Function isTextBreaker

src/utils/collapseReadSearch.ts:354–362

* Check if a message is assistant text that should break a group.

(msg: RenderableMessage)

 * Check if a message is assistant text that should break a group.
 */
function isTextBreaker(msg: RenderableMessage): boolean {
  if (msg.type === 'assistant') {
    const content = getFirstContentItem(msg.message?.content)
    if (content && content.type === 'text' && (content as { type: 'text'; text: string }).text.trim().length > 0) {
      return true
    }
  }
  return false
}

/**
 * Check if a message is a non-collapsible tool use that should break a group.