NodeSecure · fraxken · Jul 10, 2026
diff --git a/.changeset/easy-schools-unite.md b/.changeset/easy-schools-unite.md
@@ -0,0 +1,5 @@
+---
+"@nodesecure/cli": major
+---
+
+Enable checkJS and add missing JSDoc and fix all application errors
diff --git a/eslint.config.mjs b/eslint.config.mjs
@@ -10,10 +10,13 @@ export default [
       jsdoc
     },
     rules: {
-      "jsdoc/no-undefined-types": ["warn", {
-        disableReporting: true,
-        markVariablesAsUsed: true
-      }]
+      "jsdoc/no-undefined-types": [
+        "warn", {
+          disableReporting: true,
+          markVariablesAsUsed: true
+        }
+      ],
+      "no-inline-comments": "off"
     }
   },
   {

diff --git a/workspaces/cli/package.json b/workspaces/cli/package.json
@@ -69,6 +69,7 @@
     "@openally/httpie": "1.1.2",
     "@playwright/test": "1.61.1",
     "@stylistic/stylelint-plugin": "5.1.0",
+    "@types/semver": "7.7.1",
     "esbuild": "0.28.1",
     "highlight.js": "11.11.1",
     "postcss-lit": "1.4.1",

diff --git a/workspaces/cli/public/common/utils.js b/workspaces/cli/public/common/utils.js
@@ -31,7 +31,7 @@ export function extractEmojis(strWithEmojis) {
  * @param {keyof HTMLElementTagNameMap} kind
  * @param {object} [options]
  * @param {string[]} [options.classList]
- * @param {HTMLElement[]} [options.childs]
+ * @param {(Node | null)[]} [options.childs]
  * @param {Record<string, any>} [options.attributes]
  * @param {Record<string, any>} [options.styles]
  * @param {string | null} [options.text]
@@ -136,7 +136,7 @@ export function parseRepositoryUrl(repository = {}, defaultValue = null) {
 
 /**
  * @param {string} title
- * @param {string} value
+ * @param {string | number} value
  * @param {Record<string, any>} options
  * @returns {HTMLElement}
  */
@@ -148,11 +148,12 @@ export function createLiField(title, value, options = {}) {
   let elementToAppend;
 
   if (isLink) {
-    const textValue = value.length > 26 ? `${value.slice(0, 26)}...` : value;
-    elementToAppend = createLink(value, textValue);
+    const href = /** @type {string} */ (value);
+    const textValue = href.length > 26 ? `${href.slice(0, 26)}...` : href;
+    elementToAppend = createLink(href, textValue);
   }
   else {
-    elementToAppend = createDOMElement("p", { text: value });
+    elementToAppend = createDOMElement("p", { text: String(value) });
   }
   liElement.appendChild(elementToAppend);
 
@@ -163,7 +164,7 @@ export function createLiField(title, value, options = {}) {
  * @param {HTMLElement} node - The parent DOM element.
  * @param {string[]} items - Array of strings to display.
  * @param {Object} [options] - Optional configuration options.
- * @param {Function} [options.onclick] - Callback function (event, item).
+ * @param {(event: Event, item: string) => void} [options.onclick] - Callback function (event, item).
  * @param {boolean} [options.hideItems] - Hide items if needed.
  * @param {number} [options.hideItemsLength] - Number of visible elements before masking.
  * @returns {void}
@@ -307,6 +308,48 @@ export function hideOnClickOutside(
   return outsideClickListener;
 }
 
