Function hoistToolResults

src/utils/messages.ts:2470–2483

* In thecontent[] list on a UserMessage, tool_result blocks much come first * to avoid "tool result must follow tool use" API errors.

(content: ContentBlockParam[])

 * to avoid "tool result must follow tool use" API errors.
 */
function hoistToolResults(content: ContentBlockParam[]): ContentBlockParam[] {
  const toolResults: ContentBlockParam[] = []
  const otherBlocks: ContentBlockParam[] = []

  for (const block of content) {
    if (block.type === 'tool_result') {
      toolResults.push(block)
    } else {
      otherBlocks.push(block)
    }
  }

  return [...toolResults, ...otherBlocks]
}

function normalizeUserTextContent(
  a: string | ContentBlockParam[],