BestHub
Sign in
Youzan Coder
Author

Youzan Coder

Official Youzan tech channel, delivering technical insights and occasional daily updates from the Youzan tech team.

340
Articles
0
Likes
527
Views
0
Comments
Recent Articles

Latest from Youzan Coder

100 recent articles max
Youzan Coder
Youzan Coder
Apr 7, 2026 · Industry Insights

How a Structured Knowledge Wiki Supercharges AI Coding Efficiency

This article analyzes why building a layered knowledge wiki tied to workspace and Git submodules dramatically reduces context entropy for AI coding, outlines the five knowledge categories, progressive disclosure design, multi‑agent initialization workflow, and the measurable productivity gains and governance benefits achieved in practice.

AI codingAgent orchestrationProgressive Disclosure
0 likes · 24 min read
How a Structured Knowledge Wiki Supercharges AI Coding Efficiency
Youzan Coder
Youzan Coder
Jan 13, 2026 · Artificial Intelligence

From Hackathon to Scalable AI Customer Service: Lessons and Best Practices

This article chronicles the end‑to‑end development of an AI‑driven customer service system, detailing the shift from a rapid‑prototype Dify platform to a hybrid engineering architecture, model selection strategies, workflow design, knowledge engineering, evaluation methods, and future directions for continuous improvement.

AI Customer ServiceEvaluation Frameworkprompt engineering
0 likes · 21 min read
From Hackathon to Scalable AI Customer Service: Lessons and Best Practices
Youzan Coder
Youzan Coder
Jan 6, 2026 · Artificial Intelligence

How to Build Efficient Code Search with Vector Embeddings and AST Indexing

This article explains the motivations, techniques, and practical implementations of code indexing—covering semantic vector‑based RAG pipelines and AST‑based structural analysis—to improve code navigation, AI‑assisted queries, security scanning, and development efficiency.

AI developmentASTRAG
0 likes · 17 min read
How to Build Efficient Code Search with Vector Embeddings and AST Indexing
Youzan Coder
Youzan Coder
Nov 21, 2025 · Artificial Intelligence

How to Build, Evaluate, and Optimize AI Test Agents: A Practical Guide

This guide walks you through creating AI‑powered test agents, defining success metrics, building evaluation datasets, crafting and refining system prompts with techniques like chain‑of‑thought, XML, few‑shot and concise inputs, and scaling the workflow by splitting agents and managing prompt versions.

AI agentsLLMevaluation
0 likes · 21 min read
How to Build, Evaluate, and Optimize AI Test Agents: A Practical Guide
Youzan Coder
Youzan Coder
Sep 3, 2025 · Mobile Development

How Skyline Engine Gives WeChat Mini Programs Near‑Native Mobile Performance

This article explains how the Skyline rendering engine improves WeChat Mini Programs by eliminating first‑frame white screens, accelerating page transitions, and delivering native‑like experiences through data pre‑loading, animation techniques, and detailed migration steps.

First Frame RenderingFront-end DevelopmentHybrid App Optimization
0 likes · 13 min read
How Skyline Engine Gives WeChat Mini Programs Near‑Native Mobile Performance
Youzan Coder
Youzan Coder
Aug 13, 2025 · Artificial Intelligence

Understanding AI Agents: Core Modules, Planning Strategies, and Evaluation

This article explains what an AI agent is, outlines its four core modules—perception, memory, planning, and action—describes the role of large language models, compares software development generations, discusses memory implementations, planning methods like ReAct and Plan‑and‑Solve, and covers evaluation, cost analysis, and differences between agents and workflows.

AIAgentLLM
0 likes · 15 min read
Understanding AI Agents: Core Modules, Planning Strategies, and Evaluation
Youzan Coder
Youzan Coder
Aug 4, 2025 · Artificial Intelligence

How to Quantify a “Good Image” for AI‑Generated E‑Commerce Graphics?

This article explains how to define and objectively evaluate the quality of AI‑generated product images for e‑commerce by decoupling assessment from the generation pipeline, selecting quantifiable metrics such as CLIPScore and Inception Score, building a lightweight evaluation system, cleaning and labeling data, and validating the approach with real‑world business and model datasets.

AI image evaluationCLIPScoreE-commerce AI
0 likes · 26 min read
How to Quantify a “Good Image” for AI‑Generated E‑Commerce Graphics?
Youzan Coder
Youzan Coder
Jul 18, 2025 · Cloud Native

How Mixed Workloads Boost Kubernetes CPU Utilization by Over 40%

This article explains how Youzan transformed its Kubernetes clusters from static over‑commit scheduling to load‑balanced mixed workloads using Koordinator and the Longxi kernel, achieving higher CPU utilization, lower costs, and better resource management for both online and offline services.

KoordinatorKubernetesbig data
0 likes · 10 min read
How Mixed Workloads Boost Kubernetes CPU Utilization by Over 40%
Youzan Coder
Youzan Coder
Jul 11, 2025 · Artificial Intelligence

How AI Boosted Full‑Stack Development Efficiency by Up to 80%

This article details how the Youzan BumpTag team leveraged AI tools across mobile, backend, and frontend development to accelerate feature implementation, code generation, and testing, achieving efficiency gains of 60‑80% while sharing practical cases, pitfalls, and future AI‑driven skill development plans.

AIcode generationfull-stack development
0 likes · 13 min read
How AI Boosted Full‑Stack Development Efficiency by Up to 80%