grounded-engineering by madjagstudios: Claude Code mod code

What it does

Draws a pane, toasts
Adds /grounded-engineering:grounded, /grounded-skills
Hooks command.describe, fs.exists, fs.list, fs.read and 2 more

Good points

No network calls
Starts no processes
Written in TypeScript
Has a desktop-specific branch

Code to start from

A starter ModsCode writes from the drawing it read, and the mod's own lines that draw, where there are any.

Starter (register.tsx)

import type { Register } from 'claude-code'

// Drawn like grounded-engineering by Grounded Engineering (pane, toast), as ModsCode read it from the mod's code:
// https://modscode.com/claude-mods/mods/madjagstudios-grounded-engineering/
// 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 $.ui.open({ id: 'my-pane', title: "Grounded" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Text, Button, Link, Input } = $.ui.resolve(e)
    const length = '…'
    const text = '…'
    const name = '…'
    const s = '…'
    const repository = '…'
    const value = '…'
    const label = '…'
    const count = '…'
    const badgeText = '…'
    const summary = '…'
    const why = '…'
    const pattern = '…'
    const rationale = '…'
    const category = '…'
    const source_ids = '…'
    const id = '…'
    const cardUrl = '…'
    const badgeText2 = '…'
    const why2 = '…'
    const pattern2 = '…'
    const badgeText3 = '…'
    const why3 = '…'
    const pattern3 = '…'
    const count2 = '…'
    const badgeText4 = '…'
    const agent_snippet = '…'
    const pattern4 = '…'
    const badgeText5 = '…'
    const agent_snippet2 = '…'
    const pattern5 = '…'
    const badgeText6 = '…'
    const agent_snippet3 = '…'
    const pattern6 = '…'
    return (
      <Box flexDirection="column" gap={1}>
        <Box flexDirection="row" justifyContent="space-between" gap={1}>
          <Box flexGrow={1} flexShrink={1} minWidth={0}>
            <Text bold wrap="truncate-end">
              Grounded Engineering
            </Text>
          </Box>
          <Box flexDirection="row" gap={1} flexShrink={0}>
            <Button hotkey="1" variant="primary" label={`Practices ${length}`} />
            <Button hotkey="2" variant="primary" label={`Skill repos ${length}`} />
          </Box>
        </Box>
        <Box flexDirection="column" gap={1}>
          <Box flexDirection="row" justifyContent="space-between" gap={1}>
            <Box flexDirection="row" gap={1} flexShrink={1} minWidth={0} flexWrap="wrap">
              <Text wrap="truncate-end">
                {` ${text} `}
              </Text>
              <Text wrap="truncate-end">
                {` ${text} `}
              </Text>
              <Text wrap="truncate-end">
                {` ${text} `}
              </Text>
            </Box>
            <Box flexShrink={0}>
              <Button plain hotkey="d" label="Hide details" />
            </Box>
          </Box>
          <Box flexDirection="column">
            <Text wrap="truncate-end">
              {`${name}: ${s}`}
            </Text>
            <Text wrap="truncate-end">
              {`${name}: ${s}`}
            </Text>
            <Text wrap="truncate-end">
              {`${name}: ${s}`}
            </Text>
            <Link href={`${repository}`}>
              ☆ Star Grounded Engineering
            </Link>
          </Box>
          <Box flexDirection="column">
            <Text>
              Search practices
            </Text>
            <Box borderStyle="round" paddingX={1}>
              <Input value={`${value}`} />
            </Box>
          </Box>
          <Box flexDirection="row" justifyContent="space-between">
            <Button plain label={`▾ ${label}`} />
            <Text>
              {count}
            </Text>
          </Box>
          <Box flexDirection="column" gap={1}>
            <Box flexDirection="column" borderStyle="round" paddingX={1}>
              <Box flexDirection="column">
                <Box flexGrow={1} flexShrink={1} minWidth={0}>
                  <Button plain label={`${text}`} />
                </Box>
                <Box flexShrink={0} alignSelf="flex-start">
                  <Text wrap="truncate-end">
                    {badgeText}
                  </Text>
                </Box>
              </Box>
              <Text>
                Adopted through the CLI
              </Text>
              <Text>
                {`In short: ${summary}`}
              </Text>
              <Text>
                <Text bold>
                  {"Why here: "}
                </Text>
                {why}
              </Text>
              <Text>
                {pattern}
              </Text>
              <Text>
                <Text>
                  {"! "}
                </Text>
                {`Trade-off: ${rationale}`}
              </Text>
              <Text wrap="truncate-end">
                {`${category} · ${source_ids} · ${id}`}
              </Text>
              <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                <Link href={`${cardUrl}`}>
                  Evidence ›
                </Link>
              </Box>
            </Box>
            <Box flexDirection="column" borderStyle="round" paddingX={1}>
              <Box flexDirection="column">
                <Box flexGrow={1} flexShrink={1} minWidth={0}>
                  <Button plain label={`${text}`} />
                </Box>
                <Box flexShrink={0} alignSelf="flex-start">
                  <Text wrap="truncate-end">
                    {badgeText2}
                  </Text>
                </Box>
              </Box>
              <Text>
                Adopted through the CLI
              </Text>
              <Text>
                {`In short: ${summary}`}
              </Text>
              <Text>
                <Text bold>
                  {"Why here: "}
                </Text>
                {why2}
              </Text>
              <Text>
                {pattern2}
              </Text>
              <Text>
                <Text>
                  {"! "}
                </Text>
                {`Trade-off: ${rationale}`}
              </Text>
              <Text wrap="truncate-end">
                {`${category} · ${source_ids} · ${id}`}
              </Text>
              <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                <Link href={`${cardUrl}`}>
                  Evidence ›
                </Link>
              </Box>
            </Box>
            <Box flexDirection="column" borderStyle="round" paddingX={1}>
              <Box flexDirection="column">
