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👋 Hi, I'm Jaesoon Jeong — a software engineer in Tokyo building tools for the AI agent era.
🛠️ What I build
- agent-platform (codename Kollegium) — a control plane for running official Claude Agent SDK sessions: HTTP API, durable queues, isolated execution, and persistence.
- agent-guard — a lightweight plugin that stops coding agents from leaking secrets: it keeps .env files and API keys from ever reaching the LLM. Born from real incidents at work; designed to be fast and dependency-light. PII filtering is next on the roadmap.
- agent-skills — reusable skills for AI coding agents.
🌱 Why sponsor?
I build and maintain these in my personal time. Sponsorships help me dedicate more of it to maintenance and new features, and to writing up what I learn on my blog (94soon.dev) — so the tools stay free for everyone.
💖 Thank you
Every sponsorship — including my very first one this month — genuinely keeps these projects going. 🙏
1 sponsor has funded JeongJaeSoon’s work.
