Agent skill

App Shell

Work on settings, command palette, sidebar, shortcuts, modals, dockable panels, favorites, global navigation, persistence, and visual shell tests

GPL-3.0Auto-check passedDevOps & Cloud

Install App Shell

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/app-shell .claude/skills/app-shell && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .claude/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/app-shell .agents/skills/app-shell && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .agents/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/app-shell .cursor/skills/app-shell && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .cursor/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/luxury-yacht/app.git --path .agents/skills/app-shell

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/app-shell .gemini/skills/app-shell && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .gemini/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/app-shell .github/skills/app-shell && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .github/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add luxury-yacht/app --skill app-shell -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install luxury-yacht/app app-shell --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/luxury-yacht/app.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/app-shell .opencode/skills/app-shell && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "app-shell" agent skill from https://github.com/luxury-yacht/app/tree/main/.agents/skills/app-shell into .opencode/skills/app-shell/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-shell", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: app-shell
GitHub stars: 444
Token cost: ~582 tokens
SKILL.md length: 134 words
Files: 1
Skills in repo: 17
Repo updated: Oct 10, 2026
First seen: Oct 7, 2026
Licence: GPL-3.0

At a glance

Work on settings, command palette, sidebar, shortcuts, modals, dockable panels, favorites, global navigation, persistence, and visual shell tests

DevOps & Cloud work in your project
SKILL.md covers Entry points and Checks
Calls mise

What it does

App Shell is an agent skill from luxury-yacht/app. Work on settings, command palette, sidebar, shortcuts, modals, dockable panels, favorites, global navigation, persistence, and visual shell tests

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud. The repository describes itself as: Luxury Yacht - A cross-platform app for managing Kubernetes clusters and resources. The licence is GPL-3.0.

When your agent uses it

DevOps & Cloud work in your project

Example prompts

“/app-shell”

What it can do on your machine

Read from SKILL.md and the folder at commit 7001a03. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- mise
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

App Shell loads about 582 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 134 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~39
When it runs · the whole SKILL.md, loaded when a task matches: ~582

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from luxury-yacht/app at commit 7001a03, republished under its GPL-3.0 licence (© luxury-yacht). 134 words, ~582 tokens.

Download SKILL.mdSave it as .claude/skills/app-shell/SKILL.md (or your agent's skills folder).

name: app-shell
description: Work on settings, command palette, sidebar, shortcuts, modals, dockable panels, favorites, global navigation, persistence, and visual shell tests

App Shell

Read only the contracts the change selects; follow further links when the changed path crosses that boundary.

Change	Read
Settings schema, preferences, persistence, rollback, runtime effects	app-preferences
Command palette, shortcuts, focus	keyboard
Sidebar or global/per-cluster navigation	navigation
Blocking modals	modals
Tabs or tab dragging	tabs
Docked/floating panels or handoffs	dockable-panels
Favorites or saved table state	gridtable-filtering
App-state reads or backend-call ownership	data-access
Native windows, chrome, menus, startup, quit, or Factory Reset	application-lifecycle
File placement or shared popup infrastructure	component-structure

Entry points

Frontend: frontend/src/ui/{settings,command-palette,shortcuts,navigation,layout,dockable,modals,favorites}, frontend/src/core/{settings,app-state-access}, frontend/src/shared/components/{modals,tabs}
Backend: backend/{preferences_service,preferences_settings,runtime_setting_policies,data_management_coordinator,desktop_shell,favorites_service,ui_state_store}.go

Checks

Keep labels, icons, categories, and command-palette entries aligned where they represent the same action.
Shortcuts, modals, and panels: exercise the affected focus, dismissal, selection, close, drag/drop, and identity contracts.
Reuse shared CSS/tokens.

Focused checks while iterating; use browser or Storybook validation for visual behavior:

mise exec -- npm run typecheck --prefix frontend
mise exec -- npm run test --prefix frontend -- settings command-palette shortcuts modals dockable favorites

Files

Just SKILL.md in .agents/skills/app-shell of luxury-yacht/app.

Open the folder on GitHubat commit 7001a03

Compare with similar skills

App Shell next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

App Shell compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
App Shell this skillluxury-yacht/app	444	—	~582	Automated safety check: Pass	GPL-3.0	today
Monitor CInrwl/nx	29k	6 repos	~4.7k	Automated safety check: Pass	MIT	yesterday
Terraform and OpenTofu Guideagentscope-ai/QwenPaw	36k	6 repos	~4.2k	Automated safety check: Pass	Apache-2.0	yesterday
Vercel Optimize Auditvercel-labs/agent-skills	32k	8 repos	~4.3k	Automated safety check: Pass	None	1 mo ago
Analyze GitHub Action Logswithastro/astro	63k	1 repos	~1.3k	Automated safety check: Pass	Custom licence	yesterday
Openclaw Live Updateropenclaw/openclaw	392k	—	~3.7k	Automated safety check: Pass	MIT	today

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Guidance for writing and testing Terraform and OpenTofu code: module structure, naming, test approaches, CI/CD workflows, state handling and security scanning.
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All 17 skills in this repo

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Improve Frontend
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Make Impossible States Impossible
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Add Resource
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Add or extend support for a Kubernetes resource kind across the required catalog, refresh, detail, object-panel, object-map, permission, documentation, and test surfaces
444 GitHub stars~704 tokensUpdated today
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App Review
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Audit broad Luxury Yacht systems or cross-cutting concerns for structural simplification, hardening, optimization, or refactoring; use for app-wide reviews and phased structural plans, not branch…
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Browse Tables
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Change cluster or namespace views, Browse/catalog surfaces, shared GridTable behavior, filters, pagination, large datasets, metrics columns, or refresh-backed resource tables
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Questions about App Shell

What does App Shell do?

Work on settings, command palette, sidebar, shortcuts, modals, dockable panels, favorites, global navigation, persistence, and visual shell tests. App Shell is an agent skill from luxury-yacht/app.

When should I use App Shell?

App Shell fits situations like: devOps & Cloud work in your project.

How do I install App Shell in Claude Code?

Run `npx skills add luxury-yacht/app --skill app-shell -a claude-code`. Or copy the skill folder (.agents/skills/app-shell in luxury-yacht/app) into .claude/skills/app-shell in your project. Claude Code loads it when a task matches its description.

How do I install App Shell in Codex?

Run `npx skills add luxury-yacht/app --skill app-shell -a codex`. Or copy the skill folder (.agents/skills/app-shell in luxury-yacht/app) into .agents/skills/app-shell in your project. Codex loads it when a task matches its description.

Can I use App Shell in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add luxury-yacht/app --skill app-shell -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/app-shell, .gemini/skills/app-shell, .github/skills/app-shell and .opencode/skills/app-shell in your project.

What does App Shell need to run?

Going by SKILL.md and its folder, App Shell needs the command-line tools its instructions call (mise).

Does App Shell access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is App Shell safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does App Shell use?

App Shell is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does App Shell use?

About 582 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to App Shell?

Skills that share tags, products or a category with App Shell: Monitor CI (nrwl/nx, 29k stars), Terraform and OpenTofu Guide (agentscope-ai/QwenPaw, 36k stars), Vercel Optimize Audit (vercel-labs/agent-skills, 32k stars) and Analyze GitHub Action Logs (withastro/astro, 63k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains App Shell?

luxury-yacht (a GitHub organization) maintains it in luxury-yacht/app, which has 444 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 10, 2026.

Source: luxury-yacht/app on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install App Shell

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

App Shell

Entry points

Checks

Files

Compare with similar skills

Similar skills

More from luxury-yacht/app

Related

Questions about App Shell