                <Box flexGrow={1} flexShrink={1} minWidth={0}>
                  <Button plain label={`${text}`} />
                </Box>
                <Box flexShrink={0} alignSelf="flex-start">
                  <Text wrap="truncate-end">
                    {badgeText3}
                  </Text>
                </Box>
              </Box>
              <Text>
                Adopted through the CLI
              </Text>
              <Text>
                {`In short: ${summary}`}
              </Text>
              <Text>
                <Text bold>
                  {"Why here: "}
                </Text>
                {why3}
              </Text>
              <Text>
                {pattern3}
              </Text>
              <Text>
                <Text>
                  {"! "}
                </Text>
                {`Trade-off: ${rationale}`}
              </Text>
              <Text wrap="truncate-end">
                {`${category} · ${source_ids} · ${id}`}
              </Text>
              <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                <Link href={`${cardUrl}`}>
                  Evidence ›
                </Link>
              </Box>
            </Box>
          </Box>
          <Box flexDirection="row" justifyContent="space-between">
            <Button plain label={`▾ ${label}`} />
            <Text>
              {count2}
            </Text>
          </Box>
          <Box flexDirection="column" gap={1}>
            <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
              <Button plain label={`● ${label}`} />
              <Button plain label={`● ${label}`} />
              <Button plain label={`● ${label}`} />
              <Button plain label={`● ${label}`} />
            </Box>
            <Box flexDirection="column">
              <Box flexDirection="column" borderStyle="round" paddingX={1}>
                <Box flexDirection="column">
                  <Box flexGrow={1} flexShrink={1} minWidth={0}>
                    <Button plain label={`${text}`} />
                  </Box>
                  <Box flexShrink={0} alignSelf="flex-start">
                    <Text wrap="truncate-end">
                      {badgeText4}
                    </Text>
                  </Box>
                </Box>
                <Text>
                  Adopted through the CLI
                </Text>
                <Text>
                  {`In short: ${summary}`}
                </Text>
                <Text>
                  <Text bold>
                    {"In short: "}
                  </Text>
                  {agent_snippet}
                </Text>
                <Text>
                  {pattern4}
                </Text>
                <Text>
                  <Text>
                    {"! "}
                  </Text>
                  {`Trade-off: ${rationale}`}
                </Text>
                <Text wrap="truncate-end">
                  {`${category} · ${source_ids} · ${id}`}
                </Text>
                <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                  <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                  <Link href={`${cardUrl}`}>
                    Evidence ›
                  </Link>
                </Box>
              </Box>
              <Box flexDirection="column" borderStyle="round" paddingX={1}>
                <Box flexDirection="column">
                  <Box flexGrow={1} flexShrink={1} minWidth={0}>
                    <Button plain label={`${text}`} />
                  </Box>
                  <Box flexShrink={0} alignSelf="flex-start">
                    <Text wrap="truncate-end">
                      {badgeText5}
                    </Text>
                  </Box>
                </Box>
                <Text>
                  Adopted through the CLI
                </Text>
                <Text>
                  {`In short: ${summary}`}
                </Text>
                <Text>
                  <Text bold>
                    {"In short: "}
                  </Text>
                  {agent_snippet2}
                </Text>
                <Text>
                  {pattern5}
                </Text>
                <Text>
                  <Text>
                    {"! "}
                  </Text>
                  {`Trade-off: ${rationale}`}
                </Text>
                <Text wrap="truncate-end">
                  {`${category} · ${source_ids} · ${id}`}
                </Text>
                <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                  <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                  <Link href={`${cardUrl}`}>
                    Evidence ›
                  </Link>
                </Box>
              </Box>
              <Box flexDirection="column" borderStyle="round" paddingX={1}>
                <Box flexDirection="column">
                  <Box flexGrow={1} flexShrink={1} minWidth={0}>
                    <Button plain label={`${text}`} />
                  </Box>
                  <Box flexShrink={0} alignSelf="flex-start">
                    <Text wrap="truncate-end">
                      {badgeText6}
                    </Text>
                  </Box>
                </Box>
                <Text>
                  Adopted through the CLI
                </Text>
                <Text>
                  {`In short: ${summary}`}
                </Text>
                <Text>
                  <Text bold>
                    {"In short: "}
                  </Text>
                  {agent_snippet3}
                </Text>
                <Text>
                  {pattern6}
                </Text>
                <Text>
                  <Text>
                    {"! "}
                  </Text>
                  {`Trade-off: ${rationale}`}
                </Text>
                <Text wrap="truncate-end">
                  {`${category} · ${source_ids} · ${id}`}
                </Text>
                <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
                  <Button variant="primary" hotkey="a" label="Adapt to this repo" />
                  <Link href={`${cardUrl}`}>
                    Evidence ›
                  </Link>
                </Box>
              </Box>
            </Box>
          </Box>
        </Box>
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const skill = '…'
    const id = '…'
    await $.ui.toast(`Could not start /grounded-engineering:${skill} ${id}`)
    await $.ui.toast(`Could not show the link`)
    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.

