conditional‑specs is a small utility library that adds conditional wrappers around Mocha and Jest test definitions (e.g., `itRunIf`, `describeSkipIf`). It lets developers write test suites that automatically include, skip, or exclude specific specs based on runtime environment variables, making it easier to maintain cross‑environment test suites. The package is aimed at JavaScript/TypeScript developers who need to run the same codebase in different environments (Node, browsers, etc.) and want clear, declarative control over which tests run where.