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← Development should never be driven by tests: how much to test is an…

12 connected korrents · 12 moments from 18 Nov 2014 to 12 Sept 2026.

Everything filed under software quality software quality Everything filed under coding agents coding agents Everything filed under developer tools developer tools Everything filed under code generation code generation Same subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subject Read this korrent: Development should never be driven by tests: how much to test is an engineering decision to be costed project by project, not a methodology to adopt by default. Development should never be driven bytests: how much to test is an engineeringdecision to be costed project by project,not a methodology to adopt by default. Last stated 2 months ago 26 Aug 2026 CM Casey Muratori — holds since 2026-08-26 — tap for who they are Same subject: Test-driven development matters more with coding agents than it ever did with people, because its real effect is stopping the agent writing more code than the task needs. — tap to centre the map on it Test-driven development matters morewith coding agents than it ever didwith people, because its real effectis stopping the agent writing morecode than the task needs. Last stated 7 months ago 19 Mar 2026 SW Simon Willison — holds since 2026-03-19 — tap for who they are Same subject: How much to test is an economic calculation a team should actually run, not a matter of principle. — tap to centre the map on it How much to test is an economiccalculation a team should actuallyrun, not a matter of principle. Last stated 12 years ago 18 Nov 2014 DL Dan Luu — holds since 2014-11-18 — tap for who they are Same subject: Almost every software project has cheap testing wins left on the table: basic random testing, static analysis and fault injection pay for themselves the first time they are run. — tap to centre the map on it Almost every software project hascheap testing wins left on thetable: basic random testing, staticanalysis and fault injection pay forthemselves the first time they arerun. Last stated 11 years ago 12 Dec 2015 DL Dan Luu — holds since 2015-12-12 — tap for who they are Same subject: A model can now port essentially any codebase from one programming language to another, work that used to take a team over a year. — tap to centre the map on it A model can now port essentially anycodebase from one programminglanguage to another, work that usedto take a team over a year. Last stated 3 months ago 27 Jul 2026 BC Boris Cherny — holds since 2026-07-27 — tap for who they are Same subject: Agents are the new compilers that compile intent into fast software. — tap to centre the map on it Agents are the new compilers thatcompile intent into fast software. Last stated a month ago 12 Sept 2026 GR Guillermo Rauch — holds since 2026-09-12 — tap for who they are Same subject: AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much. — tap to centre the map on it AI acceleration threatens 'lesssoftware': without the constraint ofscarce hours, even 37signals willlikely build too much. Last stated 3 months ago 26 Jul 2026 DH David Heinemeier Hansson — holds since 2026-07-26 — tap for who they are Same subject: "I don't know" becomes a kind of superpower when you can work with Claude Code to figure things out. — tap to centre the map on it "I don't know" becomes a kind ofsuperpower when you can work withClaude Code to figure things out. Last stated 7 months ago 19 Mar 2026 KP Kris Puckett — holds since 2026-03-19 — tap for who they are Same subject: A coding agent does not learn from its mistakes the way a person does -- it repeats the same error indefinitely unless a human notices and writes it down. — tap to centre the map on it A coding agent does not learn fromits mistakes the way a person does-- it repeats the same errorindefinitely unless a human noticesand writes it down. Last stated 7 months ago 25 Mar 2026 MZ Mario Zechner — holds since 2026-03-25 — tap for who they are Same subject: A coding-agent company should not train its own model: it has to stay neutral ground for models to compete on. — tap to centre the map on it A coding-agent company should nottrain its own model: it has to stayneutral ground for models to competeon. Last stated 2 months ago 3 Sept 2026 DR Dax Raad — holds since 2026-09-03 — tap for who they are Same subject: A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach. — tap to centre the map on it A compiler that also serves an IDEhas to be lazy and deferredthroughout — a different way ofbuilding compilers from the one thetextbooks teach. Last stated 5 months ago 13 May 2026 AH Anders Hejlsberg — holds since 2026-05-13 — tap for who they are Same subject: A good tool raises the floor of what people can build without lowering the ceiling, and almost every tool quietly lowers the ceiling. — tap to centre the map on it A good tool raises the floor of whatpeople can build without loweringthe ceiling, and almost every toolquietly lowers the ceiling. Last stated a year ago 18 Sept 2025 TL Tobias Lütke — holds since 2025-09-18 — tap for who they are Same subject: A new API framework that ignores how existing apps were historically built undermines its own introduction — tap to centre the map on it A new API framework that ignores howexisting apps were historicallybuilt undermines its ownintroduction Last stated 2 months ago 31 Aug 2026 CH Craig Hockenberry — holds since 2026-08-31 — tap for who they are
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At the centre Development should never be driven by tests: how much to test is an engineering decision to be costed project by project, not a methodology to adopt by default. Last stated 26 Aug 2026 · 2 months ago Holds Casey Muratori Read this korrent →