Agent skill

Gpui Test

Writing tests for GPUI applications. An agent skill from StudentWeis/ropy.

MITAuto-check passed

Install Gpui Test

skills CLI

$ npx skills add StudentWeis/ropy --skill gpui-test -a claude-code

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

GitHub CLI

$ gh skill install StudentWeis/ropy gpui-test --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/StudentWeis/ropy.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/gpui-test .claude/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .claude/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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/StudentWeis/ropy/tree/main/.agents/skills/gpui-test

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 StudentWeis/ropy --skill gpui-test -a codex

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

GitHub CLI

$ gh skill install StudentWeis/ropy gpui-test --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/StudentWeis/ropy.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/gpui-test .agents/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .agents/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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 StudentWeis/ropy --skill gpui-test -a cursor

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

GitHub CLI

$ gh skill install StudentWeis/ropy gpui-test --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/StudentWeis/ropy.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/gpui-test .cursor/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .cursor/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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/StudentWeis/ropy.git --path .agents/skills/gpui-test

--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 StudentWeis/ropy --skill gpui-test -a gemini-cli

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

GitHub CLI

$ gh skill install StudentWeis/ropy gpui-test --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/StudentWeis/ropy.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/gpui-test .gemini/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .gemini/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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 StudentWeis/ropy gpui-test

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 StudentWeis/ropy --skill gpui-test -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/StudentWeis/ropy.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/gpui-test .github/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .github/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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 StudentWeis/ropy --skill gpui-test -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 StudentWeis/ropy gpui-test --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/StudentWeis/ropy.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/gpui-test .opencode/skills/gpui-test && 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 "gpui-test" agent skill from https://github.com/StudentWeis/ropy/tree/main/.agents/skills/gpui-test into .opencode/skills/gpui-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpui-test", 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: gpui-test
GitHub stars: 194
Token cost: ~607 tokens
SKILL.md length: 126 words
Files: 3
Skills in repo: 17
Repo updated: Sep 9, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Writing tests for GPUI applications. An agent skill from StudentWeis/ropy.

Testing components
SKILL.md covers Overview, Core Testing Infrastructure and Additional Resources
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Async operations

What it does

Gpui Test is an agent skill from StudentWeis/ropy. Writing tests for GPUI applications. Use when testing components, async operations, or UI behavior.

Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `examples.md` and `reference.md`).

The repository describes itself as: Cross-platform, lightweight clipboard manager written in Rust and GPUI. The licence is MIT.

When your agent uses it

Testing components
Async operations

Example prompts

“/gpui-test”

What it can do on your machine

Read from SKILL.md and the folder at commit 4e784df. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are rust).
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

Gpui Test loads about 607 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 126 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~27
When it runs · the whole SKILL.md, loaded when a task matches: ~607

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 StudentWeis/ropy at commit 4e784df, republished under its MIT licence (© StudentWeis). 126 words, ~607 tokens.

Download SKILL.mdSave it as .claude/skills/gpui-test/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.

name: gpui-test
description: Writing tests for GPUI applications. Use when testing components, async operations, or UI behavior.

Overview

GPUI provides a comprehensive testing framework that allows you to test UI components, async operations, and distributed systems. Tests run on a single-threaded executor that provides deterministic execution and the ability to test complex async scenarios. GPUI tests use the #[gpui::test] attribute and work with TestAppContext for basic testing and VisualTestContext for window-dependent tests.

Rules

If test does not require windows or rendering, we can avoid use [gpui::test] and TestAppContext, just write simple rust test.

Core Testing Infrastructure

Test Attributes

Basic Test

rust

#[gpui::test]
fn my_test(cx: &mut TestAppContext) {
    // Test implementation
}

Async Test

rust

#[gpui::test]
async fn my_async_test(cx: &mut TestAppContext) {
    // Async test implementation
}

Property Test with Iterations

rust

#[gpui::test(iterations = 10)]
fn my_property_test(cx: &mut TestAppContext, mut rng: StdRng) {
    // Property testing with random data
}

Test Contexts

TestAppContext

TestAppContext provides access to GPUI's core functionality without windows:

rust

#[gpui::test]
fn test_entity_operations(cx: &mut TestAppContext) {
    // Create entities
    let entity = cx.new(|cx| MyComponent::new(cx));

    // Update entities
    entity.update(cx, |component, cx| {
        component.value = 42;
        cx.notify();
    });

    // Read entities
    let value = entity.read_with(cx, |component, _| component.value);
    assert_eq!(value, 42);
}

VisualTestContext

VisualTestContext extends TestAppContext with window support:

rust

#[gpui::test]
fn test_with_window(cx: &mut TestAppContext) {
    // Create window with component
    let window = cx.update(|cx| {
        cx.open_window(Default::default(), |_, cx| {
            cx.new(|cx| MyComponent::new(cx))
        }).unwrap()
    });

    // Convert to visual context
    let mut cx = VisualTestContext::from_window(window.into(), cx);

    // Access window and component
    let component = window.root(&mut cx).unwrap();
}

Additional Resources

For detailed testing patterns and examples, see reference.md
For best practices and running tests, see examples.md

Files

SKILL.md and 2 other files in .agents/skills/gpui-test of StudentWeis/ropy.

