Ryunosuke Nagaya

Ryunosuke Nagaya

Building AI safety tools for everyone

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SafePrompt JP - SafePrompt JPは、AI送信前に氏名・住所・電話番号を自動検知し匿名化するChrome拡張です。

AI送信前に個人情報・機密情報を自動検知し、匿名化・置換するツール

SafePrompt Guardian - Protect kids from sharing personal info on AI & social media

SafePrompt Guardian is a free Chrome extension that warns children before they send personal info or dangerous content on ChatGPT, Claude, Gemini, X, Discord and more. It detects names, addresses, phone numbers, school names, grooming patterns, and exploitation language. 100% local processing - no data leaves the browser. Features child-friendly warnings, safe rephrasing suggestions, 3-level risk classification, and parent mode with passcode.
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