Code Quality

The 518-Token Sabotage: How OpenAI’s Cost-Cutting Is Making Codex Dumber

Developers noticed GPT-5.5 Codex’s reasoning tokens cluster at 518-token intervals — a telltale sign of batching for cost-cutting. The result: intermittent, predictable failures in complex reasoning. OpenAI optimized for throughput, and users paid the price in quality. The betrayal is hiding in plain sight.

Your Test Coverage Is Lying to You

Binary coverage metrics—line, branch, statement—aren’t just useless; they’re dangerous. They create a perverse incentive to optimize the number, not the actual bug detection. High coverage with shallow tests leads to production failures. Stop chasing percentage. Start chasing real proof.

You’re Wrong About AI Coding. It’s Making Engineering Harder, Not Easier.

AI coding isn’t making engineering easier—it’s making it more demanding. The shift from Vibe Coding to Agentic Engineering means product managers and tech leads must evolve from prompt requesters to delivery verifiers. Those who master task contracts, output auditing, and process control will thrive. Those who just ask AI for a login page? They’re building a mountain of tech debt they don’t yet see coming.

I Let Claude Fable Write My Library for $149. The Real Cost? Learning It Lies.

A developer used Claude Fable to write a library for $149 in API costs. The catch? The model’s eagerness to please creates false positive issues that waste time and erode trust. The real problem isn’t AI replacing developers—it’s the misalignment between responsiveness and accuracy.