diff --git a/app/javascript/dashboard/components/widgets/WootWriter/Editor.vue b/app/javascript/dashboard/components/widgets/WootWriter/Editor.vue
index d26192bcd..850ca5f4b 100644
--- a/app/javascript/dashboard/components/widgets/WootWriter/Editor.vue
+++ b/app/javascript/dashboard/components/widgets/WootWriter/Editor.vue
@@ -55,6 +55,7 @@ import {
   getSelectionCoords,
   calculateMenuPosition,
   getEffectiveChannelType,
+  stripUnsupportedFormatting,
 } from 'dashboard/helper/editorHelper';
 import {
   hasPressedEnterAndNotCmdOrShift,
@@ -131,8 +132,10 @@ const editorMenuOptions = computed(() => {
 
 const createState = (content, placeholder, plugins = [], methods = {}) => {
   const schema = editorSchema.value;
+  // Strip unsupported formatting before parsing to prevent "Token type not supported" errors
+  const sanitizedContent = stripUnsupportedFormatting(content, schema);
   return EditorState.create({
-    doc: new MessageMarkdownTransformer(schema).parse(content),
+    doc: new MessageMarkdownTransformer(schema).parse(sanitizedContent),
     plugins: buildEditor({
       schema,
       placeholder,
diff --git a/app/javascript/dashboard/components/widgets/conversation/ReplyBox.vue b/app/javascript/dashboard/components/widgets/conversation/ReplyBox.vue
index aa67cda0b..a2e7fe103 100644
--- a/app/javascript/dashboard/components/widgets/conversation/ReplyBox.vue
+++ b/app/javascript/dashboard/components/widgets/conversation/ReplyBox.vue
@@ -7,9 +7,7 @@ import { useTrack } from 'dashboard/composables';
 import keyboardEventListenerMixins from 'shared/mixins/keyboardEventListenerMixins';
 import { FEATURE_FLAGS } from 'dashboard/featureFlags';
 
-import CannedResponse from './CannedResponse.vue';
 import ReplyToMessage from './ReplyToMessage.vue';
-import ResizableTextArea from 'shared/components/ResizableTextArea.vue';
 import AttachmentPreview from 'dashboard/components/widgets/AttachmentsPreview.vue';
 import ReplyTopPanel from 'dashboard/components/widgets/WootWriter/ReplyTopPanel.vue';
 import ReplyEmailHead from './ReplyEmailHead.vue';
@@ -46,7 +44,6 @@ import {
   appendSignature,
   removeSignature,
   getEffectiveChannelType,
-  extractTextFromMarkdown,
 } from 'dashboard/helper/editorHelper';
 
