A complete chat kit

Streaming Markdown and code, reasoning, tool calls, sources and citations, plans, versions, message actions, a composer with attachments, commands, mentions and a model picker, and a list of chats. Plug in any model as a stream of events.

You23:58

Search fires a request on every keystroke. How do I debounce it in React?

AI

Assistant

Debounce the value, not the handler, and cancel stale requests:

tsx

function useDebounced<T>(value: T, ms = 250) {
  const [debounced, setDebounced] = useState(value)
  useEffect(() => {
    const id = setTimeout(() => setDebounced(value), ms)
    return () => clearTimeout(id)
  }, [value, ms])
  return debounced
}

Then fetch from the debounced query with an AbortController, so a slow old response can't overwrite a newer one.

Approach	Requests while typing "react"
No debounce	5
Debounced 250 ms	1

Sources: 1 2

2 of 2

AI

Assistant

Here's how I'd roll it out:

Add useDebounced to hooks/Done
Abort stale requests in useSearchIn progress
Test fast typing on a slow networkTo doChrome DevTools, Slow 4G

Simulated assistant. Every part is a real component: markdown, code, reasoning, tool calls, sources, tasks, versions, attachments, commands and mentions.

pnpm dlx shadcn@latest add superzero11/uiset/chat superzero11/uiset/chat-response superzero11/uiset/chat-parts superzero11/uiset/chat-composer superzero11/uiset/chat-sidebar

Chat docs

A rich text editor agents can write in too

Headings, lists, to-dos, quotes, code and links, with a toolbar, Markdown as you type, "/" for blocks and "@" for people. Pasted pages come in clean; it saves Markdown or HTML. No editor library underneath.

Release 2.4

Sync is now twice as fast on large projects, and offline edits merge without asking.

Faster sync for projects over 10,000 files
Offline edits merge on reconnect
Conflicts show both versions side by side
A new --dry-run flag for imports

Before we ship

Update the migration guide
Record the demo
Tell support about the new flag

Upgrading from 2.2? Read the migration guide first.

npm install acme@2.4

399 / 2000 characters

Release 2.4

Sync is now twice as fast on large projects, and offline edits merge without asking.

Faster sync for projects over 10,000 files
Offline edits merge on reconnect
Conflicts show both versions side by side
A new --dry-run flag for imports

Before we ship

Update the migration guide
Record the demo
Tell support about the new flag

Upgrading from 2.2? Read the migration guide first.

npm install acme@2.4

pnpm dlx shadcn@latest add superzero11/uiset/rich-text

Rich text docs

A data grid that works like a spreadsheet

Ten thousand orders, rendered as you scroll. Sort, filter, group, pin, resize and reorder columns; select a block of cells, copy and paste with the system clipboard, edit in place, and export. Agents sort, filter and edit through UI SDK's bridge.

pnpm dlx shadcn@latest add superzero11/uiset/data-grid

Data grid docs

Charts you can read with the keyboard

Lines, bars, areas, scatter, heatmaps and part-to-whole bars, with colors checked for color blindness in every skin. Arrow through the data, pin a point, switch to a table, isolate a series. No chart library underneath.

pnpm dlx shadcn@latest add superzero11/uiset/line-chart superzero11/uiset/bar-chart superzero11/uiset/scatter-chart superzero11/uiset/heatmap superzero11/uiset/segmented-bar

Charts docs

A kanban board you can drive from the keyboard

Columns with limits, cards that move by drag or by keys, lanes, search, a card dialog and confirmed deletes. Every move is announced and can be undone.

Backlog

In progress

In review

Full: finish a card to add more.