plugin/hooks/register.tsx lines 186–194 · Pane

plugin/hooks/register.tsx:186

  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const ui = $.ui.resolve(e)
    // On desktop the app paints a Pane's own redraws only on the next input; a Client paints itself.
    if (e.surface === 'desktop' && 'Client' in ui) {
      const { Client } = ui
      return <Client key="grounded-app" module="./client/app.tsx" props={await paneModel($)} width="100%" flexGrow={1} />
    }
    return paneScreen(ui, await paneModel($), handlers($) as any, TERMINAL_PALETTE, e.props.bodyColumns ?? 0, 1)
  })

plugin/hooks/screens.tsx lines 68–92 · Pane

plugin/hooks/screens.tsx:68

export function paneScreen(ui: any, m: PaneModel, go: Go, p: Palette, columns: number, scale: number) {
  const { Box, Text, Button } = ui
  if (!m.catalog) {
    return (
      <Box key="catalog-error" flexDirection="column">
        <Text color={p.failed.text}>{`${m.error ?? 'catalog missing or invalid'}. Reinstall the plugin: /plugin install grounded-engineering@grounded-engineering`}</Text>
      </Box>
    )
  }
  const c = m.catalog
  return (
    <Box flexDirection="column" gap={1}>
      <Box flexDirection="row" justifyContent="space-between" gap={1}>
        {columns > 0 && columns < NARROW ? null : <Box flexGrow={1} flexShrink={1} minWidth={0}><Text bold wrap="truncate-end">Grounded Engineering</Text></Box>}
        <Box flexDirection="row" gap={1} flexShrink={0}>
          <Button key="tab-practices" hotkey="1" variant={m.screen === 'practices' ? 'primary' : 'secondary'} label={`Practices ${c.practices.length}`} onPress={() => go.tab('practices')} />
          <Button key="tab-skills" hotkey="2" variant={m.screen === 'skills' ? 'primary' : 'secondary'} label={`Skill repos ${c.skill_repos.length}`} onPress={() => go.tab('skills')} />
        </Box>
      </Box>
      {m.signals === null
        ? <Text color={p.dim}>Reading this repository…</Text>
        : m.screen === 'practices' ? practicesScreen(ui, m, c, go, p, columns, scale) : skillsScreen(ui, m, c, go, p, columns, scale)}
    </Box>
  )
}