SKILL.md
examples.md
reference.md

Open the folder on GitHubat commit 4e784df

Compare with similar skills

Gpui Test 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.

Gpui Test compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gpui Test this skillStudentWeis/ropy	194	—	~607	Automated safety check: Pass	MIT	29 days ago
Csharp Asyncgithub/awesome-copilot	40k	2 repos	~466	Automated safety check: Pass	MIT	today
GpuifeigeCode/navop	1.8k	—	~768	Automated safety check: Pass	Custom licence	today
Asynconsi/gomega	2.4k	—	~2.2k	Automated safety check: Pass	MIT	13 days ago
Defer Asyncthedaviddias/Front-End-Checklist	74k	—	~494	Automated safety check: Pass	MIT	yesterday
Fp Asyncsickn33/agentic-awesome-skills	47k	2 repos	~1.9k	Automated safety check: Pass	MIT	today

Similar skills

Csharp Async
github/awesome-copilot
Official
Get best practices for C async programming. An agent skill from github/awesome-copilot.
40k GitHub starsUsed in 2 repos~466 tokens
DevelopmentAuto-check passed
Gpui
feigeCode/navop
GPUI framework knowledge covering actions/keybindings, async/background tasks, context management (App/Window/Context<T/AsyncApp), custom elements (low-level Element trait), entity state management…
1.8k GitHub stars~768 tokensUpdated today
Frontend & DesignAuto-check passed
Async
onsi/gomega
Polling assertions in Gomega — Eventually (poll until it passes) and Consistently (must keep passing), the func(g Gomega) callback idiom, WithTimeout/WithPolling/Within/ProbeEvery, WithContext and…
2.4k GitHub stars~2.2k tokensUpdated 13 days ago
DevelopmentAuto-check passed
Defer Async
thedaviddias/Front-End-Checklist
A skill your agent uses when reviewing templates, rendered HTML, or shared components related to Load scripts with defer, async, or type=module.
74k GitHub stars~494 tokensUpdated yesterday
Auto-check passed
Fp Async
sickn33/agentic-awesome-skills
Practical async patterns using TaskEither - clean pipelines instead of try/catch hell, with real API examples
47k GitHub starsUsed in 2 repos~1.9k tokens
DatabasesAuto-check passed
Async Interview Automation
ComposioHQ/awesome-claude-skills
Automate Async Interview tasks via Rube MCP (Composio). An agent skill from ComposioHQ/awesome-claude-skills.
77k GitHub starsUsed in 3 repos~760 tokens
Productivity & AutomationAuto-check passed

Questions about Gpui Test

What does Gpui Test do?

Writing tests for GPUI applications. An agent skill from StudentWeis/ropy. Gpui Test is an agent skill from StudentWeis/ropy. Writing tests for GPUI applications.

When should I use Gpui Test?

Gpui Test fits situations like: testing components; async operations.

How do I install Gpui Test in Claude Code?

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

How do I install Gpui Test in Codex?

Run `npx skills add StudentWeis/ropy --skill gpui-test -a codex`. Or copy the skill folder (.agents/skills/gpui-test in StudentWeis/ropy) into .agents/skills/gpui-test in your project. Codex loads it when a task matches its description.

Can I use Gpui Test 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 StudentWeis/ropy --skill gpui-test -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gpui-test, .gemini/skills/gpui-test, .github/skills/gpui-test and .opencode/skills/gpui-test in your project.

What does Gpui Test need to run?

SKILL.md names no scripts, command-line tools or credentials: Gpui Test is instructions for the agent only.

Does Gpui Test 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 Gpui Test 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 Gpui Test use?

Gpui Test is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gpui Test use?

About 607 tokens (SKILL.md is roughly 2.4k 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 Gpui Test?

Skills that share tags, products or a category with Gpui Test: Csharp Async (github/awesome-copilot, 40k stars), Gpui (feigeCode/navop, 1.8k stars), Async (onsi/gomega, 2.4k stars) and Defer Async (thedaviddias/Front-End-Checklist, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gpui Test?

StudentWeis (a GitHub user) maintains it in StudentWeis/ropy, which has 194 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on September 9, 2026.

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

Install Gpui Test

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

Overview

Rules

Core Testing Infrastructure

Test Attributes

Basic Test

Async Test

Property Test with Iterations

Test Contexts

TestAppContext

VisualTestContext

Additional Resources

Files

Compare with similar skills

Similar skills

More from StudentWeis/ropy

Questions about Gpui Test