Effect‑TS/TSGO is a wrapper around the TypeScript‑Go language server that adds a full‑featured **Effect‑TS** language service. It supplies Effect‑TS‑specific diagnostics, quick‑fixes, refactors, completions and other IDE assistance (especially for Effect V3 and V4), and is installed via a single npm CLI command. The tool is aimed at developers writing applications with the Effect‑TS functional library who want compile‑time safety and editor support integrated into their TypeScript workflow.