010-architecture

010-architecture is a cursor rule for Cursor from juandoroteoflesiauni-lang/Market-options-stocks-Scanner. It costs 0 tokens per session (2,097 once invoked), scanned A, original, Apache-2.0.

A set of architecture rules for organising the trading terminal into separate layers. Each layer has one job, such as receiving web requests, applying business rules or reading the database.

In plain words
What is it for?
Use it when arranging FastAPI endpoints, business services, database repositories, authentication, portfolios, market data and risk controls.
Why use it?
It helps prevent tangled code where unrelated responsibilities are mixed together, making bugs and future changes harder to manage.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when arranging FastAPI endpoints, business services, database repositories, authentication, portfolios, market data and risk controls.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture
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.

Clone the repo
git clone --depth 1 https://github.com/juandoroteoflesiauni-lang/Market-options-stocks-Scanner

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 010-architecture

README.md
[![agentmods](https://agentmods.dev/badge/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture/github.svg)](https://agentmods.dev/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture)
Your own site
<a href="https://agentmods.dev/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture"><img src="https://agentmods.dev/badge/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for 010-architecture

Your own site · 80×15
<a href="https://agentmods.dev/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture"><img src="https://agentmods.dev/badge/rules/juandoroteoflesiauni-lang/market-options-stocks-scanner/010-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 2,097 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.02097
Opus 5 $0.00000 $0.01048
Sonnet 5 $0.00000 $0.00419
Haiku 4.5 $0.00000 $0.00210

Measured 12d ago against content hash 18df3aa1dc03, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

010-architecture 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 12d 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/010-architecture.mdc · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🏗️ ARQUITECTURA ANTI-SPAGHETTI — TRADING TERMINAL

PRINCIPIO FUNDAMENTAL: SEPARACIÓN DE RESPONSABILIDADES

Cada capa del sistema tiene UNA sola responsabilidad. Mezclar responsabilidades = código spaghetti = bugs en producción = pérdida de dinero.


📐 ARQUITECTURA BACKEND (Python/FastAPI)

Estructura de capas obligatoria:

backend/app/
├── api/                    ← SOLO: recibir requests, validar inputs, llamar services
│   ├── v1/
│   │   ├── orders.py       ← Endpoints de órdenes
│   │   ├── portfolio.py    ← Endpoints de portfolio
│   │   ├── market.py       ← Endpoints de datos de mercado
│   │   └── auth.py         ← Endpoints de autenticación
│   └── deps.py             ← Dependencias compartidas (auth, db session)
│
├── services/               ← SOLO: lógica de negocio, reglas del dominio
│   ├── order_service.py    ← Crear, cancelar, modificar órdenes
│   ├── portfolio_service.py← Calcular P&L, balance, posiciones
│   ├── market_service.py   ← Obtener precios, volumen, OHLCV
│   └── risk_service.py     ← Validar riesgo, límites, stop-loss
│
├── repositories/           ← SOLO: acceso a base de datos
│   ├── order_repo.py
│   ├── portfolio_repo.py
│   └── trade_repo.py
│
├── models/                 ← SOLO: definición de estructuras de datos
│   ├── order.py            ← SQLAlchemy models
│   ├── trade.py
│   └── portfolio.py
│
├── schemas/                ← SOLO: validación de requests/responses (Pydantic)
│   ├── order_schema.py
│   └── portfolio_schema.py
│
├── core/                   ← SOLO: configuración y utilidades transversales
│   ├── config.py           ← Settings desde .env
│   ├── security.py         ← JWT, hashing, autenticación
│   ├── database.py         ← Conexión DB
│   ├── logger.py           ← Sistema de logging
│   └── exceptions.py       ← Excepciones personalizadas
│
└── strategies/             ← SOLO: algoritmos de trading
    ├── base_strategy.py    ← Clase abstracta base
    ├── momentum.py
    └── mean_reversion.py

Read the full file on GitHub · 242 lines

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. 12d ago First seen · 242 lines · 0 tokens per session scan A 18df3aa1dc03

Subscribe to this mod's changes

010-architecture is a cursor rule published in the GitHub repository juandoroteoflesiauni-lang/Market-options-stocks-Scanner (11 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 2,097 tokens. 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.