desk-pet
A small animated pet above the prompt that reacts to what Claude is doing
What it does
- Draws a pane, a band above the prompt, toasts
- Adds /desk-pet
- Watches tool calls and can refuse them
- Hooks classic.Notification, classic.PermissionDenied, config.set, prompt.submit and 4 more
- Keeps its own state between turns
Good points
- No network calls
- Starts no processes
- Written in TypeScript
- Has a desktop-specific branch
Code to start from
Two kinds: a starter modscode writes from the design above, and the lines of the mod's own code that draw it.
Starter (register.tsx)
import type { Register } from 'claude-code'
// Drawn like desk-pet by isr431 (pane, band, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/isr431-desk-pet/
// Written by modscode from that reading, not copied from the mod: use it as you like.
// Each value below stands for one the mod works out at run time; put in your own.
export const register: Register = on => {
// the pane: open it with $.ui.open({ id: 'my-pane', title: "Desk Pet" })
on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
const { Box, Text, Button } = $.ui.resolve(e)
const name = '…'
const title = '…'
return (
<Box flexDirection="column">
<Text bold>
Pet
</Text>
<Box flexDirection="row" gap={1} marginBottom={1}>
<Button label={`${name}`} variant="primary" />
<Button label={`${name}`} variant="primary" />
<Button label={`${name}`} variant="primary" />
</Box>
<Text bold>
Position
</Text>
<Box flexDirection="row" gap={1}>
<Button label={`${title}`} variant="primary" />
<Button label={`${title}`} variant="primary" />
<Button label={`${title}`} variant="primary" />
</Box>
<Box flexDirection="row" gap={1} marginTop={1}>
<Text bold>
Sound
</Text>
<Button label="On" />
<Text dimColor>
a soft chime for needs input and turn finishes
</Text>
</Box>
<Box marginTop={1}>
<Text bold>
Reactions
</Text>
</Box>
<Box flexDirection="row" gap={1}>
<Button label={`● ${title}`} plain />
<Button label="preview" plain dimColor />
</Box>
<Box flexDirection="row" gap={1}>
<Button label={`● ${title}`} plain />
<Button label="preview" plain dimColor />
</Box>
<Box flexDirection="row" gap={1}>
<Button label={`● ${title}`} plain />
<Button label="preview" plain dimColor />
</Box>
<Box marginTop={1}>
<Text dimColor>
/desk-pet demo plays every reaction · /desk-pet show reopens the panel
</Text>
</Box>
</Box>
)
})
// the band above the prompt; what else goes there is drawn under it
on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
const { Box, Svg, Text, Button } = $.ui.resolve(e)
const svgFor = '…'
const caption = '…'
return (
<Box flexDirection="column">
<Box flexDirection="row" alignItems="center" gap={2} width="100%" borderStyle="round" paddingX={1} paddingY={1}>
<Svg source={`${svgFor}`} alt={`Axolotl: ${caption}`} isInteractive />
<Box flexDirection="column" flexGrow={1} gap={1}>
<Text bold>
Axolotl
</Text>
<Text>
{caption}
</Text>
</Box>
<Button label="Settings" plain dimColor />
</Box>
{await next(e)}
</Box>
)
})
on('session.start', async ($, e, next) => {
const reason = '…'
const deny = '…'
await $.ui.toast(`Desk Pet: the side panel can't show here yet (${reason}), so your pet sits above the prompt for now.`)
await $.ui.toast(`Desk Pet: ${deny}`)
return next(e)
})
}
The mod's own code
Shown under the mod's licence (MIT); its text is below. Keep the notice if you copy these lines.
hooks/register.tsx lines 718–802 · Pane
on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
const { Box, Button, Text } = $.ui.resolve(e)
// Each key is spelled out so a reader (and the directory's scanner) can
// see the pane only ever writes Desk Pet's own settings.
