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 skills/verygoodopensource/vgv-ai-flutter-plugin/internationalizationnpx skills add VeryGoodOpenSource/vgv-ai-flutter-plugin --skill internationalizationgit clone --depth 1 https://github.com/VeryGoodOpenSource/vgv-ai-flutter-pluginWrote 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/verygoodopensource/vgv-ai-flutter-plugin/internationalization)<a href="https://agentmods.dev/skills/verygoodopensource/vgv-ai-flutter-plugin/internationalization"><img src="https://agentmods.dev/badge/skills/verygoodopensource/vgv-ai-flutter-plugin/internationalization.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 | $0.00023 | $0.01417 |
| Opus 5 | $0.00012 | $0.00709 |
| Sonnet 5 | $0.00005 | $0.00283 |
| Haiku 4.5 | $0.00002 | $0.00142 |
Grade A, and why
internationalization 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 4d 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 — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Internationalization
Internationalization (i18n) and localization (l10n) best practices for Flutter applications using Flutter's built-in localization system with ARB files as the single source of truth.
Core Standards
Apply these standards to ALL internationalization work:
- Never hardcode user-facing strings — all text must go through the l10n system
- Use Flutter's built-in localization system —
flutter_localizations+intl, never third-party i18n libraries - ARB files are the single source of truth for all translations
BuildContextextension for cleaner l10n access — usecontext.l10ninstead ofAppLocalizations.of(context)- Pass localized strings as parameters to reusable widgets — never couple shared widgets directly to
AppLocalizations - Use
EdgeInsetsDirectional(start/end) instead ofEdgeInsets(left/right) — ensures correct layout in RTL languages - Handle RTL layout properly — use directional widgets for padding, positioning, and alignment
- Implement i18n early — even if only one language is planned initially, the overhead is small and the long-term benefit is significant
Key Definitions
| Term | Definition |
|---|---|
| Locale | Set of properties defining user region, language, and preferences (currency, time, numbers) |
| Localization (l10n) | Process of adapting software for a specific language by translating text and adding regional layouts |
| Internationalization (i18n) | Process of designing software so it can be adapted to different languages without engineering changes |
Setup Pipeline and ARB File Format
Add flutter_localizations and intl as dependencies, enable generate: true in pubspec.yaml, configure l10n.yaml, create ARB files in lib/l10n/arb/, run flutter gen-l10n, and wire up MaterialApp with localizationsDelegates and supportedLocales. ARB files support simple strings, placeholders, and ICU plural syntax.
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.
- 4d ago First seen · 157 lines · 23 tokens per session scan A 2d87919445e8
internationalization is a skill published in the GitHub repository VeryGoodOpenSource/vgv-ai-flutter-plugin (160 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 1,417 once invoked, about $0.0001 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.
Other skills, from other repositories
flutter-internationalization
Add, fix, audit, and maintain Flutter internationalization with gen-l10n, ARB files, AppLocalizations, flutterlocalizations, intl formatting, plural/select messages, RTL support, locale-specific number/date formatting, and localization build errors. Use when asked to add l10n or i18n, translate Flutter UI text…
flutter
Flutter 3.44 — widget catalog, layouts, interactivity, animations, navigation, assets, adaptive/responsive design, accessibility, i18n, state management, data & backend (networking, serialization, Firebase, persistence), app architecture (MVVM, DI), platform integration (Android, iOS, web, Windows, macOS, Linux…
flutter-accessibility
Audit and improve Flutter accessibility, inclusive interaction, localization safety, and RTL behavior. Use for screen-reader semantics, focus and keyboard navigation, text scaling, contrast, touch targets, reduced motion, form errors, RTL, localization, or accessibility acceptance checks.
nylo-localization
Use when adding multi-language support, creating or editing translation files, using Text.tr or .tr() for translated strings, switching languages at runtime, configuring supported locales, setting up the LanguageSwitcher widget, handling RTL languages, or debugging missing translations in a Nylo v7 Flutter app.
fl-route-config
Configures routes with the IRoute / CustomRouter abstractions in core and exposes navigation via a BuildContext coordinator.
fl-bloc-pattern
Implements BLoC state management using CoreBlocBase, an abstract State hierarchy, and a freezed StateData.