diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b6023c2..2b27c53 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -43,9 +43,9 @@ jobs:
           body: |
             Obsidian plugin release for Discord Syntax.
 
-            Plugin ID: discord-syntax
+            Plugin ID: md-discord-syntax
 
-            Install by copying main.js, manifest.json, and styles.css into .obsidian/plugins/discord-syntax/.
+            Install by copying main.js, manifest.json, and styles.css into .obsidian/plugins/md-discord-syntax/.
           files: |
             packages/obsidian/main.js
             packages/obsidian/manifest.json
diff --git a/eslint.config.mjs b/eslint.config.mjs
index e5eb161..60575a3 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -7,6 +7,8 @@ export default tseslint.config(
       "**/dist/**",
       "packages/obsidian/main.js",
       "packages/obsidian/styles.css",
+      "**/*.mjs",
+      "**/*.js",
     ],
   },
   eslint.configs.recommended,
diff --git a/manifest.json b/manifest.json
index 774bebd..af304ad 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
-  "id": "discord-syntax",
+  "id": "md-discord-syntax",
   "name": "Discord Syntax",
-  "version": "1.0.21",
+  "version": "1.0.22",
   "minAppVersion": "0.15.0",
   "description": "Discord-style `||spoiler||` and `-# subtext` markdown formatting extension.",
   "author": "Edems-DEV",
diff --git a/package.json b/package.json
index bbf874d..15203e4 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "build": "npm run build --workspaces --if-present",
     "pretest": "npm run build -w @edems-dev/md-discord-syntax-core",
     "test": "npm run test --workspaces --if-present",
-    "lint": "eslint \"packages/**/src/**/*.ts\"",
+    "lint": "eslint .",
     "pretypecheck": "npm run build -w @edems-dev/md-discord-syntax-core",
     "typecheck": "npm run typecheck --workspaces --if-present",
     "validate": "node scripts/validate.js",
diff --git a/packages/core/tests/core.test.ts b/packages/core/tests/core.test.ts
index 9311270..cf9d9ad 100644
--- a/packages/core/tests/core.test.ts
+++ b/packages/core/tests/core.test.ts
@@ -2,14 +2,12 @@ import test from "node:test";
 import assert from "node:assert";
 import {
   findSpoilerRanges,
-  findCodeRanges,
-  isPosInCode,
   isSubtextLine,
   stripSubtextPrefix,
   hasSubtextMarker,
 } from "../src/index.js";
 
-test("Core Spoiler & Subtext Syntax Rules", async (t) => {
+void test("Core Spoiler & Subtext Syntax Rules", async (t) => {
   await t.test("detects basic spoiler range", () => {
     const text = "Hello ||secret|| world";
     const spoilers = findSpoilerRanges(text);
diff --git a/packages/obsidian/manifest.json b/packages/obsidian/manifest.json
index 774bebd..af304ad 100644
--- a/packages/obsidian/manifest.json
+++ b/packages/obsidian/manifest.json
@@ -1,7 +1,7 @@
 {
-  "id": "discord-syntax",
+  "id": "md-discord-syntax",
   "name": "Discord Syntax",
-  "version": "1.0.21",
+  "version": "1.0.22",
   "minAppVersion": "0.15.0",
   "description": "Discord-style `||spoiler||` and `-# subtext` markdown formatting extension.",
   "author": "Edems-DEV",
diff --git a/packages/obsidian/package.json b/packages/obsidian/package.json
index 61b7e75..d5c8614 100644
--- a/packages/obsidian/package.json
+++ b/packages/obsidian/package.json
@@ -1,6 +1,6 @@
 {
-  "name": "discord-syntax",
-  "version": "1.0.21",
+  "name": "md-discord-syntax",
+  "version": "1.0.22",
   "description": "Discord Syntax Obsidian plugin adapter",
   "private": true,
   "main": "main.js",
diff --git a/packages/obsidian/src/main.ts b/packages/obsidian/src/main.ts
index 833fcb0..d0c21c1 100644
--- a/packages/obsidian/src/main.ts
+++ b/packages/obsidian/src/main.ts
@@ -14,10 +14,6 @@ interface ObsidianEditor {
   cm?: EditorView;
 }
 
