{"rewrite":{"id":"r_ecb4a4ea3e4ad9097f276632","clusterId":"c_072cd07d0f1d4285e3952242","slug":"meta-s-muse-ai-builds-per-person-profiles-system-prompt-leaked","model":"deepseek-v4-1-flash","headline":"Meta's Muse AI Builds Per-Person Profiles, System Prompt Leaked","summary":"A security researcher extracted the system prompt and operating instructions from Meta's Muse AI agent, revealing a design that builds per-person pages for everyone in a user's life. Karan Joshi, an independent AI safety and security researcher, used Muse's normal chat screen to have the agent copy and share its internal files, then gave the material to WIRED. The instructions reportedly tell Muse to create a page for every person the user knows, including family, partners, friends, colleagues, and people the user follows. The update process runs hourly. Each page is meant to accumulate over time under headings such as Facts, History, The relationship, In common, Open threads, and Strengthening. Muse also carries an instruction to use only information with a basis, and that fabricating information is worse than leaving a section blank. Meta announced Muse on September 8, 2026, as an agent that can browse the web, send email, and book travel. Meta spokesperson Daniel Roberts said agents need background information about the user and the people around them to reach the user's goals.","whyItMatters":"The extracted instructions describe relationship scoring and suggested actions, which is a different design from the task-by-task agent Meta described at launch and gives critics the internal text they can now compare against Meta's public framing.","webCardHtml":"\u003cp\u003eKaran Joshi extracted the material through Muse\u0026#39;s ordinary chat screen, having the agent copy and share its own internal files, then handed the content to WIRED. The instructions go beyond flat profiles. Person pages are built to fill in over time with recurring topics such as moving house, savings goals set together, birthdays and anniversaries, past trips, resolved arguments, and recent milestones.\u003c/p\u003e\n\u003cp\u003eThe headings break down into distinct jobs. \u0026#34;The relationship\u0026#34; records closeness, what kind of connection the relationship rests on, and how the user usually interacts with that person. \u0026#34;Strengthening\u0026#34; holds suggested actions to improve the relationship, including reasons to call, dates to remember, and topics to raise again later.\u003c/p\u003e\n\u003cp\u003eMeta spokesperson Daniel Roberts defended the design. He said Muse can remember that \u0026#34;the person who sent an invoice was the plumber previously hired to do bathroom work,\u0026#34; or \u0026#34;the flowers the spouse said they liked.\u0026#34;\u003c/p\u003e\n\u003cp\u003eKaran Joshi is described as an independent AI safety and security researcher.\u003c/p\u003e","blueskyPost":"Muse's hourly update cycle means each person page compounds from whatever the agent previously logged. Once an entry lands under Strengthening, the user has no visible way to contest it.","twitterPost":"Karan Joshi pulled Muse's instructions by asking the agent to hand over its own files. That path will not close with a model update.","threadsPost":"Meta's own safeguard is the part worth watching: Muse is told that fabricating information is worse than leaving a section blank. That rule presumes someone audits the output, while the pages update hourly and accumulate under headings like The relationship and Open threads.","newsletterBlurb":"A security researcher has extracted the system prompt from Meta's Muse agent and handed it to WIRED. The instructions reportedly describe per-person pages for family, friends, colleagues, and people the user follows, refreshed hourly and organized under headings that include The relationship and Strengthening. Meta spokesperson Daniel Roberts says agents need background on the people around the user to do the job.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261005-meta-muse-create-profile/\",\"title\":\"Meta's AI 'Muse' Is Designed to Create 'Person Pages' for Each Family Member, Friend, and Colleague, Even Recording Relationships; Security Researcher Extracts System Prompt\"},{\"source\":\"GameBusiness.jp\",\"url\":\"https://www.gamebusiness.jp/article/2026/10/06/28226.html\",\"title\":\"Meta releases Muse Gadgets for using AI agent Muse on M5Stack and Raspberry Pi - Free distribution of smart home appliance hub, SDK open source\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":14223,"outputTokens":1232,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1791241625,"createdAt":"2026-10-05T23:03:17.000Z","publishedAt":"2026-10-05T23:06:05.000Z","updatedAt":"2026-10-05T23:06:05.000Z"},"cluster":{"id":"c_072cd07d0f1d4285e3952242","canonicalTitle":"MetaのAI「Muse」は家族・友人・同僚ごとの「人物ページ」を作成して人間関係まで記録する設計、セキュリティ研究者がシステムプロンプトを抽出","representativeArticleId":"a_1460a8a4db81abeed50ef08e","sourceCount":2,"writtenSourceCount":2,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-05T04:01:00.000Z","lastSeenAt":"2026-10-05T22:30:03.000Z","updatedAt":"2026-10-05T23:06:06.000Z"},"attribution":[{"source":"GameBusiness.jp","url":"https://www.gamebusiness.jp/article/2026/10/06/28226.html","title":"Meta、AIエージェントMuseをM5Stackやラズパイで使うMuse Gadgets公開―スマート家電連携ハブを無料配布、SDKはオープンソース"},{"source":"GIGAZINE","url":"https://gigazine.net/news/20261005-meta-muse-create-profile/","title":"MetaのAI「Muse」は家族・友人・同僚ごとの「人物ページ」を作成して人間関係まで記録する設計、セキュリティ研究者がシステムプロンプトを抽出"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["Meta announced the AI agent Muse on September 8, 2026, and began offering it in the United States the same day.","Independent AI safety and security researcher Karan Joshi extracted Muse's system prompt and internal instructions using Muse's normal chat screen and provided the content to WIRED.","The extracted instructions reportedly include a directive to create a page for every person in the user's life and to run the person page update process every hour.","Person pages are designed to accumulate content under headings including Facts, History, The relationship, In common, Open threads, and Strengthening.","Meta spokesperson Daniel Roberts said AI agents need background information about the user and the people around them to achieve the user's goals."]}