python-type-safety SKILL.md skillA
python-type-safety from jartan-llc/grimoire is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jartan-llc/grimoire/python-type-safety@git:20260731.f6add68Pins git:20260731.f6add68 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jartan-llc/grimoire
- Path
plugins/pythonica/skills/python-type-safety/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260731.f6add68, committed Jul 31, 2026
- First version recorded
- Jun 18, 2026
- Size
- 5,507 bytes
- Repository stars
- 3
- License
- MIT
Python type safety with type hints, generics, protocols, and strict type checking.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Python Type Safety
Leverage Python's type system to catch errors at static analysis time. Type annotations serve as enforced documentation that tooling validates automatically.
## Core Concepts
### 1. Type Annotations
Declare expected types for function parameters, return values, and variables.
### 2. Generics
Write reusable code that preserves type information across different types.
### 3. Protocols
Define structural interfaces without inheritance (duck typing with type safety).
### 4. Type Narrowing
Use guards and conditionals to narrow types within code blocks.
## Quick Start
```python
def get_user(user_id: str) -> User | None:
"""Return type makes 'might not exist' explicit."""
...
# Type checker enforces handling None case
user = get_user("123")
if user is None:
raise UserNotFoundError("123")
print(user.name) # Type checker knows user is User here
```
## Fundamental Patterns
### Pattern 1: Annotate All Public Signatures
Every public function, method, and class should have type annotations.
```python
def get_user(user_id: str) -> User:
"""Retrieve user by ID."""
...
def process_batch(
items: list[Item],
max_workers: int = 4,
…Read the whole file at its exact version.
How to install
mdr add jartan-llc/grimoire/python-type-safety@sha256:91b403f3d045d011The line at the top of this page pins the label git:20260731.f6add68, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mhdmu26hercrdy3t)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 18, 2026 and Jul 31, 2026, about one every 43 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260731.f6add68 latest | 2026-07-31 | f6add68 | 5,507 B | A | view · diff |
| git:20260618.9d9291d | 2026-06-18 | 9d9291d | 5,485 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5507 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jartan-llc/grimoire · 3 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mhdmu26hercrdy3t GET https://markdownregistry.com/api/v1/resolve?ref=jartan-llc/grimoire/python-type-safety GET https://markdownregistry.com/api/v1/blob/91b403f3d045d0118be61c2e5da34b92e86fa37eceb93f77d67b8e0e0883c4cb
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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