Shell tools (`exec_shell`, `task_shell_start`, …) only register when
`allow_shell` is true, but `allow_shell` and `sandbox_mode` are top-level
keys. Placing them under a `[general]` or `[sandbox]` table — neither of
which CodeWhale defines — makes TOML silently drop them, so `allow_shell`
stays false and the tools vanish from the catalog with no explanation.
Following the existing `warn_on_misplaced_root_base_url` precedent, emit a
startup warning naming the misplaced keys and telling the user to move them
to the top of the file. With the keys correctly placed, shell tools register
on Windows too (no sandbox required for danger-full-access).
https://claude.ai/code/session_01MQrnh6wHfrEYN5BBdMarC1
Claude
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