clean_code_ruby

A set of Rails clean-code rules covering time zones, error handling, Active Record boundaries, and naming. Rails is a Ruby web framework, and Active Record is its database-access layer.

In plain words
What is it for?
It is for guiding naming and code organization in Ruby on Rails applications, especially around errors, time zones, and database boundaries.
Why use it?
It helps avoid common Rails design mistakes that can cause confusing time errors, misplaced database logic, or unclear code.

Cursor rule

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/eduardolagares/ia-config/clean_code_ruby
Clone the repo
git clone --depth 1 https://github.com/eduardolagares/ia-config
Per session 469 This file is loaded in full into every session.
When invoked 469 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 $0.00469 $0.00469
Opus 5 $0.00234 $0.00234
Sonnet 5 $0.00094 $0.00094
Haiku 4.5 $0.00047 $0.00047

Measured 3d ago against content hash 0ae223aa4cb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

clean_code_ruby 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 3d 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.

rules/eduardolagares/clean_code_ruby.mdc · 29 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 3d ago First seen · 29 lines · 469 tokens per session scan A 0ae223aa4cb8

Subscribe to this mod's changes

clean_code_ruby is a cursor rule published in the GitHub repository eduardolagares/ia-config (3 stars, last pushed 6d ago), with no licence file. It adds 469 tokens to every session, about $0.0023 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.