ListSideEffects

To detect module-level side effects in TypeScript, you can use static analysis pattern scanning to identify top-level initialization, global mutations, and I/O operations that execute when a module is loaded. This produces a structured report classifying findings by type and risk for remediation.

Module-level side effects hinder testing and refactoring because top-level initialization and global mutations execute upon import, creating unpredictable state and I/O dependencies. This makes modules harder to isolate in tests and riskier to rewrite or refactor without introducing regressions.

The best way to find top-level initialization and global mutations is pattern-based static analysis, which scans for immediate function calls, global object access, and module-state mutations at import time, then outputs a context-rich report to prioritize fixes.

Yes, you can integrate side effect detection into CI and dev workflows to prevent regressions during refactors or rewrites. Scanning modules for import-time side effects produces a structured report that helps enforce safer testing and code predictability.

This static analysis targets both JavaScript and TypeScript projects. It identifies immediate function calls, global access, I/O operations, and module-state mutations at the module scope to produce context-rich reports for safer testing.

Detected module import side effects are classified by type and risk level to help prioritize fixes. The tool generates a structured remediation report containing the classification alongside context lines showing exactly where each side effect occurs.