Notes from the Saytu team

What we learn building a Live2D character that answers preorder, sizing and authenticity questions on anime storefronts.

Draft vs live

A draft should never take the live answer down

Asking for a draft of an FAQ entry quietly unpublished the one the store was already giving. A write that sets a status is a visibility change.

Build logSeptember 21, 20264 min read

When every score ties, the ranking is a coin flip

Keyword scores tie constantly, and a tie handed the order to whatever the database returned. The fix is deliberately not an improvement.

Build logSeptember 21, 20263 min read

One store's reply

A turn id is whatever the client says it is

A retry handed one store the reply written for another. The key was a string the browser chose, used across a collection that spans every tenant.

Build logSeptember 21, 20264 min read

What it keeps

Three windows, and what the assistant is allowed to keep

A transcript for a day, the subjects for a month, personal data anonymised at ninety. Three numbers that used to disagree, and why there will not be a fourth.

Build logSeptember 21, 20264 min read

Uploading your own Live2D model, and what actually stops you

Five ways a model folder fails on the way into a storefront. Two of them raise nothing at all, and the other three blame the wrong thing.

Live2DSeptember 21, 20265 min read