iOS 27.3 'new features' are reportedly just agent skills written as .md files for Siri

jonathan_wilke · x · 2026-11-04

According to Viticci, the 'new features' in iOS 27.3's Siri are literally agent skills in .md files: one skill teaches Siri to select and insert text in Notes, another tells it which file types the Files app supports, and many examples spell out what not to do — a sign of an older underlying model. Apple appears to be building Siri on agent skills, echoing Anthropic's Skills mechanism.

Related event: Apple's Siri AI framework adopts Markdown-based Agent Skills(2 posts)→

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