What is appstore-metadata-localizer?

A tool for translating and adapting Apple App Store listing text for different languages and regions. It covers names, subtitles, keywords, descriptions, update text, promotional text, and privacy text.

Use it to download existing App Store text, prepare localized versions, check their length, request approval, and upload the localizations.

It helps avoid manually adapting each store field and catches text that exceeds Apple's field limits before submission.

appstore-metadata-localizer — Skill by Xopoko/build-swift-apps

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 Xopoko/build-swift-apps --skill appstore-metadata-localizer

Clone the repo

git clone --depth 1 https://github.com/Xopoko/build-swift-apps

Made for: Claude Code, Codex.

Or install build-swift-apps, the plugin that ships this one along with the rest of its 61 skills, 3 commands, 3 MCP servers.

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/xopoko/build-swift-apps/appstore-metadata-localizer/github.svg)](https://agentmods.dev/skills/xopoko/build-swift-apps/appstore-metadata-localizer)

Your own site

<a href="https://agentmods.dev/skills/xopoko/build-swift-apps/appstore-metadata-localizer"><img src="https://agentmods.dev/badge/skills/xopoko/build-swift-apps/appstore-metadata-localizer/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/xopoko/build-swift-apps/appstore-metadata-localizer"><img src="https://agentmods.dev/badge/skills/xopoko/build-swift-apps/appstore-metadata-localizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 483 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.

Model	Per session	Once invoked
Fable 5.1	$0.00052	$0.00483
Opus 5.5	$0.00021	$0.00193
Sonnet 5.5	$0.00010	$0.00097
Haiku 4.5	$0.00005	$0.00048

Measured 2mo ago against content hash 3833bd2714d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

appstore-metadata-localizer 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/metadata_localization_lint.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/appstore-metadata-localizer/SKILL.md · 39 lines

What it actually says

App Store Metadata Localizer

Pull source metadata, translate/adapt it, validate limits, get approval, then upload version or app-info localizations.

Use appstore-metadata-sync for canonical JSON field edits that are not translation-first. Use appstore-release-notes-writer when the requested artifact is only What's New or promotional text. Use appstore-subscription-localizer for subscription, group, or IAP display names.

Local Lint Helper

After writing or editing localized .strings or metadata JSON, run the bundled limit checker:

python3 "$PLUGIN_ROOT/skills/appstore-metadata-localizer/scripts/metadata_localization_lint.py" \
  "./localizations" "./app-info-localizations" --recursive

The helper checks App Store field limits for name, subtitle, keywords, description, whatsNew, and promotionalText. It does not translate, rewrite files, upload, or call ASC. Pass --json for machine-readable output.

Workflow

Confirm current asc localizations flags, then resolve app, version, and app-info IDs deterministically.
Download source and existing localizations; if download is unavailable, inspect with asc localizations list.
Translate one target locale at a time from the source locale. Preserve formatting and meaning; do not translate from memory.
Adapt keywords for native App Store search behavior instead of literal translation.
Run metadata_localization_lint.py, then show a field-by-locale summary table and wait for approval.
Upload only after approval, then verify with the matching asc localizations list command.

Translation Rules

Use formal, professional App Store register. Keep the app name unchanged unless the user explicitly asks to translate it. For updates, download current localization, show a diff, get approval, then upload.

References

references/appstore-metadata-localizer.md for supported locales, detailed ASC commands, field scope, .strings format, and translation rules.

Files

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.

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.

2mo ago First seen · 39 lines · 52 tokens per session scan A 3833bd2714d7

Subscribe to this mod's changes

appstore-metadata-localizer is a skill published in the GitHub repository Xopoko/build-swift-apps (45 stars, last pushed 2mo ago), licensed MIT. It adds 52 tokens to every session and 483 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 2026-08-30.

Claude Code Localization Mobile agent-skills ai-agents appkit codex cursor

appstore-metadata-localizer next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
appstore-metadata-localizerXopoko/build-swift-apps	Skill	45	2mo ago	MIT	A	52	Claude Code, Codex
cometchat-i18ncometchat/cometchat-skills	Skill	162	22d ago	MIT	A	155	Claude Code
react-native-i18nmaikotrindade/awesome-react-native-skills	Skill	13	9d ago	GPL-3.0	A	53	Claude Code
sonic-localizeorbitalsonic/AndroidPilot	Skill	1	11d ago	none	A	0	Claude Code
sonicg-localizeorbitalsonic/AndroidPilot	Skill	1	11d ago	none	A	0	Claude Code, Codex
sonicc-localizeorbitalsonic/AndroidPilot	Skill	1	11d ago	none	A	0	Cursor
chinese-documentationjnMetaCode/superpowers-zh	Skill	8.5k	11d ago	MIT	A	62	Claude Code