python-code

A set of guidelines for writing and improving Python code, including formatting, modern language features, type hints, and error handling.

In plain words
What is it for?
Writing or refactoring Python applications such as Django, FastAPI, Flask, and data-processing code, while applying PEP 8 and Python typing practices.
Why use it?
It helps keep Python code consistent, readable, and easier for development tools to check.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dongduong2001/pudo-code-system/python
Any agent
npx skills add DongDuong2001/pudo-code-system --skill python
Clone the repo
git clone --depth 1 https://github.com/DongDuong2001/pudo-code-system

Made for: Claude Code, Codex.

Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 184 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00017 $0.00184
Opus 5 $0.00009 $0.00092
Sonnet 5 $0.00003 $0.00037
Haiku 4.5 $0.00002 $0.00018

Measured yesterday against content hash a76179f17733, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

python-code scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/code/python/SKILL.md · 20 lines

What it actually says

Python Code Skill

This skill is specialized for Python development, focusing on idiomatic Python (Pythonic code), performance, and typing.

When to use this skill

  • When writing or refactoring Python code (Django, FastAPI, Flask, Pandas, etc.).
  • When utilizing Python's specific features like list comprehensions, generators, context managers.
  • When integrating PEP 8 standards or type hints (mypy/pydantic).

Guidelines

  • Write "Pythonic" code. Use built-in functions and standard libraries where appropriate.
  • Use explicit type hints for better Developer Experience (DX) and tooling support.
  • Handle exceptions specifically rather than using bare except: clauses.
  • Use virtual environments (venv, poerty, conda) for dependency management.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 20 lines · 17 tokens per session scan A a76179f17733

Subscribe to this mod's changes

python-code is a skill published in the GitHub repository DongDuong2001/pudo-code-system (5 stars, last pushed 25d ago), licensed MIT. It adds 17 tokens to every session and 184 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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