Rill Browser

The shortcut is what turns a normal browser into a browser with a coding agent. Press ⌘E on any page and a prompt opens with the page attached, including its title, address, and your selection or the first part of the text. You type what you want in plain language, and the request goes to Claude Code or Codex with that context already in hand. Answers open beside the page instead of replacing it.

Rill reads the session history of your coding tools and builds a map of the projects you work in. When you send a request, it guesses which project the work belongs to based on the page and the wording. A release note about a library lands in the repo that uses it; a table row you clicked goes to the charts project. You can override the choice before the agent starts.

Agents run in tabs of their own, behind the one you're reading. In a project, an agent browses without your logins and only clicks or types when you allow it, which keeps a stray instruction from acting as you. You can take over its tab at any point, and finished work is marked Done wherever it happened.

Some requests don't belong to a project. Ask for a flight, a hotel, or a product and Rill runs the task on the web with your signed-in sessions, in a tab you can watch. It is told to stop before the step that pays, orders, sends, posts, or deletes unless you clearly said to go through with it, and it cannot type into password, card, or one-time-code fields. That boundary is the difference between useful agentic browsing and handing an assistant a blank cheque.

Rill records where you went, what you asked for, and what got done, then groups visits into day summaries you can read later. Search works two ways: exact words stay on your Mac, while a description like "the page with the green pricing table" goes to a read-only agent that searches your local library. History and page text are stored as files on your disk, for as long as you choose.

Tabs are grouped by what you were doing, so a research session and a debugging session don't blend into one long strip. A project view shows every project your agents have touched on a single map, with finished work marked and recent activity visible. Both the grouping and the day summaries can be switched off in Settings if you would rather keep the browser plain.