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xianjianlf2/README.md

Mark Xian — Make AI feel useful.

Portfolio · Inkling · Say hello

I'm Mark, an AI product engineer in Guangdong, China. I build visual tools that turn documents and ideas into things people can work with.

Building Inkling

Inkling — an AI mind-mapping canvas. Muse turns PDFs into editable maps and builds on the changes you make by hand.

Inkling workbench showing Muse beside an editable weekly-planning mind map on a warm paper canvas

Inkling workbench · sample weekly plan. Tap to view full size.

Join the private beta →

Selected work

MindGeniusAI
Self-hostable document-to-mind-map agent with RAG.

gpt-image-2-tools
Bring-your-own-key image generation and editing. Try it →

apidoc2MCP
Turn API documentation into MCP service definitions.

Open-source activity

Selected contributions to the tools I use, from agent interfaces to JavaScript internals.

Project Contribution
Orca
Merged		 Hide stale merged PRs when a workspace moves to new commits
LangChain.js
Merged		 Let human reviewers respond on behalf of tools
Immer
Open		 Preserve sparse-array behavior in optimized filters
Effect
Merged		 Preserve interruption and timeouts in cached effects

All open PRs → · Merged contributions →

More about me

I rebuild tools to understand their internals: super-agent explores tool calling, MCP, and session memory; mini-vue and mini-react explore UI frameworks.

Toolbox · TypeScript · React · Hono · Python · MCP · Cloudflare

Writing on Juejin · More projects

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  1. MindGeniusAI MindGeniusAI Public

    An AI agent that reads your PDFs and draws editable mind maps — visible tool-calling loop, built-in RAG, bring-your-own-key, multi-provider (OpenAI / Claude / DeepSeek / Kimi). Self-hostable.

    TypeScript 284 61

  2. mini-vue mini-vue Public

    手写 Vue3 最小实现：响应式 / runtime(diff) / 模板编译器（mini-* 源码学习系列）

    TypeScript 67

  3. mini-webpack mini-webpack Public

    手写 webpack 最小实现：依赖图 / loader / plugin（mini-* 源码学习系列，按 Git 提交历史一步步搭建）

    JavaScript 1

  4. mini-compiler mini-compiler Public

    手写 the-super-tiny-compiler：词法 / 语法 / 转换 / 代码生成（mini-* 源码学习系列，按 Git 提交历史一步步搭建）

    TypeScript 2