Dendro React

Name: Dendro React
Author: RooneyTech

作者：RooneyTech版本 0.9.3i★ –i在你的电脑上运行

注册名称io.github.RooneyTech/dendro-react

安装

概览

作者提供的说明（英文原文）

React codebase semantics for AI agents, with a VS Code visualizer you both share. Free, local.

PopNx MCP 的三大支柱

这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。

用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
我们的基础检查i1 项中通过 1 项依据公开信息检查；尚未扫描代码
使用情况i尚未统计★ –

它能帮你做什么

我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。

连接方式: 在你的电脑上运行
传输方式: stdio
分类: 开发者工具

安装

选择你使用的 AI 应用，然后复制设置。

安装之前

基础检查：1 项中通过 1 项
在你的电脑上运行，拥有你的用户账户的权限（文件、网络、应用）。
注册中心没有列出需要填写的密钥。

你需要

npm已安装 Node.js（用于 npx 命令）

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。

打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json

{
  "mcpServers": {
    "dendro-react": {
      "command": "npx",
      "args": [
        "-y",
        "dendro-react-mcp"
      ]
    }
  }
}

在终端中运行这条命令

claude mcp add dendro-react -- npx -y dendro-react-mcp

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "dendro-react": {
      "command": "npx",
      "args": [
        "-y",
        "dendro-react-mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "dendro-react": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "dendro-react-mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

这个服务器在你的电脑上运行，而 ChatGPT 只能连接互联网上的服务器。请选择其他应用。

你的选择通过 Cookie 保存在这台设备上，无需账户。

这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。

它能做什么

它在你的电脑上运行；安装后，工具列表会显示在你的 AI 应用中。

基础检查i

我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月7日

✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 RooneyTech 验证，该账户拥有此仓库
… 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
… 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
– 不适用
端点有响应
它在你的电脑上运行，没有互联网端点
– 不适用
使用 OAuth 登录
在你的电脑上运行，改用本地设置
… 尚未检查
工具描述中没有隐藏指令
它在你的电脑上运行；我们只能读取互联网端点的工具列表

与“开发者工具”中的其他服务器比较i

星标数多于此分类中其他 1391 个服务器的 0%
发布到注册中心的时间比此分类中其他 1391 个服务器的 70% 更新
基础检查结果等于或优于此分类中其他 1391 个服务器的 100%

与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。

常见问题

Dendro React 安全吗？

它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。

它需要哪些密钥或代码？

注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。

它在我的电脑上运行还是在云端？

它在你的电脑上运行。你的 AI 应用会在需要时启动它，数据不会经过作者的服务器（除非它自己调用在线服务）。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（0.9.3）于20天前进入注册中心。

哪些应用可以使用它？

支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。你的电脑上还需要有 Node.js。

有什么可以替代它？

同一分类中有：GitHub, Desktop Commander, Cloudflare MCP

替代选择

同一分类中其他作者的服务器，按星标数排序。

如何看卡片：★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i

GitHub

作者：github

Connect AI assistants to GitHub - manage repos, issues, PRs, and workflows through natural language.

电脑或云端★ 34,245MIT3天前更新

安装

Desktop Commander

作者：wonderwhy-er

MCP server for terminal commands, file operations, and process management

在你的电脑上运行★ 10,225MIT15天前更新

安装

Cloudflare MCP

作者：cloudflare

Cloudflare MCP servers

在云端运行★ 4,446Apache-2.014个月前更新

安装

作者的 README

打开 README

按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。

Dendro

Your agent is editing code it's never read.

It just scanned forty files to answer "what breaks if I change this?" It could have asked one fucking question.

Dendro is one model of your React or React Native codebase, rendered twice: semantics your agent can query, and a map you can both point at.

For your agent — the semantics

MCP tools that answer React questions in React terms: the component's contract before an edit (props, state, contexts, blast radius), rerender risk with the why, effect hygiene (cleanup risks, setter-only effects, fetch races that exhaustive-deps can't see), navigation graphs (Next.js, React Navigation, Remix, Expo Router), live runtime state from a running app — and whole-repo orientation in one ~300-token call.

Symbol servers tell your agent where the symbol is. Dendro tells it what rerenders, and why.

For you — the visualizer

Your app's constellation: a live dendrogram in VS Code, descended from Reactive. Your agent drives it — highlights what it's talking about, annotates, traces a prop, walks you through the architecture step by step while you click Next/Back. You watch the same map the agent reasons over.

