python-standards

python-standards is a cursor rule for Cursor from jim-schilling/splurge-ai-rules. It costs 5 tokens per session (421 once invoked), scanned A, original, MIT.

A set of rules for writing Python code in a consistent modern style, including type annotations, imports, formatting, and validation tools.

In plain words
What is it for?
It guides Python implementation and review using current language conventions, mypy for type checking, and ruff for formatting and code checks.
Why use it?
It reduces inconsistent code and catches style, type, and security problems before they spread through a project.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It guides Python implementation and review using current language conventions, mypy for type checking, and ruff for formatting and code checks.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/jim-schilling/splurge-ai-rules/python-standards
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.

Clone the repo
git clone --depth 1 https://github.com/jim-schilling/splurge-ai-rules

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for python-standards

README.md
[![agentmods](https://agentmods.dev/badge/rules/jim-schilling/splurge-ai-rules/python-standards/github.svg)](https://agentmods.dev/rules/jim-schilling/splurge-ai-rules/python-standards)
Your own site
<a href="https://agentmods.dev/rules/jim-schilling/splurge-ai-rules/python-standards"><img src="https://agentmods.dev/badge/rules/jim-schilling/splurge-ai-rules/python-standards/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for python-standards

Your own site · 80×15
<a href="https://agentmods.dev/rules/jim-schilling/splurge-ai-rules/python-standards"><img src="https://agentmods.dev/badge/rules/jim-schilling/splurge-ai-rules/python-standards.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 421 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00005 $0.00421
Opus 5.5 $0.00002 $0.00168
Sonnet 5.5 $0.00001 $0.00084
Haiku 4.5 $0.00001 $0.00042

Measured 1mo ago against content hash c7a60995c70f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

python-standards 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 1mo ago.

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.

.cursor/rules/python-standards.mdc · 34 lines

What it actually says

  • Always add type annotations to function and method signatures.
  • Add type annotations to variables when it improves code clarity.
  • Prefer | instead of Optional or Union.
  • Code concise, technical, Python that adheres to PEP 8, PEP 604, and PEP 585.
  • Code to modern Python standards targeting version 3.10 or later.
  • Use absolute import paths, where appropriate.
  • When possible, place imports at top of module.
  • Group and sort imports: standard libraries, then third-party libraries, then local libraries. Sort alphabetically within each group.
  • Use separate statements for multiple context managers instead of nesting them.
  • Use mypy for type validation.
  • Use ruff for style, formatting, and security validation.
  • Place module-level constants in UPPER_SNAKE_CASE.
  • Place a single space before and after operators (=, +, -, *, /, ==, !=, <, >, <=, >=, etc.).
  • Place a single space after commas in lists, tuples, and function parameters.
  • Use 4 spaces for indentation, no tabs.
  • Use UTF-8 encoding without BOM for all text files.
  • Use f-strings for string interpolation.
  • Use triple double quotes for docstrings and comments.
  • Use single quotes for string literals, except when the string contains single quotes.
  • Add a DOMAINS list at the top of each module indicating associated domains (e.g., DOMAINS = ["generator", "helpers"]).
  • Add a package level constant domains listing all associated domains for the package in init.py.
  • Use exceptions for error handling, not return codes.
  • Use logging module for logging, not print statements.
  • Use pathlib for file and path operations.
  • Use context managers for file operations.
  • Use list comprehensions and generator expressions for creating lists and iterators.
  • Use enumerate() when needing both index and value in loops.
  • Use zip() to iterate over multiple iterables in parallel.
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. 1mo ago First seen · 34 lines · 5 tokens per session scan A c7a60995c70f

Subscribe to this mod's changes

python-standards is a cursor rule published in the GitHub repository jim-schilling/splurge-ai-rules (3 stars, last pushed 1y ago), licensed MIT. It adds 5 tokens to every session and 421 once invoked, about $0.0000 per session on Opus 5.5. 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.