diff --git a/langchain-core/package.json b/langchain-core/package.json
index 97a1a9082495..a81b5c30a5c7 100644
--- a/langchain-core/package.json
+++ b/langchain-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@langchain/core",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Core LangChain.js abstractions and schemas",
   "type": "module",
   "engines": {
diff --git a/langchain-core/src/messages/index.ts b/langchain-core/src/messages/index.ts
index 805013f4ba42..9ddc2fd64e06 100644
--- a/langchain-core/src/messages/index.ts
+++ b/langchain-core/src/messages/index.ts
@@ -661,10 +661,12 @@ export function getBufferString(
       role = "System";
     } else if (m._getType() === "function") {
       role = "Function";
+    } else if (m._getType() === "tool") {
+      role = "Tool";
     } else if (m._getType() === "generic") {
       role = (m as ChatMessage).role;
     } else {
-      throw new Error(`Got unsupported message type: ${m}`);
+      throw new Error(`Got unsupported message type: ${m._getType()}`);
     }
     const nameStr = m.name ? `${m.name}, ` : "";
     string_messages.push(`${role}: ${nameStr}${m.content}`);
diff --git a/langchain/package.json b/langchain/package.json
index 5139b8897168..bceadc817f7b 100644
--- a/langchain/package.json
+++ b/langchain/package.json
@@ -1398,7 +1398,7 @@
   },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.9.1",
-    "@langchain/core": "^0.0.1",
+    "@langchain/core": "~0.0.2",
     "binary-extensions": "^2.2.0",
     "expr-eval": "^2.0.2",
     "flat": "^5.0.2",
diff --git a/yarn.lock b/yarn.lock
index 84d275030a5a..d33ded784176 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7988,7 +7988,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@langchain/core@^0.0.1, @langchain/core@workspace:*, @langchain/core@workspace:langchain-core":
+"@langchain/core@workspace:*, @langchain/core@workspace:langchain-core, @langchain/core@~0.0.2":
   version: 0.0.0-use.local
   resolution: "@langchain/core@workspace:langchain-core"
   dependencies:
@@ -22597,7 +22597,7 @@ __metadata:
     "@google-cloud/storage": ^6.10.1
     "@huggingface/inference": ^2.6.4
     "@jest/globals": ^29.5.0
-    "@langchain/core": ^0.0.1
+    "@langchain/core": ~0.0.2
     "@mozilla/readability": ^0.4.4
     "@notionhq/client": ^2.2.10
     "@opensearch-project/opensearch": ^2.2.0