Status: IN
The repo lacks any mechanism — shared imports, linters, templates, or conventions — for enforcing consistency in naming, testing, or structure across problem directories, making style drift an inevitable structural property rather than an oversight.
isolation removes the forcing function, duplication removes the single point of standardization, and dual-mode testing confirms that even simple conventions (where tests live) have drifted
Depends on (SL): isolation-enables-style-drift, test-colocation-dual-mode-inconsistent, duplication-over-shared-infrastructure