uv-package-manager
Master the uv package manager for fast Python dependency management, virtual environments, and modern Python project workflows. Use when setting up Python projects, managing dependencies, or optimizing Python development workflows with uv.
67
58%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/python-development/skills/uv-package-manager/SKILL.mdQuality
Discovery
67%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description is functional and covers both what and when, earning full marks on completeness. However, it stays at a category level rather than listing concrete actions (like 'install packages', 'resolve dependencies', 'create lockfiles'), and its trigger terms could be more comprehensive to include common uv-specific commands and alternative tool names users might reference. The distinctiveness could be improved by more clearly delineating uv from other Python package managers.
Suggestions
Add specific concrete actions like 'install packages, resolve dependencies, create lockfiles, manage Python versions, run scripts' to improve specificity.
Include more natural trigger terms and variations such as 'pip replacement', 'pyproject.toml', 'uv sync', 'uv run', 'uv pip install', '.venv' to improve keyword coverage and distinctiveness from other Python package manager skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (uv package manager, Python) and mentions some actions ('dependency management, virtual environments, project workflows'), but these are more category-level than concrete specific actions. It doesn't list specific operations like 'install packages', 'create virtual environments', 'lock dependencies', 'publish packages'. | 2 / 3 |
Completeness | Clearly answers both 'what' (fast Python dependency management, virtual environments, modern Python project workflows with uv) and 'when' (explicit 'Use when setting up Python projects, managing dependencies, or optimizing Python development workflows with uv'). | 3 / 3 |
Trigger Term Quality | Includes relevant keywords like 'uv', 'Python', 'dependencies', 'virtual environments', and 'package manager', which users might naturally say. However, it misses common variations like 'pip replacement', 'uv.lock', 'pyproject.toml', 'uv pip install', 'uv sync', 'uv run', or '.venv'. | 2 / 3 |
Distinctiveness Conflict Risk | The mention of 'uv' specifically helps distinguish it, but phrases like 'Python dependency management' and 'virtual environments' could overlap with skills for pip, poetry, conda, or general Python environment management. The description doesn't strongly enough differentiate uv-specific use cases from general Python tooling. | 2 / 3 |
Total | 9 / 12 Passed |
Implementation
50%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The skill is highly actionable with excellent concrete examples and commands, but is significantly bloated with explanatory content Claude doesn't need (feature lists, tool comparisons, marketing-style descriptions). The workflow structure is adequate but lacks validation checkpoints and end-to-end sequencing. The content would benefit greatly from aggressive trimming of the introductory/conceptual sections and better splitting of reference material into separate files.
Suggestions
Remove the 'Core Concepts' section entirely (What is uv, Key Features, UV vs Traditional Tools)—Claude already knows this. Start directly with Quick Start.
Remove or drastically trim the 'When to Use This Skill' section; a single sentence would suffice.
Move the detailed installation methods, Python version management, and full pyproject.toml example into the referenced advanced-patterns.md file, keeping only the most common path inline.
Add a cohesive end-to-end workflow (e.g., 'New Project Setup') with explicit validation steps like verifying uv.lock was created, checking `uv sync` succeeded, and running a smoke test.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Extremely verbose. The 'Core Concepts' section explains what uv is, its features, and comparisons to other tools—all things Claude already knows. Sections like 'When to Use This Skill' with 10 bullet points, 'Key Features' listing marketing-style points ('Blazing fast installation speeds'), and the 'What is uv?' breakdown are unnecessary padding. The content could be cut by 50%+ without losing actionable value. | 1 / 3 |
Actionability | The skill provides fully executable, copy-paste ready bash commands and configuration examples throughout. Every pattern includes concrete commands with real package names and flags, and the pyproject.toml example is complete and usable. | 3 / 3 |
Workflow Clarity | Steps are listed clearly for individual operations (create project, add deps, lock, etc.), but there's no cohesive end-to-end workflow with validation checkpoints. For example, the lock/sync workflow doesn't include verification steps or error recovery guidance. The patterns are presented as isolated commands rather than sequenced workflows. | 2 / 3 |
Progressive Disclosure | There is a reference to 'references/advanced-patterns.md' at the end, which is good. However, the main file itself is a monolithic wall of content (~250 lines) with much that could be split out (installation methods, Python version management, full pyproject.toml examples). The overview-level content is buried under extensive inline detail. | 2 / 3 |
Total | 8 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- wshobson/agents
- Commit
27a7ed9
- Reviewed
Table of Contents
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