e2e-test-specialist

e2e-test-specialist is a skill for Claude Code from k1lgor/virtual-company. It costs 41 tokens per session (3,205 once invoked), scanned A, original, MIT.

A method for writing and debugging end-to-end browser tests with Playwright, Cypress, or Cucumber. End-to-end tests imitate real user actions through an application, while visual regression testing compares its appearance over time.

In plain words
What is it for?
Use it to test checkout and other browser journeys, fix flaky tests, perform visual regression checks, and mock APIs for integration tests.
Why use it?
It helps verify complete user flows and prevents intermittent tests from making the test suite untrustworthy. It also supports checking that visual changes are intentional.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md.

Part of the virtual-company plugin — 27 skills, 1 command, 6 agents, 3 hooks shipped together

Good fit Use it to test checkout and other browser journeys, fix flaky tests, perform visual regression checks, and mock APIs for integration tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/k1lgor/virtual-company/22-e2e-test-specialist
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add k1lgor/virtual-company --skill 22-e2e-test-specialist
Clone the repo
git clone --depth 1 https://github.com/k1lgor/virtual-company

Made for: Claude Code.

Or install virtual-company, the plugin that ships this one along with the rest of its 27 skills, 1 command, 6 agents, 3 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for e2e-test-specialist

README.md
[![agentmods](https://agentmods.dev/badge/skills/k1lgor/virtual-company/22-e2e-test-specialist/github.svg)](https://agentmods.dev/skills/k1lgor/virtual-company/22-e2e-test-specialist)
Your own site
<a href="https://agentmods.dev/skills/k1lgor/virtual-company/22-e2e-test-specialist"><img src="https://agentmods.dev/badge/skills/k1lgor/virtual-company/22-e2e-test-specialist/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for e2e-test-specialist

Your own site · 80×15
<a href="https://agentmods.dev/skills/k1lgor/virtual-company/22-e2e-test-specialist"><img src="https://agentmods.dev/badge/skills/k1lgor/virtual-company/22-e2e-test-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,205 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.03205
Opus 5 $0.00020 $0.01603
Sonnet 5 $0.00008 $0.00641
Haiku 4.5 $0.00004 $0.00320

Measured 10d ago against content hash 66846b41ecd5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

e2e-test-specialist scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/22-e2e-test-specialist/SKILL.md · 340 lines

How it starts

The opening of the file, as written. The whole thing — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🎭 E2E Test Specialist / QA Automation

You are the Lead QA Automation Engineer. You build robust, browser-based tests that simulate real user behavior to ensure every critical path is functional.

🛑 The Iron Law

NO FLAKY TEST IN THE SUITE — FIX IT OR REMOVE IT

A flaky test is worse than no test. It erodes trust in the entire suite. If a test fails intermittently, it must be fixed immediately or quarantined. "Just retry it" is never the answer.

🛠️ Tool Guidance

  • Reproduction: Use Read to audit existing frontend components or page routes.
  • Recording: Use Edit to generate Playwright or Cypress spec files.
  • Verification: Use Bash to run tests and analyze output.

📍 When to Apply

  • "Write an E2E test for our checkout flow."
  • "Debug this flaky Playwright script."
  • "Perform a visual regression check on our new landing page."
  • "How do I mock our API for integration testing?"

Decision Tree: E2E Test Design

graph TD
    A[E2E Test Needed] --> B{Which framework?}
    B -->|Playwright| C[Use Page Object Model]
    B -->|Cypress| D[Use custom commands + selectors]
    B -->|Cucumber| E[Write Gherkin scenarios]
    C --> F[Use getByRole/getByLabel selectors]
    D --> F
    E --> F
    F --> G{Test stable 3x in a row?}
    G -->|No| H[Diagnose flakiness]
    H --> I{Cause?}
    I -->|Timing| J[Replace sleep with condition wait]
    I -->|Selector| K[Use more robust selector]
    I -->|State| L[Add proper setup/teardown]
    J --> G
    K --> G
    L --> G
    G -->|Yes| M[✅ Test ready to merge]

📜 Standard Operating Procedure (SOP)

Read the full file on GitHub · 340 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 340 lines · 41 tokens per session scan A 66846b41ecd5

Subscribe to this mod's changes

e2e-test-specialist is a skill published in the GitHub repository k1lgor/virtual-company (4 stars, last pushed 2mo ago), licensed MIT. It adds 41 tokens to every session and 3,205 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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