·Portfolio

Things I shipproducts, the skills that build them, and the stack underneath.

02A · Products

What we ship.

02B · Skills · Open source

The writing and review parts of how I ship.

The same Claude Code skills I use to draft these essays and pressure-test my own engineering plans. Each is a markdown prompt workflow; install by cloning into ~/.claude/skills/.

Repos · github.com/lucasyhzhu-debug Install · 30 seconds License · MIT, per repo
02C · The stack
live · updated build-time

How the work actually gets done.

An AI-native operating model, made personal. Five tools, one operator. The customised GSD harness sits on top of Claude Code — phases, plans, executors, verifiers, all tuned to my own cadence.

Primary build surface. Every line, every commit, every diligence brief written via subagents.

Claude Code

Primary build surface. Every line, every commit, every diligence brief written via subagents.

36.8M tokens / 104 days
Customised harness over Claude Code. Discuss → plan → execute → verify, with my own slash commands and review gates.

GSD

Customised harness over Claude Code. Discuss → plan → execute → verify, with my own slash commands and review gates.

62 custom skills
Public OSS plus private Frollie monorepo. Branch protection, PR review automation, Actions for CI & nightly diligence runs.

GitHub

Public OSS plus private Frollie monorepo. Branch protection, PR review automation, Actions for CI & nightly diligence runs.

2,367 commits / 101 days
Reactive backend for Frollie Pro. Real-time queries across operations, inventory, sales, financials, and accounting.

Convex

Reactive backend for Frollie Pro. Real-time queries across operations, inventory, sales, financials, and accounting.

337 backend modules
Frollie Pro operator dashboard, per-brand consumer apps, lecture site, and this portfolio — all on one Vercel team.

Vercel

Frollie Pro operator dashboard, per-brand consumer apps, lecture site, and this portfolio — all on one Vercel team.

5 apps live
8systems live in Frollie Pro
32features built
90 daysfrom zero to profit
1operator