i18n

i18n is a skill for Claude Code from helderberto/agent-skills. It costs 65 tokens per session (463 once invoked), scanned A, original, MIT.

A check of an application's translation coverage and user-facing text. Internationalization, often called i18n, prepares software to support multiple languages and regions.

In plain words
What is it for?
Use it in frontend projects with a translation library to locate hardcoded interface text, compare locale files, and report missing translations.
Why use it?
It finds visible text that was left untranslated and translation keys missing from some language files.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the hb plugin — 41 skills, 4 agents shipped together

Good fit Use it in frontend projects with a translation library to locate hardcoded interface text, compare locale files, and report missing translations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/helderberto/agent-skills/i18n
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.

Any agent
npx skills add helderberto/agent-skills --skill i18n
Clone the repo
git clone --depth 1 https://github.com/helderberto/agent-skills

Made for: Claude Code.

Or install hb, the plugin that ships this one along with the rest of its 41 skills, 4 agents.

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

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/helderberto/agent-skills/i18n"><img src="https://agentmods.dev/badge/skills/helderberto/agent-skills/i18n.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 463 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00065 $0.00463
Opus 5.5 $0.00026 $0.00185
Sonnet 5.5 $0.00013 $0.00093
Haiku 4.5 $0.00006 $0.00046

Measured today against content hash d06dff6b6584, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

i18n 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 today.

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.

skills/i18n/SKILL.md · 53 lines

What it actually says

i18n Audit

Detection

Read package.json for i18n library:

  • react-i18next / i18next
  • next-intl
  • vue-i18n
  • react-intl (FormatJS)

Read locale files to understand key structure (e.g. src/locales/en.json).

Workflow

  1. Detect i18n library and locale file locations
  2. Search JSX/TSX/Vue files for hardcoded user-facing strings:
    • String literals in JSX: <p>Hello world</p>
    • String props: placeholder="Search...", label="Submit"
    • aria-label="Close menu"
  3. Compare locale files — find missing keys between locales
  4. Report findings

Output format

Hardcoded strings (file:line):

src/components/Header.tsx:12  "Welcome back"  → suggest key: header.welcomeBack
src/components/Form.tsx:34    placeholder="Search..."  → suggest key: form.searchPlaceholder

Missing translations (key present in base locale but absent in others):

Key: dashboard.emptyState  missing in: pt-BR, es
Key: errors.networkTimeout  missing in: pt-BR

Rules

  • Only flag user-visible strings (skip internal IDs, CSS classes, URLs, enum values)
  • Suggest translation key names in camelCase matching project convention
  • Never auto-modify locale files — report only

Error Handling

  • If no i18n library detected → report project may not use i18n; still list any hardcoded strings found
  • If no locale files found → skip missing-key comparison; only report hardcoded strings
  • If locale files are not JSON (e.g. .po, .yaml) → read them anyway and adapt key comparison logic
Files

What ships with it

1 file 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.

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. 12d ago Changed · +1 lines d577be8f682b
  2. 1mo ago Changed · -1 tokens per session d06dff6b6584
  3. 1mo ago Changed · -21 tokens per session ee07835460d8
  4. 1mo ago Changed · +19 tokens per session 590698bd5cdf
  5. 1mo ago First seen · 53 lines · 68 tokens per session scan A c8bd6a4e80db

Subscribe to this mod's changes

i18n is a skill published in the GitHub repository helderberto/agent-skills (17 stars, last pushed today), licensed MIT. It adds 65 tokens to every session and 463 once invoked, about $0.0003 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.

Related

Other skills, from other repositories

translate-skill

A project skill for translating mattpocock/skills content into Simplified Chinese. It preserves commands, names, file paths, code, links, and other behavior-critical details.

vinvcn/addyosmani-agent-skills-zh · 91 tokens

context-engineering

Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.

addyosmani/agent-skills · 43 tokens

doubt-driven-development

Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when you want every assumption cross-examined before proceeding, when stress-testing a plan for hidden failure modes, when correctness matters more than speed, when working in unfamiliar code, when stakes are high…

addyosmani/agent-skills · 96 tokens

performance-optimization

Optimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.

addyosmani/agent-skills · 59 tokens

test-driven-development

Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality. Use when asked to add tests to a function, fix a bug…

addyosmani/agent-skills · 92 tokens

ci-cd-and-automation

Automates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment strategies.

addyosmani/agent-skills · 45 tokens