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yifancong/README.md

Hi, I'm Yifan 👋

Frontend Infrastructure · Build Performance · Developer Tooling · AI Agents

Building tools that make modern frontend systems faster, more observable, and easier to maintain.

About me

  • 🛠️ I work on build analysis and developer tooling around the Rspack ecosystem, especially Rsdoctor.
  • 🦀 I'm interested in compiler and bundler internals.
  • 🤖 I'm exploring practical AI engineering through MCP, reusable agent skills, evaluation harnesses, and multi-agent systems.
  • 📍 Based in Hangzhou, China.

Open source

  • Rsdoctor — contributing to build analysis, performance diagnostics, core architecture, documentation, and releases.
  • Rspack — improving the data and integrations that connect a Rust-based bundler with build observability tooling.
  • Rspack ecosystem — working across build tools, CI workflows, bundle analysis, and developer experience.

Toolbox

Area Technologies
Languages TypeScript · JavaScript · Rust · Python
Build & runtime Rspack · Rsbuild · webpack · Node.js · NAPI-RS · pnpm
Performance Bundle analysis · Module graphs · Tree shaking · Source maps · Build profiling
AI engineering MCP · Agent Skills · Multi-Agent Systems
Delivery GitHub Actions · CI/CD · Testing · Release workflows

Pinned Loading

  1. web-infra-dev/rsbuild web-infra-dev/rsbuild Public

    Fast, extensible build tool for modern web development

    TypeScript 3.4k 272

  2. web-infra-dev/rsdoctor web-infra-dev/rsdoctor Public

    AI-friendly build analyzer for Rspack

    TypeScript 1.1k 98

  3. web-infra-dev/rsdoctor-action web-infra-dev/rsdoctor-action Public

    A GitHub Action for comprehensive bundle size analysis and reporting using Rsdoctor

    TypeScript 12 2