claude-code-system-prompts/system-prompts/tool-description-bash-sandbox-tmpdir.md
2026-02-24 20:56:48 -07:00

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For temporary files, always use the `$TMPDIR` environment variable (or `${SANDBOX_TMPDIR_FN()}` as a fallback). TMPDIR is automatically set to the correct sandbox-writable directory in sandbox mode. Do NOT use `/tmp` directly - use `$TMPDIR` or `${SANDBOX_TMPDIR_FN()}` instead.