Notes on retrieval, support and shipping
How we build WelcomeAI, and what we learn from the teams running knowledge bases on it. No growth hacks.
FeaturedRetrieval
Why your chunk size is the answer to most bad answers
Eight hundred tokens with a hundred and twenty of overlap is a good default, not a law. Here is how to read your own retrieval scores and pick a better one.
MauroSep 2, 2026 · 2 min read
ProductAn assistant that cannot cite its source should not answerWhy every answer in WelcomeAI arrives with its passages, and what changes when a support team can check them.EngineeringWhat actually happens when you paste the script tagThe widget is 20 KB, renders in a shadow root, and never sees your page's CSS. Here is the whole path from tag to answer.
MauroAug 18, 2026 · 1 min
MauroJul 29, 2026 · 1 min