MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Use uv instead of pip/python/venv. An agent skill from mitsuhiko/agent-stuff.
Apache-2.0Auto-check passed
Install Uv
$ npx skills add mitsuhiko/agent-stuff --skill uv -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mitsuhiko/agent-stuff uv --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/uv .claude/skills/uv && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .claude/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uvType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mitsuhiko/agent-stuff --skill uv -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mitsuhiko/agent-stuff uv --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/uv .agents/skills/uv && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .agents/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mitsuhiko/agent-stuff --skill uv -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mitsuhiko/agent-stuff uv --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/uv .cursor/skills/uv && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .cursor/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mitsuhiko/agent-stuff.git --path skills/uv--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mitsuhiko/agent-stuff --skill uv -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mitsuhiko/agent-stuff uv --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/uv .gemini/skills/uv && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .gemini/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mitsuhiko/agent-stuff uvInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mitsuhiko/agent-stuff --skill uv -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/uv .github/skills/uv && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .github/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mitsuhiko/agent-stuff --skill uv -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mitsuhiko/agent-stuff uv --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mitsuhiko/agent-stuff.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/uv .opencode/skills/uv && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "uv" agent skill from https://github.com/mitsuhiko/agent-stuff/tree/main/skills/uv into .opencode/skills/uv/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "uv", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
uv- GitHub stars
- 3.2k
- Token cost
- ~251 tokens
- SKILL.md length
- 33 words
- Files
- 3
- Skills in repo
- 16
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Use uv instead of pip/python/venv. An agent skill from mitsuhiko/agent-stuff.
- SKILL.md covers Quick Reference, Inline Script Dependencies and Build Backend
- Calls uv
What it does
Uv is an agent skill from mitsuhiko/agent-stuff. Use uv instead of pip/python/venv. Run scripts with uv run script.py, add deps with uv add, use inline script metadata for standalone scripts.
Its SKILL.md is about 250 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `build.md` and `scripts.md`).
It works with Python. The repository describes itself as: These are commands I use with agents, mostly Claude. The licence is Apache-2.0.
Example prompts
- “/uv”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 0865c84. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
uv
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Uv loads about 251 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 33 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from mitsuhiko/agent-stuff at commit 0865c84, republished under its Apache-2.0 licence (© mitsuhiko). 33 words, ~251 tokens.
Download SKILL.mdSave it as
.claude/skills/uv/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- uv
- description
- Use `uv` instead of pip/python/venv. Run scripts with `uv run script.py`, add deps with `uv add`, use inline script metadata for standalone scripts.
Quick Reference
uv run script.py # Run a script
uv run --with requests script.py # Run with ad-hoc dependency
uv run python -m ast foo.py >/dev/null # Verify syntax without writing __pycache__
uv add requests # Add dependency to project
uv init --script foo.py # Create script with inline metadataInline Script Dependencies
# /// script
# requires-python = ">=3.12"
# dependencies = ["requests"]
# ///See scripts.md for full details on running scripts, locking, and reproducibility.
Build Backend
Use uv_build for pure Python packages:
[build-system]
requires = ["uv_build>=0.9.28,<0.10.0"]
build-backend = "uv_build"See build.md for project structure, namespaces, and file inclusion.
© mitsuhiko, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files in skills/uv of mitsuhiko/agent-stuff.
- SKILL.md
- build.md
- scripts.md
Open the folder on GitHubat commit 0865c84
Compare with similar skills
Uv next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Uv this skillmitsuhiko/agent-stuff | 3.2k | — | ~251 | Automated safety check: Pass | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 64 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| PDF Processinganthropics/skills | 180k | 48 repos | ~2k | Automated safety check: Pass | Proprietary | |
| NotebookLM Research AssistantPleasePrompto/notebooklm-skill | 7.8k | 14 repos | ~2.4k | Automated safety check: Notes | MIT | |
| Manim Video Productionbrowser-use/video-use | 28k | 6 repos | ~3k | Automated safety check: Pass | MIT | |
| Code Review ChecklistshareAI-lab/learn-claude-code | 78k | 5 repos | ~1.1k | Automated safety check: Pass | MIT |
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- Official
- Official
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Code Review Checklist
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Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
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Related
Works with
Questions about Uv
What does Uv do?
Use uv instead of pip/python/venv. An agent skill from mitsuhiko/agent-stuff. Uv is an agent skill from mitsuhiko/agent-stuff. Use uv instead of pip/python/venv.
How do I install Uv in Claude Code?
Run `npx skills add mitsuhiko/agent-stuff --skill uv -a claude-code`. Or copy the skill folder (skills/uv in mitsuhiko/agent-stuff) into .claude/skills/uv in your project. Claude Code loads it when a task matches its description.
How do I install Uv in Codex?
Run `npx skills add mitsuhiko/agent-stuff --skill uv -a codex`. Or copy the skill folder (skills/uv in mitsuhiko/agent-stuff) into .agents/skills/uv in your project. Codex loads it when a task matches its description.
Can I use Uv in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mitsuhiko/agent-stuff --skill uv -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/uv, .gemini/skills/uv, .github/skills/uv and .opencode/skills/uv in your project.
What does Uv need to run?
Going by SKILL.md and its folder, Uv needs the command-line tools its instructions call (uv). Our summary lists: Python 3.
Does Uv access the network?
SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Uv safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Uv use?
Uv is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Uv use?
About 251 tokens (SKILL.md is roughly 1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Uv?
Skills that share tags, products or a category with Uv: MCP Server Builder (anthropics/skills, 180k stars), PDF Processing (anthropics/skills, 180k stars), NotebookLM Research Assistant (PleasePrompto/notebooklm-skill, 7.8k stars) and Manim Video Production (browser-use/video-use, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Uv?
mitsuhiko (a GitHub user) maintains it in mitsuhiko/agent-stuff, which has 3,177 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on September 27, 2026.
Source: mitsuhiko/agent-stuff on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.