DeepTutor 1.6.5 gives the agent a user-chosen folder and makes moving a file out of outputs/ an explicit approval step

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Released 2026-09-06 by HKUDS, v1.6.5 lets you point DeepTutor at any directory that becomes the session working directory; the assistant can list, read and search it without uploading, generated files land in `outputs/`, and moving anything out of `outputs/` into the rest of the folder requires user approval. It also collapses `code_execution` and `exec` into one `exec` tool covering Python, C, C++ and shell, where every call in a turn shares one working directory and dependency environment so a later call can revise an earlier call's file. Mastery Path now gates tools by mode so only `outline` can change the study plan and no exam starts before an outline is agreed.