const keep = (field: string, value: string | boolean, write: () => Promise<ConfigSetResult>) =>
void save($, field, value, write).then(
deny => deny && $.ui.toast(`Desk Pet: ${deny}`),
(error: unknown) => $.ui.toast(`Desk Pet: couldn't save that setting (${error instanceof Error ? error.message : String(error)})`),
)
const setPet = (value: PetId) => keep('pet', value, () => $.config.set({ key: 'desk-pet.pet', value: value }))
const setPosition = (value: Position) => keep('position', value, () => $.config.set({ key: 'desk-pet.position', value: value }))
const setSound = (value: boolean) => keep('sound', value, () => $.config.set({ key: 'desk-pet.sound', value: value }))
const setReaction: Record<(typeof REACTIONS)[number]['field'], (value: boolean) => void> = {
react_turn_start: value => keep('react_turn_start', value, () => $.config.set({ key: 'desk-pet.react_turn_start', value: value })),
react_reading: value => keep('react_reading', value, () => $.config.set({ key: 'desk-pet.react_reading', value: value })),
react_editing: value => keep('react_editing', value, () => $.config.set({ key: 'desk-pet.react_editing', value: value })),
react_shell: value => keep('react_shell', value, () => $.config.set({ key: 'desk-pet.react_shell', value: value })),
react_web_search: value => keep('react_web_search', value, () => $.config.set({ key: 'desk-pet.react_web_search', value: value })),
react_tests_pass: value => keep('react_tests_pass', value, () => $.config.set({ key: 'desk-pet.react_tests_pass', value: value })),
react_tests_fail: value => keep('react_tests_fail', value, () => $.config.set({ key: 'desk-pet.react_tests_fail', value: value })),
react_long_run: value => keep('react_long_run', value, () => $.config.set({ key: 'desk-pet.react_long_run', value: value })),
react_needs_input: value => keep('react_needs_input', value, () => $.config.set({ key: 'desk-pet.react_needs_input', value: value })),
react_turn_finish: value => keep('react_turn_finish', value, () => $.config.set({ key: 'desk-pet.react_turn_finish', value: value })),
react_compaction: value => keep('react_compaction', value, () => $.config.set({ key: 'desk-pet.react_compaction', value: value })),
react_idle: value => keep('react_idle', value, () => $.config.set({ key: 'desk-pet.react_idle', value: value })),
}
return (
<Box flexDirection="column">
<Text bold>Pet</Text>
<Box flexDirection="row" gap={1} marginBottom={1}>
{PET_IDS.map(id => (
<Button
key={`pet-${id}`}
label={PETS[id].name}
variant={id === pet ? 'primary' : 'secondary'}
onPress={() => setPet(id)}
/>
))}
</Box>
<Text bold>Position</Text>
<Box flexDirection="row" gap={1}>
{POSITIONS.map(one => (
<Button
key={`position-${one.id}`}
label={one.title}
variant={one.id === position ? 'primary' : 'secondary'}
onPress={() => setPosition(one.id)}
/>
))}
</Box>
<Box flexDirection="row" gap={1} marginTop={1}>
<Text bold>Sound</Text>
<Button key="sound" label={isSoundOn ? 'On' : 'Off'} onPress={() => setSound(!isSoundOn)} />
<Text dimColor>a soft chime for needs input and turn finishes</Text>
</Box>
<Box marginTop={1}>
<Text bold>Reactions</Text>
</Box>
{REACTIONS.map(one => (
<Box key={`row-${one.field}`} flexDirection="row" gap={1}>
<Button
key={one.field}
label={`${isOn(one.kind) ? '●' : '○'} ${one.title}`}
plain
dimColor={!isOn(one.kind)}
onPress={() => setReaction[one.field](!isOn(one.kind))}
/>
{one.kind !== 'idle' && (
<Button
key={`preview-${one.kind}`}
label="preview"
plain
dimColor
onPress={() => void $.clock.now().then(now => preview(one.kind, now))}
/>
)}
</Box>
))}
<Box marginTop={1}>
<Text dimColor>/desk-pet demo plays every reaction · /desk-pet show reopens the panel</Text>
</Box>
</Box>
)
})hooks/register.tsx lines 673–716 · Band
on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
const isCard = position === 'above' || (position === 'panel' && isPaneWaiting)
if (!isCard || e.props.hasSurvey) return next(e)
const show = await read($, shown)
const caption = captionFor(show)
if (e.surface === 'terminal') {
const { Box, Raster, Text } = $.ui.resolve(e)
const now = await $.clock.now()
const index = frameAt(animFor(show), now - show.startedAt)
site = { requestId: e.requestId, animKey: animKey(show), frame: index }
const hasRoom = e.props.bodyColumns >= RASTER_COLUMNS + 24
return (
<Box flexDirection="row" alignItems="center" gap={2}>
<Raster key={RASTER_KEY} columns={RASTER_COLUMNS} rows={RASTER_ROWS} cells={cellsFor(show, index)} />
{hasRoom && (
<Box flexDirection="column">
<Text bold>{petName}</Text>
