Installation
npx skills add oakoss/agent-skills --skill python-uv 37
Installs
Python uv
Overview
uv is an extremely fast Python package and project manager written in Rust, designed to replace pip, pip-tools, pipx, poetry, pyenv, and virtualenv. It provides unified project management, dependency resolution, Python version management, and tool execution with 10-100x speed improvements over traditional tools.
Key capabilities: Project initialization, dependency locking and syncing, Python version management, PEP 723 inline script dependencies, ephemeral tool execution via uvx, monorepo workspaces with shared lockfiles, and package building/publishing.
When to use: Python project initialization, dependency management, virtual environments, Python version pinning, running scripts with inline dependencies, monorepo workspaces, tool execution, publishing packages.
When NOT to use: Non-Python projects, conda-managed scientific computing environments with system-level binary dependencies, projects locked to legacy setup.py-only workflows.
Quick Reference
| Pattern | Command / API | Key Points |
|---|---|---|
| Init project | uv init |
Creates pyproject.toml and .python-version |
| Init library | uv init --lib |
Creates src/ layout with py.typed |
| Init script | uv init --script example.py |
PEP 723 inline metadata script |
| Add dependency | uv add requests |
Adds to pyproject.toml, updates lockfile |
| Add dev dependency | uv add --dev pytest |
Adds to [dependency-groups] dev group |
| Add group dependency | uv add --group docs mkdocs |
Custom dependency groups |
| Add optional | uv add --optional postgres psycopg |
Optional extras for libraries |
| Remove dependency | uv remove requests |
Removes from pyproject.toml and lockfile |
| Lock dependencies | uv lock |
Creates/updates uv.lock |
| Upgrade in lockfile | uv lock --upgrade-package requests |
Targeted dependency upgrade |
| Sync environment | uv sync |
Installs locked dependencies into .venv |
| Sync for CI | uv sync --locked |
Fails if lockfile is stale |
| Sync frozen | uv sync --frozen |
Skips lockfile verification |
| Run command | uv run python app.py |
Runs in project virtual environment |
| Run script | uv run script.py |
Supports PEP 723 inline dependencies |
| Run in package | uv run --package api pytest |
Workspace-specific execution |
| Install Python | uv python install 3.13 |
Downloads and manages Python versions |
| Pin Python | uv python pin 3.12 |
Writes .python-version file |
| List Pythons | uv python list |
Shows available and installed versions |
| Run tool | uvx ruff check . |
Ephemeral tool execution |
| Tool with plugins | uvx --with mkdocs-material mkdocs |
Ephemeral tool with extra packages |
| Install tool | uv tool install ruff |
Persistent global tool install |
| Workspace | [tool.uv.workspace] |
Monorepo multi-package support |
| Build package | uv build |
Creates sdist and wheel in dist/ |
| Publish | uv publish |
Uploads to PyPI with trusted publishing |
| Export deps | uv export --format requirements-txt |
Generate requirements.txt from lockfile |
Common Mistakes
| Mistake | Correct Pattern |
|---|---|
Using pip install inside uv project |
uv add to manage via pyproject.toml |
Activating venv manually before uv run |
uv run handles venv activation automatically |
Committing .venv/ to version control |
Add .venv/ to .gitignore, commit uv.lock |
Not committing uv.lock |
Always commit uv.lock for reproducible builds |
Using uv sync without --locked in CI |
uv sync --locked ensures lockfile matches pyproject.toml |
Running uv lock --upgrade routinely |
Only upgrade intentionally, use --upgrade-package for targeted updates |
Mixing pip and uv dependency management |
Choose one tool for the project consistently |
Using uv pip install for project deps |
Use uv add/uv sync for managed projects |
Forgetting --frozen for Docker builds |
uv sync --frozen skips lockfile verification for faster builds |
| Creating venv manually in uv project | uv sync creates and manages .venv automatically |
Using setup.py for new projects |
Use pyproject.toml with a modern build backend |
Not using py.typed in libraries |
uv init --lib includes it, required for typed packages |
Delegation
- Project scaffolding: Use
Exploreagent - Dependency audit: Use
Taskagent - Code review: Delegate to
code-revieweragent
If the
dockerskill is available, delegate containerization patterns to it.
If thegithub-actionsskill is available, delegate CI/CD pipeline configuration to it.
If theapi-testingskill is available, delegate API testing patterns to it.
If thesentry-setup-loggingskill is available, delegate error monitoring setup to it.
If thepino-loggingskill is available, delegate Node.js logging patterns to it (Python equivalent covered here with structlog).
References
- Project management and pyproject.toml configuration
- Dependency management, lockfiles, and groups
- Python version management and virtual environments
- Scripts, inline dependencies, and tool management
- Workspace support for monorepos
- FastAPI web framework patterns
- Pydantic validation and data modeling
- Async patterns with asyncio
- Type checking with mypy and pyright
- Testing with pytest
- Logging with structlog
- CLI applications with typer
- Docker integration and publishing
Installs
Security Audit
View Source
oakoss/agent-skills
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How to use this skill
Install python-uv by running npx skills add oakoss/agent-skills --skill python-uv in your project directory. Run the install command above in your project directory. The skill file will be downloaded from GitHub and placed in your project.
No configuration needed. Your AI agent (Claude Code, Cursor, Windsurf, etc.) automatically detects installed skills and uses them as context when generating code.
The skill enhances your agent's understanding of python-uv, helping it follow established patterns, avoid common mistakes, and produce production-ready output.
What you get
Skills are plain-text instruction files — not executable code. They encode expert knowledge about frameworks, languages, or tools that your AI agent reads to improve its output. This means zero runtime overhead, no dependency conflicts, and full transparency: you can read and review every instruction before installing.
Compatibility
This skill works with any AI coding agent that supports the skills.sh format, including Claude Code (Anthropic), Cursor, Windsurf, Cline, Aider, and other tools that read project-level context files. Skills are framework-agnostic at the transport level — the content inside determines which language or framework it applies to.
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