python

Project rules for running Python and the skillsaw command-line tool through the project's own virtual environment, which keeps its required packages separate from the system installation.

In plain words
What is it for?
Use them when running the linter, Python scripts, tests, lint checks, formatting, or other Makefile commands in this project.
Why use it?
They prevent commands from using the wrong Python installation and failing because skillsaw or its dependencies are missing.

Cursor rule for Cursor

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 rules/stbenjam/skillsaw/python
Clone the repo
git clone --depth 1 https://github.com/stbenjam/skillsaw

Made for: Cursor.

Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 101 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 $0.00010 $0.00101
Opus 5 $0.00005 $0.00051
Sonnet 5 $0.00002 $0.00020
Haiku 4.5 $0.00001 $0.00010

Measured 2d ago against content hash 84e5983a3da5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

python 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 2d 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.mdc · 11 lines

What it actually says

This project uses a .venv virtualenv. Never invoke bare python or python3 — the system interpreter won't have skillsaw installed. Use:

  • .venv/bin/skillsaw to run the linter directly
  • .venv/bin/python3 when you need the project's interpreter
  • make targets when they exist (make test, make lint, make format)
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. 2d ago First seen · 11 lines · 10 tokens per session scan A 84e5983a3da5

Subscribe to this mod's changes

python is a cursor rule published in the GitHub repository stbenjam/skillsaw (59 stars, last pushed 2d ago), licensed Apache-2.0. It adds 10 tokens to every session and 101 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 2026-08-30.