sunah kim

Korean full-stack engineer based in Japan. Backend: Java / PHP / Node.js · Frontend: React / Vue.js · Infra: AWS architecture, operations & cost management. I cover everything from design and developm

Joined on Oct 8, 2026

sunah kim

Oct 24

The 3 Principles of Harness Engineering — Map, Enforce, Accumulate

#ai #claudecode #llm #productivity

4 min read

sunah kim

Oct 23

Setting Up a Harness for Claude Code: Enforce Invariants with Hooks, Not Prompts

#ai #claudecode #llm #devtools

4 min read

sunah kim

Oct 22

Open Any Finder Folder in VS Code with One Keystroke (Automator Quick Action)

#macos #vscode #automator #productivity

3 min read

sunah kim

Oct 21

The Clipped Dropdown in a Collapsed Sidebar — the Hidden Meaning of overflow-y: auto

#css #frontend #react #debugging

3 min read

sunah kim

Oct 18

Permissions Hadn't Changed, but QA Said 'I Can't Create' — Answering with a Table Uncovered an Unreachable Branch

#java #backend #debugging #codequality

3 min read

sunah kim

Oct 17

Stamping a Company Seal on Excel Invoices: No Private Storage, a Lying resize(), and Three Coordinate Systems

#java #apachepoi #aws #excel

4 min read

sunah kim

Oct 16

The Unclickable Hamburger Button: Three Wrong Fixes Before I Found the CSS Bundle Order Bug

#css #debugging #frontend #react

3 min read

sunah kim

Oct 9

Connecting Zenn to a GitHub Repository: The Setup Steps and Two Pitfalls

#zenn #github #blogging #tutorial

3 min read

sunah kim

Oct 8

Building a Multilingual Blog Pipeline That Auto-Posts to Zenn, dev.to, and velog

#automation #githubactions #blogging #devops

4 min read

DEV Community

sunah kim

Badges

Writing Debut

The 3 Principles of Harness Engineering — Map, Enforce, Accumulate

Setting Up a Harness for Claude Code: Enforce Invariants with Hooks, Not Prompts

Open Any Finder Folder in VS Code with One Keystroke (Automator Quick Action)

The Clipped Dropdown in a Collapsed Sidebar — the Hidden Meaning of overflow-y: auto

Permissions Hadn't Changed, but QA Said 'I Can't Create' — Answering with a Table Uncovered an Unreachable Branch

Stamping a Company Seal on Excel Invoices: No Private Storage, a Lying resize(), and Three Coordinate Systems

The Unclickable Hamburger Button: Three Wrong Fixes Before I Found the CSS Bundle Order Bug

Connecting Zenn to a GitHub Repository: The Setup Steps and Two Pitfalls

Building a Multilingual Blog Pipeline That Auto-Posts to Zenn, dev.to, and velog