Web Application Testing
anthropics/skills
Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.
Authoring browser end-to-end tests for the Composer app with Playwright.
Install Browser E2E Tests
$ npx skills add dxos/dxos --skill browser-e2e-tests -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dxos/dxos browser-e2e-tests --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .claude/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.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/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .claude/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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 install https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-testsType 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.
$ npx skills add dxos/dxos --skill browser-e2e-tests -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dxos/dxos browser-e2e-tests --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .agents/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .agents/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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.
$ npx skills add dxos/dxos --skill browser-e2e-tests -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dxos/dxos browser-e2e-tests --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .cursor/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .cursor/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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 https://github.com/dxos/dxos.git --path .agents/skills/browser-e2e-tests--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add dxos/dxos --skill browser-e2e-tests -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dxos/dxos browser-e2e-tests --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .gemini/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.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/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .gemini/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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.
$ gh skill install dxos/dxos browser-e2e-testsInstalls 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).
$ npx skills add dxos/dxos --skill browser-e2e-tests -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .github/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.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/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .github/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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.
$ npx skills add dxos/dxos --skill browser-e2e-tests -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dxos/dxos browser-e2e-tests --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/browser-e2e-tests .opencode/skills/browser-e2e-tests && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "browser-e2e-tests" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/browser-e2e-tests into .opencode/skills/browser-e2e-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-e2e-tests", 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
browser-e2e-tests- GitHub stars
- 525
- Token cost
- ~2k tokens
- SKILL.md length
- 766 words
- Files
- 1
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Authoring browser end-to-end tests for the Composer app with Playwright.
- Works in 3 steps: data-testid — the default; add it if… → Framework/ARIA state that encodes… → Role — only scoped inside a testid'd…
- Reviewing .spec.ts under packages/apps/composer-app/src/playwright
- SKILL.md covers Every test binds to an .mdl QA…, Golden rule: target by…, Selector priority (only when a… and Spec structure, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Browser E2E Tests is an agent skill from dxos/dxos. Authoring browser end-to-end tests for the Composer app with Playwright. Use when writing, editing, or reviewing .spec.ts under packages/apps/composer-app/src/playwright, adding page-object helpers, or deciding how to target elements (always data-testid, never labels/roles).
Its SKILL.md is about 2k 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 Testing & QA, covering End-to-end testing and Browser testing. It works with Playwright. The repository describes itself as: TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.
When your agent uses it
- Reviewing .spec.ts under packages/apps/composer-app/src/playwright
- Adding page-object helpers
- Deciding how to target elements (always data-testid
- Never labels/roles)
Example prompts
- “/browser-e2e-tests”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- data-testid — the default; add it if missing.
- Framework/ARIA state that encodes behavior, not copy: aria-selected, aria-current, ids/
- Role — only scoped inside a testid'd container, never role + translated name as the primary hook.
What it can do on your machine
Read from SKILL.md and the folder at commit 2e6b92a. 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 typescript and mdl).
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
Browser E2E Tests loads about 2k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 766 words of instructions outside code blocks.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 766 words (~1,979 tokens).
“Browser e2e drives the real Composer app in a browser — the only tier that verifies perceived behavior: interactivity during async work, no false empty states, and full click→render flows. Distinct from agent-eval-tests (the LLM agent harness) and storybook interaction…”
- name
- browser-e2e-tests
Files
Just SKILL.md in .agents/skills/browser-e2e-tests of dxos/dxos.
Open the folder on GitHubat commit 2e6b92a
Compare with similar skills
Browser E2E Tests 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Browser E2E Tests this skilldxos/dxos | 525 | — | ~2k | Automated safety check: Pass | Custom licence | |
| Web Application Testinganthropics/skills | 180k | 51 repos | ~966 | Automated safety check: Pass | Apache-2.0 | |
| Write and Verify Playwright Testsappsmithorg/appsmith | 41k | — | ~2.9k | Automated safety check: Notes | Apache-2.0 | |
| playwright-cli Browser Automationgithub/gh-aw | 5.4k | 23 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Cucumber and Playwright E2E Testslanggenius/dify | 158k | — | ~682 | Automated safety check: Pass | Custom licence | |
| E2E Testinglangflow-ai/langflow | 155k | — | ~3.3k | Automated safety check: Pass | MIT |
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Write and Verify Playwright Tests
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Writes a Playwright end-to-end test from a prompt, runs it against a live Appsmith deployment and retries with fixes up to three times until it passes.
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github/gh-aw
Drives a real browser from the command line with playwright-cli to open pages, interact, mock requests, save state and work with Playwright tests.
Cucumber and Playwright E2E Tests
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Guides changes and reviews of the Cucumber and Playwright end-to-end suite under `e2e/`: feature files, step definitions, support code, tags, locators and assertions.
E2E Testing
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Write and review Playwright E2E tests for Langflow. An agent skill from langflow-ai/langflow.
Handsontable Playwright E2E Tests
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Guides writing and changing Playwright end-to-end tests for Handsontable using page objects, data-testid hooks and deterministic waits.
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Related
Works with
Categories
Questions about Browser E2E Tests
What does Browser E2E Tests do?
Authoring browser end-to-end tests for the Composer app with Playwright. Browser E2E Tests is an agent skill from dxos/dxos. Authoring browser end-to-end tests for the Composer app with Playwright.
When should I use Browser E2E Tests?
Browser E2E Tests fits situations like: reviewing .spec.ts under packages/apps/composer-app/src/playwright; adding page-object helpers; deciding how to target elements (always data-testid; never labels/roles).
How do I install Browser E2E Tests in Claude Code?
Run `npx skills add dxos/dxos --skill browser-e2e-tests -a claude-code`. Or copy the skill folder (.agents/skills/browser-e2e-tests in dxos/dxos) into .claude/skills/browser-e2e-tests in your project. Claude Code loads it when a task matches its description.
How do I install Browser E2E Tests in Codex?
Run `npx skills add dxos/dxos --skill browser-e2e-tests -a codex`. Or copy the skill folder (.agents/skills/browser-e2e-tests in dxos/dxos) into .agents/skills/browser-e2e-tests in your project. Codex loads it when a task matches its description.
Can I use Browser E2E Tests 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 dxos/dxos --skill browser-e2e-tests -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/browser-e2e-tests, .gemini/skills/browser-e2e-tests, .github/skills/browser-e2e-tests and .opencode/skills/browser-e2e-tests in your project.
What does Browser E2E Tests need to run?
SKILL.md names no scripts, command-line tools or credentials: Browser E2E Tests is instructions for the agent only.
Does Browser E2E Tests 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 Browser E2E Tests 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 Browser E2E Tests use?
Browser E2E Tests has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Browser E2E Tests use?
About 2k tokens (SKILL.md is roughly 7.9k 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 Browser E2E Tests?
Skills that share tags, products or a category with Browser E2E Tests: Web Application Testing (anthropics/skills, 180k stars), Write and Verify Playwright Tests (appsmithorg/appsmith, 41k stars), playwright-cli Browser Automation (github/gh-aw, 5.4k stars) and Cucumber and Playwright E2E Tests (langgenius/dify, 158k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Browser E2E Tests?
dxos (a GitHub organization) maintains it in dxos/dxos, which has 525 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 9, 2026.
Source: dxos/dxos on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.