 import { LOCAL_STORAGE_KEYS } from 'dashboard/constants/localStorage';
@@ -72,8 +69,6 @@ export default {
     WhatsappTemplates,
     WootMessageEditor,
     QuotedEmailPreview,
-    ResizableTextArea,
-    CannedResponse,
   },
   mixins: [inboxMixin, fileUploadMixin, keyboardEventListenerMixins],
   props: {
@@ -114,8 +109,6 @@ export default {
       recordingAudioState: '',
       recordingAudioDurationText: '',
       replyType: REPLY_EDITOR_MODES.REPLY,
-      mentionSearchKey: '',
-      hasSlashCommand: false,
       bccEmails: '',
       ccEmails: '',
       toEmails: '',
@@ -148,9 +141,6 @@ export default {
       if (!senderId) return {};
       return this.$store.getters['contacts/getContact'](senderId);
     },
-    isRichEditorEnabled() {
-      return this.isAWebWidgetInbox || this.isAnEmailChannel || this.isAPIInbox;
-    },
     shouldShowReplyToMessage() {
       return (
         this.inReplyTo?.id &&
@@ -409,19 +399,6 @@ export default {
         !!this.quotedEmailText
       );
     },
-    showRichContentEditor() {
-      if (this.isOnPrivateNote || this.isRichEditorEnabled) {
-        return true;
-      }
-
-      return false;
-    },
-    // ensure that the signature is plain text depending on `showRichContentEditor`
-    signatureToApply() {
-      return this.showRichContentEditor
-        ? this.messageSignature
-        : extractTextFromMarkdown(this.messageSignature);
-    },
   },
   watch: {
     currentChat(conversation, oldConversation) {
@@ -464,25 +441,7 @@ export default {
         this.resetRecorderAndClearAttachments();
       }
     },
-    message(updatedMessage) {
-      // Check if the message starts with a slash.
-      const bodyWithoutSignature = removeSignature(
-        updatedMessage,
-        this.signatureToApply
-      );
-      const startsWithSlash = bodyWithoutSignature.startsWith('/');
-
-      // Determine if the user is potentially typing a slash command.
-      // This is true if the message starts with a slash and the rich content editor is not active.
-      this.hasSlashCommand = startsWithSlash && !this.showRichContentEditor;
-      this.showMentions = this.hasSlashCommand;
-
-      // If a slash command is active, extract the command text after the slash.
-      // If not, reset the mentionSearchKey.
-      this.mentionSearchKey = this.hasSlashCommand
-        ? bodyWithoutSignature.substring(1)
-        : '';
-
+    message() {
       // Autosave the current message draft.
       this.doAutoSaveDraft();
     },
@@ -532,20 +491,14 @@ export default {
   methods: {
     handleInsert(article) {
       const { url, title } = article;
-      if (this.isRichEditorEnabled) {
-        // Removing empty lines from the title
-        const lines = title.split('\n');
-        const nonEmptyLines = lines.filter(line => line.trim() !== '');
-        const filteredMarkdown = nonEmptyLines.join(' ');
-        emitter.emit(
-          BUS_EVENTS.INSERT_INTO_RICH_EDITOR,
-          `[${filteredMarkdown}](${url})`
-        );
-      } else {
-        this.addIntoEditor(
-          `${this.$t('CONVERSATION.REPLYBOX.INSERT_READ_MORE')} ${url}`
-        );
-      }
+      // Removing empty lines from the title
+      const lines = title.split('\n');
+      const nonEmptyLines = lines.filter(line => line.trim() !== '');
+      const filteredMarkdown = nonEmptyLines.join(' ');
+      emitter.emit(
+        BUS_EVENTS.INSERT_INTO_RICH_EDITOR,
+        `[${filteredMarkdown}](${url})`
+      );
 
       useTrack(CONVERSATION_EVENTS.INSERT_ARTICLE_LINK);
     },
@@ -614,26 +567,14 @@ export default {
       if (this.isPrivate) {
         return message;
       }
-      if (this.showRichContentEditor) {
-        const effectiveChannelType = getEffectiveChannelType(
-          this.channelType,
-          this.inbox?.medium || ''
-        );
-        return this.sendWithSignature
-          ? appendSignature(
-              message,
-              this.messageSignature,
-              effectiveChannelType
-            )
-          : removeSignature(
-              message,
-              this.messageSignature,
-              effectiveChannelType
-            );
-      }
+
+      const effectiveChannelType = getEffectiveChannelType(
+        this.channelType,
+        this.inbox?.medium || ''
+      );
       return this.sendWithSignature
-        ? appendSignature(message, this.signatureToApply)
-        : removeSignature(message, this.signatureToApply);
+        ? appendSignature(message, this.messageSignature, effectiveChannelType)
+        : removeSignature(message, this.messageSignature, effectiveChannelType);
     },
     removeFromDraft() {
       if (this.conversationIdByRoute) {
@@ -649,7 +590,6 @@ export default {
         Escape: {
           action: () => {
             this.hideEmojiPicker();
-            this.hideMentions();
           },
           allowOnFocusedInput: true,
         },
@@ -694,11 +634,6 @@ export default {
       // Don't handle paste if compose new conversation modal is open
       if (this.newConversationModalActive) return;
 