-interface MarkdownPreviewView {
-  containerEl?: HTMLElement;
-}
-
 export default class DiscordSyntaxPlugin extends Plugin {
   onload() {
     // ── Reading View Post Processor ──────────────────────────────────────
@@ -42,9 +38,7 @@ export default class DiscordSyntaxPlugin extends Plugin {
 
         const mode = activeView.getMode();
         if (mode === "preview") {
-          const preview =
-            activeView.previewMode as unknown as MarkdownPreviewView;
-          const container = preview?.containerEl;
+          const container = activeView.previewMode?.containerEl;
           if (!container) return;
           const spoilers = container.querySelectorAll(
             ".note-flow-spoiler, .discord-syntax-spoiler",
@@ -76,7 +70,7 @@ export default class DiscordSyntaxPlugin extends Plugin {
             }
           }
         } else if (mode === "source") {
-          const editor = activeView.editor as unknown as ObsidianEditor;
+          const editor = activeView.editor as ObsidianEditor;
           const cm = editor.cm;
           if (
             !cm ||
diff --git a/packages/obsidian/src/spoiler-detector.ts b/packages/obsidian/src/spoiler-detector.ts
index e4b4f07..b6d05a6 100644
--- a/packages/obsidian/src/spoiler-detector.ts
+++ b/packages/obsidian/src/spoiler-detector.ts
@@ -82,8 +82,8 @@ export function getSpoilerAtSelection(state: EditorState): SpoilerRange | null {
   if (!selection.main.empty) return null;
   const pos = selection.main.head;
 
-  const text = state.doc.toString();
-  const spoilers = findSpoilerRanges(text);
+  const line = state.doc.lineAt(pos);
+  const spoilers = findSpoilerRanges(line.text, line.from);
   for (const s of spoilers) {
     if (pos >= s.from && pos <= s.to) {
       return s;
@@ -356,8 +356,8 @@ export const spoilerLivePreviewPlugin = ViewPlugin.fromClass(
 
         const pos = view.posAtCoords({ x: event.clientX, y: event.clientY });
         if (pos !== null) {
-          const text = view.state.doc.toString();
-          const spoilers = findSpoilerRanges(text);
+          const line = view.state.doc.lineAt(pos);
+          const spoilers = findSpoilerRanges(line.text, line.from);
           const spoiler = spoilers.find((s) => pos >= s.from && pos <= s.to);
 
           if (spoiler) {
@@ -414,9 +414,9 @@ export const spoilerLivePreviewPlugin = ViewPlugin.fromClass(
           if (spoilerId) {
             const fromStr = spoilerId.replace("spoiler-", "");
             const from = parseInt(fromStr, 10);
-            if (!isNaN(from)) {
-              const text = view.state.doc.toString();
-              const spoilers = findSpoilerRanges(text);
+            if (!isNaN(from) && from >= 0 && from <= view.state.doc.length) {
+              const line = view.state.doc.lineAt(from);
+              const spoilers = findSpoilerRanges(line.text, line.from);
               const spoiler = spoilers.find((s) => s.from === from);
               if (spoiler) {
                 const currentState = getSpoilerState(
diff --git a/packages/obsidian/src/spoiler-post-processor.ts b/packages/obsidian/src/spoiler-post-processor.ts
index ff65021..32ac0e9 100644
--- a/packages/obsidian/src/spoiler-post-processor.ts
+++ b/packages/obsidian/src/spoiler-post-processor.ts
@@ -1,29 +1,26 @@
-function createDetachedElement<K extends keyof HTMLElementTagNameMap>(
-  doc: Document,
-  tag: K,
-): HTMLElementTagNameMap[K] {
-  const fragment = doc.createDocumentFragment();
-  if (typeof fragment.createEl === "function") {
-    return fragment.createEl(tag);
-  }
-  return doc.createElement(tag);
-}
-
 export function processSpoilers(
   element: HTMLElement,
   doc: Document = element.ownerDocument,
 ): void {
   function createSpoilerSpan(): HTMLSpanElement {
-    const spoilerSpan = createDetachedElement(doc, "span");
-    spoilerSpan.classList.add("note-flow-spoiler", "discord-syntax-spoiler");
-    spoilerSpan.setAttribute("role", "button");
-    spoilerSpan.setAttribute("tabindex", "0");
-    spoilerSpan.setAttribute("aria-expanded", "false");
-    spoilerSpan.setAttribute("aria-label", "Spoiler, click to reveal");
+    const spoilerSpan = element.createEl("span", {
+      cls: "note-flow-spoiler discord-syntax-spoiler",
+      attr: {
+        role: "button",
+        tabindex: "0",
+        "aria-expanded": "false",
+        "aria-label": "Spoiler, click to reveal",
+      },
+    });
+    if (spoilerSpan.parentNode) {
+      spoilerSpan.parentNode.removeChild(spoilerSpan);
+    }
 
