Blog
Build logs and field-tested opinions on building for Tableau with AI — extensions, Claude Code, the Extensions API, and what actually works when you put a model in front of a real estate.
You have a .trex and a folder of files, and to use them they have to live on the internet. Here's the part nobody explains: why hosting exists, the one hard rule (HTTPS with a real certificate), and the two ways to get it done.
Skip the table calcs and floating containers. Here's how to build a reusable Tableau KPI card as a custom extension with Claude Code, in one prompt, and when the native route is still fine.
A Claude Code skill is the memory you hand the AI before you prompt: your rules, patterns, and fixes, baked in. Here's what a skill actually is, why it beats a better prompt, and what changes when you use one.
I gave Claude Code the same prompt twice: once with a Tableau extensions skill, once without. Same model, same data. One fought the manifest for 40 minutes. The other built a working KPI card on the first prompt. Here's why.