Skill Claude CodeCodex
Test web UIs for accessibility to WCAG 2.2 AA with axe-core automation plus the manual keyboard, focus, and screen-reader checks automation can't catch. Use when adding a11y assertions to a suite, auditing a page or component, wiring a11y into CI, or reviewing UI for WCAG conformance. Enforces guardrails against…
Skill Claude CodeCodex
Design and implement API contract tests so a provider can't break its consumers. Enforces guardrails against exact-value matching, unversioned pacts, contract tests that are secretly E2E, and deploys that ship without a can-i-deploy gate. Use when adding contract tests, choosing between consumer-driven (Pact) and…
Skill Claude CodeCodex
Detect, quantify, classify, and fix flaky tests — compute flake rate and per-test flake scores, reproduce non-determinism, classify the root cause, and either fix at the root or quarantine with an owner + issue + SLA. Use when tests pass-on-retry, fail intermittently in CI, or someone reaches for retries to make the…
Skill Claude CodeCodex
Measure and improve the effectiveness of Jest unit tests using code coverage plus mutation testing (Stryker). Enforces guardrails against coverage theater — assertion-free tests, gamed mutation scores, ignored survivors — and gates CI on a mutation break threshold, not just coverage %. Use when asked to "check test…
Skill Claude CodeCodex
Author LLM/RAG/agent evaluation suites in DeepEval that prove a feature is correct with gated numbers, not vibes. Use when asked to "eval an LLM", "test a prompt", "measure RAG quality", "check for hallucination", "score answer relevancy", "verify tool calls", or gate a release on model output quality. Ships the…
Skill Claude CodeCodex
Design and run performance tests that prove a system meets its SLOs under realistic load — backend load/stress/soak/spike with k6 and frontend web-vitals with Lighthouse. Use when asked to "load test", "check performance", "find our capacity", "set a latency budget", or gate a release on speed and scale. Enforces…
Skill Claude CodeCodex
Convert existing imperative Playwright tests into BDD using the playwright-bdd runner — generate Gherkin .feature files and wire step definitions to Playwright fixtures and page objects. Enforces business-language specs (declarative, not click-by-click). Use when asked to "move to BDD/Cucumber", "generate feature…
Skill Claude CodeCodex
Author and maintain resilient Playwright end-to-end tests using the Page Object Model, fixtures, and stable, user-facing locators. Enforces guardrails against flakiness, brittle selectors, and shared state. Use when writing, reviewing, or debugging Playwright E2E specs, or when wiring E2E tests into CI. See…
Skill Claude CodeCodex
Produce a tailored, risk-based QA strategy for a team or project. Use when asked to "create a QA strategy", "assess our testing approach", "build a test plan/roadmap", or decide what and how much to automate. Enforces guardrails against vanity coverage targets, big-bang rewrites, and metrics with no gate. First…
Skill Claude CodeCodex
Analyze a full-stack application (frontend, backend, middleware) and design a complete test pyramid — deciding exactly which tests belong in the FE, which in the BE, which at middleware/seams, and at what level (unit, integration/component, contract, E2E). Use when asked to "design a testing strategy for the whole…
Skill Claude CodeCodex
Audit an existing UI/E2E test suite for overuse and recommend which tests to move down to the API (or unit) layer. Works across Playwright, WebdriverIO, and Selenium/WebDriver in any language (TS/JS, Python, Java, C#, Ruby). Enforces guardrails — relocate coverage never delete it, name a specific target endpoint/unit…
Skill Claude CodeCodex
Set up reliable Playwright visual regression tests with toHaveScreenshot — deterministic screenshots, tuned thresholds, masked dynamic regions, component-scoped snapshots, and container-generated baselines. Enforces guardrails against laptop baselines, zero-threshold noise, blind --update-snapshots, and whole-page…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: