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modscode / Gallery / context-gauge

context-gauge

Context-window gauge: a fill bar in the readout, toasts as it fills, a /ctx breakdown pane with Compact now, and optional auto-compaction between turns.

Code you can checkTerminal + desktopPaneBandStatus lineToastBoxButtonText

What it does

  • Draws a band above the prompt, a pane, toasts
  • Adds /ctx
  • Hooks session.compact, session.end, session.measure, session.start and 3 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)

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

// Drawn like context-gauge by mako-code (pane, band, status, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/mako-code-context-gauge/
// 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, Text } = $.ui.resolve(e)
    const text = '…'
    return (
      <Box flexDirection="column">
        <Box flexDirection="row">
          <Text wrap="wrap">
            <Text>
              {` ${text} `}
            </Text>
          </Text>
        </Box>
        {await next(e)}
      </Box>
    )
  })

  // the pane: open it with $.ui.open({ id: 'my-pane', title: "Context" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const header = '…'
    const model = '…'
    const hhmmss = '…'
    const fmtTokens = '…'
    const autoAt = '…'
    const label = '…'
    const tokens = '…'
    const share = '…'
    const label2 = '…'
    const tokens2 = '…'
    const share2 = '…'
    const label3 = '…'
    const tokens3 = '…'
    const share3 = '…'
    const memoryCount = '…'
    const fmtTokens2 = '…'
    const label4 = '…'
    const detail = '…'
    const fmtTokens3 = '…'
    const label5 = '…'
    const detail2 = '…'
    const fmtTokens4 = '…'
    const label6 = '…'
    const detail3 = '…'
    const mcpCount = '…'
    const fmtTokens5 = '…'
    const fmtTokens6 = '…'
    const label7 = '…'
    const detail4 = '…'
    const fmtTokens7 = '…'
    const label8 = '…'
    const detail5 = '…'
    const fmtTokens8 = '…'
    const label9 = '…'
    const detail6 = '…'
    const skillCount = '…'
    const fmtTokens9 = '…'
    const fmtTokens10 = '…'
    const label10 = '…'
    const detail7 = '…'
    const fmtTokens11 = '…'
    const label11 = '…'
    const detail8 = '…'
    const fmtTokens12 = '…'
    const label12 = '…'
    const detail9 = '…'
    const message = '…'
    return (
      <Box flexDirection="column">
        <Text bold>
          {header}
        </Text>
        <Box flexDirection="column">
          <Text dimColor wrap="wrap">
            {model}
            {" · estimated "}
            {hhmmss}
            {" · auto-compact"}
            {" "}
            {`at ${fmtTokens}`}
            {` · this mod compacts at ${autoAt}%`}
          </Text>
          <Text>
            {" "}
          </Text>
          <Text>
            {label}
            <Text>
              ████████░░░░░░░░
            </Text>
            {tokens}
            <Text dimColor>
              {share}
            </Text>
          </Text>
          <Text>
            {label2}
            <Text>
              ████████░░░░░░░░
            </Text>
            {tokens2}
            <Text dimColor>
              {share2}
            </Text>
          </Text>
          <Text>
            {label3}
            <Text>
              ████████░░░░░░░░
            </Text>
            {tokens3}
            <Text dimColor>
              {share3}
            </Text>
          </Text>
          <Box flexDirection="column" marginTop={1}>
            <Text bold>
              {"Memory files "}
              <Text dimColor>
                (
                {memoryCount}
                {" · "}
                {fmtTokens}
                )
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens2}
              {" "}
              {label4}
              {" "}
              <Text dimColor>
                {detail}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens3}
              {" "}
              {label5}
              {" "}
              <Text dimColor>
                {detail2}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens4}
              {" "}
              {label6}
              {" "}
              <Text dimColor>
                {detail3}
              </Text>
            </Text>
          </Box>
          <Box flexDirection="column" marginTop={1}>
            <Text bold>
              {"MCP tools "}
              <Text dimColor>
                (
                {mcpCount}
                {" · "}
                {fmtTokens5}
                )
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens6}
              {" "}
              {label7}
              {" "}
              <Text dimColor>
                {detail4}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens7}
              {" "}
              {label8}
              {" "}
              <Text dimColor>
                {detail5}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens8}
              {" "}
              {label9}
              {" "}
              <Text dimColor>
                {detail6}
              </Text>
            </Text>
          </Box>
          <Box flexDirection="column" marginTop={1}>
            <Text bold>
              {"Skills "}
              <Text dimColor>
                (
                {skillCount}
                {" · "}
                {fmtTokens9}
                )
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens10}
              {" "}
              {label10}
              {" "}
              <Text dimColor>
                {detail7}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens11}
              {" "}
              {label11}
              {" "}
              <Text dimColor>
                {detail8}
              </Text>
            </Text>
            <Text wrap="truncate-end">
              {fmtTokens12}
              {" "}
              {label12}
              {" "}
              <Text dimColor>
                {detail9}
              </Text>
            </Text>
          </Box>
        </Box>
        <Box gap={1} marginTop={1}>
          <Button hotkey="r" label="Refresh" />
          <Button hotkey="c" label="Compact now" />
          <Button hotkey="x" role="dismiss" label="Close" />
        </Box>
        <Text dimColor wrap="wrap">
          {message}
        </Text>
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const pct = '…'
    const used = '…'
    await $.ui.toast(`Context ${pct}% full (${used}): /compact now to choose what stays.`)
    await $.ui.toast(`Context ${pct}% full (${used}). /ctx shows what fills it.`)
    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.