plugin/hooks/screens.tsx lines 94–142 · Pane

plugin/hooks/screens.tsx:94

function practicesScreen(ui: any, m: PaneModel, c: SlimCatalog, go: Go, p: Palette, columns: number, scale: number) {
  const { Box, Text, Button, Link } = ui
  const s = m.signals!
  const all = rankPractices(c, s, m.adoption, Infinity)
  const fits = all.slice(0, 3)
  const adopted = new Set(m.adoption?.cards ?? [])
  const visible = c.practices.filter((x) => (m.category === 'All' || x.category === m.category) && matchesQuery([x.title, x.pattern, x.id], m.query))
  const gapText = all.length === 0 ? 'no gaps' : `${all.length} gap${all.length === 1 ? '' : 's'}`
  const detected = [...s.languages, s.test_framework ?? (s.has_tests ? 'tests (framework unknown)' : 'no tests')].join(' · ')
  return (
    <Box flexDirection="column" gap={1}>
      <Box flexDirection="row" justifyContent="space-between" gap={1}>
        <Box flexDirection="row" gap={1} flexShrink={1} minWidth={0} flexWrap="wrap">
          {chip(ui, p, all.length ? 'warn' : 'ok', gapText)}
          {chip(ui, p, 'neutral', `Detected: ${detected}`)}
          {m.adoption ? chip(ui, p, 'neutral', `Adopted: ${m.adoption.profile ?? 'custom'} · ${m.adoption.cards.length}`) : null}
        </Box>
        <Box flexShrink={0}><Button key="details" plain hotkey="d" label={m.showSignals ? 'Hide details' : 'Details ›'} onPress={() => go.toggleSignals()} /></Box>
      </Box>
      {m.showSignals ? (
        <Box key="signals" flexDirection="column">
          {c.signals.map((sig) => <Text color={p.dim} wrap="truncate-end">{`${sig.name}: ${JSON.stringify((s as Record<string, unknown>)[sig.name])}`}</Text>)}
          <Link href={c.repository}>☆ Star Grounded Engineering</Link>
        </Box>
      ) : null}
      {field(ui, p, 'search', 'Search practices', m.query, (v) => go.search(v))}
      {laneHeader(ui, p, 'warn', 'fits', '✋ Fits this repo', fits.length, !m.collapsed.fits, () => go.toggleLane('fits'))}
      {m.collapsed.fits ? null : fits.length === 0
        ? <Text color={p.dim}>Your repo already covers the basics.</Text>
        : <Box flexDirection="column" gap={1}>{fits.map((f) => practiceTile(ui, m, c, go, p, f.practice, `fit-${f.practice.id}`, 'Why here', f.why, adopted.has(f.practice.id), columns, scale, f.practice.agent_snippet ?? f.practice.pattern))}</Box>}
      {laneHeader(ui, p, 'neutral', 'all', 'All practices', visible.length, !m.collapsed.all, () => go.toggleLane('all'))}
      {m.collapsed.all ? null : (
        <Box flexDirection="column" gap={1}>
          <Box flexDirection="row" columnGap={2} rowGap={0} flexWrap="wrap">
            {option(ui, p, 'opt-cat-All', 'All', m.category === 'All', () => go.category('All'))}
            {c.categories.map((cat) => option(ui, p, `opt-cat-${cat}`, cat, m.category === cat, () => go.category(cat)))}
          </Box>
          {visible.length === 0 ? <Text color={p.dim}>No matches.</Text> : (
            <Box flexDirection="column">
              {visible.map((x) => m.selected === `all-${x.id}`
                ? practiceTile(ui, m, c, go, p, x, `all-${x.id}`, 'In short', x.agent_snippet ?? x.pattern, adopted.has(x.id), columns, scale)
                : practiceRow(ui, go, p, x, columns, scale))}
            </Box>
          )}
        </Box>
      )}
    </Box>
  )
}

plugin/hooks/tiles.tsx lines 48–51 · Pane

plugin/hooks/tiles.tsx:48

export function chip(ui: Ui, p: Palette, tone: Tone, text: string) {
  const { Text } = ui
  return <Text color={p[tone].text} {...(p[tone].bg ? { backgroundColor: p[tone].bg } : {})} wrap="truncate-end">{` ${text} `}</Text>
}

plugin/hooks/tiles.tsx lines 60–70 · Pane

plugin/hooks/tiles.tsx:60

export function field(ui: Ui, p: Palette, key: string, label: string, value: string, onChange: (v: string) => void) {
  const { Box, Text, Input } = ui
  return (
    <Box key={`${key}-box`} flexDirection="column">
      <Text color={p.dim}>{label}</Text>
      <Box borderStyle="round" borderColor={p.neutral.edge} paddingX={1}>
        <Input key={key} value={value} onInput={(v: string) => onChange(v)} onSubmit={(v: string) => onChange(v)} />
      </Box>
    </Box>
  )
}

