bmad-labs

E2E and integration testing for TypeScript/NestJS projects using Jest, supertest, and real infrastructure via Docker (Kafka, PostgreSQL, MongoDB, Redis) with the Given-When-Then pattern. Use whenever the user is working on .e2e-spec.ts files or anything under test/e2e/, or asks to set up, write, review, run, debug, or optimize E2E or integration tests — including flaky tests, docker-compose for tests, Kafka/Redpanda consumers, test isolation, or GWT compliance.

Clean Code for TypeScript — code smell catalogs (Martin's per-line heuristics, Fowler's change-shape smells, TypeScript-native type smells), a linter-first detection policy, and step-by-step review, refactoring, TDD, and estimation workflows. Use when the user: - Writes, reviews, or refactors TypeScript/JavaScript code, or asks whether code is clean, maintainable, or well-designed - Names a smell — Shotgun Surgery, Feature Envy, Data Clumps, Long Method, Divergent Change, Duplicated Code, Large Class, Long Parameter List, Primitive Obsession, Message Chains, Dead Code, Speculative Generality, god class, copy-paste, stringly typed, premature abstraction - Asks about TypeScript type hygiene — any leakage, as assertions, non-null !, discriminated unions, exhaustiveness, strict flags, branded types - Asks what to enforce with lint or tsconfig versus what needs judgment, or names knip, jscpd, dependency-cruiser, typescript-eslint, type-coverage - Runs TDD, fixes a bug with test covera

Unit testing for TypeScript/NestJS projects using Jest, @golevelup/ts-jest (DeepMocked/createMock), and in-memory databases, with AAA structure. Use whenever the user is working on .spec.ts files or asks to set up Jest, write/add tests for a service/usecase/controller/guard/interceptor/pipe/filter, mock dependencies, review test quality or coverage, run unit tests, debug failing or flaky tests, or optimize test performance and open handles.