chore: uptick

apps/desktop/src/app/shell/app-shell.tsx

@@ -74,10 +74,6 @@ export function AppShell({
 
   const titlebarToolCount = (titlebarTools?.filter(tool => !tool.hidden).length ?? 0) + (rightRailOpen ? 1 : 0) + 2
 
-  const previewToolbarGap = showPreviewRail
-    ? 'max(0px, calc(var(--shell-right-sidebar-width) - (3 * var(--titlebar-control-size)) + 0.2rem))'
-    : '0px'
-
   // Always keep the shell as fixed columns because sidebar/chat/preview/inspector
   // are always rendered as grid children. Hidden rails collapse to 0px so they
   // don't float over the chat surface or reorder into a new row.
@@ -132,7 +128,9 @@ export function AppShell({
           '--shell-preview-pane-width': previewColumn,
           '--shell-right-sidebar-width': inspectorColumn,
           '--shell-right-region-width': 'calc(var(--shell-preview-pane-width) + var(--shell-right-sidebar-width))',
-          '--shell-preview-toolbar-gap': previewToolbarGap,
+          '--shell-preview-toolbar-gap': showPreviewRail
+            ? 'max(0px, calc(var(--shell-right-sidebar-width) - (3 * var(--titlebar-control-size)) + 0.2rem))'
+            : '0px',
           '--titlebar-height': `${TITLEBAR_HEIGHT}px`,
           '--titlebar-content-inset': `${titlebarContentInset}px`,
           '--titlebar-controls-left': `${titlebarControls.left}px`,

apps/desktop/src/lib/chat-messages.test.ts

@@ -3,33 +3,21 @@ import { describe, expect, it } from 'vitest'
 import { appendAssistantTextPart, chatMessageText, renderMediaTags, toChatMessages, upsertToolPart } from './chat-messages'
 
 describe('toChatMessages', () => {
-  it('merges queued tool-only assistant rows into the previous assistant bubble', () => {
+  it('keeps a turn with interleaved tool-only rows in a single bubble', () => {
     const messages = toChatMessages([
       { role: 'assistant', content: 'Planning.', timestamp: 1 },
       {
         role: 'assistant',
         content: '',
         timestamp: 2,
-        tool_calls: [{ id: 'tc-terminal', function: { name: 'terminal', arguments: '{"command":"ls"}' } }]
+        tool_calls: [{ id: 'tc', function: { name: 'terminal', arguments: '{}' } }]
       },
       { role: 'assistant', content: 'Done.', timestamp: 3 }
     ])
 
-    const assistants = messages.filter(m => m.role === 'assistant')
-
-    expect(assistants).toHaveLength(1)
-    expect(chatMessageText(assistants[0])).toContain('Planning')
-    expect(chatMessageText(assistants[0])).toContain('Done')
-    expect(assistants[0].parts.some(p => p.type === 'tool-call' && p.toolName === 'terminal')).toBe(true)
-    const ordered = assistants[0].parts.map(p => p.type)
-
-    expect(ordered.filter(t => t === 'text')).toHaveLength(2)
-    const toolIdx = assistants[0].parts.findIndex(p => p.type === 'tool-call')
-
-    expect(ordered.slice(0, toolIdx)).toContain('text')
-    expect(
-      assistants[0].parts.findIndex((p, i) => p.type === 'text' && i > toolIdx)
-    ).toBeGreaterThanOrEqual(0)
+    expect(messages).toHaveLength(1)
+    expect(messages[0].parts.map(p => p.type)).toEqual(['text', 'tool-call', 'text'])
+    expect(chatMessageText(messages[0])).toBe('Planning.Done.')
   })
 
   it('hides attached context payloads from user message display', () => {

apps/desktop/src/lib/chat-messages.ts

@@ -516,17 +516,12 @@ export function toChatMessages(messages: SessionMessage[]): ChatMessage[] {
     if (message.role === 'assistant' && pendingToolParts.length) {
       const last = result.at(-1)
 
-      // Session logs interleave tool-only assistant rows with later prose; appending onto
-      // the previous bubble keeps one turn contiguous (vs unshift splitting the UI).
       if (last?.role === 'assistant') {
         last.parts = [...last.parts, ...pendingToolParts, ...parts]
+        last.timestamp = message.timestamp ?? last.timestamp
         pendingToolParts = []
         pendingToolTimestamp = undefined
 
-        if (message.timestamp !== undefined) {
-          last.timestamp = message.timestamp
-        }
-
         return
       }