action-mailer-patterns

Implements transactional emails with Action Mailer and TDD. Use when creating email templates, notification emails, password resets, email previews, or when user mentions mailer, email, notifications, or transactional emails.

1.25x

Quality

88%

Does it follow best practices?

Impact

95%

1.25x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

92%

18%

Order Confirmation Email

TDD mailer workflow and delivery

Criteria

Without context

With context

Spec file created

100%

type: :mailer tag

100%

Subject uses I18n

100%

Header assertions

100%

HTML body tested

100%

Text body tested

100%

have_enqueued_mail used

100%

deliver_later used

100%

Both templates present

100%

Mailer inherits ApplicationMailer

100%

Preview file created

100%

FactoryBot in preview

100%

20%

Multilingual Password Reset Email

I18n localization for emails

Criteria

Without context

With context

I18n.with_locale wrapping

83%

100%

Relative t() for subject

100%

t() in HTML template

60%

100%

t() in text template

60%

100%

English locale file location

100%

Second locale file present

100%

Locale YAML structure

100%

deliver_later used

100%

Both templates present

100%

Mailer inherits ApplicationMailer

100%

No hardcoded subject string

100%

94%

20%

Daily Activity Digest Email System

ApplicationMailer setup and conditional email

Criteria

Without context

With context

ApplicationMailer from address

100%

ApplicationMailer layout

100%

ApplicationMailer base class

100%

after_action log callback

50%

100%

Email layout file

100%

Layout max-width 600px

100%

Layout .button class

100%

Layout .footer section

100%

Conditional early return

100%

find_each with batch_size

70%

100%

deliver_later in bulk

100%

Digest mailer inherits ApplicationMailer

100%

Both templates present

100%

t() for subject in digest

Repository: ThibautBaissac/rails_ai_agents
Commit: 15fdeaf

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

Table of Contents

Order Confirmation Email Multilingual Password Reset Email Daily Activity Digest Email System

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