skill-feature-design

skill-feature-design is a cursor rule for Cursor from dewtech-technologies/dare-method. It costs 0 tokens per session (619 once invoked), scanned A, original, MIT.

A set of rules for planning a new feature in an existing project. It first examines the project's technology, architecture, database, migrations, and important dependencies before proposing changes.

In plain words
What is it for?
It is for producing a scoped implementation plan for new functionality while preserving the project's current conventions and architecture.
Why use it?
It reduces the risk of adding code that conflicts with the existing system or overlooks related database and dependency work.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It is for producing a scoped implementation plan for new functionality while preserving the project's current conventions and architecture.

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Install with agentmods
npx agentmods add rules/dewtech-technologies/dare-method/skill-feature-design
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/dewtech-technologies/dare-method

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 skill-feature-design

README.md
[![agentmods](https://agentmods.dev/badge/rules/dewtech-technologies/dare-method/skill-feature-design/github.svg)](https://agentmods.dev/rules/dewtech-technologies/dare-method/skill-feature-design)
Your own site
<a href="https://agentmods.dev/rules/dewtech-technologies/dare-method/skill-feature-design"><img src="https://agentmods.dev/badge/rules/dewtech-technologies/dare-method/skill-feature-design/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 skill-feature-design

Your own site · 80×15
<a href="https://agentmods.dev/rules/dewtech-technologies/dare-method/skill-feature-design"><img src="https://agentmods.dev/badge/rules/dewtech-technologies/dare-method/skill-feature-design.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 619 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 $0.00619
Opus 5.5 $0.00000 $0.00248
Sonnet 5.5 $0.00000 $0.00124
Haiku 4.5 $0.00000 $0.00062

Measured 1mo ago against content hash fd682983b4d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-feature-design 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 1mo 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.

implementations/cursor/.cursor/rules/skill-feature-design.mdc · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Feature Design para Projetos Existentes

Objetivo

Esta skill ensina você (a IA) a analisar o contexto de um projeto que já existe e planejar a inserção de uma nova feature de forma segura, isolada e respeitando os padrões já estabelecidos.

Quando Usar

  • Quando o usuário pede para adicionar uma funcionalidade nova em um projeto existente.
  • Quando o comando /generate-feature-design for invocado.

Como Analisar o Projeto Existente

O primeiro passo é sempre entender o que já existe antes de propor qualquer coisa nova.

Identifique a Stack e Arquitetura: Leia os arquivos de configuração do projeto (composer.json, package.json, etc.) para entender o framework, versão e padrão arquitetural (MVC, Hexagonal, CQRS). Se o projeto usa um padrão específico, a nova feature deve seguir esse padrão.

Analise o Banco de Dados: Leia as migrations ou esquemas existentes para entender as tabelas relacionadas à feature solicitada. Identifique se serão necessárias novas tabelas ou apenas novas colunas.

Verifique Dependências Chave: Entenda quais bibliotecas de terceiros já estão em uso (ex: Sanctum para auth, Spatie para permissões) e que podem ser aproveitadas pela nova feature.

Como Gerar o Design da Feature

O documento DARE/DESIGN-Feature-[Nome].md deve ser focado e conciso. Ele não descreve o sistema inteiro, apenas o impacto da nova feature.

Seção Conteúdo
Contexto Como a feature se conecta ao que já existe
Novos Arquivos Controllers, Models, Services a serem criados
Arquivos Modificados O que muda no código legado
Banco de Dados Novas tabelas ou colunas
Segurança Proteções OWASP específicas para a feature
Restrições O que não pode ser tocado

Regras de Ouro

  1. Siga o Padrão Local: Se o projeto usa um padrão antigo ou específico, adapte a feature a ele, a menos que o usuário solicite refatoração explícita.
  2. Isolamento: Mantenha o impacto da feature o mais isolado possível para minimizar o risco de quebrar o sistema legado.
  3. Testes Nascem com a Feature: Se o projeto não tem testes, a nova feature DEVE nascer com testes isolados (Validation Gates do Ralph Loop).
  4. Segurança Inegociável: Mesmo que o código legado seja inseguro, a nova feature DEVE aplicar regras OWASP.

Read the full file on GitHub · 44 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. 1mo ago First seen · 44 lines · 619 tokens per session scan A fd682983b4d5

Subscribe to this mod's changes

skill-feature-design is a cursor rule published in the GitHub repository dewtech-technologies/dare-method (5 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 619 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 2026-09-03.