feat(tui): optimistically render user messages

2 files changed, 9 insertions, 3 deletions

diff --git a/packages/tui/internal/components/chat/message.go b/packages/tui/internal/components/chat/message.go
index e4b3fbb0e..c20bf6447 100644
--- a/packages/tui/internal/components/chat/message.go
+++ b/packages/tui/internal/components/chat/message.go
@@ -253,7 +253,7 @@ func renderText(message client.MessageInfo, text string, author string) string {
 func renderToolInvocation(
 	toolCall client.MessageToolInvocationToolCall,
 	result *string,
-	metadata client.MessageInfo_Metadata_Tool_AdditionalProperties,
+	metadata client.MessageMetadata_Tool_AdditionalProperties,
 	showDetails bool,
 	isLast bool,
 	contentOnly bool,
@@ -466,7 +466,7 @@ func renderToolInvocation(
 
 						if metadata, ok := call["metadata"].(map[string]any); ok {
 							data, _ = json.Marshal(metadata)
-							var toolMetadata client.MessageInfo_Metadata_Tool_AdditionalProperties
+							var toolMetadata client.MessageMetadata_Tool_AdditionalProperties
 							_ = json.Unmarshal(data, &toolMetadata)
 
 							step := renderToolInvocation(
diff --git a/packages/tui/internal/components/chat/messages.go b/packages/tui/internal/components/chat/messages.go
index 3c5e88c20..bdb6a6f82 100644
--- a/packages/tui/internal/components/chat/messages.go
+++ b/packages/tui/internal/components/chat/messages.go
@@ -58,6 +58,12 @@ func (m *messagesComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.viewport.GotoBottom()
 		m.tail = true
 		return m, nil
+	case app.OptimisticMessageAddedMsg:
+		m.renderView()
+		if m.tail {
+			m.viewport.GotoBottom()
+		}
+		return m, nil
 	case dialog.ThemeSelectedMsg:
 		m.cache.Clear()
 		return m, m.Reload()
@@ -171,7 +177,7 @@ func (m *messagesComponent) renderView() {
 				isLastToolInvocation := slices.Contains(lastToolIndices, i)
 				toolInvocationPart := part.(client.MessagePartToolInvocation)
 				toolCall, _ := toolInvocationPart.ToolInvocation.AsMessageToolInvocationToolCall()
-				metadata := client.MessageInfo_Metadata_Tool_AdditionalProperties{}
+				metadata := client.MessageMetadata_Tool_AdditionalProperties{}
 				if _, ok := message.Metadata.Tool[toolCall.ToolCallId]; ok {
 					metadata = message.Metadata.Tool[toolCall.ToolCallId]
 				}