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Tag: APIs

Development, Gutenberg

WordPress E2E tests with Playwright and wp-env

Manual regression testing was my bottleneck, so I automated it. This covers wp-env setup, Playwright with the WordPress test utils, and testing block variations and meta bindings without clicking through the editor.

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AI, Development

Stochastic programming for messy WordPress environments

Hard-coded constants assume a perfect environment. This covers four ways to model uncertainty, from robust optimization to two-stage recourse, and refactors a fixed cron batch size into one that reacts to load.

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Development, Front-end

The CSS hypot function: distance math without JavaScript

CSS has a hypot() function that does Pythagorean distance math and, unlike pow(), accepts units like px and rem. I cover what it returns, a cursor-proximity example using container style queries, and the edge cases worth knowing.

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Bug Fixing, Development

Categorical data normalization: the bug that tripled volatility

One ballot label counted as two parties made English local elections look like they were splintering. The fix was normalizing party families before aggregation instead of after, and the headline finding reversed once we did.

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Accessibility, Development, Front-end

Streaming content interfaces that don’t fight the user

Appending text to a container is the easy part. This post covers the scroll flag that stops snap-back, batching renders to keep layout shift down, ARIA live regions for screen readers, and cleaning up after a broken stream.

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Development, Front-end

Modern CSS and HTML APIs: what I’d ship and what I’d wait on

Notes on the newer platform features: HTML-in-Canvas behind a Chrome flag, the CSS content property for swapping an image source, sizes=auto for lazy-loaded images, and why e-ink browsers still lag behind.

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Core Updates, Development

WordPress 7.0 release: the Presence API and RC3 testing

WordPress 7.0 lands May 20, 2026, and RC3 on May 8 is now being treated as the new Beta 1. The experimental Presence API gets its own wp_presence table with a 60-second TTL for tracking who is editing what.

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AI, Development

Intent-based chaos engineering for WordPress resilience

Most WordPress resilience testing is refreshing the checkout page and hoping. Intent-based chaos engineering starts from a stated hypothesis about behavior instead, with fallback paths around external calls and abort signals tied to checkout completion rather than p99 latency.

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AI, Development

Ghost database for AI: why agents need throwaway Postgres

Ghost is an agent-first Postgres platform. Notes from using its MCP server and database forking to let AI agents test schema changes and index strategies without touching a shared staging database.

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AI, Development

Credit scoring model stability: monotonicity and PSI in Python

A credit model can score well and still fall apart in production if its variables drift. Two checks before estimation: whether each variable holds a consistent risk direction, and what PSI says about distribution shifts between datasets.

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