ecoconception-python

A set of guidelines for writing Python code with lower resource use. It covers approaches such as efficient database access, generators, vectorized operations, and limited-size caches.

In plain words
What is it for?
Use it when reviewing or writing Python code, especially code that reads data through an ORM, processes collections, or stores cached results.
Why use it?
It helps developers consider energy and resource consumption while designing Python programs and database-backed code.

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/institut-du-numerique-responsable/skill-nr/ecoconception-python
Clone the repo
git clone --depth 1 https://github.com/Institut-du-Numerique-Responsable/skill-nr

Made for: Cursor.

Per session 597 This file is loaded in full into every session.
When invoked 597 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00597 $0.00597
Opus 5 $0.00298 $0.00298
Sonnet 5 $0.00119 $0.00119
Haiku 4.5 $0.00060 $0.00060

Measured 2d ago against content hash 84a7e21eebd8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ecoconception-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.

versions/cursor/.cursor/rules/ecoconception-python.mdc · 38 lines

The source is not reproduced here

Licensed CC-BY-SA-4.0

The repository is licensed CC-BY-SA-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 38 lines · 597 tokens per session scan A 84a7e21eebd8

Subscribe to this mod's changes

ecoconception-python is a cursor rule published in the GitHub repository Institut-du-Numerique-Responsable/skill-nr (3 stars, last pushed 4d ago), licensed CC-BY-SA-4.0. It adds 597 tokens to every session, about $0.0030 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.