plugin/hooks/tiles.tsx lines 32–40 · Pane

plugin/hooks/tiles.tsx:32

export function laneHeader(ui: Ui, p: Palette, tone: Tone, key: string, label: string, count: number, isOpen: boolean, onToggle: () => void) {
  const { Box, Text, Button } = ui
  return (
    <Box key={key} flexDirection="row" justifyContent="space-between">
      <Button key={`lane-${key}`} plain label={`${isOpen ? '▾' : '▸'} ${label}`} onPress={onToggle} />
      <Text color={p[tone].text}>{String(count)}</Text>
    </Box>
  )
}

Licence text (MIT)

MIT License

Copyright (c) 2026 MadJag Studios

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.

How to build this: Pane (panel), Add a slash command

What its code calls

reads filescalls tools

What its code shows

Read from the source at commit 63dbe3a18fca on 2026-10-11. 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.plugin/hooks/register.tsx
Parses	Every file parses as TypeScript or JavaScript.13 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 something of yours (files, environment variables, the transcript, settings) and reaches outside (the network, an MCP server, another session, telemetry).reads files, but reaches nothing outside
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
Settings hooks	Hooks declared in hooks/hooks.json or plugin.json beside the module: a command (a shell when it has no args), an HTTP request, an MCP tool or a model prompt at an event. They run outside $.no settings hooks: its function hooks alone
Servers it ships	MCP servers (a program, or a URL; a headersHelper is a shell command; a .mcpb bundle is unpacked at run time), LSP servers, monitors (a shell command for the whole session) and bin/ (on the PATH of the Bash tool).ships no MCP or LSP server, no monitor, no bin/
Skills, commands, agents	What its Markdown declares beyond text: allowed-tools granted for the turn, hooks added when a skill is invoked, a command run before Claude reads the skill.3 skills: text only
Tools and MCP	Whether every tool it calls through $.tool.call and $.mcp.call is named in the code, and none is a shell (Bash through the tool runs a shell without $.process).command.run: /?
Asks of the model	Completions it runs ($.model.complete, fork, classify), subagents it spawns, prompts it submits as you, and the tools, commands and agents it adds.adds command grounded-skills, adds command ?
Events it hooks	By what a hook there can do: gates (refuse a tool call, a prompt, a setting, another plugin), shapes (what the model reads: the system prompt, tool descriptions, each request), reads (your input, the events of the settings hooks, every event with *), and the rest.gates: command.run (grounded-engineering:gr…, grounded-skills) · shapes: command.describe (grounded-engineering:ad…, grounded-engineering:ex…) · reads: ui.message · also: session.start, ui.render (Pane), fs.read, fs.exists (+1)
Reads, by name	The environment variables and files it names, and whether it reads the transcript, settings.json, the prompt box or the mouse selection.files: its own folder/catalog.json, a path computed at run time
Writes, by name	The files and environment variables it names, and whether it changes settings, the prompt box, the clipboard, the conversation (a row the model reads) or another session.writes no files, environment variables, settings or conversation rows

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 its code (or run claude plugin validate . in its folder), weigh what it reaches, and install the commit you read.

From its marketplace

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 madjagstudios/grounded-engineering

/plugin install grounded-engineering@grounded-engineering

/reload-plugins

This installs the marketplace's latest commit, which may not be the one read here (63dbe3a18fca). Compare them before you install. /reload-plugins loads it into a session that is already open.

Try the commit ModsCode read

No marketplace needed. In a terminal, clone the repository, check out the commit read, validate the mod, and load it for one session:

git clone https://github.com/madjagstudios/grounded-engineering

git -C grounded-engineering checkout 63dbe3a18fca337c9da789146ee5ab14f553eec2

claude plugin validate grounded-engineering/plugin

claude --plugin-dir grounded-engineering/plugin

The validate line lists the events the mod hooks and what it asks Claude Code to do, without running it. The last line loads the mod for this session only and writes nothing to your settings. If the author has rewritten history, the commit may no longer exist.

Ask Claude about it

With the ModsCode connector added, Claude can read this mod's code and what it reaches, and build on them. Ask it like this:

Read the ModsCode mod "madjagstudios-grounded-engineering" with its code and make me one like it

Search them from Claude: the MCP connector

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Badge for your README

If this is your mod, paste this into your README. It links to this page.

README.md

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