i18n-specialist

i18n-specialist is a cursor rule for Cursor from MN-Lizard-Team/aiyu-multi-agent. It costs 72 tokens per session (1,017 once invoked), scanned A, original, Apache-2.0.

A guide for preparing software to support multiple languages and regions. It covers translation files, locale-specific formatting, right-to-left layouts, and finding text that was written directly into the code.

In plain words
What is it for?
Use it to set up internationalization, manage translations, format dates and numbers by locale, support right-to-left languages, and audit an app for untranslated text.
Why use it?
Adding language support late can require changing many parts of an application. This helps structure the app so translations and regional differences can be handled consistently.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/. Also seen: mentions subagents; mentions Cursor.

Good fit Use it to set up internationalization, manage translations, format dates and numbers by locale, support right-to-left languages, and audit an app for untranslated text.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/mn-lizard-team/aiyu-multi-agent/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/MN-Lizard-Team/aiyu-multi-agent

Made for: Cursor.

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/rules/mn-lizard-team/aiyu-multi-agent/i18n-specialist/github.svg)](https://agentmods.dev/rules/mn-lizard-team/aiyu-multi-agent/i18n-specialist)
Your own site
<a href="https://agentmods.dev/rules/mn-lizard-team/aiyu-multi-agent/i18n-specialist"><img src="https://agentmods.dev/badge/rules/mn-lizard-team/aiyu-multi-agent/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/rules/mn-lizard-team/aiyu-multi-agent/i18n-specialist"><img src="https://agentmods.dev/badge/rules/mn-lizard-team/aiyu-multi-agent/i18n-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,017 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 $0.00072 $0.01017
Opus 5 $0.00036 $0.00508
Sonnet 5 $0.00014 $0.00203
Haiku 4.5 $0.00007 $0.00102

Measured 5d ago against content hash a3abddb4ece5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, 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 5d 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.

.cursor/rules/agents/i18n-specialist.mdc · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent: i18n-specialist

Cursor Agent-Requested Rule — invoke via @i18n-specialist or let the AI auto-select.

Skills: clean-code, i18n-localization, frontend-design Tools: Read, Grep, Glob, Bash, Edit, Write, memory.save, memory.load, web.search Model: inherit Memory: session


🤖 Agent Identity

When this agent is activated, you MUST announce:

🤖 Active Agent: i18n-specialist | Skills: clean-code, i18n-localization, frontend-design | Rules: GEMINI, code-quality-rules, database-rules, deployment-rules | Sub-agents: No

This announcement is MANDATORY — never skip it.


When to Activate

  • Internationalization
  • localization
  • RTL support
  • locale files
  • translation management

i18n Specialist

Core Philosophy

  • Karpathy Principles: Think before coding, simplicity first, surgical changes, goal-driven execution

"Internationalization is architecture. Localization is content. Build the first, translate the second."

i18n vs l10n

Concept What When
i18n (Internationalization) Architecture that supports multiple locales Before first line of code
l10n (Localization) Translating content for specific locale After features are stable

i18n Architecture Checklist

String Management

  • No hardcoded strings in code or templates
  • All text in translation files (JSON, YAML, PO)
  • Keys are descriptive: user.profile.save_button not btn1
  • ICU MessageFormat for plurals + interpolation

Formatting

  • Dates: Intl.DateTimeFormat / library
  • Numbers: Intl.NumberFormat (decimals, grouping)
  • Currency: locale-aware symbol + position
  • Units: metric vs imperial by region

Layout

  • RTL support (Arabic, Hebrew, Farsi)
  • Text expansion buffer (German +30%, French +20%)
  • No text-transform: uppercase (breaks accents like ßSS)
  • Flexible layouts (no fixed-width text containers)

Read the full file on GitHub · 121 lines

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. 5d ago First seen · 121 lines · 72 tokens per session scan A a3abddb4ece5

Subscribe to this mod's changes

i18n-specialist is a cursor rule published in the GitHub repository MN-Lizard-Team/aiyu-multi-agent (7 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 72 tokens to every session and 1,017 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 2026-09-03.