Node capability

Node support is an installed capability, not a source surface.

Authored source uses standard module specifiers:

import { mkdirSync, readFileSync, rmSync } from "node:fs";
import { join } from "node:path";
import process from "node:process";

const root = join(process.cwd(), ".generated");
mkdirSync(root, { recursive: true });
const text = readFileSync(join(root, "input.txt"), "utf8");
rmSync(root, { recursive: true, force: true });

Installing the capability:

• activates only modules whose exact imports are present;
• does not activate the JavaScript source profile;
• contributes target runtime/project references explicitly;
• maps declarations through provider/module/export/member/signature identity;
• rejects unavailable Node behavior without source-name fallback.

The capability families include the supported portions of node:fs, node:fs/promises, node:path, node:process, node:os, node:url, Buffer, HTTP, crypto, zlib, streams, timers, assertions, and utilities. Exact per-target coverage is documented in:

• C# Node support
• Rust Node support

An API absent from a target’s inventory is not silently emulated.