rsdoctor

Local

github.com/web-infra-devDeveloper Tools1.2kUpdated 2d ago

About rsdoctor

Rsdoctor is a build analysis tool for the Rspack ecosystem, aimed at developers investigating build issues and JavaScript performance bottlenecks. It visualizes compilation and examines output and build steps, while supplying build data for agent-driven diagnosis.

Key features

01Compilation process visualization
02Build timing and bottleneck analysis
03Asset, size, and dependency inspection
04Loader and Plugin execution analysis
05Module resolution inspection
06Duplicate package and syntax checks

Use cases

01Investigate slow or failing builds
02Inspect output assets and module dependencies
03Trace Loader, Plugin, or module resolution behavior
04Provide build data for agent diagnosis

MCP support

The MCP server exposes Rsdoctor build analysis data to agents for automated diagnosis and optimization of JavaScript programs.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config

{
  "mcpServers": {
    "yifancong-rsdoctor": {
      "command": "npx",
      "args": [
        "-y",
        "@rsdoctor/mcp-server"
      ]
    }
  }
}

Run commandnpx -y @rsdoctor/mcp-server

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages

npm@rsdoctor/mcp-server0.1.2-beta.0stdio

Tools

Saved tool list · updated 2w ago

This tool takes no parameters.

Details

From the project README

Rsdoctor

English | 简体中文

Rsdoctor is a build analysis tool for the Rspack ecosystem. It visualizes the build process and output to help developers investigate build issues and identify performance bottlenecks. It also provides build data to agents for automated diagnosis and optimization of JavaScript programs.

🔥 Features

Agent-Driven Analysis: Provides build data to agents for automated diagnosis and optimization of JavaScript programs
Compilation Visualization: Visualize the compilation process and timing to troubleshoot build issues and identify performance bottlenecks
Comprehensive Analysis: Analyze build output, inspect the build process, and run diagnostic checks:
- Output Analysis: Inspect assets, output sizes, and module dependencies
- Build Process Analysis: Inspect Loader and Plugin execution and module resolution
- Diagnostic Checks: Detect duplicate packages and check ECMAScript syntax versions to identify potential build issues

📚 Getting started

To get started with Rsdoctor, see the Quick Start.

🤝 Contribution

New contributors welcome!

Please read the Contributing Guide.

🧑‍💻 Community

Come and chat with us on Discord! The Rstack team and users are active there, and we're always looking for contributions.

🦀 Rstack

Rsdoctor is part of Rstack, the fast, unified JavaScript toolchain for developers and agents.

Name	Description	Version
Rspack	Bundler
Rsbuild	Build tool
Rslib	Library development tool
Rspress	Static site generator
Rsdoctor	Build analyzer
Rstest	Testing framework
Rslint	Linter

🙌 Code of conduct

This repo has adopted the ByteDance Open Source Code of Conduct. Please check Code of Conduct for more details.

🙏 Credits

Some of the implementation of Rsdoctor refers to the excellent projects in the community, and we would like to thank them:

bundle-stats is an excellent tool for analyzing build artifacts, and Rsdoctor is inspired by it in terms of build analysis.
webpack-bundle-analyzer is a classic tool for analyzing Webpack, and Rsdoctor is inspired by it in terms of build artifact analysis. Rsdoctor also uses its classic treemap visualization.
Statoscope is an excellent tool for analyzing build artifacts, and Rsdoctor is inspired by it in terms of build analysis.
Webpack Team and Community have created an excellent bundling tool and a rich ecosystem.
vite-plugin-inspect has inspired Rsdoctor's exploration of build process analysis.

This Rsdoctor website is powered by Netlify.

📖 License

Rsdoctor is licensed under the MIT License.

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