ctrl-c-v-tdd

Test-pattern doctrine. Tests are copyable from ~/.claude/patterns/tests/, three categories: input boundary, contract, effect. Make sure to consult this skill whenever code changes touch a boundary where someone else's code meets yours, even if the user doesn't say "test" or "TDD" — Claude tends to ship untested boundary code, and this skill prevents the Sat…

Independent GitHub snapshot · Automated classification · Original documentation governs