-    const innerSpan = createDetachedElement(doc, "span");
-    innerSpan.setAttribute("aria-hidden", "true");
-    spoilerSpan.appendChild(innerSpan);
+    const innerSpan = spoilerSpan.createEl("span", {
+      attr: {
+        "aria-hidden": "true",
+      },
+    });
 
     function toggleSpoiler() {
       const isRevealed = spoilerSpan.classList.contains("is-revealed");
@@ -66,8 +63,12 @@ export function processSpoilers(
     if (beforeStr) {
       parent.insertBefore(doc.createTextNode(beforeStr), node);
     }
-    const marker = createDetachedElement(doc, "span");
-    marker.setAttribute("data-spoiler-marker", "true");
+    const marker = element.createEl("span", {
+      attr: { "data-spoiler-marker": "true" },
+    });
+    if (marker.parentNode) {
+      marker.parentNode.removeChild(marker);
+    }
     parent.insertBefore(marker, node);
     markers.push(marker);
 
diff --git a/packages/obsidian/src/styles.css b/packages/obsidian/src/styles.css
index 6db945d..2b571cc 100644
--- a/packages/obsidian/src/styles.css
+++ b/packages/obsidian/src/styles.css
@@ -78,6 +78,7 @@
   * {
   color: transparent;
   -webkit-text-fill-color: transparent;
+  text-decoration: none;
   text-decoration-line: none;
   text-decoration-color: transparent;
   text-shadow: none;
diff --git a/packages/obsidian/tests/spoiler.test.ts b/packages/obsidian/tests/spoiler.test.ts
index 0cdc522..c7f40a3 100644
--- a/packages/obsidian/tests/spoiler.test.ts
+++ b/packages/obsidian/tests/spoiler.test.ts
@@ -11,7 +11,7 @@ import {
   findSpoilerRanges,
 } from "../src/spoiler-detector.js";
 
-test("Spoiler Detection & Live Preview", async (t) => {
+void test("Spoiler Detection & Live Preview", async (t) => {
   await t.test("detects basic spoiler range", () => {
     const text = "Hello ||secret|| world";
     const ranges = findSpoilerRanges(text);
@@ -102,7 +102,7 @@ test("Spoiler Detection & Live Preview", async (t) => {
         items.push({
           from: iter.from,
           to: iter.to,
-          value: iter.value as unknown as DecoItem["value"],
+          value: iter.value,
         });
         iter.next();
       }
diff --git a/packages/obsidian/tests/subtext.test.ts b/packages/obsidian/tests/subtext.test.ts
index 47d5f68..cd05d62 100644
--- a/packages/obsidian/tests/subtext.test.ts
+++ b/packages/obsidian/tests/subtext.test.ts
@@ -2,7 +2,7 @@ import test from "node:test";
 import assert from "node:assert";
 import { processSubtextParagraph } from "../src/subtext-post-processor.js";
 
-test("Subtext Reading View Post Processor", async (t) => {
+void test("Subtext Reading View Post Processor", async (t) => {
   await t.test(
     "wraps paragraph starting with -# into discord-subtext span",
     () => {
diff --git a/packages/remark/tests/remark.test.ts b/packages/remark/tests/remark.test.ts
index 0e4cd3b..78b4f6a 100644
--- a/packages/remark/tests/remark.test.ts
+++ b/packages/remark/tests/remark.test.ts
@@ -12,7 +12,7 @@ interface TestNode {
   data?: Record<string, unknown>;
 }
 
-test("Remark Discord Syntax Plugin", async (t) => {
+void test("Remark Discord Syntax Plugin", async (t) => {
   const processor = remark().use(remarkMdDiscordSyntax);
 
   await t.test("transforms discord-style spoilers (plain)", async () => {
diff --git a/scripts/validate.js b/scripts/validate.js
index d5fb2e7..387c4e8 100644
--- a/scripts/validate.js
+++ b/scripts/validate.js
@@ -36,9 +36,9 @@ try {
 }
 
 // Ensure Obsidian plugin details
-if (manifest.id !== "discord-syntax") {
+if (manifest.id !== "md-discord-syntax") {
   exitWithError(
-    `manifest.json id must be "discord-syntax", got "${manifest.id}"`,
+    `manifest.json id must be "md-discord-syntax", got "${manifest.id}"`,
   );
 }
 if (manifest.name !== "Discord Syntax") {
@@ -110,9 +110,9 @@ try {
   );
 }
 
-if (obsidianPkg.name !== "discord-syntax") {
+if (obsidianPkg.name !== "md-discord-syntax") {
   exitWithError(
-    `packages/obsidian/package.json name must be "discord-syntax", got "${obsidianPkg.name}"`,
+    `packages/obsidian/package.json name must be "md-discord-syntax", got "${obsidianPkg.name}"`,
   );
 }