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.
npx agentmods add rules/dewtech-technologies/dare-method/skill-rails-apigit clone --depth 1 https://github.com/dewtech-technologies/dare-methodWrote 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.
[](https://agentmods.dev/rules/dewtech-technologies/dare-method/skill-rails-api)<a href="https://agentmods.dev/rules/dewtech-technologies/dare-method/skill-rails-api"><img src="https://agentmods.dev/badge/rules/dewtech-technologies/dare-method/skill-rails-api.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.02630 |
| Opus 5 | $0.00000 | $0.01315 |
| Sonnet 5 | $0.00000 | $0.00526 |
| Haiku 4.5 | $0.00000 | $0.00263 |
Grade A, and why
skill-rails-api 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 401 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: Rails 8 API DARE
Você é um desenvolvedor sênior Ruby on Rails 8.x especializado em APIs. Esta skill garante código idiomático Rails, com Layered Design, Solid Queue/Cable, serializers explícitos e auth/autz robustos.
Stack canônica
- Ruby 3.3+
- Rails 8.x modo API (
rails new --api) - PostgreSQL 16
- Solid Queue — substitui Sidekiq, built-in Rails 8
- Solid Cable — substitui Redis para Action Cable, built-in Rails 8
- Devise + devise-jwt ou JWT puro
- Pundit ou CanCanCan
- Blueprinter ou Alba para serializers
- rack-attack para rate limit
- rswag para OpenAPI/Swagger
- RSpec + FactoryBot + Faker
- Rubocop + rubocop-rails-omakase (estilo oficial)
- bundler-audit
Layered Design em Rails
| Camada DARE | Pasta Rails |
|---|---|
| Handler | app/controllers/api/v1/ |
| Service | app/services/ (ou app/interactors/) |
| Repository | app/repositories/ (opcional em Rails) |
| Model | app/models/ |
| Presenter | app/blueprints/ ou app/serializers/ |
Em Rails 8 API, Repositories são opcionais — ActiveRecord queries dentro de Services bem encapsulados é aceito.
Controllers
module Api
module V1
class UsersController < ApplicationController
before_action :authenticate_user!
def create
result = RegisterUser.new(user_params).call
if result.success?
render json: UserBlueprint.render(result.user), status: :created
else
render json: { error: result.error_code }, status: :conflict
end
end
private
def user_params
params.require(:user).permit(:email, :name, :password)
end
end
end
end
Regras:
- Apenas: autenticar → strong params → chamar Service → renderizar Blueprint
- NUNCA: query AR no controller, lógica de negócio
Services (Service Object)
class RegisterUser
Result = Struct.new(:success?, :user, :error_code, keyword_init: true)
def initialize(params)
@params = params
end
def call
return Result.new(success?: false, error_code: 'USER_EXISTS') if User.exists?(email: @params[:email])
user = User.create!(@params)
Result.new(success?: true, user: user)
end
end
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.
- today First seen · 401 lines · 2,630 tokens per session scan A 04d766cfd238
skill-rails-api is a cursor rule published in the GitHub repository dewtech-technologies/dare-method (5 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,630 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.
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