uv

uv is a skill for Claude Code, Codex from google-deepmind/science-skills. It costs 34 tokens per session (449 once invoked), scanned C, original, Apache-2.0.

A setup helper for uv, a Python tool that creates environments and runs Python packages and scripts. It checks whether uv is installed and installs it when it is missing.

In plain words
What is it for?
Use it before science-related skills that depend on uv, or whenever a project needs uv available on the command line.
Why use it?
It removes a manual prerequisite for skills that use Python command-line programs. This helps those skills run with a consistent Python setup.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

About the project

Science Skills is a collection of add-ons that give AI agents structured instructions, scripts, and references for scientific research, including genomics, structural biology, cheminformatics, and literature search. Researchers use it to guide agents through specialized scientific tasks with information from databases and tools such as AlphaGenome, AFDB, and UniProt. The catalogue entries are individual skills from this collection.

google-deepmind/science-skills · 2,845 stars · on GitHub · antigravity.google

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/google-deepmind/science-skills/uv
Any agent
npx skills add google-deepmind/science-skills --skill uv
Clone the repo
git clone --depth 1 https://github.com/google-deepmind/science-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for uv

README.md
[![agentmods](https://agentmods.dev/badge/skills/google-deepmind/science-skills/uv.svg)](https://agentmods.dev/skills/google-deepmind/science-skills/uv)
Your own site
<a href="https://agentmods.dev/skills/google-deepmind/science-skills/uv"><img src="https://agentmods.dev/badge/skills/google-deepmind/science-skills/uv.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 449 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.00449
Opus 5 $0.00017 $0.00225
Sonnet 5 $0.00007 $0.00090
Haiku 4.5 $0.00003 $0.00045

Measured 6d ago against content hash d01562f2dcc1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

uv scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- **Unix/macOS**: `curl -LsSf https://astral.sh/uv/install.sh | sh`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Unix/macOS**: `curl -LsSf https://astral.sh/uv/install.sh | sh`
skills/uv/SKILL.md · 50 lines

What it actually says

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

  1. Check if uv is already available: uv --version (or & uv --version in PowerShell). If this succeeds, uv is ready — skip the remaining steps.

  2. 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.

  3. 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"`
    
  4. 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.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 50 lines · 34 tokens per session scan C d01562f2dcc1

Subscribe to this mod's changes

uv is a skill published in the GitHub repository google-deepmind/science-skills (2,845 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 449 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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