Is Natural Japanese safe and trustworthy?

tashan scores Natural Japanese on public evidence — tashan score 49.0/100, it is currently active, note: a single primary maintainer (bus-factor risk). Audit scope: OSV advisories, install-time scripts, build provenance and declared permission surface. We do not review source code or execute the capability.

How do I install Natural Japanese?

Configure it from its source repository — it is a remote / registry server.

Who maintains Natural Japanese?

1 GitHub contributors, source: coji/natural-japanese.

‹ The Index

Natural Japanese

plugin

仕事の日本語文書を読みやすくわかりやすく書く・直すためのスキル。AI臭さの除去を工程の一部として組み込む。

Works with: Claude Code (native)
native: this artifact type is that client's own format

Category: Docs & Knowledge — see all ranked ›

Work: Copy editing · Copywriting

Who it is for: Writer / content · Marketer / growth

Install (Claude Code):

/plugin marketplace add coji/natural-japanese
/plugin install natural-japanese@natural-japanese

deep

“Corpus testing showed readability can't be thresholded; semantic.py marked experimental”

This grade is wrong ›

tashan score: 49.0
Instruction depth: 86.0 (deep — documents every tool, with worked examples, setup and a stated limitation)
Adoption: 1 repos
Upkeep: 57.0
Freshness: 83.0
Evidence coverage: 84% of the inputs this score can use — the rest are unknown, and the score is discounted for it
Health: active
GitHub stars: 123
Contributors: 1
License: MIT

Security audit

Not scanned yet. We audit npm-published capabilities for known advisories, install-time scripts and permission surface; this one has no npm package we can resolve, or has not reached the queue.

What changed recently

2026-08-05 the tashan score for natural-japanese fell to 55.0, from 62.0 Upkeep, freshness or adoption moved enough to change how this measures.

You are reading this because you came looking. tashan Pro gives tashan doctor the history behind it, so a run over your own config says which of YOURS moved.

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npx tashan-cli doctor

Reads the config already on your machine and names what is dead, deprecated or running code at install time. No account, nothing uploaded.

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We recorded 1 change to Natural Japanese in the last 45 days. Pro tells you on the day — for the servers in your own config, not the ones you thought to look up.

The whole series behind any row, back to the first day we measured it
The replacement, named — not just the news that something died
tashan doctor over your own config, on your own machine

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Show your score

Measured this well? Put the live badge in your README — it updates as the score does.

[![tashan](https://tashan.sh/badge/plugin-coji-natural-japanese-natural-japanese.svg)](https://tashan.sh/capability/plugin-coji-natural-japanese-natural-japanese.html)

source ↗ · plugin:coji/natural-japanese/natural-japanese

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Measured 2026-09-13 · scorer s5 · how · something wrong here?