+/**
+ * Returns the i18n dictionary for the given language (defaults to the current language).
+ *
+ * Works around `window.i18n`'s declared type being widened to `Record<string, unknown>`
+ * by a third-party ambient declaration (`@nodesecure/vis-network`'s `utils.d.ts`).
+ *
+ * @param {string} [lang]
+ * @returns {Record<string, Record<string, string>>}
+ */
+export function getI18n(lang = currentLang()) {
+  return /** @type {Record<string, Record<string, string>>} */ (
+    window.i18n[lang]
+  );
+}
+
+/**
+ * Returns the application settings config.
+ *
+ * Works around `window.settings`'s declared type being unreliably shadowed by a
+ * conflicting third-party ambient declaration (`@nodesecure/vis-network`'s
+ * `dataset.d.ts` declares `Window.settings: { config: { showFriendlyDependencies } }`).
+ *
+ * @returns {import("../types.js").AppConfig}
+ */
+export function getSettingsConfig() {
+  return /** @type {import("../types.js").AppConfig} */ (/** @type {unknown} */ (
+    window.settings.config
+  ));
+}
+
+/**
+ * `window.navigation` collides with the browser's native, read-only Navigation API.
+ * The app intentionally shadows it with its own `ViewNavigation` controller.
+ *
+ * @returns {import("../components/navigation/navigation.js").ViewNavigation}
+ */
+export function getNavigation() {
+  return /** @type {import("../components/navigation/navigation.js").ViewNavigation} */ (/** @type {unknown} */ (
+    window.navigation
+  ));
+}
+
 /** @returns {string} */
 export function currentLang() {
   const detectedLang = document.getElementById("lang")?.dataset.lang;

diff --git a/workspaces/cli/public/components/bundlephobia/bundlephobia.js b/workspaces/cli/public/components/bundlephobia/bundlephobia.js
@@ -84,11 +84,21 @@ class Bundlephobia extends LitElement {
     version: { type: String }
   };
 
+  constructor() {
+    super();
+    /** @type {string} */
+    this.name = "";
+    /** @type {string} */
+    this.version = "";
+  }
+
   #bunldeTask = new Task(this, {
     task: async([name, version]) => {
       const {
         gzip, size, dependencySizes
-      } = await getJSON(`/bundle/${this.#httpName(name)}/${version}`);
+      } = /** @type {{ gzip: number, size: number, dependencySizes: { approximateSize: number }[] }} */ (
+        await getJSON(`/bundle/${this.#httpName(name)}/${version}`)
+      );
       const fullSize = dependencySizes.reduce((prev, curr) => prev + curr.approximateSize, 0);
 
       return {
@@ -100,6 +110,9 @@ class Bundlephobia extends LitElement {
     args: () => [this.name, this.version]
   });
 
+  /**
+   * @param {string} name
+   */
   #httpName(name) {
     return name.replaceAll("/", "%2F");
   }

diff --git a/workspaces/cli/public/components/command-palette/command-palette-panels.js b/workspaces/cli/public/components/command-palette/command-palette-panels.js
@@ -4,7 +4,7 @@ import { repeat } from "lit/directives/repeat.js";
 import { classMap } from "lit/directives/class-map.js";
 
 // Import Internal Dependencies
-import { currentLang } from "../../common/utils.js";
+import * as utils from "../../common/utils.js";
 import {
   FLAG_LIST,
   SIZE_PRESETS,
@@ -23,10 +23,29 @@ const kListTitleKeys = {
 };
 
 /**
- * @param {{ linker: Map, queries: Array, inputValue: string, onAdd: Function, onRemove: Function }} props
+ * @returns {Record<string, string>}
+ */
+function getSearchCommandI18n() {
+  return /** @type {Record<string, string>} */ (/** @type {unknown} */ (utils.getI18n().search_command));
+}
+
+/**
+ * @typedef {import("@nodesecure/vis-network").LinkerEntry} LinkerEntry
+ * @typedef {{ filter: string, value: string }} SearchQuery
+ * @typedef {{ display: string, value: string, hint?: string }} HelperValue
+ */
+
+/**
+ * @param {{
+ * linker: Map<number, LinkerEntry>,
+ * queries: SearchQuery[],
+ * inputValue: string,
+ * onAdd: (filter: string, value: string) => void,
+ * onRemove: (filter: string, value: string) => void
+ * }} props
  */
 export function renderFlagPanel({ linker, queries, inputValue, onAdd, onRemove }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
   const flagCounts = getFlagCounts(linker);
   const activeFlags = new Set(
     queries
@@ -65,10 +84,10 @@ export function renderFlagPanel({ linker, queries, inputValue, onAdd, onRemove }
 }
 
