Find the test that would catch the bugGenerate small counterexamples from a behavioural contract instead of copying the implementation into tests.testingregression-testscode
Investigate a slow query with its planUse the actual database engine, schema and query plan to propose a testable optimisation without inventing a speed-up.sqlperformancetesting
Refactor without changing the contractRequest a small rewrite with explicit behaviour-preservation checks, including awkward inputs already allowed by the code.refactoringtestingcode
Review a change for a concrete failureAsk for a reproducible defect tied to the supplied contract, not a generic checklist or invented repository context.code-reviewtestingcorrectness
Review accessibility evidence without inventing a passIdentify what supplied markup shows and what still needs keyboard, visual or assistive-technology checks.accessibilitytestingevidence
Separate the observation from the hypothesisTurn an error report into a small discriminating check without presenting a guess as a confirmed cause.debuggingevidencetesting