Getting Started

Install Dendro React — run ext install RooneyTech.dendro-react in VS Code, or install from the Marketplace
Open your React or React Native project in Claude Code
Paste this:

Set up Dendro React for this project. The extension is already installed in VS Code. Do these steps in order:

1. Find the MCP server path: ls ~/.vscode/extensions/rooneytech.dendro-react-*/dist/mcp-server.js. If several versions are installed, choose the newest one.

2. Find the absolute node path: which node (Node 22.12+ or Node 20.19+ in the 20.x line).

3. Merge a dendro-react server into .mcp.json using the absolute node path as "command", the selected server path as the first arg, and DENDRO_WORKSPACE_ROOT set to this project's absolute path. Preserve other servers.

4. Restart the MCP client, then call get_usage_guide and report its running version. If the tools are unavailable, stop and explain what setup remains.

5. Get the contract of one component I am about to edit. Read its source and one reported importer; check props, state, and used-by claims. Explain one concrete change impact and any mismatch before proposing an edit.

Your first useful result is a source-checked answer to “what depends on the component I'm changing?” The finish line is an accurate explanation of one change impact, with file references and scope limits.

For standalone analysis, Cursor/Windsurf setup, or troubleshooting, use the setup guide. The VS Code extension is needed for the shared map; static analysis can run through the npm MCP server alone.

Things to Try

Say "Dendro" in your prompts — like "Use Dendro to show me how this app is structured." It'll use the visualizer and deeper analysis instead of just reading files.

Watch: "Open the Dendro visualizer and walk me through the app"
Ask: "Use Dendro to check how healthy this codebase is"
Before an edit: "Get the component contract for CheckoutForm first"
"Where does state live? Use Dendro to trace the data flow"
"Show me how navigation works in this app with Dendro"
"Use Dendro to explain this repo's architecture like I've never seen it"

What It Does

Component contracts — props, state, contexts, blast radius, complexity in one call, before your agent edits
Health audits — A-F grade plus line-anchored review signals (cleanup risks, possible fetch races, informational setter-only effects)
Complexity scoring — every component graded, refactoring candidates named
Navigation mapping — React Navigation, Next.js, React Router, Remix, Expo Router
Context & data flow — providers, consumers, prop drilling detection
Visual canvas — the agent highlights, annotates, and traces flows in a live dendrogram
Runtime inspection — connect to a running app for live state, props, and hooks (optional)

Check findings before changing code

Static analysis suggests places to inspect. A health grade is a heuristic, not a correctness or performance verdict. The tree follows static imports; lazy imports and other entry points can be absent. Reported re-render risks need context about memoization and runtime behavior.

Read the flagged source before applying a fix. In particular, an effect can return cleanup implicitly or through an optional chain; v0.9.0 can incorrectly flag these as leaks. Check the running server version rather than assuming a changelog entry means a fix is installed. Visualizer commands being queued does not confirm that the requested nodes appeared on screen.

Free & local

Every tool is free — exports, snapshots, verified projection, live introspection, and batch analysis included. No account, no license key, and no code leaves your machine. The one exception is submit_feedback, which sends a debrief to the maker only when you explicitly say yes.

Configuration

Setting	Default	Description
`dendro-react.autoStartRuntime`	`false`	Auto-connect to React Native apps on activation
`dendro-react.runtimePlatform`	`auto`	Target platform: `auto`, `ios`, `android`, or `device`
`dendro-react.runtimePort`	`8097`	DevTools WebSocket port
`dendro-react.runtimeHost`	`localhost`	WebSocket host (`0.0.0.0` for physical devices)
`dendro-react.projectorMode`	`false`	Larger fonts/strokes for screen sharing

Learn More

Setup Guide — manual setup, Cursor/Windsurf config, runtime connection, troubleshooting
Tools Reference — every MCP tool with descriptions

Feedback

Dendro is in early access. If something doesn't work, feels confusing, or you wish it did something different — I want to hear it.

Issues & ideas: GitHub Issues
Email: colin@rooneytech.com
Or just tell your agent to use submit_feedback — it knows what to do.

*Built by Colin Rooney. Originally derived from Reactive, built at OSLabs with Micah Ziegler and Susana Lam. Named after the Greek word for tree and the branching dendrites of neurons.*