 /**
- * @param {{ activeFilter: string, onAdd: Function }} props
+ * @param {{ activeFilter: string, onAdd: (filter: string, value: string) => void }} props
  */
 export function renderRangePanel({ activeFilter, onAdd }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
   const isSizeFilter = activeFilter === "size";
   const presets = isSizeFilter ? SIZE_PRESETS : VERSION_PRESETS;
   const title = isSizeFilter ? i18n.section_size : i18n.section_version;
@@ -93,12 +112,19 @@ export function renderRangePanel({ activeFilter, onAdd }) {
 }
 
 /**
- * @param {{ linker: Map, activeFilter: string, helpers: Array, selectedIndex: number, onAdd: Function }} props
+ * @param {{
+ * linker: Map<number, LinkerEntry>,
+ * activeFilter: string,
+ * helpers: HelperValue[],
+ * selectedIndex: number,
+ * onAdd: (filter: string, value: string) => void
+ * }} props
  */
 export function renderListPanel({ linker, activeFilter, helpers, selectedIndex, onAdd }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
   const counts = getFilterValueCounts(linker, activeFilter);
-  const title = i18n[kListTitleKeys[activeFilter]] ?? activeFilter;
+  const titleI18nKey = /** @type {Record<string, string>} */ (kListTitleKeys)[activeFilter];
+  const title = i18n[titleI18nKey] ?? activeFilter;
 
   return html`
     <div class="section">
@@ -117,10 +143,10 @@ export function renderListPanel({ linker, activeFilter, helpers, selectedIndex,
 }
 
 /**
- * @param {{ helpers: Array, selectedIndex: number, onSelect: Function }} props
+ * @param {{ helpers: HelperValue[], selectedIndex: number, onSelect: (helper: HelperValue) => void }} props
  */
 export function renderFilterList({ helpers, selectedIndex, onSelect }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
 
   return html`
     <div class="section">
@@ -138,10 +164,13 @@ export function renderFilterList({ helpers, selectedIndex, onSelect }) {
 }
 
 /**
- * @param {{ presets: Array, onApply: Function }} props
+ * @param {{
+ * presets: { id: string, filter: string, value: string }[],
+ * onApply: (preset: { id: string, filter: string, value: string }) => void
+ * }} props
  */
 export function renderPresets({ presets, onApply }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
 
   return html`
     <div class="section">
@@ -161,10 +190,13 @@ export function renderPresets({ presets, onApply }) {
 }
 
 /**
- * @param {{ actions: Array<{ id: string, label: string, kbd: string|null }>, onExecute: Function }} props
+ * @param {{
+ * actions: { id: string, label: string, kbd: string|null }[],
+ * onExecute: (action: { id: string, label: string, kbd: string|null }) => void
+ * }} props
  */
 export function renderActions({ actions, onExecute }) {
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
 
   return html`
     <div class="section">
@@ -214,14 +246,19 @@ export function renderIgnorePanel({ title, items, ignored, onToggle }) {
 }
 
 /**
- * @param {{ results: Array, selectedIndex: number, helperCount: number, onFocus: Function }} props
+ * @param {{
+ * results: { id: string, flags: string, name: string, version: string }[],
+ * selectedIndex: number,
+ * helperCount: number,
+ * onFocus: (id: string) => void
+ * }} props
  */
 export function renderResults({ results, selectedIndex, helperCount, onFocus }) {
   if (results.length === 0) {
     return nothing;
   }
 
-  const i18n = window.i18n[currentLang()].search_command;
+  const i18n = getSearchCommandI18n();
 
   return html`
     <div class="section">