Long refactoring session, one conversation, big monorepo. First hour is excellent. Somewhere around the point where the context indicator says 60 70k it starts: reintroducing a bug we fixed 40 minutes earlier referring…
Asked it to fix an off by one in a pagination helper. It fixed the off by one. It also renamed four variables, extracted two functions, turned a for loop into a reduce, added JSDoc to everything, and changed the error…
Team of four, we merge roughly 15 PRs a week and maybe 70% of the code in them is model written. Test suite is decent — 1,100 tests, about 6 minutes in CI, covers the money paths well. Two camps internally. One says…
Inherited a service with no tests. Asked for coverage, got 40 Vitest files, 380 tests, all green, 84% coverage. Felt great for about a day. Then I deliberately broke a validation rule — changed a to a in the middle of…
60k lines of TypeScript, five years old, and we want to move from a hand rolled DI container to plain constructor injection. Touches roughly 180 files. Nothing about it is hard, it's just enormous and boring — exactly…
Been using an agent in the editor for about four weeks. Asked it to add a field to a form and wire it to the API. It read 14 files, ran the test suite twice, grepped for four different things and made six edits —…