qa-testing

Skill do QA Engineer para testes unitarios, integracao e E2E. Use quando precisar escrever testes, validar regressao, revisar cobertura, configurar estrategia de QA, ou evidenciar qualidade antes de release. Trigger em: "teste", "test", "QA", "Playwright", "Vitest", "Jest", "E2E", "coverage", "mock", "fixture", "regressao", "teste de integracao", "testing library".

1.16x

Quality

67%

Does it follow best practices?

Impact

85%

1.16x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/05-qa-testing/SKILL.md

Evaluation results

95%

11%

Strengthen Test Quality for a TypeScript Utility Library

Mutation testing setup for TS project

Criteria

Without context

With context

Correct mutation package

100%

Stryker config file

100%

Run command documented

100%

Score threshold: excellent

42%

100%

Score threshold: weak

42%

100%

Survived mutants explained

100%

CI schedule: daily not per commit

100%

CI minimum threshold

100%

Coverage prerequisite explained

37%

Coverage vs mutation distinction

100%

Vitest/TS runner configuration

100%

62%

25%

Fix Intermittent Test Failures in a SQLite-Backed API

SQLite WAL teardown fix in tests

Criteria

Without context

With context

db.close() before setTimeout

setTimeout delay ≥ 200ms

Cleans up WAL file

100%

Cleans up SHM file

100%

Error-tolerant unlink

66%

100%

Existing tests preserved

100%

EBUSY cause documented

100%

Deferred approach explained

20%

99%

-1%

QA Review: Payment Processing Feature

QA test suite and handoff document

Criteria

Without context

With context

External deps mocked

100%

Happy path: charge

100%

Error case: charge

100%

Happy path: refund

100%

Error case: refund

100%

Regression scenario present

100%

Observable behavior focus

100%

Handoff: overall result

100%

Handoff: covered scenarios and gaps

100%

Handoff: flakiness and residual risk

100%

No unnecessary comments

100%

85%

Deterministic test data

100%

Repository: felvieira/claude-skills-fv
Commit: 7577622

Evaluated: 3 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Strengthen Test Quality for a TypeScript Utility Library Fix Intermittent Test Failures in a SQLite-Backed API QA Review: Payment Processing Feature

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