i18n-patterns

Implements internationalization with Rails I18n for multi-language support. Use when adding translations, managing locales, localizing dates/currencies, pluralization, or when user mentions i18n, translations, locales, or multi-language.

1.25x

Quality

82%

Does it follow best practices?

Impact

100%

1.25x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

100%

40%

Adding Multi-Language Support to a Products Feature

Locale file structure and view lazy lookups

Criteria

Without context

With context

Views locale in views/

100%

Models locale in models/

100%

Nested YAML keys

100%

No flat keys

100%

Lazy lookup in view

100%

_html suffix for HTML

100%

Interpolation not concatenation

100%

Controller lazy lookup

100%

ActiveRecord model structure

100%

Validation error translation

100%

French locale provided

100%

20%

Implementing Multi-Language Routing for a SaaS Dashboard

URL-based locale switching and i18n configuration

Criteria

Without context

With context

Route scope for locale

100%

around_action :switch_locale

100%

I18n.with_locale usage

100%

default_url_options

100%

User preference chain

100%

Accept-Language extraction

100%

Fallbacks enabled

100%

Available locales configured

100%

Default locale configured

100%

i18n-tasks in development

100%

URL-based locale fallback

100%

Localized Booking Summary for an Event Management Platform

Pluralization, date/currency formatting, and i18n testing

Criteria

Without context

With context

Pluralization zero/one/other

100%

French pluralization

100%

count: interpolation in t()

100%

I18n.l for date

100%

Named date formats defined

100%

Currency locale formatting

100%

French currency locale config

100%

Nil date handling

100%

i18n RSpec spec with BaseTask

100%

Missing translation raises in tests

100%

require i18n/tasks

100%

Exception handler restored

100%

Repository: ThibautBaissac/rails_ai_agents
Commit: 15fdeaf

Evaluated: 30 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Adding Multi-Language Support to a Products Feature Implementing Multi-Language Routing for a SaaS Dashboard Localized Booking Summary for an Event Management Platform

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