Use this skill when writing, reviewing, or refactoring Node.js code — modules, async flow, cancellation, file and process I/O, HTTP — on a current Node.js release.
Triggers: user mentions "Node", "Node.js", "ESM", "CommonJS", "require", "import", "fetch", "AbortSignal", "AbortController", "stream", "child_process", "spawn", "fs", "event loop".