-      const data = e.clipboardData.files;
-      if (!this.showRichContentEditor && data.length !== 0) {
-        this.$refs.messageInput?.$el?.blur();
-      }
-
       // Filter valid files (non-zero size)
       Array.from(e.clipboardData.files)
         .filter(file => file.size > 0)
@@ -832,19 +767,15 @@ export default {
         // if signature is enabled, append it to the message
         // appendSignature ensures that the signature is not duplicated
         // so we don't need to check if the signature is already present
-        if (this.showRichContentEditor) {
-          const effectiveChannelType = getEffectiveChannelType(
-            this.channelType,
-            this.inbox?.medium || ''
-          );
-          message = appendSignature(
-            message,
-            this.messageSignature,
-            effectiveChannelType
-          );
-        } else {
-          message = appendSignature(message, this.signatureToApply);
-        }
+        const effectiveChannelType = getEffectiveChannelType(
+          this.channelType,
+          this.inbox?.medium || ''
+        );
+        message = appendSignature(
+          message,
+          this.messageSignature,
+          effectiveChannelType
+        );
       }
 
       const updatedMessage = replaceVariablesInMessage({
@@ -868,52 +799,30 @@ export default {
       });
       if (canReply || this.isAWhatsAppChannel || this.isAPIInbox)
         this.replyType = mode;
-      if (this.showRichContentEditor) {
-        if (this.isRecordingAudio) {
-          this.toggleAudioRecorder();
-        }
-        return;
+      if (this.isRecordingAudio) {
+        this.toggleAudioRecorder();
       }
-      this.$nextTick(() => this.$refs.messageInput.focus());
     },
     clearEditorSelection() {
       this.updateEditorSelectionWith = '';
     },
-    insertIntoTextEditor(text, selectionStart, selectionEnd) {
-      const { message } = this;
-      const newMessage =
-        message.slice(0, selectionStart) +
-        text +
-        message.slice(selectionEnd, message.length);
-      this.message = newMessage;
-    },
     addIntoEditor(content) {
-      if (this.showRichContentEditor) {
-        this.updateEditorSelectionWith = content;
-        this.onFocus();
-      }
-      if (!this.showRichContentEditor) {
-        const { selectionStart, selectionEnd } = this.$refs.messageInput.$el;
-        this.insertIntoTextEditor(content, selectionStart, selectionEnd);
-      }
+      this.updateEditorSelectionWith = content;
+      this.onFocus();
     },
     clearMessage() {
       this.message = '';
       if (this.sendWithSignature && !this.isPrivate) {
         // if signature is enabled, append it to the message
-        if (this.showRichContentEditor) {
-          const effectiveChannelType = getEffectiveChannelType(
-            this.channelType,
-            this.inbox?.medium || ''
-          );
-          this.message = appendSignature(
-            this.message,
-            this.messageSignature,
-            effectiveChannelType
-          );
-        } else {
-          this.message = appendSignature(this.message, this.signatureToApply);
-        }
+        const effectiveChannelType = getEffectiveChannelType(
+          this.channelType,
+          this.inbox?.medium || ''
+        );
+        this.message = appendSignature(
+          this.message,
+          this.messageSignature,
+          effectiveChannelType
+        );
       }
       this.attachedFiles = [];
       this.isRecordingAudio = false;
@@ -948,9 +857,6 @@ export default {
         this.toggleEmojiPicker();
       }
     },
-    hideMentions() {
-      this.showMentions = false;
-    },
     onTypingOn() {
       this.toggleTyping('on');
     },
@@ -1197,13 +1103,6 @@ export default {
         :message="inReplyTo"
         @dismiss="resetReplyToMessage"
       />
-      <CannedResponse
-        v-if="showMentions && hasSlashCommand"
-        v-on-clickaway="hideMentions"
-        class="normal-editor__canned-box"
-        :search-key="mentionSearchKey"
-        @replace="replaceText"
-      />
       <EmojiInput
         v-if="showEmojiPicker"
         v-on-clickaway="hideEmojiPicker"
@@ -1227,23 +1126,7 @@ export default {
         @play="recordingAudioState = 'playing'"
         @pause="recordingAudioState = 'paused'"
       />
-      <ResizableTextArea
-        v-else-if="!showRichContentEditor"
-        ref="messageInput"
-        v-model="message"
-        class="rounded-none input"
-        :placeholder="messagePlaceHolder"
-        :min-height="4"
-        :signature="signatureToApply"
-        allow-signature
-        :send-with-signature="sendWithSignature"
-        @typing-off="onTypingOff"
-        @typing-on="onTypingOn"
-        @focus="onFocus"
-        @blur="onBlur"
-      />
       <WootMessageEditor
-        v-else
         v-model="message"
         :editor-id="editorStateId"
         class="input popover-prosemirror-menu"
@@ -1369,10 +1252,6 @@ export default {
 
