Building an AI application is mostly plumbing: keys kept out of the repo, a plan for 429 responses, and a chunking engine for anything longer than the token limit. Notes on what keeps an AI feature running once it leaves your laptop.
Four reasons I build layouts with Tailwind utilities instead of named CSS classes: the structure stays readable, one-off grids never need a name, and a context change is a class edit rather than a modifier.
A pass through the CSS landing in browsers now: random() and random-item(), clip-path folded corners, the containing-block catch in anchor positioning, and tabular-nums for WooCommerce dashboards that refuse to sit still.
In WordPress 7.0 unsynced patterns open in contentOnly mode by default, so any block without a content role goes uneditable. What to fix in block.json, what the new listView support gives container blocks, and how to switch the whole thing off.
A dashboard shows you what moved. These five methods tell you what caused it: doubly robust estimation, instrumental variables, regression discontinuity, difference-in-differences, and CATE, with the Python I run on live WooCommerce data.
Peeking at results, skipping the power calculation and tracking twenty metrics turn most A/B tests into noise. Here is the pre-test protocol I use on WordPress and WooCommerce sites, plus the short checklist I run before starting a test.
WordPress 7.0 Beta 5 adds a Command Palette shortcut to the admin bar and closes more than 101 bugs. What the shortcut does, how to register your own commands with the API, and why I update beta sites with WP-CLI.
Most like-for-like reporting gets solved in DAX and then runs slowly. This is the model I build instead: a bridge table with a store-month key, the comparison logic in SQL and Power Query, and a sales measure that is nothing but SUM.
Chaining agents multiplies errors instead of dividing work: DeepMind measured up to 17.2x amplification. Here is the math behind that, the three topologies that hold up in production, and the checklist I run before shipping an agentic system.
Moment.js is in maintenance mode and still costs you bundle size. The JS Temporal API is native, immutable and Stage 4, so this walks through creating dates, arithmetic, Intl formatting and a time zone refactor in a WooCommerce extension.