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News
Where AI review pays: the codebase matters more than volume
6+ hour, 14+ min ago (329+ words) The question I keep getting is how a team can review the growing volume of AI-generated code. Most answers start with throughput: faster review tools, more automated checking, larger batches. That assumes the problem is volume. The review I read…...
Fixing the Proxy Deleted the Objective: The Style Review Removed a CTA and Every Accuracy Gate Passed
6+ hour, 52+ min ago (181+ words) Originally published on hexisteme notes. Closing this out took more than restoring the CTA. Four changes, each aimed at a different point where the same shape of failure could recur: And I split the downstream metric so "no data yet…...
I built a ReDoS scanner that proves each bug offline — and hands you a verified fix
9+ hour, 21+ min ago (442+ words) A regular-expression denial-of-service bug is a regex whose backtracking engine can be pushed into super-linear (often exponential) time by a short, hand-crafted input. The textbook shape is a quantifier inside a quantifier: The scary part is that these patterns look…...
# 3 Ways I Use AI to Auto-Generate Playwright Locators
9+ hour, 24+ min ago (381+ words) If you've maintained a Playwright suite for more than a few months, you know the real cost isn't writing tests — it's the constant locator rot. A designer tweaks a class name, a component gets refactored, and suddenly a dozen tests…...
The measurement in my permanent log was a string literal
12+ hour, 19+ min ago (474+ words) This line is in a record I cannot edit, because the record is append-only and that is the point of it: It reads as a measurement that found nothing. It is a placeholder. The three zeros are characters in the…...
CUPED: How to Make Your A/B Test Smarter Without Finding More Users
8+ hour, 22+ min ago (694+ words) An intuitive, no-heavy-math guide to one of the most useful ideas in product experimentation to not get DUPED. Imagine you’re a …...
Pin Observed Behavior Before an Agent Patch Moves It
12+ hour, 50+ min ago (944+ words) Agent patches should not merge on a green suite. Green only means the patch agreed with the tests that ran. The merge question is tighter: did observed outputs stay inside a frozen characterization envelope, did error paths gain properties the…...
I Tested AI Coding Agents for 30 Days - Here's What Actually Changed
13+ hour, 15+ min ago (583+ words) I ran three agents across different tasks over a month: Claude Code (Anthropic), GitHub Copilot CLI, and Cursor in agent mode. Same codebase, same problems, same evaluation criteria. No cherry-picking wins. The projects were not demos. A small SaaS API…...
For Me, TDD Is Therapy
14+ hour, 6+ min ago (1191+ words) While watching the podcast How Kent Beck Shapes the Software Engineering Industry, I heard Kent Beck describe the anxiety he felt while developing software and how Test-Driven Development helped him deal with it. I immediately recognized that feeling. I have…...
The test that failed every morning and passed every afternoon
14+ hour, 38+ min ago (721+ words) Originally published on the WatchNext blog. While making an unrelated change — adding a processor to a privacy page and a link to a footer — the test suite came back with eleven passes and one failure: An episode airing tomorrow was…...