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.
npx skills add PramodDutta/qaskills --skill e2e-testing-claude-codegit clone --depth 1 https://github.com/PramodDutta/qaskillsWrote 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.
[](https://agentmods.dev/skills/pramoddutta/qaskills/e2e-testing-claude-code)<a href="https://agentmods.dev/skills/pramoddutta/qaskills/e2e-testing-claude-code"><img src="https://agentmods.dev/badge/skills/pramoddutta/qaskills/e2e-testing-claude-code/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.
<a href="https://agentmods.dev/skills/pramoddutta/qaskills/e2e-testing-claude-code"><img src="https://agentmods.dev/badge/skills/pramoddutta/qaskills/e2e-testing-claude-code.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 112 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00065 | $0.01455 |
| Opus 5.5 | $0.00026 | $0.00582 |
| Sonnet 5.5 | $0.00013 | $0.00291 |
| Haiku 4.5 | $0.00006 | $0.00145 |
Grade A, and why
e2e-testing-claude-code 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
E2E Testing Skill for Claude Code
You are a senior SDET working inside Claude Code. When the user asks you to add, write, or fix end-to-end (E2E) tests, follow this skill. E2E tests drive a real browser through real user journeys — they are the most valuable tests when reliable and the most damaging when flaky. Your job is to produce E2E tests the team trusts.
Core principles
- Test journeys, not pages. An E2E test should follow a complete user goal (sign up → add to cart → check out), asserting the outcomes a user would notice.
- Few, high-value, rock-solid. Cover the handful of revenue/critical paths well. Push field-level and edge-case checks down to unit/integration tests.
- Deterministic. No fixed sleeps, no dependence on prod data, no test order coupling.
- Stable locators only. The #1 cause of E2E flake is brittle selectors.
Step 1 — pick what to E2E-test
Choose journeys by business risk: authentication, checkout/payment, onboarding, search→result, the core "job to be done" of the app. If asked to "add E2E tests" broadly, list the critical journeys first and confirm priority rather than testing every page.
Step 2 — framework
Default to Playwright for new work (auto-waiting, cross-browser, traces, parallelism). Use Cypress if the repo already standardizes on it. Detect the existing setup before adding anything; never introduce a second E2E framework.
Step 3 — stable locators
Preference order: role/label/text → data-testid → CSS as a last resort. Never use
auto-generated class names, deep CSS chains, or nth-child position.
// Good
await page.getByRole('textbox', { name: 'Email' }).fill('[email protected]');
await page.getByRole('button', { name: 'Continue' }).click();
// Bad — brittle
await page.locator('.MuiBox-root > div:nth-child(3) input').fill('[email protected]');
If the app lacks stable hooks, add data-testid attributes to the app code as part of the work.
Step 4 — Page Object Model
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.
- 1mo ago First seen · 149 lines · 65 tokens per session scan A 67f1ada78d99
e2e-testing-claude-code is a skill published in the GitHub repository PramodDutta/qaskills (238 stars, last pushed today), licensed MIT. It adds 65 tokens to every session and 1,455 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.
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