-cache) -- embedding cache root; a root resolving outside os.tmpdir() is rejected by default (fail-closed). Set REFTRIX_EMBEDDING_CACHE_ROOT_ALLOW_FALLBACK=true to instead degrade to the default root with a warning.

Example tools

ReftrixMCP provides 27 MCP tools. Key examples:

layout.ingest -- fetch a web page, take a screenshot, and extract section patterns
layout.search -- semantic search over layout sections by natural-language query
motion.detect -- detect CSS/JS animations with video-mode frame capture
quality.evaluate -- score design quality on originality, craftsmanship, and contextuality
page.analyze -- unified analysis: layout + motion + quality + responsive in one call (async via BullMQ), with opt-in Phase 7.5: accessibility audit, performance evaluation, and auto snapshot
responsive.search -- search responsive analysis results by viewport and breakpoint
part.search -- semantic search over UI parts with visual (DINOv2) or text embeddings
part.inspect -- get detailed part info including computed styles, bounding box, and accessibility
part.compare -- compare 2-5 parts side by side on styles, layout, and interaction

Full tool reference: MCP Tools Guide

Architecture

MCP Client (Claude Desktop / Code)  --stdio-->  MCP Server (<!-- gen:tool-count -->27<!-- /gen:tool-count --> tools, Zod)

+-- Service Layer: Playwright, Sharp+Pixelmatch, DOMPurify +-- ML Layer: ONNX Runtime (multilingual-e5-base + DIN

Only the beginning is shown; read the rest in the repo

Reftrixmcp

What it does

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ReftrixMCP

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Why ReftrixMCP

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Using the npm package

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