diff --git a/libs/package.json b/libs/package.json
index e21f0582d2..4feec63620 100644
--- a/libs/package.json
+++ b/libs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@logseq/libs",
-  "version": "0.2.5",
+  "version": "0.2.6",
   "description": "Logseq SDK libraries",
   "main": "dist/lsplugin.user.js",
   "typings": "index.d.ts",
diff --git a/libs/src/LSPlugin.ts b/libs/src/LSPlugin.ts
index a1bc78faa5..0eb51c9d0f 100644
--- a/libs/src/LSPlugin.ts
+++ b/libs/src/LSPlugin.ts
@@ -781,6 +781,12 @@ export interface IEditorProxy extends Record<string, any> {
   getAllProperties: () => Promise<PageEntity[] | null>
   getTagObjects: (PageIdentity) => Promise<BlockEntity[] | null>
   createTag: (tagName: string) => Promise<PageEntity | null>
+  addTagClassProperty: (tagId: BlockIdentity, propertyIdOrName: BlockIdentity,
+    opts?: Partial<{
+      type: stirng
+      [key: string]: any
+    }>) => Promise<void>
+  removeTagClassProperty: (tagId: BlockIdentity, propertyIdOrName: BlockIdentity) => Promise<void>
   addBlockTag: (blockId: BlockIdentity, tagId: BlockIdentity) => Promise<void>
   removeBlockTag: (blockId: BlockIdentity, tagId: BlockIdentity) => Promise<void>
 
diff --git a/src/main/logseq/api/db_based.cljs b/src/main/logseq/api/db_based.cljs
index 54553731d9..88829606ef 100644
--- a/src/main/logseq/api/db_based.cljs
+++ b/src/main/logseq/api/db_based.cljs
@@ -204,7 +204,7 @@
     (when tag
       (sdk-utils/result->js tag))))
 
-(defn upsert-property-to-tag [tag-id property-id-or-name & {:keys [schema]}]
+(defn add-tag-class-property [tag-id property-id-or-name & {:keys [schema]}]
   (p/let [repo (state/get-current-repo)
           tag-entity (db-async/<get-block repo tag-id {:children? false})
           class-tag? (some-> tag-entity (ldb/class?))
@@ -236,6 +236,9 @@
       (sdk-utils/result->js property')
       )))
 
+(defn remove-tag-class-property [tag-id property-id-or-name]
+  (throw (ex-info "TODO: implement remove-tag-class-property" {tag-id property-id-or-name})))
+
 (defn add-block-tag [id-or-name tag-id]
   (p/let [repo (state/get-current-repo)
           tag (db-async/<get-block repo tag-id)