Leonid M's articles
- about 2 months agoAI Coding
A Spec for an Agent Is a Test Plan in Disguise
A developer asks about the gap in your spec. A model fills it with the likeliest pattern and says nothing. That one difference changes what a spec has to contain.
- about 2 months agoAI Coding
Nothing Leaked. The Answer Just Disappeared.
An isolation test that passes on broken code, three ways it was still wrong after I fixed it, and what found each one. All of them green.
- about 2 months agoAI Coding
Your Supervisor Agent Is Probably a Switch Statement
The three multi-agent patterns, and the question the pattern diagrams never ask: does this routing decision actually need a model call, or just an if?
- about 2 months agoProgramming
Playwright 1.63: Test Locks, Visible Locators, and Better Traces
Playwright 1.63 adds named test locks, selector-less frame locators, locator.visible(), ARIA traces, and a Perfetto reporter. What a mature suite should adopt first.