Cursor 3.11 gives every tangent a durable side chat, makes old conversations searchable, and hands cloud agents new hooks. The margin is an interface now.
TODAY'S ART DIRECTION
An annotated manuscript read by lamplight, red ink working the margins.
Marginalia is the oldest two-track layout on record: a main text that keeps its measure, and a margin where commentary, corrections, and tangents live without breaking the line. This page borrows that structure from the day's lead story. The reading column carries the news; a rail of red ink notes rides beside it, each one tied to a dagger mark in the text, the way a side chat ties back to its main conversation.
Type /side or /btw and Cursor spins the tangent into a durable, full agent conversation you can revisit later or at-mention to pull its context back into the main thread.† The same release adds transcript search across every past conversation and new cloud agent hooks, including beforeSubmitPrompt, afterAgentThought, and subagentStart, for observing and steering the conversation itself.
Each task gets an isolated cloud devbox with a live view, triggered from GitHub, Slack, Linear, or the CLI, and billed per second against your own Claude Code, Codex, or OpenCode subscription. It surfaced on Show HN this morning.
† The main text stays calm because the margin is doing the thinking. †
A working guide to the stretch every project crosses and few writeups name: extracting visual cues from a positioning statement, setting mood direction, and presenting the first concept without losing the room.§
Decagon wired its Deco design system into coding agents through Figma's MCP server, so generated code lands on real components instead of lookalikes; the team reports tens of thousands of component inserts in thirty days.‡ Figma Make carries the throwaway prototypes before engineering commits.
In a Stack Overflow interview, the head of Microsoft's AI Core argues that teams need an end to end system for building, deploying, and evaluating agents, and that reliability and correctness matter more as the models grow more autonomous.
BORROW THIS PATTERN
Reserve a narrow second column beside your reading column and let short secondary notes ride there: a caveat, a number worth pulling out, a pointer to related work. Tie each note to a dagger or asterisk in the running text so the reader can find the seam, and collapse the rail into small inline note cards below roughly 1000px. It suits docs, long case studies, annotated changelogs, and any page where commentary keeps interrupting the prose.
The rail earns its place only under three conditions: the notes are real content written for the margin, never decoration; one note per stretch of text, not a second column of everything; and the main column keeps its full measure, because the margin serves the reading rather than competing with it.
Recreate tonight's annotated night study as a working longform feature page.
Create a longform annotated reading page styled as a scholar's night study. Structure: a full-bleed hero built on a wide dark illustration of an open annotated manuscript under lamplight, with a dark gradient scrim and an oversized two-line serif headline set directly on the image, the first line in warm cream and the second in vermilion, a short cream deck beneath it, and a vermilion bookmark ribbon hanging from the top edge as the only call to action, linking down the page; below the hero a three-cell imprint strip of mono metadata (edition number, date, reading time) separated by hairline rules; then a cream bookplate card framed with a double rule, holding the style name and a short glossary note, floating on the deep ink-blue page ground; the main body is a single reading column with a right margin rail, each chapter opened by a small brass roman folio numeral and a hairline rule, and one short red-ink margin note per chapter sitting in the rail, tied to a dagger mark in the running text; one centered italic pullquote between chapters; close with a bordered pattern note, a field note, a numbered source list, and an imprint colophon. Palette: deep ink blue #131B29, warm cream #EDE2CA, vermilion ink #E0593C, brass #C9A35C, cool slate #8FA3BA. Type: Newsreader for display, Spectral for body, IBM Plex Mono for labels. Keep body text at 19px or larger with line height at least 1.65, cream on ink at WCAG AA contrast, margin notes never below 15px, no pill radii, no accent left-border stripes, no neon or glow, no gradient text, real hover and focus states near 150ms, and no readable words inside the illustration.
For the minutes when the main thread is busy and the side chat has gone quiet, someone built a meditative waiting room for exactly that stretch of the workday. We kept it open longer than planned.
Tonight's reading list, in the order the notes were made