 .reply-box__top {
   @apply relative py-0 px-4 -mt-px;
-
-  textarea {
-    @apply shadow-none outline-none border-transparent bg-transparent m-0 max-h-60 min-h-[3rem] pt-4 pb-0 px-0 resize-none;
-  }
 }
 
 .emoji-dialog {
@@ -1392,9 +1271,4 @@ export default {
     @apply ltr:left-1 rtl:right-1 -bottom-2;
   }
 }
-
-.normal-editor__canned-box {
-  width: calc(100% - 2 * 1rem);
-  left: 1rem;
-}
 </style>
diff --git a/app/javascript/dashboard/components/widgets/mentions/MentionBox.vue b/app/javascript/dashboard/components/widgets/mentions/MentionBox.vue
index 999ec758d..dc00bdb4c 100644
--- a/app/javascript/dashboard/components/widgets/mentions/MentionBox.vue
+++ b/app/javascript/dashboard/components/widgets/mentions/MentionBox.vue
@@ -1,6 +1,7 @@
 <script setup>
 import { ref, watch, computed, nextTick } from 'vue';
 import { useKeyboardNavigableList } from 'dashboard/composables/useKeyboardNavigableList';
+import { useMessageFormatter } from 'shared/composables/useMessageFormatter';
 
 const props = defineProps({
   items: {
@@ -15,6 +16,8 @@ const props = defineProps({
 
 const emit = defineEmits(['mentionSelect']);
 
+const { getPlainText } = useMessageFormatter();
+
 const mentionsListContainerRef = ref(null);
 const selectedIndex = ref(0);
 
@@ -94,7 +97,7 @@ const variableKey = (item = {}) => {
                 'text-n-slate-12': index === selectedIndex,
               }"
             >
-              {{ item.description }}
+              {{ getPlainText(item.description) }}
             </p>
             <p
               class="max-w-full min-w-0 mb-0 overflow-hidden text-xs text-n-slate-11 group-hover:text-n-slate-12 text-ellipsis whitespace-nowrap"
diff --git a/app/javascript/dashboard/helper/editorHelper.js b/app/javascript/dashboard/helper/editorHelper.js
index 1d8a97186..e126a2766 100644
--- a/app/javascript/dashboard/helper/editorHelper.js
+++ b/app/javascript/dashboard/helper/editorHelper.js
@@ -34,6 +34,7 @@ export function extractTextFromMarkdown(markdown) {
 
 /**
  * Strip unsupported markdown formatting based on channel capabilities.
+ * Uses MARKDOWN_PATTERNS from editor constants.
  *
  * @param {string} markdown - markdown text to process
  * @param {string} channelType - The channel type to check supported formatting
@@ -43,35 +44,16 @@ export function stripUnsupportedSignatureMarkdown(markdown, channelType) {
   if (!markdown) return '';
 
   const { marks = [], nodes = [] } = FORMATTING[channelType] || {};
-  const has = (arr, key) => arr.includes(key);
+  const supported = [...marks, ...nodes];
 