mods/telemetry/context-gauge/hooks/readout.ts lines 649–655 · Band
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const text = r.text
    if ((await isHostedNow($, r)) || r.look.place !== 'top' || text === null || e.props.hasSurvey) return next(e)
    const below = await next(e)
    const { Box, Text } = $.ui.resolve(e)
    return withReadout({ Box: Box as Make['Box'], Text: Text as Make['Text'] }, below, r.name, text, r.look, e.props.isWorking, e.surface === 'terminal' ? r.glyphs : 'full')
  })
mods/telemetry/context-gauge/hooks/readout.ts lines 461–485 · Band
export function withReadout(make: Make, below: RenderElement | null | undefined, name: string, text: string, look: Look, isWorking = false, glyphs: IconGlyphs = 'full'): RenderElement {
  if (isWorking && look.whileWorking === 'hide') return below ?? make.Box({ children: [] })
  const piece = pieceElement(make, { name, text, color: look.color }, look, isWorking && look.whileWorking === 'dim', glyphs)
  const justify = justifyOf(look.align)
  const ownRow = (key: string) => make.Box({ key, flexDirection: 'row', justifyContent: justify, children: [make.Text({ wrap: 'wrap', children: [piece] })] })

  const isOurs = below !== null && below !== undefined && below.type === 'Box' && keyOf(below) === BAND_KEY
  const rest: RenderNode[] = isOurs ? [...(below.children ?? [])] : isEmpty(below) ? [] : [below as RenderElement]

  if (look.layout === 'merged') {
    const at = rest.findIndex(n => keyOf(n) === ROW_KEY)
    const row = at >= 0 ? rest[at] : undefined
    if (row !== undefined && typeof row !== 'string' && row.type === 'Box') {
      const line = row.children?.[0]
      if (line !== undefined && typeof line !== 'string' && line.type === 'Text') {
        const sep = make.Text({ dimColor: true, children: [separatorOf(look)] })
        const joined = make.Text({ ...line.props, children: [piece, sep, ...(line.children ?? [])] })
        rest[at] = make.Box({ ...row.props, children: [joined] })
        return make.Box({ key: BAND_KEY, flexDirection: 'column', children: rest })
      }
    }
    return make.Box({ key: BAND_KEY, flexDirection: 'column', children: [ownRow(ROW_KEY), ...rest] })
  }
  return make.Box({ key: BAND_KEY, flexDirection: 'column', children: [ownRow(`${ROW_KEY}:${name}`), ...rest] })
}
mods/telemetry/context-gauge/hooks/readout.ts lines 412–415 · Band
function pieceElement(make: Make, p: Piece, look: Look, isDimmed: boolean, glyphs: IconGlyphs = 'full'): RenderElement {
  const text = pieceText(p.name, p.text, look, glyphs)
  return make.Text({ ...pieceProps(p.color, look, isDimmed), children: [look.style === 'pills' ? ` ${text} ` : text] })
}
mods/telemetry/context-gauge/hooks/register.tsx lines 333–447 · Pane
  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const snap = await read($, snapshot)
    const live = await read($, fill)
    const message = await read($, note)
    lastColumns = e.props.bodyColumns
    const width = Math.max(30, e.props.bodyColumns - 2)
    const labelW = Math.min(22, Math.max(12, Math.floor(width * 0.3)))
    const barW = Math.max(6, Math.min(40, width - labelW - 16))
    const autoAt = autoCompactAt()

