Using uv for Python

When running Python code or managing Python dependencies, always use uv instead of pip or python directly.

uv should be installed - if it is not, ask the user to brew install uv or similar depending on their OS. Offer to do it on their behalf.

If you are running in sandbox mode, tell the user that you want to add the uv cache directory to the list of allowed paths, by adding the snippet below to the PROJECTDIR/.claude/settings.local.json file. Once this is done, uv will be able to read and write its cache even in sandbox mode.

{
  "permissions": {
    "allow": [
        "Read(~/.cache/uv)",
        "Edit(~/.cache/uv)",
        // other allowed paths...
    ],
  }
}