tarr

I moved my coding agent's memory out of the chat window and into files — tasks, state, decisions, accumulated knowledge. The same model started behaving like it had been on the team for months.

A warm, opinionated little itinerary for a first trip to Lisbon — three days of hills, tiles, custard tarts and sunsets, with just enough of a plan.

The padlock in your address bar, explained — how a browser and a server agree on a secret no one else can read, in five steps.

Every Markdown rule you actually use, on one page — syntax on the left, what it renders on the right.

A tiny Pomodoro timer — 25 minutes of focus, 5 to breathe. One page, no account, your streak saved in the browser.

AIエージェントのメモリ設計を、直交する2軸——single source of truth をファイルに置くかDBに置くか / 検索を字句スキャン(grep)で行うか事前計算インデックスで行うか——とスケールという駆動力で整理する。15ツールを2D座標に置き、ポータビリティとクロスエージェント性まで技術的に検討するフィールドガイド。

Cloudflare Workers + R2 + D1 で動く HTML 公開サービス zinefold の最初の本番ページ。