Convert markdownlint library to an ECMAScript module, replace markdownlint-micromark with micromark, stop publishing (large) markdownlint-browser.js, see https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c for guidance.

lib/md011.mjs

@@ -0,0 +1,54 @@
+// @ts-check
+
+import { addError, hasOverlap } from "../helpers/helpers.cjs";
+import { addRangeToSet } from "../helpers/micromark-helpers.cjs";
+import { filterByTypesCached } from "./cache.mjs";
+
+const reversedLinkRe = /(^|[^\\])\(([^()]+)\)\[([^\]^][^\]]*)\](?!\()/g;
+
+/** @type {import("./markdownlint.mjs").Rule} */
+export default {
+  "names": [ "MD011", "no-reversed-links" ],
+  "description": "Reversed link syntax",
+  "tags": [ "links" ],
+  "parser": "micromark",
+  "function": function MD011(params, onError) {
+    const codeBlockLineNumbers = new Set();
+    for (const codeBlock of filterByTypesCached([ "codeFenced", "codeIndented" ])) {
+      addRangeToSet(codeBlockLineNumbers, codeBlock.startLine, codeBlock.endLine);
+    }
+    const codeTexts = filterByTypesCached([ "codeText" ]);
+    for (const [ lineIndex, line ] of params.lines.entries()) {
+      const lineNumber = lineIndex + 1;
+      if (!codeBlockLineNumbers.has(lineNumber)) {
+        let match = null;
+        while ((match = reversedLinkRe.exec(line)) !== null) {
+          const [ reversedLink, preChar, linkText, linkDestination ] = match;
+          if (
+            !linkText.endsWith("\\") &&
+            !linkDestination.endsWith("\\")
+          ) {
+            const column = match.index + preChar.length + 1;
+            const length = match[0].length - preChar.length;
+            /** @type {import("../helpers/helpers.cjs").FileRange} */
+            const range = { "startLine": lineNumber, "startColumn": column, "endLine": lineNumber, "endColumn": column + length - 1 };
+            if (!codeTexts.some((codeText) => hasOverlap(codeText, range))) {
+              addError(
+                onError,
+                lineNumber,
+                reversedLink.slice(preChar.length),
+                undefined,
+                [ column, length ],
+                {
+                  "editColumn": column,
+                  "deleteCount": length,
+                  "insertText": `[${linkText}](${linkDestination})`
+                }
+              );
+            }
+          }
+        }
+      }
+    }
+  }
+};