feat(i18n): update Japanese translation

[shuuji3]

🔗 Linked issue

N/A

🧭 Context

There was a small error in the download chart alt text transtation where there are two "。" (period equivalent in Japanese) in the middle of the alt text.

📚 Description

• Fixed the above issue and improve the alt text translation (used more common terminology in the math)
• Plus, added a new missing translation.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Jun 15, 2026 2:35pm

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Jun 15, 2026 2:35pm
npmx-lunaria	Ignored		Jun 15, 2026 2:35pm

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request expands Japanese localisation across multiple UI features in a single file. It adds new navigation shortcuts and command palette entries; introduces a complete new noodles section; extends package stats, replacement, and card metadata translations; revises trend chart terminology and copy; and enhances compare UI with GitHub forks facet and diff-handling strings.

Changes

Japanese Localisation Updates

Layer / File(s)	Summary
Navigation shortcuts and command palette entries i18n/locales/ja-JP.json	New keyboard shortcut labels for opening the timeline and showing stats; command palette entries extended with changelog and stats keys under the package navigation group.
Noodles feature translation section i18n/locales/ja-JP.json	New top-level noodles translation object introduced with complete UI strings including metadata, carousel/lens navigation, and missing-item messaging.
Package stats and card metadata translations i18n/locales/ja-JP.json	Package replacement copy extended with simple and documented keys; new package.stats labels for main_information, trends, and version_distribution; stats link navigation entry added; package.card.version translation introduced for version label display.
Trend chart terminology and copy revision i18n/locales/ja-JP.json	Trend strength descriptors updated from "強い"/"弱い" (strong/weak) to "上昇"/"下降" (ascending/descending); analysis and general_description alt-text strings refined with adjusted wording and watermark placement.
Compare UI facet and diff handling strings i18n/locales/ja-JP.json	GitHub forks facet added under compare.facets.items.githubForks with label and description; new diff UI translation strings introduced for diff_truncated, large_diff_mode, and large_diff_options_disabled.

Possibly related PRs

• npmx-dev/npmx.dev#2745: Both PRs modify i18n/locales/ja-JP.json with overlapping updates to trend chart copy and compare UI diff-related strings.

Suggested reviewers

• graphieros

---

Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The PR title 'feat(i18n): update Japanese translation' is vague and overly broad, using generic language that does not clearly convey the specific nature of the changes.	Consider using a more specific title that highlights the main changes, such as 'feat(i18n): add missing Japanese translations and fix chart alt text' to better reflect the scope of additions and fixes.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description is related to the changeset as it addresses Japanese translation improvements and mentions fixing chart alt text and adding missing translations, aligning with the actual changes made to the ja-JP.json file.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch shuuji3/fix/improve-japanese-translation

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[github-actions]

Lunaria Status Overview

🌕 This pull request will trigger status changes.

Learn more

By default, every PR changing files present in the Lunaria configuration's files property will be considered and trigger status changes accordingly.

You can change this by adding one of the keywords present in the ignoreKeywords property in your Lunaria configuration file in the PR's title (ignoring all files) or by including a tracker directive in the merged commit's description.

Tracked Files

File	Note
i18n/locales/ja-JP.json	Localization changed, will be marked as complete. 🔄️

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[trueberryless]

Do you think you could also add the other 36 missing translations keys?

• shortcuts.open_stats
• command_palette.package.stats
• noodles.title
• noodles.meta_description
• noodles.latest
• noodles.what_is
• noodles.what_is_body
• noodles.empty
• noodles.load_more
• noodles.dates
• noodles.shipped_in
• noodles.credits
• noodles.learn_more
• noodles.carousel_prev
• noodles.carousel_next
• noodles.carousel_dots
• noodles.carousel_jump
• noodles.lens_label
• noodles.lens_slide
• noodles.lens_slide_position
• noodles.back_to_archive
• noodles.missing.title
• noodles.missing.body
• package.replacement.simple
• package.replacement.documented
• package.stats.main_information
• package.stats.trends
• package.stats.version_distribution
• package.links.stats
• package.trends.embedding.chart
• package.trends.embedding.copy_url
• package.trends.embedding.preview
• package.trends.embedding.tip
• compare.diff_truncated

(package.card.version was already added in this PR)

[shuuji3]

Oh, I tried https://npmx.dev/translation-status for the first time and I thought there is only one missing key, but this page actually reflects the only stable version? 🤔

Anyway, I'm going to translate them all soon today.

[trueberryless]

Oh, I tried https://npmx.dev/translation-status for the first time and I thought there is only one missing key, but this page actually reflects the only stable version? 🤔

Yeah, unfortunately the current state from main doesn't load under https://main.npmx.dev/translation-status, so you have to work with our i18n commands to be sure...

I ran node scripts/compare-translations.ts ja-JP to get the output 👍

[graphieros]

^^

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@i18n/locales/ja-JP.json`:
- Around line 158-159: The "changelog" label in the locale file is left in
English while adjacent command labels like "stats" are translated to Japanese
for consistency. Translate the value of the "changelog" key from "Changelog" to
its Japanese equivalent (suggested: "変更履歴") to maintain consistent localization
throughout the menu.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 138de581-cac4-479e-8c9c-ce686ce5853a

📥 Commits

Reviewing files that changed from the base of the PR and between 7838bec and 3df327f.

📒 Files selected for processing (1)

• i18n/locales/ja-JP.json

[trueberryless]

@coderabbitai full review please

[coderabbitai]

@trueberryless Sure! I'll kick off a full review of the PR right away.

✅ Action performed

Full review finished.

[trueberryless]

Thank you very much for taking the time to also add the additional translation strings. Much appreciated 💚

As a non-native speaker, I confirm that all translation strings are hereby up-to-date in Japanese 🙌

[shuuji3]

Thanks! I saw the attempt to fix https://main.npmx.dev/translation-status at #2860. Once we found the solution, I think we can show the same latest translation status on both URL to avoid confusion.