openmarkets python-calisthenics.instructions.md

A set of Python coding rules based on Object Calisthenics, a style guide that encourages small, focused objects and simple code.

In plain words
What is it for?
Use it when writing or reviewing Python code for business rules and domain models.
Why use it?
It helps keep business logic easier to read, change, and test by applying the same code-structure rules consistently.

Instructions file for GitHub Copilot

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 instructions/danchev/openmarkets/python-calisthenics
Clone the repo
git clone --depth 1 https://github.com/danchev/openmarkets

Made for: GitHub Copilot.

Per session 1,710 This file is loaded in full into every session.
When invoked 1,710 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 $0.01710 $0.01710
Opus 5 $0.00855 $0.00855
Sonnet 5 $0.00342 $0.00342
Haiku 4.5 $0.00171 $0.00171

Measured yesterday against content hash e8d8476164bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openmarkets python-calisthenics.instructions.md 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.

.github/instructions/python-calisthenics.instructions.md · 285 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, 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. yesterday First seen · 285 lines · 1,710 tokens per session scan A e8d8476164bc

Subscribe to this mod's changes

openmarkets python-calisthenics.instructions.md is an instructions file published in the GitHub repository danchev/openmarkets (3 stars, last pushed 24d ago), licensed AGPL-3.0. It adds 1,710 tokens to every session, about $0.0086 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.