The discipline
Precision is measurable or it is marketing. Everything below is checked by machine, on every change, before anything merges.
Correctness is proven, not asserted.
Every change ships with the tests that prove it, in the same change. First-party coverage holds at 70 percent; below that the pipeline fails the build. Coverage counts lines and branches a test asserts on — code executed without being checked is not covered.
Tests go where failure lives.
Parsing, validation, error branches, boundaries, state transitions, concurrency. Accessors are not padded to lift a number.
A regression is a different event from a bug.
The first occurrence is fixed. The second stops feature work until the root cause is fixed, with a regression test that fails without the fix. A third is handed over with its full history rather than patched again.
Architecture is selected, not defaulted.
Onion, hexagonal, plugin, layered, or plain modules — whichever fits the problem. No interface for one implementation, no factory for a struct literal, no layer that only forwards. Real domain complexity gets real structure instead of being flattened into something that reads clean and hides the problem.
Documentation ships with the code.
A decision recorded a week later is a reconstruction. Documentation that has gone out of date is a defect and is fixed like one.
