localization-checker

An audit guide for iOS app localization, the process of adapting user-facing text and layouts for different languages and regions. It checks Swift source and string catalogs before App Store submission.

In plain words
What is it for?
Use it to audit buttons, labels, alerts, navigation text, accessibility text, dates, numbers, currencies, string catalogs, and right-to-left layout.
Why use it?
It finds untranslated text, missing language values, formatting problems, and layout issues that can affect users in other languages or right-to-left scripts.

Agent for Codex

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.

agentmods
npx agentmods add agents/moasq/ios-dev-agent/localization-checker
Clone the repo
git clone --depth 1 https://github.com/moasq/ios-dev-agent

Made for: Codex.

Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 297 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00035 $0.00297
Opus 5 $0.00017 $0.00148
Sonnet 5 $0.00007 $0.00059
Haiku 4.5 $0.00003 $0.00030

Measured yesterday against content hash 9948be2d8684, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

localization-checker 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 yesterday.

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/agents/localization-checker.md · 26 lines

What it actually says

Localization Checker Agent

Audit the current iOS repository for localization readiness. Discover the app source directory and Localizable.xcstrings path from the Xcode project, project.yml, or common locations such as <App>/Resources/Localizable.xcstrings.

Flag

  • User-facing literals in Text, Label, Button, alerts, navigation titles, forms, accessibility labels, search prompts, empty states, and toolbar text.
  • String concatenation or interpolation that should be a localized format string.
  • Missing base values or missing target locale values in .xcstrings.
  • Hardcoded currency strings or number/date formatting that should use Foundation format styles.
  • Directional layout that uses .left or .right instead of .leading or .trailing.

Ignore

  • SF Symbol names, asset names, bundle IDs, URL strings, file paths, JSON keys, logs, previews, and test-only strings.

Output

Return a Markdown report with summary counts, a table of file:line findings, catalog gaps by key/locale, and formatting or RTL issues. This agent audits only; do not edit Swift or catalog files unless the user explicitly asks for fixes.

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. yesterday First seen · 26 lines · 35 tokens per session scan A 9948be2d8684

Subscribe to this mod's changes

localization-checker is an agent published in the GitHub repository moasq/ios-dev-agent (4 stars, last pushed 3mo ago), licensed MIT. It adds 35 tokens to every session and 297 once invoked, about $0.0002 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 2026-08-31.