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Testing & Quality
Unit/integration tests, fuzzing, reliability, and observability for apps.
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A Determinism Check Has to Leave the Process
1+ hour, 34+ min ago (1536+ words) Code: Megapixel99/nondet The obvious way to check whether a Python function is deterministic is to call it twice and compare. I wrote that check, and it is blind to the commonest source of nondeterminism in the language. String hashing is…...
A New Model Dropped. Don't Just Swap the ID.
1+ hour, 46+ min ago (845+ words) The new model is out. The benchmarks look great. Your provider has already scheduled the sunset date for the one you are running. So you swap the model ID, run a few requests, see nothing obviously broken, and ship. I…...
Jev vs a 310M encoder I trained myself: 750 rows, three tasks, two different winners
2+ hour, 6+ min ago (960+ words) One-line summary: A decision API wins when you have no labels; a small trained encoder wins when you have a few hundred — and which one wins on a given task is decided by the shape of the task, not by…...
One Predicate, Two Meanings, Three Bugs: Building a Contradiction Resolver with the Sanity App SDK
2+ hour, 14+ min ago (1264+ words) by shahbaz_ali. Built for the DEV × Sanity Challenge. #sanitychallenge When two of your company's... Tagged with sanitychallenge, sanity, devchallenge, ai....
AI Model Reads Entire Blockchain Code to Catch Smart Contract Flaws
8+ min ago (55+ words) Smart contracts have quietly become the financial plumbing of the blockchain world. These self-executing programs, deployed primarily on platforms such as Ethereum, power everything from cryptocurrency transfers to the sprawling ecosystem of decentralized finance, known as DeFi, where billions of…...
The Commit That Wouldn’t Merge
5+ hour, 6+ min ago (42+ words) The Invalid State of PR #48 The merge button was gray. Thirty cycles in, that was the only... Tagged with ai, autonomousagents, python....
A PASS over an empty set is the same string as a real pass
5+ hour, 26+ min ago (833+ words) Our journal's tree carries four small instruments that print a verdict over a set of files. A pre-commit hook runs them; the run's output goes into the commit message and the pull-request body, where it serves as the record that…...
Four bugs my test suite couldn't catch
5+ hour, 45+ min ago (888+ words) 216 passing tests. A feature that was completely broken. Here is the gap between those two facts, and what I changed afterwards. I am building an encrypted messenger. Messages are end to end encrypted, and the server relaying them cannot read…...
A 25-verifier panel measured an effective size of 1.00
6+ hour, 41+ min ago (474+ words) Generation got cheap. Trustworthy review did not. So we add reviewers. More eyes on the PR, more verifiers in the gate, a panel of LLM judges instead of one. The assumption underneath is that each additional reviewer adds independent evidence....
Why my builds don't run on my laptop
7+ hour, 15+ min ago (531+ words) My React Native app has never been compiled on my own machine. Not once. That started as a limitation and turned into the thing that keeps my releases boring. During development I don't build at all. The JavaScript layer runs…...