---
title: "Python Type Safety - Air Market"
description: "You want Python to tell you about mismatched types before the program runs, or a checker is shouting at you and you are not sure how to satisfy it. This covers annotations, reusable generic code, int…"
canonical: "https://airmarket.ai/app/python-type-safety"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Python Type Safety

Skill by [Seth Hobson](/@wshobson)

# Python Type Safety

Catch the type mistake before you run the code

## What this does

You want Python to tell you about mismatched types before the program runs, or a checker is shouting at you and you are not sure how to satisfy it. This covers annotations, reusable generic code, interfaces defined by shape, and strict checker setup. Reach for it when adding annotations or turning checking on.

### Top 3 things it does for you

- Add type hints to existing code
- Write a generic class that holds up
- Get mypy or pyright configured strictly

## Information

**Python Type Safety at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Seth Hobson](/@wshobson) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 11 KB |
| Licence | MIT |
| Repository | [wshobson/agents](https://github.com/wshobson/agents/tree/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/python-development/skills/python-type-safety) |
| GitHub stars | 39,077 (as of Nov 2026) |
| Installs | 13,216, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Python Type Safety and recorded 0 findings and 2 flagged items. AIR's verdict: **safe**.

**What Python Type Safety's check was run against**

|  |  |
| --- | --- |
| Commit | be57c0b2e3c05c528ca6132b87410b385718775f |
| Content hash | d8a56a842e7e9a68507561d511fd1f339b644eb884caa1b1da13a0f97874bca0 |
| Files read | [Browse the files at this exact commit](https://github.com/wshobson/agents/blob/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/python-development/skills/python-type-safety/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Python Type Safety](/security/python-type-safety)

## About Python Type Safety

Annotations are only useful if something checks them, and strict checking is where the hard questions show up. This skill covers Python type safety: type hints, generics, protocols, and strict type checking.

Use it when adding annotations to code, writing generic classes, defining structural interfaces, or configuring mypy or pyright.

## What's inside

- SKILL.md - instructions
- references/details.md - reference

## Questions

### Is Python Type Safety safe to install?

AIR scanned this exact version of Python Type Safety and recorded 0 findings and 2 flagged items. AIR's verdict: safe. The verdict is named by the content that was read, at commit be57c0b2e3c0, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/python-type-safety.

### How do I install Python Type Safety?

Open https://airmarket.ai/app/python-type-safety on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/wshobson/agents/tree/be57c0b2e3c05c528ca6132b87410b385718775f/plugins/python-development/skills/python-type-safety. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by Seth Hobson](/@wshobson)

---

Canonical URL: <https://airmarket.ai/app/python-type-safety>