    const header =
      live === null
        ? 'Context: no response yet in this window'
        : `Context ${fmtTokens(live.tokens)} / ${fmtTokens(live.window)} · ${Math.round(live.percent)}%`
    let usedIndex = 0

    return (
      <Box flexDirection="column">
        <Text bold>{header}</Text>
        {snap === null ? (
          <Text dimColor>No breakdown yet: press Refresh.</Text>
        ) : (
          <Box flexDirection="column">
            <Text dimColor wrap="wrap">
              {snap.model} · estimated {hhmmss(snap.at)} · auto-compact{' '}
              {snap.isAutoCompactEnabled && snap.autoCompactThreshold !== null ? `at ${fmtTokens(snap.autoCompactThreshold)}` : 'off'}
              {autoAt > 0 ? ` · this mod compacts at ${autoAt}%` : ''}
            </Text>
            <Text> </Text>
            {snap.rows.map(row => {
              const label = row.name.length >= labelW ? `${row.name.slice(0, labelW - 2)}… ` : row.name.padEnd(labelW)
              const tokens = fmtTokens(row.tokens).padStart(8)
              if (row.kind === 'deferred') {
                return (
                  <Text dimColor>
                    {label}
                    {'(loaded on demand)'.padEnd(barW)}
                    {tokens}
                  </Text>
                )
              }
              const bar = blockBar(row.tokens, snap.maxTokens, barW)
              const share = pctOf(row.tokens, snap.maxTokens).padStart(7)
              if (row.kind === 'used') {
                const color = PALETTE[usedIndex++ % PALETTE.length] ?? 'cyan'
                return (
                  <Text>
                    {label}
                    <Text color={color}>{bar}</Text>
                    {tokens}
                    <Text dimColor>{share}</Text>
                  </Text>
                )
              }
              return (
                <Text dimColor>
                  {label}
                  {bar}
                  {tokens}
                  {share}
                </Text>
              )
            })}
            {snap.memoryFiles.length > 0 && (
              <Box flexDirection="column" marginTop={1}>
                <Text bold>
                  Memory files <Text dimColor>({snap.memoryCount} · {fmtTokens(snap.memoryTokens)})</Text>
                </Text>
                {snap.memoryFiles.map(item => (
                  <Text wrap="truncate-end">
                    {fmtTokens(item.tokens).padStart(7)} {item.label} <Text dimColor>{item.detail}</Text>
                  </Text>
                ))}
              </Box>
            )}
            {snap.mcpTools.length > 0 && (
              <Box flexDirection="column" marginTop={1}>
                <Text bold>
                  MCP tools <Text dimColor>({snap.mcpCount} · {fmtTokens(snap.mcpTokens)})</Text>
                </Text>
                {snap.mcpTools.map(item => (
                  <Text wrap="truncate-end">
                    {fmtTokens(item.tokens).padStart(7)} {item.label} <Text dimColor>{item.detail}</Text>
                  </Text>
                ))}
              </Box>
            )}
            {snap.skills.length > 0 && (
              <Box flexDirection="column" marginTop={1}>
                <Text bold>
                  Skills <Text dimColor>({snap.skillCount} · {fmtTokens(snap.skillTokens)})</Text>
                </Text>
                {snap.skills.map(item => (
                  <Text wrap="truncate-end">
                    {fmtTokens(item.tokens).padStart(7)} {item.label} <Text dimColor>{item.detail}</Text>
                  </Text>
                ))}
              </Box>
            )}
          </Box>
        )}
        <Box gap={1} marginTop={1}>
          <Button key="refresh" hotkey="r" label="Refresh" onPress={() => void refreshPane($)} />
          <Button key="compact" hotkey="c" label="Compact now" onPress={() => void compactNow($, 'button')} />
          <Button key="close" hotkey="x" role="dismiss" label="Close" onPress={() => void $.ui.close({ id: PANE })} />
        </Box>
        {message !== null && (
          <Text dimColor wrap="wrap">
            {message}
          </Text>
        )}
      </Box>
    )
  })
Licence text (MIT)
MIT License

Copyright (c) 2026 mako-code

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

env 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 ec6ea2383749 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.mods/telemetry/context-gauge/hooks/register.tsx
ParsesEvery file parses as TypeScript or JavaScript.4 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.no network
ProgramsWhether 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 sendsWhether it both reads files or environment variables and reaches the network.reaches no 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 mako-code/gobworks
/plugin install context-gauge@gobworks

This installs the marketplace's latest commit, which may not be the one read here (ec6ea2383749). 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 "mako-code-context-gauge" with its code and make me a pane like it

Search them from Claude: the MCP connector

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