task solution

[pupsao]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Your solution is approved because it correctly implements the required mv-like behavior: renaming files, moving them into existing directories (with and without trailing slashes), and distinguishing between an existing directory and a new filename, all using fs.rename as expected. You also correctly treat paths ending with / or path.sep as directories and throw a clear error when the destination directory does not exist, which aligns with the core task requirements. The check that rejects flags and focuses only on plain path arguments matches the constraint that no options should be supported. The extra validation on the number of arguments is a bit stricter than a typical CLI and might differ from how some tools show usage information, but it does not break the core functionality described in the task. As a minor improvement, you could consider refining error messages to be a bit more specific for different failure modes, which would make debugging easier. Overall, you met the functional checklist and your code structure and logic are solid, so you can move forward with this implementation.

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