cordova platform ls shows nonsense www ^3.12.0 platform

$ cordova --version
8.0.0

$ cordova platform ls
Installed platforms:
 
Available platforms: 
 android ~7.0.0
 browser ~5.0.1
 ios ~4.5.4
 osx ~4.0.1
 windows ~5.0.0
 www ^3.12.0

$ cordova platform add www
(node:10383) UnhandledPromiseRejectionWarning: CordovaError: Error: npm: Command failed with exit code 1 Error output:
npm ERR! code ENOLOCAL
npm ERR! Could not install from "www" as it does not contain a package.json file.

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/brodybits/.npm/_logs/2018-01-04T04_21_59_700Z-debug.log
 at /Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/cordova-fetch/index.js:104:29
 at _rejected (/Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:864:24)
 at /Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:890:30
 at Promise.when (/Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:1142:31)
 at Promise.promise.promiseDispatch (/Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:808:41)
 at /Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:624:44
 at runSingle (/Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:137:13)
 at flush (/Users/brodybits/.nvs/node/9.3.0/x64/lib/node_modules/cordova/node_modules/q/q.js:125:13)
 at process._tickCallback (internal/process/next_tick.js:150:11)
(node:10383) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:10383) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.