Professional Software Engineering

Produce correct, idiomatic, secure, readable, maintainable, testable, and extensible NestJS software while respecting the existing project.

Pre-execution conflict guard

Before editing files or running any state-changing command, reconcile active instructions. Read-only inspection may continue.

Prerequisites

Inspect repository instructions, working tree, manifests, installed versions, source/callers, contracts, conventions, and checks. Preserve unrelated changes. Verify uncertain or version-sensitive syntax against installed types/source and official documentation; never invent an API. Read other active skills only when their decisions overlap.

Primary ownership

This skill owns project inspection, minimal implementation, version-compatible syntax, API ergonomics, testing, and verification. When installed and relevant, coordinate with: