regla-de-oro

regla-de-oro is a cursor rule for Cursor from damiansire/web-worker-patterns. It costs 197 tokens per session, scanned A, original, MIT.

A set of architecture rules for an application with multiple visual themes. It keeps shared business logic in `core/` and theme-specific presentation in `themes/`.

In plain words
What is it for?
Use it when building or maintaining a multi-theme application, especially one that uses Web Workers for background tasks. It guides code placement, shared design values, and final formatting, build, test, and boundary checks.
Why use it?
It prevents business logic from becoming tied to a particular design. It also defines checks to run before finishing a change.

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/damiansire/web-worker-patterns/regla-de-oro
Clone the repo
git clone --depth 1 https://github.com/damiansire/web-worker-patterns

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 regla-de-oro

README.md
[![agentmods](https://agentmods.dev/badge/rules/damiansire/web-worker-patterns/regla-de-oro.svg)](https://agentmods.dev/rules/damiansire/web-worker-patterns/regla-de-oro)
Your own site
<a href="https://agentmods.dev/rules/damiansire/web-worker-patterns/regla-de-oro"><img src="https://agentmods.dev/badge/rules/damiansire/web-worker-patterns/regla-de-oro.svg" alt="Measured on agentmods" height="20"></a>
Per session 197 This file is loaded in full into every session.
When invoked 197 The same file — it is already loaded in full.
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 $0.00197 $0.00197
Opus 5 $0.00098 $0.00098
Sonnet 5 $0.00039 $0.00039
Haiku 4.5 $0.00020 $0.00020

Measured 5d ago against content hash 661e5bd9f83b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

regla-de-oro 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 5d 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/regla-de-oro.mdc · 14 lines

What it actually says

  • El dominio se escribe una vez en core/; la presentación cinco veces en themes/.
  • core/ NUNCA importa de themes/ — la dependencia va en un solo sentido.
  • La lógica de Web Workers vive en core/domain/workers/, nunca dentro de un theme.
  • Nada de colores/fuentes literales en componentes compartidos: siempre tokens semánticos (--surface, --ink, --accent, --thread-*).
  • Antes de cerrar un cambio: npm run format:check, npm run build, npm test, npm run lint:boundaries.
  • Fuente de verdad completa: ARQUITECTURA-multi-theme.md, CLAUDE.md, docs/AI-PROCESS.md, AGENTS.md.
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. 5d ago First seen · 14 lines · 197 tokens per session scan A 661e5bd9f83b

Subscribe to this mod's changes

regla-de-oro is a cursor rule published in the GitHub repository damiansire/web-worker-patterns (175 stars, last pushed 19d ago), licensed MIT. It adds 197 tokens to every session, about $0.0010 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.