modscode JA

modscode / Gallery / usage-mod

usage-mod

Your Claude Code usage as colored chips above the prompt: 5h and weekly limits (% left), session cost and spend history. /usage-mod opens the full view.

Code you can checkTerminal + desktopPaneBandBoxButtonSvg

What it does

  • Draws a band above the prompt, a pane
  • Hooks session.measure, session.start, turn.complete
  • Keeps its own state between turns
  • Calls the network
  • Starts processes

Good points

  • Written in TypeScript
  • Has a desktop-specific branch
  • Handles errors

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)

register.tsx
import type { Register } from 'claude-code'

// Drawn like usage-mod by Kien Hoang Trung (pane, band), as modscode read it from the mod's code:
// https://modscode.com/gallery/kreddevils18-usage-mod/
// 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 band above the prompt; what else goes there is drawn under it
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const { Box, Svg, Button } = $.ui.resolve(e)
    const source = '…'
    const alt = '…'
    return (
      <Box flexDirection="column" rowGap={1}>
        <Box columnGap={2} alignItems="center">
          <Svg source={`${source}`} alt={`${alt}`} />
          <Button label="Details" plain />
        </Box>
        <Box columnGap={2} alignItems="center">
          <Svg source={`${source}`} alt={`${alt}`} />
          <Button label="Details" plain />
        </Box>
        <Box columnGap={2} alignItems="center">
          <Svg source={`${source}`} alt={`${alt}`} />
          <Button label="Details" plain />
        </Box>
        {await next(e)}
      </Box>
    )
  })

  // the pane: open it with $.ui.open({ id: 'my-pane', title: "Usage" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Svg, Button } = $.ui.resolve(e)
    const source = '…'
    const alt = '…'
    return (
      <Box flexDirection="column" gap={1}>
        <Svg source={`${source}`} alt={`${alt}`} />
        <Button label="Refresh spend" />
      </Box>
    )
  })
}

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 414–449 · Band
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    if (!isBandOn || e.props.hasSurvey) return next(e)
    const tiers = bandTiers(await bandSnapshot($), showSpend)
    if (tiers.length === 0) return next(e)

    const els = $.ui.resolve(e)
    const { Box, Button, Svg } = els
    const details = <Button key="details" label="Details" plain onPress={() => $.ui.open({ id: PANE, title: 'Usage' })} />
    if (e.surface === 'terminal') {
      const rows = pickLayout(tiers, e.props.bodyColumns - DETAILS_CELLS, cellWidth)
      return (
        <Box flexDirection="column">
          {rows.map((row, i) => (
            <Box key={`row-${i}`} columnGap={1}>
              {chipRow(els, row)}
              {i === 0 ? details : null}
            </Box>
          ))}
        </Box>
      )
    }
    const rows = pickLayout(tiers, e.props.bodyColumns * CELL_PX - DETAILS_PX, bandWidth)
    return (
      <Box flexDirection="column" rowGap={1}>
        {rows.map((row, i) => {
          const band = bandSvg(row)
          return (
            <Box key={`row-${i}`} columnGap={2} alignItems="center">
              <Svg source={band.source} alt={band.alt} width={band.width} height={band.height} isInteractive={isInteractive} />
              {i === 0 ? details : null}
            </Box>
          )
        })}
      </Box>
    )
  })
hooks/register.tsx lines 451–472 · Pane
  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const els = $.ui.resolve(e)
    const { Box, Button, Svg } = els
    const model = paneModel(await snapshot($))
    const refreshButton = <Button key="refresh" label="Refresh spend" onPress={() => refresh($, refreshMs)} />
    if (e.surface === 'terminal') {
      return (
        <Box flexDirection="column" gap={1}>
          {terminalPane(els, model)}
          {refreshButton}
        </Box>
      )
    }
    // The card is laid out at the panel's own width, so its blocks run edge to edge.
    const card = paneSvg(model, Math.max(280, Math.floor(e.props.bodyColumns * CELL_PX)))
    return (
      <Box flexDirection="column" gap={1}>
        <Svg source={card.source} alt={card.alt} width={card.width} height={card.height} isInteractive={isInteractive} />
        {refreshButton}
      </Box>
    )
  })
Licence text (MIT)
MIT License

Copyright (c) 2026 Kien Hoang Trung

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

networkruns programswrites filesenv varsremembers

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 d98d8f550429 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 readEvery module hooks/hooks.json names was read.hooks/register.tsx
ParsesEvery file parses as TypeScript or JavaScript.16 files parsed
All its code is in the modEvery import is a file of the mod or the engine's own module; no packages, no require.all its code is in the mod
ReadableNo 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 openNetwork 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 drawsThe 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, the same in both
Install lineWhether 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 WindowsWhether every program it starts through $.process exists on Windows (tail, date, open, osascript, /usr/… do not).runs no program a Windows PC lacks
NetworkWhether every fetch names its https host in the code.hooks/register.tsx:228 fetch(PLAN_USAGE_URL)
ProgramsWhether every program it starts is named in the code and is not a shell, an interpreter or a network tool.hooks/register.tsx:288 node (a shell or interpreter)
Reads and sendsWhether it both reads files or environment variables and reaches the network.reads environment variables and files and reaches the network
Keys in the sourceWhether the source holds what looks like an API key or a private key.no keys in the source
LicenceAn 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 kreddevils18/claude-usage-mod
/plugin install usage-mod@claude-usage-mod

This installs the marketplace's latest commit, which may not be the one read here (d98d8f550429). 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 "kreddevils18-usage-mod" with its code and make me a pane like it

Search them from Claude: the MCP connector

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