API testing and contract validation. Design and execute schema validation, contract tests, negative testing, and change safety for REST, GraphQL, and gRPC APIs. Use when you need API test plans, contract testing, or CI quality gates.
Mobile app testing strategy and execution for iOS and Android. Cover device matrix, automation frameworks, performance, reliability, and release gates. Use when you need cross platform mobile QA plans or mobile testing automation guidance.
Risk-based quality engineering test strategy across unit, integration, contract, E2E, performance, and security testing with shift-left gates, flake control, CI economics, and observability-first debugging.
Validate feature specs for relevance, edge cases, and compatibility with existing patterns. Use after creating a spec.
Expert test automation engineer specializing in building robust test frameworks, CI/CD integration, and comprehensive test coverage. Masters multiple automation tools and frameworks with focus on maintainable, scalable, and efficient automated testing solutions.
Use when building e2e tests with Playwright, under deadline pressure to ship incomplete coverage, or struggling with wait strategies and mock-vs-reality tradeoffs - provides patterns for edge case coverage, deterministic waits, and strategic mocking decisions
Validate implementation plans against specs. Use after creating a plan to ensure full spec coverage and no ambiguities.
End-to-end web application testing with Playwright: scope control, stable selectors, parallelization/sharding, flake control, network mocking vs real services, visual testing tradeoffs, and CI/CD integration.
iOS testing with XCTest/XCUITest on simulators and devices: layered strategy, determinism/flake control, device matrix selection, CI ergonomics, and repeatable simulator automation.
Test-Driven Development workflow coordinator. Detects TDD intent and offers guided red-green-refactor cycle. Activates for TDD, test-driven, red-green-refactor, write tests first, test-first development, Kent Beck, TDD cycle.
This skill should be used when the user asks to "run beta test cycle", "run next cycle", "test static patterns", "analyze test failures", "improve pass rate", or wants to systematically improve command generation quality through iterative testing and pattern refinement. Provides structured workflow for running test cycles, analyzing failures, implementing fixes, and documenting results.
QA Lead that creates test suites ONE FILE AT A TIME to prevent crashes. Handles test plans, test cases, testing strategies, quality gates. **CRITICAL CHUNKING RULE - Large test suites (15 files) done incrementally.** Activates for QA, quality assurance, testing, test strategy, test plan, test cases, unit tests, integration tests, E2E tests, end-to-end testing, Playwright, Jest, Mocha, Cypress, test automation, test coverage, regression, test-driven development, TDD, BDD, behavior-driven development, quality gates, acceptance criteria, test data, test scenarios, smoke tests, sanity tests, exploratory testing, write tests, create test suite, test file, spec file, describe block, it block, expect assertions, mock functions, test doubles, stubs, spies, test fixtures, setup teardown, beforeEach, afterEach, test report, coverage report.
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
Use when implementing features or fixing bugs - enforces RED-GREEN-REFACTOR cycle requiring tests to fail before writing code
Use when writing tests, improving coverage, or deciding what to test in this CLI
test-engineer skill Trigger terms: testing, unit tests, integration tests, E2E tests, test cases, test coverage, test automation, test plan, test design, TDD, test-first Use when: User requests involve test engineer tasks.
Web research using fetch_webpage and Playwright MCP tools in headless mode
Test-Driven Development (TDD) expertise covering red-green-refactor cycle, behavior-driven development, test-first design, refactoring with confidence, TDD best practices, TDD workflow, unit testing strategies, mock-driven development, test doubles, TDD patterns, SOLID principles through testing, emergent design, incremental development, TDD anti-patterns, and production-grade TDD practices. Activates for TDD, test-driven development, red-green-refactor, test-first, behavior-driven, BDD, refactoring, test doubles, mock-driven, test design, SOLID principles, emergent design, incremental development, TDD workflow, TDD best practices, TDD patterns, Kent Beck, Robert Martin, Uncle Bob, test-first design.
Comprehensive unit testing expertise covering Vitest, Jest, test-driven development (TDD), mocking strategies, test coverage, snapshot testing, test architecture, testing patterns, dependency injection, test doubles (mocks, stubs, spies, fakes), async testing, error handling tests, parametric testing, test organization, code coverage analysis, mutation testing, and production-grade unit testing best practices. Activates for unit testing, vitest, jest, test-driven development, TDD, red-green-refactor, mocking, stubbing, spying, test doubles, test coverage, snapshot testing, test architecture, dependency injection, async testing, test patterns, code coverage, mutation testing, test isolation, test fixtures, AAA pattern, given-when-then, test organization, testing best practices, vi.fn, vi.mock, vi.spyOn, describe, it, expect, beforeEach, afterEach.
