views

A set of Rails view conventions covering folders, file names, layouts, templates, and resource pages.

In plain words
What is it for?
Use it when creating or editing Rails pages, layouts, partials, forms, shared elements, or resource index and detail views.
Why use it?
It gives views a predictable structure so developers can find, reuse, and maintain page templates more easily.

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/wintermeyer/cursor-rails-rules/views
Clone the repo
git clone --depth 1 https://github.com/wintermeyer/cursor-rails-rules

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,437 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00000 $0.01437
Opus 5 $0.00000 $0.00718
Sonnet 5 $0.00000 $0.00287
Haiku 4.5 $0.00000 $0.00144

Measured yesterday against content hash f736e155b20c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

views 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 yesterday.

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/views.mdc · 250 lines

How it starts

The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Structure

  1. Directory Organization
app/views/
├── layouts/
├── shared/
├── components/
└── [resource]/
    ├── index.html.erb
    ├── show.html.erb
    ├── _form.html.erb
    └── [action].html.erb
  1. Naming Conventions
  • Use lowercase
  • Use underscores for spaces
  • Prefix partials with underscore
  • Use meaningful names
  • Follow resource naming

Templates

  1. Layout Files
<!DOCTYPE html>
<html>
  <head>
    <title><%= content_for?(:title) ? yield(:title) : 'Default Title' %></title>
    <%= csrf_meta_tags %>
    <%= csp_meta_tag %>
    <%= stylesheet_link_tag "application" %>
    <%= javascript_include_tag "application", defer: true %>
  </head>
  <body>
    <%= render "shared/header" %>
    <main>
      <%= render "shared/flash" %>
      <%= yield %>
    </main>
    <%= render "shared/footer" %>
  </body>
</html>
  1. Index Views
<% content_for :title, t('.title') %>

<div class="container">
  <header class="mb-4">
    <h1><%= t('.title') %></h1>
    <%= link_to t('.new'), new_resource_path, class: 'button' %>
  </header>

  <%= render 'filter_form' if @filters.present? %>

  <% if @resources.any? %>
    <%= render @resources %>
  <% else %>
    <%= render 'shared/empty_state' %>
  <% end %>

  <%= render 'shared/pagination', collection: @resources %>
</div>
  1. Show Views
<% content_for :title, t('.title', name: @resource.name) %>

<div class="container">
  <header class="mb-4">
    <h1><%= t('.title', name: @resource.name) %></h1>
    <div class="actions">
      <%= link_to t('.edit'), edit_resource_path(@resource), class: 'button' %>
      <%= button_to t('.delete'), resource_path(@resource),
          method: :delete,
          class: 'button button--danger',
          data: { confirm: t('.confirm_delete') } %>
    </div>
  </header>

  <%= render 'details', resource: @resource %>
  <%= render 'related_resources' if @resource.related.any? %>
</div>
  1. Form Partials
<%= form_with model: @resource, class: 'form' do |f| %>
  <%= render 'shared/error_messages', resource: @resource %>

  <div class="form-group">
    <%= f.label :attribute %>
    <%= f.text_field :attribute, class: 'form-control' %>
    <%= f.error_message :attribute %>
  </div>

  <div class="actions">
    <%= f.submit class: 'button' %>
    <%= link_to t('.cancel'), :back, class: 'button button--secondary' %>
  </div>
<% end %>

Read the full file on GitHub · 250 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. yesterday First seen · 250 lines · 0 tokens per session scan A f736e155b20c

Subscribe to this mod's changes

views is a cursor rule published in the GitHub repository wintermeyer/cursor-rails-rules (37 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,437 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.