Notes on agentic development.

Journal We killed WooCommerce checkout race conditions with boring, proven telemetry

Sep 13, 2026

We killed WooCommerce checkout race conditions with boring, proven telemetry

A Fortune 500 apparel checkout started double-charging—race conditions and permission drift hid until we instrumented every state change.

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Sep 12, 2026

llms.txt is API design: stop trusting crawlers to guess your meaning

The wrong excerpt isn’t a “SEO issue”—it’s a contract breach with crawlers. llms.txt fixes the contract by design.

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Sep 11, 2026

LLMs.txt isn’t SEO—stop writing it like marketing copy

We fixed an agent that hallucinated product terms by treating llms.txt as a build artifact, not a blog page.

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Sep 10, 2026

Don’t fragment until you can own the blast radius

If your team can’t define latency, tenancy, and rollback boundaries, microservices and agents will slow you down—not scale you.

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Sep 9, 2026

WooCommerce checkout race conditions: what broke, and what we fixed

A production checkout bug only triggered on peak load—once we forced idempotency, the incident stopped recurring.

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Sep 8, 2026

Checkout bugs that hide in cache and permissions are the real threat

The fastest reliability wins came from three failures: checkout races, headless ISR stale caches, and multisite role ghosts.

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