translate-i18n

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Fill missing i18n translations in the viewer source JSON. Run this after adding or modifying English or Chinese UI strings in claude_tap/viewer_i18n.json — it auto-translates to ja, ko, fr, ar, de, ru via OpenRouter.

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How to use this skill

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Source SKILL.md: https://github.com/liaohch3/claude-tap/blob/HEAD/.agents/skills/translate-i18n/SKILL.md

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Translate i18n

Automatically fill missing translations for the viewer's claude_tap/viewer_i18n.json source file. The script uses English and Chinese as source languages and translates to Japanese, Korean, French, Arabic, German, and Russian.

Prerequisites

OPENROUTER_API_KEY must be set in the environment (it is in the user's .zshrc)
Default model: google/gemini-2.5-flash

Workflow

1. Check what's missing (dry run)

Always preview first to confirm which keys need translation:

uv run python scripts/translate_i18n.py --dry-run

This parses claude_tap/viewer_i18n.json, finds keys present in both en and zh-CN but missing in other languages, and lists them without modifying the file.

2. Run the translation

uv run python scripts/translate_i18n.py

The script calls OpenRouter once per target language, then writes the translations back into viewer_i18n.json in-place.

3. Verify the result

After translation, run the formatter and tests to make sure nothing broke:

uv run python -m json.tool claude_tap/viewer_i18n.json >/dev/null
uv run pytest tests/test_translate_i18n.py -v

Options

Flag	Purpose
`--dry-run`	Show missing keys only, no file changes
`--model MODEL`	Override the OpenRouter model (default: `google/gemini-2.5-flash`)
`--target {viewer,cli}`	Translation target preset (default: `viewer`)
`--file PATH`	Override target file path
`--object-name NAME`	Override the legacy JS/Python i18n object name

How it works

The script:

Loads the viewer i18n JSON source file
Validates that every language block is a string-to-string map
Identifies keys present in en + zh-CN but missing in target languages
Sends a structured prompt to OpenRouter with existing translations for consistency
Normalizes fullwidth punctuation for CJK languages (matching zh-CN style)
Inserts new entries after the existing keys in each target language

Common scenarios

Added a new UI string: Add the key to both en and zh-CN blocks in claude_tap/viewer_i18n.json, then run this skill. The other 6 languages will be filled automatically.

Changed an existing string: The script only fills missing keys. To re-translate an existing key, first delete it from the target language blocks, then run the script.