Sunagaku Labs

Labs

A small product lab for playful AI-assisted experiments, keeping both the finished work and traces of how it was made.

Wedding Ring Brand Finder screenshot
AI Discovery 2026.09.25

Wedding Ring Brand Finder

An unofficial Japanese tool: write a rough note about your partner and pick a budget to see the three best-fitting brands from a curated list of brands that sell wedding rings in Japan, with fit scores, price guides, and links to official sites.

React Astro TypeSafe Jev Claude Code
ムリナンダイ CHECK screenshot
AI Decision Support 2026.09.22

ムリナンダイ CHECK

Built for the Sunagaku booth at the Japanese event 生成AIなんでも展示会 Vol.6. The request text goes to TypeSafe Jev, which returns OK or NG with a feasibility score, and OK requests are checked once more for whether they are clear enough to build. The interface is Japanese only.

React Astro Hono TypeSafe Jev Claude Code
X Buzz Check screenshot
Writing Tool 2026.09.21

X Buzz Check

What could make your post catch on? This Japanese writing diagnostic checks clarity, reasons to share, and expressions to review before you post on X. It evaluates the text itself and does not predict virality.

X posts Writing Feedback
CANDY TUNE Oshi Finder screenshot
AI Discovery 2026.09.21

CANDY TUNE Oshi Finder

Answer three short questions about performances and interests, then discover a member through sourced profiles and an official group introduction video.

React Astro TypeSafe Jev YouTube
Gravity Ink Maze screenshot
AI Vibe Game 2026.06.14

Gravity Ink Maze

An experimental game shaped through a design conversation with Claude, visual exploration with Image Gen, and a Matter.js physics build with Codex.

Canvas Matter.js Image Gen Claude Codex
KANOJO CHECK screenshot
AI Decision Support 2026.09.20

KANOJO CHECK

KANOJO CHECK is a Japanese language decision aid: send a planned post to one TypeSafe Jev Noul question and see only a 0–100 probability.

React Astro Cloudflare Workers TypeSafe Jev