Yushi's Blog

The acronym I waved off I’m comfortable with a few of the development acronyms.

The thing I kept getting wrong During recent client work, I noticed something about myself that I’d been ignoring for a long time.

The shift I didn’t expect The more I use coding agents, the less source code feels like the thing I personally write.

The feature I kept ignoring Git worktree gives you multiple working directories for the same repository, which makes it useful when AI agents or teammates need to work on different branches in parallel without constantly switching context.

The mental model The shortest version is this: prompt engineering sets the goal, context management decides what information the model sees, and the harness checks whether the result is actually correct.

The moment that stuck with me A RAG chatbot is more useful when it refuses to answer questions that are not covered by the retrieved context.

What I thought I knew Prompt caching changes AI agent costs by separating stable prompt content from changing prompt content.

The part that keeps clicking I finished my first RAG chatbot a week ago.

What I just built I just finished my first RAG solution.

The black box problem Everyone knows prompts matter.

Living with all three I pay for all three major AI subscriptions.

A developer out of their comfort zone I’ve been working on some frontend-heavy projects recently, and it pushed me into unfamiliar territory: actual UI design.

The Course That Changed My Perspective I just finished the official “Claude Code in Action” course from Anthropic, and honestly?

The Tool Problem Working with AI agents, especially in programming contexts, has taught me one fundamental truth: tools are everything.

The Revelation That Changed Everything Today I want to talk about something that’s been on my mind all day: AI agents.

The AI Development Revolution in Team Settings Working in a team of four developers, all leveraging AI tools for development, has been an eye-opening experience.

The Speed Problem Nobody Expected For years, we developers chased speed.

The Challenge of Project Rebuilding Today I want to talk about a challenge that every developer faces: how to effectively understand and rebuild an existing project.

Rediscovering Git Worktrees for AI-Assisted Development Today I’ve been thinking about how traditional version control systems like Git are evolving in the AI age.

Discovering Bellman-Ford’s Hidden Power Today I stumbled upon a fascinating application of the Bellman-Ford algorithm that goes beyond traditional shortest path problems.

It’s been quite a while since I captured my thoughts.

Today I focused on learning Figma and dove deep into several fundamental design concepts that were completely new to me.

Confronting My Designer Stereotype Yesterday brought an important breakthrough.

Deep Dive into Data Mining Today and yesterday, I’ve been immersed in data mining concepts, reviewing lectures and working through the material.

Today I focused on improving my development workflow and code quality processes, discovering some fascinating tools that could transform how I approach coding standards.

Today I continued working on my portfolio project, but with a completely new approach that’s proving to be incredibly valuable for my learning.

Today I learned about two important things that got me thinking about the future of AI development and product building.

Yesterday I joined a small hackathon and really enjoyed the whole experience.

Portfolio Website Planning – From Idea to Action Today I finally moved beyond just thinking about my portfolio website and started actually planning it.

LinkedIn Strategy Development Today I had a deep conversation with ChatGPT about LinkedIn connection strategy, specifically around the psychological and strategic importance of reaching 500 connections.

Industry Night Reflections Yesterday’s Industry Night event turned out to be quite enlightening.

Portfolio Workshop Breakthrough Had a portfolio workshop today that completely shifted my perspective.

On the Road to University Today I’m traveling to university, and my mind is still processing yesterday’s deep dive into Scrum methodology.

Algorithm Deep Dive: Bellman-Ford Had a fascinating morning diving into graph theory, specifically the Bellman-Ford algorithm.