bugfix: ChatHistory -- skip embedding whitespace-only text (#577)

(Noticed this causing failures with some of the game code.)

src/steamship/agents/schema/chathistory.py

@@ -153,7 +153,10 @@ def append_message_with_role(
                 block, kind=TagKind.CHAT, name=ChatTag.CHUNK
             )
             block.tags.extend(chunk_tags)
-            self.embedding_index.insert(chunk_tags)
+
+            # Only embed tags that aren't empty space.
+            non_empty_chunk_tags = [tag for tag in chunk_tags if tag.text.strip()]
+            self.embedding_index.insert(non_empty_chunk_tags)
         return block
 
     def append_user_message(
@@ -268,7 +271,10 @@ def delete_messages(self, selector: MessageSelector):
                             # TODO(dougreid): figure out why tag.text gets lost.
                             if not tag.text:
                                 tag.text = msg.text[tag.start_idx : tag.end_idx]
-                            self.embedding_index.insert(tag)
+
+                            # Only embed it if we've managed to generate a string representation.
+                            if tag.text and tag.text.strip():
+                                self.embedding_index.insert(tag)
 
         self.refresh()
 

src/steamship/cli/cli.py

@@ -330,7 +330,10 @@ def serve_local(  # noqa: C901
         #  2. The public_api_url should still be NGROK, not the Proxy. The local server emulates the Proxy and
         #     the Proxy blocks this kind of development traffic.
 
-        public_api_url = ngrok_api_url
+        public_api_url = (
+            f"https://{user.handle}.steamship.run/{workspace}/{registered_instance.handle}/"
+        )
+
         click.secho(f"🌎 Public API: {public_api_url}")
 
     # Start the local API Server. This has to happen after NGROK because the port & url need to be plummed.