--- title: "Modern Python: review, setup & limitations · Undominated.ai" canonical: https://undominated.ai/skills/trailofbits-modern-python/ description: "Sets up or modernizes Python projects with uv, Ruff, pytest and explicit migration checks." --- # Modern Python: review, setup & limitations · Undominated.ai > Sets up or modernizes Python projects with uv, Ruff, pytest and explicit migration checks. [← Explore all skills](/skills/) DEVELOPMENT WORKFLOW / Trail of Bits # Modern Python Sets up or modernizes Python projects with uv, Ruff, pytest and explicit migration checks. [See setup guidance ↓](#setup)[Original source ↗](https://github.com/trailofbits/skills/tree/82fe8226252622fa807643bdca1710901198553a/plugins/modern-python/skills/modern-python) SOURCE REVIEW Reviewed 2026-10-07 Evidence 3 linked sources Publisher Trail of Bits Licence [CC-BY-SA-4.0 ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/LICENSE) Revision 82fe82262526 [Read what was—and wasn’t—checked ↓](#review) “Configures Python projects with modern tooling (uv, ruff, ty). Use when creating projects, writing standalone scripts, or migrating from pip/Poetry/mypy/black.” [Trail of Bits · upstream description ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/plugins/modern-python/skills/modern-python/SKILL.md) Our analysis follows below. 01 / THE REASONING ## Why this made the selection. - Separates new-project setup from requested migration and documents when legacy Python requirements are outside its preferred path. - Covers environment, dependency, lint, test and packaging configuration together, with supporting migration references. ### A good fit for - Starting a Python project on uv and ruff - Reviewing a requested migration off Poetry or mypy ### Weigh up before choosing - Tool substitutions and coverage thresholds are recommendations, not equivalence proofs. Preserve old lockfiles and environments until the actual project passes its checks. - Reviewed definition and licence are pinned; installation and real-task outcomes for this resource were not tested. 02 / THE REVIEW RECORD ## What we actually inspected. Source review has boundaries. A clear record is more useful than a “safe” badge. ### Material inspected - plugins/modern-python/skills/modern-python/SKILL.md (complete frontmatter and body) - https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/LICENSE (applicable licence text) - README.md (complete marketplace installation guidance) ### Our findings - Separates new-project setup from requested migration and documents when legacy Python requirements are outside its preferred path. - Covers environment, dependency, lint, test and packaging configuration together, with supporting migration references. - Writes configuration, installs dependencies, runs project tests and may remove replaced environment/configuration files during an approved migration. ### Not established by this review - Host discovery, task execution and model quality were not tested. - Referenced helpers, sibling plugins and external service operations were not exhaustively audited or executed. The review applies to the material and revision named here. A newer upstream release can change its behavior. 03 / PUT IT TO WORK ## Add a skill to your workflow. [Upstream setup instructions ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/README.md) DOCUMENTED COMMAND /plugin marketplace add trailofbits/skills Copy command ↗ Copying does not execute this command. It may retrieve a newer version than the reviewed source. - In Claude Code, add the upstream marketplace, then use /plugin menu to select the modern-python plugin. Adding a marketplace alone does not install a plugin. - The marketplace command follows upstream HEAD. To reproduce this review, obtain revision 82fe8226252622fa807643bdca1710901198553a and configure the complete checked-out plugin through the host’s local-plugin workflow. - Keep the whole plugin, including its references, scripts and named agents; inspect its tool access before an authorized task. ### Before you start - Python 3.11 or newer for the preferred workflow; uv and the selected development tools. ### Compatibility Claude Code plugin workflow · Other hosts require compatible plugin/tool support ### Host-mediated code, files and tools - Writes configuration, installs dependencies, runs project tests and may remove replaced environment/configuration files during an approved migration. - The host enforces permissions; installing instructions does not itself create a sandbox. ### Cost model Source is available under the stated licence. Model usage, compute and connected services can incur charges. 04 / FOLLOW THE EVIDENCE ## The source trail. Our notes are separate from the original resource. Check upstream before adopting a new version. - [Skill definition ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/plugins/modern-python/skills/modern-python/SKILL.md) Checked 2026-10-07 https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/plugins/modern-python/skills/modern-python/SKILL.md Supports: summary, whySelected, limitations, access, review - [Repository licence ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/LICENSE) Checked 2026-10-07 https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/LICENSE Supports: Redistribution terms - [Install instructions ↗](https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/README.md) Checked 2026-10-07 https://github.com/trailofbits/skills/blob/82fe8226252622fa807643bdca1710901198553a/README.md Supports: Documented install command KEEP COMPARING ## Other approaches to consider. Related by category or shared topics. These are alternatives to inspect, not a measured quality order. [### Gradio App Builder ↗ A Gradio reference and example collection for building Python interfaces, event-driven layouts and chat demos.](/skills/huggingface-huggingface-gradio/)[### API and Interface Design ↗ Designs stable API contracts, consistent errors and retry-safe idempotency behavior.](/skills/addyosmani-api-and-interface-design/)[### Constraint-driven development ↗ Records project quality constraints with measured baselines, enforcement commands and reviewable exceptions.](/skills/addyosmani-constraint-driven-development/) [AI Tools ↗](/tools/)[Skills ↗](/skills/)[Agents ↗](/agents/)[MCP Servers ↗](/mcp-servers/)[Workflows ↗](/workflows/) ## Continue your investigation - [Choose a toolkit](/tools/) - [Inspect execution hosts](/agents/) - [Check tool access](/mcp-servers/) - [Check project dependencies](/check-repo/)