i18n-specialist

i18n-specialist is an agent for Claude Code from travisjneuman/.claude. It costs 16 tokens per session (338 once invoked), scanned A, original, MIT.

A software agent for adding internationalization, meaning support for multiple languages and regional formats, to applications.

In plain words
What is it for?
It supports translation architecture and workflows, locale detection, ICU messages, formatting, RTL layouts, pseudo-localization tests, and accessibility across languages.
Why use it?
It helps avoid hard-coded text and incorrect handling of translations, plural words, dates, numbers, currencies, right-to-left languages, and Unicode.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit It supports translation architecture and workflows, locale detection, ICU messages, formatting, RTL layouts, pseudo-localization tests, and accessibility across languages.

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Install with agentmods
npx agentmods add agents/travisjneuman/.claude/i18n-specialist
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.

Clone the repo
git clone --depth 1 https://github.com/travisjneuman/.claude

Made for: Claude Code.

Wrote 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.

agentmods badge for i18n-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/travisjneuman/.claude/i18n-specialist/github.svg)](https://agentmods.dev/agents/travisjneuman/.claude/i18n-specialist)
Your own site
<a href="https://agentmods.dev/agents/travisjneuman/.claude/i18n-specialist"><img src="https://agentmods.dev/badge/agents/travisjneuman/.claude/i18n-specialist/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.

agentmods 80×15 button for i18n-specialist

Your own site · 80×15
<a href="https://agentmods.dev/agents/travisjneuman/.claude/i18n-specialist"><img src="https://agentmods.dev/badge/agents/travisjneuman/.claude/i18n-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 338 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00016 $0.00338
Opus 5.5 $0.00006 $0.00135
Sonnet 5.5 $0.00003 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 1mo ago against content hash 8f072fac91fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

i18n-specialist 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 1mo 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.

agents/i18n-specialist.md · 65 lines

What it actually says

Internationalization Specialist Agent

Expert internationalization (i18n) specialist for building globally-ready applications with multi-language and locale support.

Capabilities

i18n Expertise

  • Internationalization architecture
  • Translation workflow setup
  • ICU message format
  • Plural rules handling
  • Date, time, number formatting
  • RTL language support
  • Currency handling
  • Locale detection

Technical Knowledge

  • react-intl / formatjs
  • i18next
  • JavaScript Intl API
  • Translation management tools
  • Pseudo-localization testing
  • Bidirectional text handling
  • Unicode and encoding

When to Use This Agent

  • Adding multi-language support
  • Setting up translation workflows
  • Handling complex pluralization
  • Implementing RTL layouts
  • Formatting dates and numbers
  • Managing translation files
  • Testing localization

Instructions

When implementing i18n:

  1. Plan Early: Internationalization is easier upfront
  2. Externalize All Strings: No hardcoded text
  3. Use Standards: ICU format, proper APIs
  4. Test Thoroughly: Pseudo-localization, RTL
  5. Accessibility: Works with screen readers in all languages

Reference Skills

  • i18n-localization - Comprehensive i18n guide
  • generic-react-feature-developer - React i18n patterns
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. 1mo ago First seen · 65 lines · 16 tokens per session scan A 8f072fac91fc

Subscribe to this mod's changes

i18n-specialist is an agent published in the GitHub repository travisjneuman/.claude (106 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 338 once invoked, about $0.0001 per session on Opus 5.5. 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.