python-project SKILL.md skillB
python-project from majiayu000/spellbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add majiayu000/spellbook/python-project@git:20260523.d39dd11Pins git:20260523.d39dd11 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- majiayu000/spellbook
- Path
skills/python-project/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260523.d39dd11, committed May 23, 2026
- First version recorded
- Dec 17, 2025
- Size
- 10,938 bytes
- Repository stars
- 290
- License
- MIT
Modern Python project architecture guide for 2025. Use when creating Python projects (APIs, CLI, data pipelines). Covers uv, Ruff, Pydantic, FastAPI, and async patterns.
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 Project Architecture
## Core Principles
- **Type hints everywhere** — Pydantic for runtime, mypy for static
- **uv for everything** — Package management, virtualenv, Python version
- **Ruff only** — Replace Flake8 + Black + isort with single tool
- **src layout** — All code under `src/` directory
- **pyproject.toml only** — No setup.py, no requirements.txt
- **Async all the way** — Once async, stay async through call chain
- **No backwards compatibility** — Delete, don't deprecate. Change directly
- **LiteLLM for LLM APIs** — Use LiteLLM proxy for all LLM integrations
---
## No Backwards Compatibility
> **Delete unused code. Change directly. No compatibility layers.**
```python
# ❌ BAD: Deprecated decorator kept around
import warnings
def old_function():
warnings.warn("Use new_function instead", DeprecationWarning)
return new_function()
# ❌ BAD: Alias for renamed functions
new_name = old_name # "for backwards compatibility"
# ❌ BAD: Unused parameters with underscore
def process(_legacy_param, data):
...
# ❌ BAD: Version checking for old behavior
if version < "2.0":
# old behavior
...
# ✅ GOOD: Just delete and update all usages
…Read the whole file at its exact version.
How to install
mdr add majiayu000/spellbook/python-project@sha256:9caec9140d7ce6a9The line at the top of this page pins the label git:20260523.d39dd11, 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_cwozff52evhrnkou)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Dec 17, 2025 and May 23, 2026, about one every 157 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260523.d39dd11 latest | 2026-05-23 | d39dd11 | 10,938 B | B | view · diff |
| git:20251217.3685d49 | 2025-12-17 | 3685d49 | 13,054 B | B | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -LsSf https://astral.sh/uv/install.sh | sh)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10938 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
majiayu000/spellbook · 290 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cwozff52evhrnkou GET https://markdownregistry.com/api/v1/resolve?ref=majiayu000/spellbook/python-project GET https://markdownregistry.com/api/v1/blob/9caec9140d7ce6a9ed22a39105b589efd0ef7ea62e5198b35c9daeb116d45bc1
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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