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    🌐 Localization QA Auditor

    🌐 Localization QA Auditor

    by JustHandled Labs

    Run structural QA on your translation files across locales. Flags missing keys, placeholder mismatches ({name}, %s, {{var}}), strings left untranslated and identical to the source, length-overflow risk that breaks UI, terminology drift against a glossary, empty targets, and plural-category gaps. Works on JSON, gettext .po/.pot, and .properties. It checks form, not meaning, so you do not need to speak the target language to use it.

    Updated Jun 2026
    Security scanned
    Cursor

    $15

    Β· or 75 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Identify missing or mismatched interpolation placeholders across locales.
    • Detect keys present in the source locale but missing in target translations.
    • terminal automation included
    • Ready for Cursor
    • Instant install

    Sample input

    Check my locale files in /public/locales for placeholder mismatches and missing keys. Use en-US as the base.

    Sample output

    Localization Audit Results

    • Rule: Placeholder Mismatch (High)
    • File: /locales/es-ES.json
    • Line: 42
    • Evidence: Base has {{count}}, Spanish has {count}
    • Remediation: Update Spanish string to use double braces to match the i18next interpolator.

    About This Skill

    What it does

    The Localization QA Auditor is a developer-focused tool designed to catch structural and technical errors in translation files before they break your UI or crash your build. It performs high-speed, language-agnostic analysis of JSON, PO/POT, and .properties files to ensure your internationalization remains intact during localization cycles.

    Why use this skill

    Manually checking translation files for missing placeholders or accidentally deleted variables is error-prone and tedious. This skill automates the drudgery, identifying technical regressions that human translators often miss. Unlike generic AI prompting, this tool follows a specialized structural audit workflow that differentiates between the base locale and target translations to ensure strict parity.

    Supported tools

    • Format Support: JSON, PO, POT, and .properties files.
    • Detection types: Placeholder mismatches (e.g., {{name}} vs {name}), missing keys, and structural drift.
    • DevOps Ready: Provides clear severity levels and remediation guidance for CI/CD integration.

    The Output

    You will receive a structured report detailing the audit scope, detected rule violations, severity levels, and specific line-item evidence. Each finding includes direct remediation guidance to fix the broken string immediately.

    Use Cases

    • Identify missing or mismatched interpolation placeholders across locales.
    • Detect keys present in the source locale but missing in target translations.
    • Standardize structural integrity across JSON, PO, and properties files.
    • Generate remediation guides for translation teams to fix technical errors.

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell

    File Scopes

    localization-qa-auditor/**
    **/locales/**/*.json
    **/i18n/**/*.json
    **/*.po
    **/*.pot
    **/*.properties

    Read-only. The base locale is auto-detected (prefers en) or set with --base. The glossary and the length-overflow threshold load from editable files in references/. It operates only on translation files; it does not scan source code. Reads no environment variables and rewrites nothing.

    Tags

    localization
    i18n
    qa-testing
    json-audit
    translation-mismatch

    Works with any agent that can read translation files and run a local Python script (Claude Code, Cursor, Codex CLI, and other SKILL.md-compatible agents). Standard library only, no install step. Read-only, and it makes no network calls.

    Creator

    JustHandled Labs

    JustHandled Labs creates focused agent skills and workflow packs for Claude, Codex, Cursor, and AI-assisted builders. Each tool is designed around a real repeatable task: cleaner commits, better PRs, stronger handoffs, safer repo hygiene, clearer documentation, and less copy-paste chaos. The goal is not generic AI productivity. The goal is specific workflows that are easier to run, review, and repeat. Maintained by H.J. Westerfield, with a background in communications, editing, project coordination, customer support, and practical AI systems. JustHandled Labs builds tools for people who want useful automation without theatrical complexity.

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