-  // Define stripping rules: [condition, pattern, replacement]
-  const rules = [
-    [!has(nodes, 'image'), /!\[.*?\]\(.*?\)/g, ''],
-    [!has(marks, 'link'), /\[([^\]]+)\]\([^)]+\)/g, '$1'],
-    [!has(nodes, 'codeBlock'), /```[\s\S]*?```/g, ''],
-    [!has(marks, 'code'), /`([^`]+)`/g, '$1'],
-    [!has(marks, 'strong'), /\*\*([^*]+)\*\*/g, '$1'],
-    [!has(marks, 'strong'), /__([^_]+)__/g, '$1'],
-    [!has(marks, 'em'), /\*([^*]+)\*/g, '$1'],
-    // Match _text_ only at word boundaries (whitespace/string start/end)
-    // Preserves underscores in URLs (e.g., https://example.com/path_name) and variable names
-    [
-      !has(marks, 'em'),
-      /(?<=^|[\s])_([^_\s][^_]*[^_\s]|[^_\s])_(?=$|[\s])/g,
-      '$1',
-    ],
-    [!has(marks, 'strike'), /~~([^~]+)~~/g, '$1'],
-    [!has(nodes, 'blockquote'), /^>\s?/gm, ''],
-    [!has(nodes, 'bulletList'), /^[-*+]\s+/gm, ''],
-    [!has(nodes, 'orderedList'), /^\d+\.\s+/gm, ''],
-  ];
-
-  const result = rules.reduce(
-    (text, [shouldStrip, pattern, replacement]) =>
-      shouldStrip ? text.replace(pattern, replacement) : text,
-    markdown
-  );
+  // Apply patterns from MARKDOWN_PATTERNS for unsupported types
+  const result = MARKDOWN_PATTERNS.reduce((text, { type, patterns }) => {
+    if (supported.includes(type)) return text;
+    return patterns.reduce(
+      (t, { pattern, replacement }) => t.replace(pattern, replacement),
+      text
+    );
+  }, markdown);
 
   return result
     .split('\n')
@@ -186,27 +168,22 @@ export function appendSignature(body, signature, channelType) {
 
 /**
  * Removes the signature from the body, along with the signature delimiter.
- * Tries to find both the original signature and the stripped version.
+ * Tries multiple signature variants: original, channel-stripped, and fully stripped.
  *
  * @param {string} body - The body to remove the signature from.
  * @param {string} signature - The signature to remove.
  * @param {string} channelType - Optional. The effective channel type for channel-specific stripping.
- *                               For Twilio channels, pass the result of getEffectiveChannelType().
  * @returns {string} - The body with the signature removed.
  */
 export function removeSignature(body, signature, channelType) {
-  // Build list of signatures to try: original, channel-stripped, and fully stripped
-  const cleanedSignature = cleanSignature(signature);
+  // Build unique list of signature variants to try
   const channelStripped = channelType
     ? cleanSignature(stripUnsupportedSignatureMarkdown(signature, channelType))
     : null;
-  const fullyStripped = cleanSignature(extractTextFromMarkdown(signature));
-
-  // Try signatures in order: original → channel-specific → fully stripped
   const signaturesToTry = [
-    cleanedSignature,
+    cleanSignature(signature),
     channelStripped,
-    fullyStripped,
+    cleanSignature(extractTextFromMarkdown(signature)),
   ].filter((sig, i, arr) => sig && arr.indexOf(sig) === i); // Remove nulls and duplicates
 
   // Find the first matching signature
@@ -225,17 +202,12 @@ export function removeSignature(body, signature, channelType) {
     newBody = newBody.substring(0, signatureIndex).trimEnd();
   }
 
-  // let's find the delimiter and remove it
-  const delimiterIndex = newBody.lastIndexOf(SIGNATURE_DELIMITER);
-  if (
-    delimiterIndex !== -1 &&
-    delimiterIndex === newBody.length - SIGNATURE_DELIMITER.length // this will ensure the delimiter is at the end
-  ) {
+  // Remove delimiter if it's at the end
+  if (newBody.endsWith(SIGNATURE_DELIMITER)) {
     // if the delimiter is at the end, remove it
-    newBody = newBody.substring(0, delimiterIndex);
+    newBody = newBody.slice(0, -SIGNATURE_DELIMITER.length);
   }
 
