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Agent skill

E2E

by platformplatform in platformplatform/PlatformPlatform

Run end-to-end Playwright tests via the developer CLI. An agent skill from platformplatform/PlatformPlatform.

MITAuto-check passedTesting & QA

Install E2E

skills CLI
$ npx skills add platformplatform/PlatformPlatform --skill e2e -a claude-code

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

GitHub CLI
$ gh skill install platformplatform/PlatformPlatform e2e --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/platformplatform/PlatformPlatform.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/e2e .claude/skills/e2e && 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/

Facts

Skill name
e2e
GitHub stars
441
Token cost
~542 tokens
SKILL.md length
260 words
Files
1
Skills in repo
18
Repo updated
First seen
Licence
MIT

At a glance

Run end-to-end Playwright tests via the developer CLI. An agent skill from platformplatform/PlatformPlatform.

  • Tasks that involve End-to-end testing
  • SKILL.md covers Strategy: pick the smallest…, Flaky tests need load and Always pass --quiet
  • Calls dotnet
  • Tasks that involve Browser testing

What it does

E2E is an agent skill from platformplatform/PlatformPlatform. Run end-to-end Playwright tests via the developer CLI.

Its SKILL.md is about 540 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: A platform designed for building enterprise-grade, multi-tenant products using Azure, .NET, React, TypeScript, Infrastructure as Code, etc. The licence is MIT.

When your agent uses it

  • Tasks that involve End-to-end testing
  • Tasks that involve Browser testing

Example prompts

  • “/e2e”

What it can do on your machine

Read from SKILL.md and the folder at commit 269de1c. 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:

    • dotnet

    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

E2E loads about 542 tokens when it runs. Until then it costs about 15 tokens; SKILL.md has 260 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~15
When it runs · the whole SKILL.md, loaded when a task matches
~542

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 platformplatform/PlatformPlatform at commit 269de1c, republished under its MIT licence (© platformplatform). 260 words, ~542 tokens.

Download SKILL.mdSave it as .claude/skills/e2e/SKILL.md (or your agent's skills folder).
name
e2e
description
Run end-to-end Playwright tests via the developer CLI.

End-to-end Tests

bash
dotnet run --project developer-cli -- e2e [search-terms...] [--smoke] [--browser <name>] [--retries <n>] [--last-failed] [--only-changed] [--stop-on-first-failure] [--include-slow] [--self-contained-system <name>] [--no-wait-for-aspire] --quiet

Use developer-cli exactly as written - do not expand to an absolute worktree path.

  • search-terms - filter by test name, tag, or spec file
  • --smoke - smoke suite only
  • --browser <name> - chromium (default), firefox, webkit, safari, all
  • --retries <n> - max retries for flaky tests
  • --last-failed - re-run only the previous run's failures
  • --only-changed - only spec files with uncommitted changes
  • --stop-on-first-failure, -x - exit on first failure
  • --include-slow - include @slow-tagged tests (excluded by default)
  • --self-contained-system <name> - narrows to one SCS (e.g. main, account)
  • --no-wait-for-aspire - skip the Aspire readiness check (use only when Aspire is already up)

Aspire must be running. If not, start it via the aspire-restart skill first.

Strategy: pick the smallest run that proves the fix

E2E runs are slow. Never blindly run the full suite to verify a small change.

  • Verifying a recent edit? --only-changed.
  • After a fix? --last-failed.
  • Iterating on one test? Pass a search term: a name ("user management"), a tag, or a spec file.
  • Add --stop-on-first-failure (-x) when iterating so the run aborts on the first failure.
  • Expecting failures? Start with --smoke, get those green, then run the rest.
  • Only widen to firefox / webkit after chromium passes - and skip chromium on those runs (--browser firefox).

Flaky tests need load

A flaky test run in isolation often passes - the bug only shows under parallel load. Reproduce with the full file or suite before declaring it fixed.

Always pass --quiet

Without --quiet Playwright streams every step to the conversation. On success the CLI prints a single summary; on failure it prints the failed tests and where to find the report.

© platformplatform, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/e2e of platformplatform/PlatformPlatform.

Open the folder on GitHubat commit 269de1c

Compare with similar skills

E2E 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.

E2E compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
E2E this skillplatformplatform/PlatformPlatform441—~542Automated safety check: PassMIT
Web Application Testinganthropics/skills180k51 repos~966Automated safety check: PassApache-2.0
playwright-cli Browser Automationgithub/gh-aw5.4k24 repos~2.8kAutomated safety check: PassMIT
Write and Verify Playwright Testsappsmithorg/appsmith41k—~2.9kAutomated safety check: NotesApache-2.0
Cucumber and Playwright E2E Testslanggenius/dify158k—~682Automated safety check: PassCustom licence
E2E Testinglangflow-ai/langflow156k—~3.3kAutomated safety check: PassMIT

Similar skills

  • Web Application Testing

    anthropics/skills

    Official

    Tests local web applications with Python Playwright scripts, checking frontend behavior, capturing screenshots and reading browser console logs.

