| name | uv |
| description | Checks whether the uv Python package manager is installed and installs it if missing. Ensures uv is on PATH. Use when another skill requires uv as a prerequisite. |
uv (Python Package Manager)
uv is a fast Python package manager used by Science Skills to run their Python
CLI scripts. Many skills depend on uv being installed and on
PATH.
Ensure uv is available before running any skill that depends on it.
Setup
-
Check if uv is already available: uv --version (or & uv --version in
PowerShell). If this succeeds, uv is ready — skip the remaining steps.
-
Check whether uv is installed at its default location but not on PATH:
- Unix/macOS:
"$HOME/.local/bin/uv" --version
- Windows (PowerShell):
& "$HOME\.local\bin\uv.exe" --version
If either succeeds, skip to step 4.
-
If uv is not installed do these steps in order:
(a) Tell the user that uv is a tool for creating a consistent and reliable
Python environment used for running the Science Skills, and that you
need to install it now.
(b) Install uv:
- **Unix/macOS**: `curl -LsSf https://astral.sh/uv/install.sh | sh`
- **Windows (PowerShell)**: `powershell -ExecutionPolicy ByPass -c
"irm https://astral.sh/uv/install.ps1 | iex"`
-
Add uv to PATH and verify (run as a single command):
- Unix/macOS:
export PATH="$HOME/.local/bin:$PATH" && uv --version
- Windows (PowerShell):
$env:PATH = "$HOME\.local\bin;" + $env:PATH; uv --version
After setup, bare uv commands should work without repeating the export.