-  // return the value
   return newBody;
 }
 
diff --git a/app/javascript/dashboard/routes/dashboard/settings/canned/Index.vue b/app/javascript/dashboard/routes/dashboard/settings/canned/Index.vue
index 216aa1923..0071eab03 100644
--- a/app/javascript/dashboard/routes/dashboard/settings/canned/Index.vue
+++ b/app/javascript/dashboard/routes/dashboard/settings/canned/Index.vue
@@ -6,6 +6,7 @@ import BaseSettingsHeader from '../components/BaseSettingsHeader.vue';
 import { computed, onMounted, ref, defineOptions } from 'vue';
 import { useI18n } from 'vue-i18n';
 import { useStoreGetters, useStore } from 'dashboard/composables/store';
+import { useMessageFormatter } from 'shared/composables/useMessageFormatter';
 
 import Button from 'dashboard/components-next/button/Button.vue';
 
@@ -17,6 +18,8 @@ const getters = useStoreGetters();
 const store = useStore();
 const { t } = useI18n();
 
+const { getPlainText } = useMessageFormatter();
+
 const showAddPopup = ref(false);
 const loading = ref({});
 const showEditPopup = ref(false);
@@ -182,7 +185,7 @@ const tableHeaders = computed(() => {
               {{ cannedItem.short_code }}
             </td>
             <td class="py-4 ltr:pr-4 rtl:pl-4 md:break-all whitespace-normal">
-              {{ cannedItem.content }}
+              {{ getPlainText(cannedItem.content) }}
             </td>
             <td class="py-4 flex justify-end gap-1">
               <Button
diff --git a/package.json b/package.json
index 87f44528a..1ba064450 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   "dependencies": {
     "@breezystack/lamejs": "^1.2.7",
     "@chatwoot/ninja-keys": "1.2.3",
-    "@chatwoot/prosemirror-schema": "1.2.6",
+    "@chatwoot/prosemirror-schema": "1.3.4",
     "@chatwoot/utils": "^0.0.51",
     "@formkit/core": "^1.6.7",
     "@formkit/vue": "^1.6.7",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 663cc1999..56a7d910f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -20,8 +20,8 @@ importers:
         specifier: 1.2.3
         version: 1.2.3
       '@chatwoot/prosemirror-schema':
-        specifier: 1.2.6
-        version: 1.2.6
+        specifier: 1.3.4
+        version: 1.3.4
       '@chatwoot/utils':
         specifier: ^0.0.51
         version: 0.0.51
@@ -430,8 +430,8 @@ packages:
   '@chatwoot/ninja-keys@1.2.3':
     resolution: {integrity: sha512-xM8d9P5ikDMZm2WbaCTk/TW5HFauylrU3cJ75fq5je6ixKwyhl/0kZbVN/vbbZN4+AUX/OaSIn6IJbtCgIF67g==}
 
-  '@chatwoot/prosemirror-schema@1.2.6':
-    resolution: {integrity: sha512-ej60kU3m/tP0VoGkOJhj0X+Mxt7fEX5DSEE4IibCZnTM4kMewkMxSYyPu0AXqaA4nKX1hTMrwcbv1t7gVQttWQ==}
+  '@chatwoot/prosemirror-schema@1.3.4':
+    resolution: {integrity: sha512-XY1UyG9topVy7fNCt45YgiU/QzlJJRhrcrSWcvAIIcDYKomnEcGOyeAfM3WeFD6GgOuLzRUyIHrW+WQGpHaZvA==}
 
   '@chatwoot/utils@0.0.51':
     resolution: {integrity: sha512-WlEmWfOTzR7YZRUWzn5Wpm15/BRudpwqoNckph8TohyDbiim1CP4UZGa+qjajxTbNGLLhtKlm0Xl+X16+5Wceg==}
@@ -4909,7 +4909,7 @@ snapshots:
       hotkeys-js: 3.8.7
       lit: 2.2.6
 
-  '@chatwoot/prosemirror-schema@1.2.6':
+  '@chatwoot/prosemirror-schema@1.3.4':
     dependencies:
       markdown-it-sup: 2.0.0
       prosemirror-commands: 1.6.0