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TLDR Design

TLDR DESIGN 2026-09-10

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02OPINIONS & TUTORIALS

PRINCIPLES FOR BUILDING A DESIGN ENGINEERING PRACTICE

Six principles set the quality bar for a design engineering practice being built at DuckDuckGo, where the team is still small and hiring its second member. They cover understanding problems before making, owning the experience past handoff, making trust effortless, reducing scope rather than quality, finishing every state, and making craft repeatable. Moving fast by making less, better is the one expected to be tested most often.

karlkoch.me3 min read

DESIGNING PRODUCT SIMPLICITY FOR THE AGENTIC AI ERA

Microsoft's CoreAI portals all sat on Fluent 2 and still felt disjointed, because shared components did not prevent teams from inventing different navigation, layouts, and flows. The CoreAI Design System, forked from Foundry's work, ships guidance through both a Figma library and an experimental MCP server so coding agents can consume it too.

commandline.microsoft.com11 min read

SOME PEOPLE ARE WORRIED APPLE'S FOLDING IPHONE DESIGN COULD PRESENT A BRAND NEW HEALTH RISK

Rumors suggest Apple's upcoming foldable iPhone will be noticeably heavier than a standard iPhone, prompting concerns from a physical therapist that the added weight and grip could increase thumb and hand strain during prolonged use. Similar complaints have already been reported by some owners of existing foldable phones, though the risk is mainly associated with repetitive, extended use. Experts recommend taking breaks every 30–45 minutes, stretching your hands, and putting the phone down regularly to reduce fatigue and injury.

creativebloq.com1 min read

03LAUNCHES & TOOLS

DESIGN SYSTEMS FOR CODING AGENTS

Drop the design system into any codebase and your coding agent instantly knows how to build consistent, polished interfaces.

uiverse.ioTool

SKELETON SCREENS FOR YOUR UI

boneyard snapshots your real UI and captures a flat list of skeleton "bones" — positioned, sized rectangles that mirror the page exactly.

boneyard.vercel.appTool

A COMMENTS SECTION FOR ANY PAGE

cmmnts is a lightweight comment section and comments library for any website. Add threaded comments, live updates, and moderation with one script tag.

cmmnts.inTool

04MISCELLANEOUS

YOUR AGENTS ARE ONLY AS GOOD AS YOUR DATA CONTEXT

Agents get only data points, so a sales spike from a limited-time promotion reads to them as a lasting trend worth producing more stock for. A semantic layer supplies the missing translation, defining what each column and event means in the words teams actually use in Slack and meetings. Amplitude's own layer took its agent to correct answers 80 to 90 percent of the time, with custom instructions closing the rest.

amplitude.com9 min read

ACCORDION ICONS: WHICH ONES WORK BEST?

NN/g research finds real differences between carets, arrows, and plus icons on accordions, with the caret the safest choice and the most tapped. With no icon at all, users expect the item to open a new page. Split menus, where label and icon trigger different actions, cause the most mistakes and are best avoided.

smart-interface-design-patterns.com6 min read

RAGGED EDGE'S REBRAND FOR FINANCIAL APP TABBY TAKES A PLAYFUL APPROACH

Tabby has unveiled a new brand identity by Ragged Edge alongside the launch of Tabby Cash, replacing typical fintech visuals with hand-drawn characters, custom bilingual typography, and authentic photography to emphasize financial confidence and approachability. The redesign is built around the idea of helping users take control of their money, using playful visual elements and motion to make everyday financial tasks feel more engaging without sacrificing clarity. After debuting across the app, website, and digital channels, the refreshed identity is now expanding into physical advertising across the UAE.

designweek.co.uk2 min read