Changsu Seong

Frontend developer passionate about React, performance optimization, and AI-powered developer tools. I enjoy solving real-world engineering problems and contributing to open source.

Seoul, South Korea Joined on Sep 18, 2026 https://3d-blog.vercel.app/

Education

B.S. in Chemistry

Work

Frontend Developer at Shopl

Changsu Seong

Oct 11

I let a 322M local model judge every shell command my coding agent runs

#ai #security #opensource #python

6 min read

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Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿

Changsu Seong

Oct 9

Should I Go Out? A Local Gemma Agent That Picks One Outdoor Plan, Then Tells You to Put Your Phone Away

#devchallenge #hf26challenge #ai #opensource

11 min read

Changsu Seong

Sep 18

Your SKILL.md is production config. Test it like one.

#ai #programming #testing #opensource

3 min read

DEV Community

Changsu Seong

Badges

Writing Debut

Skills/Languages

Currently learning

Currently hacking on

Available for

I let a 322M local model judge every shell command my coding agent runs

Want to connect with Changsu Seong?

Should I Go Out? A Local Gemma Agent That Picks One Outdoor Plan, Then Tells You to Put Your Phone Away

Your SKILL.md is production config. Test it like one.