<Text wrap="truncate-end">{caption}</Text>
</Box>
)}
</Box>
)
}
if (e.surface === 'desktop') {
const { Box, Button, Svg, Text } = $.ui.resolve(e)
const openSettings = () => void $.ui.open({ id: PANE, title: 'Desk Pet settings', focus: true, closeOnEscape: true })
return (
<Box flexDirection="row" alignItems="center" gap={2} width="100%" borderStyle="round" paddingX={1} paddingY={1}>
<Svg source={svgFor(show)} alt={`${petName}: ${caption}`} width={W * 4} height={H * 4} isInteractive />
<Box flexDirection="column" flexGrow={1} gap={1}>
<Text bold>{petName}</Text>
<Text>{caption}</Text>
</Box>
<Button key="settings" label="Settings" plain dimColor onPress={openSettings} />
</Box>
)
}
return next(e)
})Licence text (MIT)
MIT License Copyright (c) 2026 isr431 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
What its code calls
tool callsremembers
The design, read from code
Drawn from the mod's source at the commit read, not from a run: a list is drawn three times, a condition takes its first branch that draws in the desktop app, and a value only the run time knows is shown as a made-up sample (dotted underline) or left out. Colours and type are this site's.
What its code shows
Read from the source at commit 826fcb9f33e8 on 2026-10-06. The first group decides whether a mod is listed; the rest is for you to weigh. A later commit is not read until the next crawl.
| Decides the listing: code you can check | |
|---|---|
| Entry read | Every module hooks/hooks.json names was read.hooks/register.tsx |
| Parses | Every file parses as TypeScript or JavaScript.3 files parsed |
| All its code is in the mod | Every import is a file of the mod or the engine's own module; no packages, no require.all its code is in the mod |
| Readable | No minified lines, no eval or new Function, no import of a computed path, no encoded blobs.no minified code, no eval, no encoded blobs |
| Calls in the open | Network and programs are reached as $.http.fetch and $.process.run in place, never passed around.every call outside goes through $ in the open |
| For you to weigh before installing | |
| Where it draws | The terminal, the desktop app, both, or nothing (hooks only: a guard or a prompt rewriter), as its code says. Shown, never a reason to leave a mod out.draws in the terminal and the desktop app, with its own branch for the desktop |
| Install line | Whether its repository's own .claude-plugin/marketplace.json lists it, so it installs from that marketplace with the lines on its page.listed in its repository's .claude-plugin/marketplace.json: installs from there |
| Programs on Windows | Whether every program it starts through $.process exists on Windows (tail, date, open, osascript, /usr/… do not).runs no program a Windows PC lacks |
| Network | Whether every fetch names its https host in the code.no network |
| Programs | Whether every program it starts is named in the code and is not a shell, an interpreter or a network tool.starts no programs |
| Reads and sends | Whether it both reads files or environment variables and reaches the network.reaches no network |
| Keys in the source | Whether the source holds what looks like an API key or a private key.no keys in the source |
| Licence | An open licence (MIT, Apache-2.0, BSD, ISC, Unlicense, 0BSD, CC0) with its text lets modscode show its code; otherwise the code is linked.MIT |
This is a reading of the code text, not a security review: it does not run the mod, and it cannot see what a program the mod starts does. The check before installing is yours. How mods are chosen
Install it
Check it yourself before you install it. Mods run unsandboxed, with your permissions, and modscode does not vouch for what this code does. Read the code below (or run claude plugin validate . in its folder), weigh what it reaches, and install the commit you read.
Its repository is its marketplace. Add that marketplace (in the terminal with these commands, or in the desktop app's plugin settings) and install the mod from it:
/plugin marketplace add isr431/desk-pet/plugin install desk-pet@desk-petThis installs the marketplace's latest commit, which may not be the one read here (826fcb9f33e8). Compare them before you install.
Ask Claude about it
With the modscode connector added, Claude can read this design, what its code reaches and its code, and build on them. Ask it like this:
Read the modscode design "isr431-desk-pet" with its code and make me a pane like itSearch them from Claude: the MCP connector
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