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 skills add ThibautBaissac/rails_ai_agents --skill i18n-patternsgit clone --depth 1 https://github.com/ThibautBaissac/rails_ai_agentsWrote 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/skills/thibautbaissac/rails_ai_agents/i18n-patterns)<a href="https://agentmods.dev/skills/thibautbaissac/rails_ai_agents/i18n-patterns"><img src="https://agentmods.dev/badge/skills/thibautbaissac/rails_ai_agents/i18n-patterns/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.
<a href="https://agentmods.dev/skills/thibautbaissac/rails_ai_agents/i18n-patterns"><img src="https://agentmods.dev/badge/skills/thibautbaissac/rails_ai_agents/i18n-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 5.1 | $0.00079 | $0.01429 |
| Opus 5 | $0.00039 | $0.00714 |
| Sonnet 5 | $0.00016 | $0.00286 |
| Haiku 4.5 | $0.00008 | $0.00143 |
Grade A, and why
i18n-patterns 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.
I18n Patterns for Rails 8
Overview
Rails I18n provides internationalization support:
- Translation lookups
- Locale management
- Date/time/currency formatting
- Pluralization rules
- Lazy lookups in views
Quick Start
# config/application.rb
config.i18n.default_locale = :en
config.i18n.available_locales = [:en, :fr, :de]
config.i18n.fallbacks = true
Project Structure
config/locales/
├── en.yml # English defaults
├── fr.yml # French defaults
├── models/
│ ├── en.yml # Model translations (EN)
│ └── fr.yml # Model translations (FR)
├── views/
│ ├── en.yml # View translations (EN)
│ └── fr.yml # View translations (FR)
├── mailers/
│ ├── en.yml # Mailer translations (EN)
│ └── fr.yml # Mailer translations (FR)
└── components/
├── en.yml # Component translations (EN)
└── fr.yml # Component translations (FR)
Locale File Organization
Organize locale files by domain: models/, views/, mailers/, components/.
- Models:
activerecord.models,activerecord.attributes,activerecord.errors - Views: nested under controller name and action (e.g.
events.index.title) - Shared:
common.actions,common.messages,common.date.formats - Components:
components.<component_name>.<key>
See locale-files.md for complete YAML examples for models, views, shared keys, and components.
Usage Patterns
Key Principles
- Use lazy lookup in views:
t(".title")resolves to"events.index.title" - Use
_htmlsuffix for strings containing HTML markup - Use
I18n.l(localize) for dates, times, and numbers — notI18n.t - Use
I18n.twith full key path in models, services, and presenters - Pass dynamic values via interpolation:
t(".greeting", name: user.name)
In Views
<h1><%= t(".title") %></h1>
<%= link_to t(".new_event"), new_event_path %>
<p><%= t(".welcome", name: current_user.name) %></p>
<p><%= t(".intro_html", link: link_to("here", help_path)) %></p>
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 10d ago First seen · 207 lines · 79 tokens per session scan A c5e3387e9ba0
i18n-patterns is a skill published in the GitHub repository ThibautBaissac/rails_ai_agents (661 stars, last pushed 3mo ago), licensed MIT. It adds 79 tokens to every session and 1,429 once invoked, about $0.0004 per session on Opus 5. 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.
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