Never invent unique identifiers, UUIDs, GUIDs, and similar concepts, but instead always use the intended way to correctly generate them.
Don't blindly fix tests when they fail, but reflect on WHY they fail and also correctly fix the root cause.
Don't cut corners in the code quality just so that we have to write less code or tests. Coding is cheap; bad quality is expensive.
Don't add comments to the code, except if really required to explain code that could be disambiguated or interpreted incorrectly. The code should be self-documenting.
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