Comprehensive guide to using uv, an extremely fast Python package installer and resolver written in Rust, for modern Python project management and dependency workflows.
SkillScore91Maintained
Automatic
◆Coding pack
Last verified 8/12/2026
What it changes
Passed 20 of 22 test cases with the skill, and 18 of 22 without it.
Without skill82%
With skill91%
Checks it passed that the model alone missed
Specifies the command uv tree.
Specifies the command uv run python main.py.
2 fixed18 passed either way2 still failing0 broke
Pass-rate lift
+9 pp
Tokens
-1%
Agent turns
0%
Response time
-26%
Model gemini-3.6-flashMeasured 8/12/2026v120 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 2
Prompt
Which subcommand visualizes the complete dependency tree showing transitive dependencies for the current workspace?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies the command uv tree.
Missed
Passed
case-19 · gemini-3.6-flash · 8/12/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md37 linessingle file
UV Package Manager
Comprehensive guide to using uv, an extremely fast Python package installer and resolver written in Rust, for modern Python project management and dependency workflows.
Use this skill when
Setting up new Python projects quickly
Managing Python dependencies faster than pip
Creating and managing virtual environments
Installing Python interpreters
Resolving dependency conflicts efficiently
Migrating from pip/pip-tools/poetry
Speeding up CI/CD pipelines
Managing monorepo Python projects
Working with lockfiles for reproducible builds
Optimizing Docker builds with Python dependencies
Do not use this skill when
The task is unrelated to uv package manager
You need a different domain or tool outside this scope
Instructions
Clarify goals, constraints, and required inputs.
Apply relevant best practices and validate outcomes.
Provide actionable steps and verification.
If detailed examples are required, open resources/implementation-playbook.md.
Resources
resources/implementation-playbook.md for detailed patterns and examples.
Limitations
Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.