A localization workflow for finding user-facing text, managing translations, checking locale coverage, and preparing an app for multiple languages and regions.

It scans and extracts strings, validates translations, tests right-to-left layouts, supports voiceover localization, freezes text changes, and reports coverage.

It addresses hardcoded text, incomplete translations, right-to-left layout issues, and last-minute string changes before release.

localize — Skill for Claude Code by cenconq25/claude-code-app-studio

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 cenconq25/claude-code-app-studio --skill localize

Clone the repo

git clone --depth 1 https://github.com/cenconq25/claude-code-app-studio

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/localize/github.svg)](https://agentmods.dev/skills/cenconq25/claude-code-app-studio/localize)

Your own site

<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/localize"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/localize/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/localize"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/localize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,135 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.

Model	Per session	Once invoked
Fable 5.1	$0.00040	$0.02135
Opus 5.5	$0.00016	$0.00854
Sonnet 5.5	$0.00008	$0.00427
Haiku 4.5	$0.00004	$0.00214

Measured 1mo ago against content hash 487b787b44f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

localize 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.

.claude/skills/localize/SKILL.md · 269 lines

How it starts

The opening of the file, as written. The whole thing — 269 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Localize

Localization is treated as a recurring pipeline, not a one-time chore. This skill has five modes, each runnable independently. Together they take an app from "English-only with hardcoded strings" through to "fully translated, frozen for release, and verified on device".

Phase 1: Pick the Mode

Parse the argument:

--scan (default if omitted) — find hardcoded user-facing strings.
--extract — move identified strings into the string table.
--validate — verify completeness and quality of existing translations.
--freeze — enforce the string-freeze policy ahead of release.
--report — generate a coverage report.

Read project context:

.claude/docs/technical-preferences.md — framework, target locales.
Existing string tables — locations vary by stack:
- RN: src/locales/[lang].json (typical for i18next, react-intl, expo-localization).
- Flutter: lib/l10n/intl_[lang].arb, app_localizations.dart.
- iOS native: *.lproj/Localizable.strings, Localizable.stringsdict.
- Android native: res/values-[lang]/strings.xml.

If target locales are unset, prompt the user: which markets is the app launching in?

Phase 2: Scan Mode

Find every user-facing string that is not pulled from the table.

Per stack, the grep patterns are different:

RN (i18next): match >{[^{]*[A-Za-z][^}]*}< outside t() calls. Also match raw string literals passed as <Text> children.
Flutter: match Text('...') and Text("...") outside of test files.
iOS Swift: match Text("..."), Label("..."), plain string literals passed to setTitle, setText. Cross-reference with NSLocalizedString.
Android Kotlin: match Text("...") (Compose), setText("..."), hardcoded strings in findViewById. Cross-reference getString(R.string.*) calls.

Filter false positives:

Logging calls (console.log, print, os_log, Log.d).
Test files (tests/, __tests__, _test.dart, *Tests.swift).
Constants for keys, identifiers, URLs, deep-link routes.
Developer-facing diagnostic messages.

Read the full file on GitHub · 269 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.

1mo ago First seen · 269 lines · 40 tokens per session scan A 487b787b44f9

Subscribe to this mod's changes

localize is a skill published in the GitHub repository cenconq25/claude-code-app-studio (42 stars, last pushed 5mo ago), licensed MIT. It adds 40 tokens to every session and 2,135 once invoked, about $0.0002 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 2026-09-03.

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