writing-python SKILL.md skillA
writing-python from aleksandarbisevac/claude-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aleksandarbisevac/claude-plugins/writing-python@git:20261029.8e46457Pins git:20261029.8e46457 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aleksandarbisevac/claude-plugins
- Path
.claude/skills/writing-python/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261029.8e46457, committed Oct 29, 2026
- First version recorded
- Aug 16, 2026
- Size
- 8,836 bytes
- Repository stars
- 4
- License
- MIT
How Python is written in this repo — free functions over classes, structured returns instead of mutated arguments, comprehensions, no module state, and the stdlib-only, annotation-free, Python 3.8 dialect the AST lints enforce. Covers modular structure and the import-layer rule, DRY without copying a helper into a second file, what makes a function testable from a `--selftest`, readability rules (guard clauses, named predicates, why-not-what docstrings), and the anti-patterns that have…
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
# Writing Python here Not a general Python style guide. This repo bans things most guides mandate, and the bans are read out of the AST rather than trusted — `_output_lints.house_style_violations()` fails the build, it does not warn. Everything below is either enforced or measured from the tree as it stands. ## The dialect, in one paragraph Stdlib only. Python 3.8 floor. **No `typing`, no `dataclasses`, no annotations, no walrus, no `from __future__`** — banned by AST, because hooks start on every tool call and the import and parse cost is real. `%`-style formatting; there is not one f-string in the tree. Reach for `os.path`, `json`, `re`, `subprocess` — not for a dependency. 3.8 also rules out things that read as ordinary today: no `X | Y` unions, no `match`, no `dict1 | dict2` merge, no `list[str]`. `vermin -t=3.8-` catches these; it will not catch the banned imports, which is why the AST lint exists alongside it. ## Free functions, structured returns The measured shape of this codebase is **top-level functions by the hundred against a handful of classes**, comprehensions everywhere, and **`global` statements you can count on one …
Read the whole file at its exact version.
How to install
mdr add aleksandarbisevac/claude-plugins/writing-python@sha256:05bd8d4049e2b7b9The line at the top of this page pins the label git:20261029.8e46457, 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_ez5i2g4paq5sbmif)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Aug 16, 2026 and Oct 29, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261029.8e46457 latest | 2026-10-29 | 8e46457 | 8,836 B | A | view · diff |
| git:20261021.c403486 | 2026-10-21 | c403486 | 8,823 B | A | view · diff |
| git:20261019.1b5a047 | 2026-10-19 | 1b5a047 | 8,796 B | A | view · diff |
| git:20260823.0c7a50c | 2026-08-23 | 0c7a50c | 8,795 B | A | view · diff |
| git:20260817.10ae17f | 2026-08-17 | 10ae17f | 8,474 B | A | view · diff |
| git:20260817.83487ac | 2026-08-17 | 83487ac | 7,928 B | A | view · diff |
| git:20260816.dd21600 | 2026-08-16 | dd21600 | 7,693 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 (8836 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
aleksandarbisevac/claude-plugins · 4 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ez5i2g4paq5sbmif GET https://markdownregistry.com/api/v1/resolve?ref=aleksandarbisevac/claude-plugins/writing-python GET https://markdownregistry.com/api/v1/blob/05bd8d4049e2b7b949e70968b8ef757ed8b8b062fca7dcafb32b2a48d0604e89
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.
More from aleksandarbisevac/claude-plugins
Every file in aleksandarbisevac/claude-plugins