    180k GitHub starsUsed in 51 repos~966 tokens
    Testing & QAAuto-check passed

  • playwright-cli Browser Automation

    github/gh-aw

    Official

    Drives a real browser from the command line with playwright-cli to open pages, interact, mock requests, save state and work with Playwright tests.

    5.4k GitHub starsUsed in 24 repos~2.8k tokens
    Testing & QAAuto-check passed

  • Write and Verify Playwright Tests

    appsmithorg/appsmith

    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.

    41k GitHub stars~2.9k tokensUpdated today
    Testing & QAAuto-check: notes

  • Cucumber and Playwright E2E Tests

    langgenius/dify

    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.

    158k GitHub stars~682 tokensUpdated today
    Testing & QAAuto-check passed

  • E2E Testing

    langflow-ai/langflow

    Write and review Playwright E2E tests for Langflow. An agent skill from langflow-ai/langflow.

    156k GitHub stars~3.3k tokensUpdated today
    Testing & QAAuto-check passed

  • Handsontable Playwright E2E Tests

    handsontable/handsontable

    Guides writing and changing Playwright end-to-end tests for Handsontable using page objects, data-testid hooks and deterministic waits.

    22k GitHub stars~1.8k tokensUpdated today
    Testing & QAAuto-check passed

More from platformplatform/PlatformPlatform

All 18 skills in this repo

  • Create Prd

    platformplatform/PlatformPlatform

    Create a product requirement document (PRD) for a new feature.

    441 GitHub stars~3k tokensUpdated 14 days ago
    Auto-check passed

  • Rebuild Branch

    platformplatform/PlatformPlatform

    Rebuild a stale branch by cherry-picking each commit onto a fresh branch off main, using a ralph-loop to validate each commit (build, test, format, lint, optional e2e) before moving on.

    441 GitHub stars~2.1k tokensUpdated 14 days ago
    Auto-check: notes

  • Swc Plugin Compatibility

    platformplatform/PlatformPlatform

    Diagnose and fix Lingui SWC plugin compatibility errors with Next.js, Rspack, or other SWC runtimes.

    441 GitHub stars~873 tokensUpdated 14 days ago
    Auto-check passed

  • Aspire Restart

    platformplatform/PlatformPlatform

    Start or restart the .NET Aspire AppHost via the developer CLI.

    441 GitHub stars~415 tokensUpdated 14 days ago
    Auto-check passed

  • Commit

    platformplatform/PlatformPlatform

    Commit session changes to git. An agent skill from platformplatform/PlatformPlatform.

    441 GitHub stars~567 tokensUpdated 14 days ago
    Auto-check passed

  • Enhanced Message Context

    platformplatform/PlatformPlatform

    Provide additional context for messages based on the codebase and the context of the message to improve the quality of the translations.

    441 GitHub stars~1.6k tokensUpdated 14 days ago
    Auto-check passed

Works with

Categories

Questions about E2E

What does E2E do?

Run end-to-end Playwright tests via the developer CLI. An agent skill from platformplatform/PlatformPlatform. E2E is an agent skill from platformplatform/PlatformPlatform. Run end-to-end Playwright tests via the developer CLI.

When should I use E2E?

E2E fits situations like: tasks that involve End-to-end testing; tasks that involve Browser testing.

How do I install E2E in Claude Code?

Run `npx skills add platformplatform/PlatformPlatform --skill e2e -a claude-code`. Or copy the skill folder (.claude/skills/e2e in platformplatform/PlatformPlatform) into .claude/skills/e2e in your project. Claude Code loads it when a task matches its description.

How do I install E2E in Codex?

Run `npx skills add platformplatform/PlatformPlatform --skill e2e -a codex`. Or copy the skill folder (.claude/skills/e2e in platformplatform/PlatformPlatform) into .agents/skills/e2e in your project. Codex loads it when a task matches its description.

Can I use E2E 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 platformplatform/PlatformPlatform --skill e2e -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/e2e, .gemini/skills/e2e, .github/skills/e2e and .opencode/skills/e2e in your project.

What does E2E need to run?

Going by SKILL.md and its folder, E2E needs the command-line tools its instructions call (dotnet).

Does E2E 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 E2E 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 E2E use?

E2E 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 E2E use?

About 542 tokens (SKILL.md is roughly 2.2k 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 E2E?

Skills that share tags, products or a category with E2E: Web Application Testing (anthropics/skills, 180k stars), playwright-cli Browser Automation (github/gh-aw, 5.4k stars), Write and Verify Playwright Tests (appsmithorg/appsmith, 41k 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 E2E?

platformplatform (a GitHub organization) maintains it in platformplatform/PlatformPlatform, which has 441 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on September 24, 2026.

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