Done

pnpm dlx shadcn@latest add superzero11/uiset/board

Board docs

Calendars that people and agents can edit

A week, a day, a month or a timeline of rooms. Draw, move and resize events with the pointer or the arrow keys; overlapping events share lanes; time zones stay right.

pnpm dlx shadcn@latest add superzero11/uiset/scheduler

Scheduler docs

A node editor with wires

Pan and zoom, drag nodes, connect ports, lasso a group, a minimap, and undo. Each node and port is reachable from the keyboard.

pnpm dlx shadcn@latest add superzero11/uiset/canvas

Canvas docs

The parts of a code editor

A file tree with version control marks, tabs, a code editor with syntax colors, a command palette, problems, an outline and a status bar, in resizable panes.

greeter

Files

src

lib

format.ts

greet.ts

config.ts

index.ts

package.json

README.md

import { greet } from "./lib/greet"
import { config } from "./config"

// TODO: read the name from the command line
const name = config.defaultName

console.log(greet(name))

import { greet } from "./lib/greet"
import { config } from "./config"

// TODO: read the name from the command line
const name = config.defaultName

console.log(greet(name))

mainLn 1, Col 1TypeScript

pnpm dlx shadcn@latest add superzero11/uiset/ide superzero11/uiset/ide-app

IDE docs

Phone patterns, done properly

Rows that swipe aside to actions, wheel pickers, bottom sheets and action sheets, pull to refresh, an app bar and a tab bar.

Inbox

Grace Hopper9:41Compiler notes for Friday
Ada Lovelace8:12The engine's second table
Linus PaulingYesterdayLab booking moved
Margaret HamiltonMonLaunch checklist, final
Left and Right show this row's actions; Escape hides them; Enter opens it.

pnpm dlx shadcn@latest add superzero11/uiset/mobile

Mobile docs

A terminal for the browser

ANSI colors kept readable in every skin, links, streaming output with progress lines, Tab completion, history, Ctrl+C and Ctrl+L.

Welcome. Type help for the commands; Tab completes, Up brings back the last one.

pnpm dlx shadcn@latest add superzero11/uiset/terminal

Terminal docs

Studio: a synth rack, with sound

Knobs, a fader, a level meter, a step sequencer and a patch bay, built from UI SDK behaviors. It plays real sound. Every control works with the keyboard, reads out to screen readers, and an agent can play it: try the prompts below.

Shown in the Base skin, like the rest of the page. See it in the Studio skin, which draws it as hardware.

Oscillator

Tune

Cutoff

Resonance

Envelope

Attack

Decay

LFO

Rate

Depth

Output

70

Sequencer

Play

Tempo

Drag a cable from an out jack to an in jack. With the keyboard, focus an out jack, press Enter, choose an input with the arrow keys and press Enter again. Double-click a knob to reset it.

Ask the agent

pnpm dlx shadcn@latest add superzero11/uiset/knob superzero11/uiset/patch-bay superzero11/uiset/fader superzero11/uiset/level-meter superzero11/uiset/step-sequencer

Studio docs

Kits

A complete chat kit

A rich text editor agents can write in too

Release 2.4

Before we ship

Release 2.4

Before we ship

A data grid that works like a spreadsheet

Charts you can read with the keyboard

A kanban board you can drive from the keyboard

Backlog

In progress

In review

Done

Calendars that people and agents can edit

A node editor with wires

The parts of a code editor

Files

Phone patterns, done properly

Inbox

A terminal for the browser

Studio: a synth rack, with sound

Oscillator

Filter

Envelope

LFO

Output

Sequencer

Ask the agent

A complete chat kit

A rich text editor agents can write in too

Release 2.4

Before we ship

Release 2.4

Before we ship

A data grid that works like a spreadsheet

Charts you can read with the keyboard

A kanban board you can drive from the keyboard

Backlog

In progress

In review

Done

Calendars that people and agents can edit

Nov 16 – Nov 22, 2026

A node editor with wires

The parts of a code editor

Files

Phone patterns, done properly

A terminal for the browser

Studio: a synth rack, with sound

Oscillator

Filter

Envelope

LFO

Output

Sequencer

Ask the agent