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opanai404/README.md
hrniu — agent systems, browser products, and developer tooling

Hi, I'm hrniu. / 你好，我是 hrniu。

I build explainable agent systems, browser-native products, and practical developer tooling.
我专注于可解释智能体系统、浏览器原生产品与实用开发工具。

My work spans Java and Spring AI backends, vanilla JavaScript experiences, and reusable Codex workflows. I care about clear architecture, fast local setup, and software that stays easy to understand after the first impression.
我的工作覆盖 Java 与 Spring AI 后端、原生 JavaScript 交互体验，以及可复用的 Codex 工作流； 重视清晰架构、快速本地启动和长期可维护性。

Play the browser arcade / 在线体验  ·  Browse all repositories / 浏览项目  ·  Explore Codex skills / 查看技能库

Selected work / 精选项目 · Capabilities / 专业能力 · Working principles / 工作原则 · Current focus / 当前方向

Selected work · 精选项目

Browser Game Arcade

Browser Game Arcade
A curated collection of browser-native mini games and interactive experiments with no build step required.
无需构建即可运行的浏览器原生小游戏与互动实验合集。

Play live / 在线体验 · View source / 查看源码

Insurance Underwriting Agent

Insurance Underwriting Agent
An explainable Java agent with RAG, deterministic rules, MCP tools, decision replay, and auditable execution traces.
以 RAG、确定性规则、MCP 工具、决策重演和审计轨迹构成的可解释 Java 智能体。

Explore the architecture / 查看架构

Codex Skills

Codex Skills
Reusable workflow extensions for local automation, focused problem solving, and repeatable delivery.
面向本地自动化、聚焦式问题解决和可重复交付的工作流扩展。

Browse the skills / 查看技能

Harvest Valley Lite

Harvest Valley Lite
A compact Canvas farming game with a complete playable loop and a deliberately lightweight implementation.
基于 Canvas 的轻量农场游戏，具备完整可玩的核心循环。

View source / 查看源码

Capabilities · 专业能力

Agent systems
智能体系统

Java 21, Spring Boot, Spring AI, RAG, MCP, deterministic rules, async workflows, observability, replay, and auditability.

覆盖可解释智能体的检索、规则、异步编排、可观测性、重演与审计。

Browser products
浏览器产品

Vanilla JavaScript, Canvas, accessible interfaces, responsive layouts, browser automation, and fast feedback loops.

构建无需复杂工程配置、兼顾可访问性和响应式体验的浏览器产品。

Developer tooling
开发者工具

Codex workflows, Git and GitHub automation, testable local tooling, documentation systems, and pragmatic delivery pipelines.

沉淀可测试、可复用的 Codex、Git/GitHub 自动化与交付工具。

Working principles · 工作原则

  • Make the system legible. Important decisions should be traceable in the architecture, the runtime, and the documentation.
    让系统可读。 关键决策应能从架构、运行过程和文档中被追踪。
  • Keep the first run simple. Useful local defaults and clear setup paths matter more than unnecessary infrastructure.
    让首次运行简单。 优先提供实用的本地默认配置和清晰启动路径。
  • Design for inspection. Code should remain readable, testable, and easy to extend after the polished surface draws people in.
    为审查而设计。 视觉吸引人之后，代码仍应清晰、可测试、易扩展。
  • Treat presentation as delivery. The README, project metadata, live experience, and source should tell one coherent story.
    把呈现视为交付。 README、项目元数据、在线体验与源码应讲述同一个故事。

Current focus · 当前方向

  • Advancing explainable agent workflows with stronger evaluation, replay, and governance.
    推进具备更强评估、重演与治理能力的可解释智能体工作流。
  • Building browser-native interaction systems with memorable mechanics and minimal setup.
    构建机制鲜明、启动简单的浏览器原生交互系统。
  • Packaging repeatable Codex workflows for practical local development.
    将可重复的 Codex 工作流沉淀为实用的本地开发能力。
  • Turning prototypes into portfolio-quality projects with clear architecture and verification.
    通过清晰架构与可靠验证，将原型打磨为作品集级项目。
Build the useful thing. Explain it clearly. Leave it easier to extend.
构建真正有用的产品，清楚解释它，并让后来者更容易扩展。

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