iOS 27 moves Safari extensions from a developer artifact to a text box in the page menu

The entry point tells you more than the feature list. Create an Extension lives in the Safari settings menu reached from the left of the URL bar ^[6], the same menu that holds Notify Me ^[9]. That is the per-page menu: the place a user goes to change how one site behaves is now also where they author the thing that changes it ^[4].

What the MacRumors guide covers is the prompt box and Apple's suggested prompts, sorted into Boost Productivity, Improve Focus, Get Creative, and Develop and Design ^[7]. What it does not cover is what an extension developer would ask first: who reviews the generated code, whether it is signed, what it is permitted to touch, whether it can be handed to another person, and how long it survives ^[5].

Apple's eight sample prompts point in one direction. Five of them alter the page in front of you: force a 14pt minimum font size, rewrite the text as pirate speak, restyle a site in 1990s colors and type, overlay element dimensions on tap, or open a design mode for editing the contents ^[8][1]. The other three sit beside the page, copying a citation, running a three-minute focus timer, drawing a flower on each new tab ^[8][1]. Apple is teaching users that the rendered page is editable material.

Notify Me is where the pitch and the mechanism part company. Apple's own examples are concert tickets going on sale and a product returning to stock ^[10], and the ceiling is one check per day at a time you choose, with weekly and monthly as the slower options ^[11]. One check a day leaves up to 24 hours between looks ^[2]. That is a restock watcher with a ticket-sale headline on it.

The Passwords feature shows the same machinery with its consequences easier to see: Apple Intelligence drives Safari to an eligible site, signs in, and replaces a flagged weak or compromised password on a tap ^[12]. Site operators will be handling credential rotations performed by a browser acting for the user, and the guide describes no signal to the site that this is what happened ^[5].

A caveat about the evidence: the two source blocks supplied here are the same MacRumors guide ^[3]. This is one publisher's account of a beta, and the parts that decide whether prompt-built extensions matter are the parts nobody has written down yet.