[ Mods — small things for the tools you work in ]

Side projects that plug into the AI tools you already use

Each one does a single small job and tries to make you smile while it does it. Built in Tokyo, between client work, with the same care as the work. Free unless it says otherwise.

1Mod shipped, more on the bench

0Bytes that leave your machine

15Outfits in the first one

¥0Price, no account, no analytics

[ Shipped — 1 ]

Mac apps first. A Claude Code plugin and a ChatGPT app are on the bench, waiting on their platforms.

01 / 01

Koharu

A token accountant who stands on your desktop. As your Claude Code context fills, her work day wears her down, until she changes into pajamas and it's time to compact.

Platform: macOS 14 or later. Reads Claude Code and Codex session logs
Shape: Desktop pet, menu bar item, seven tiers of tired
Since: October 2026, version 0.2.0

Tiers from first coffee to pajamas

Outfits, seasonal ones switch themselves

6 MB

Notarized download, nothing phones home

Meet Koharu See her wardrobe ↗ Download for Mac ↓

[ Next — when the platforms are ready ]

A Claude Code plugin and a ChatGPT app are waiting on their doors to open

Both are built. Hook modules for installed Claude Code plugins are still early access, and the ChatGPT app directory is not taking submissions from me yet. When either changes, they appear here.

Tell me what to build next