Function replaceToolResultContents

src/utils/toolResultStorage.ts:699–726

* Return a new Message[] where each tool_result block whose id appears in * replacementMap has its content replaced. Messages and blocks with no * replacements are passed through by reference.

(
  messages: Message[],
  replacementMap: Map<string, string>,
)

 * replacements are passed through by reference.
 */
function replaceToolResultContents(
  messages: Message[],
  replacementMap: Map<string, string>,
): Message[] {
  return messages.map(message => {
    if (message.type !== 'user' || !Array.isArray(message.message.content)) {
      return message
    }
    const content = message.message.content
    const needsReplace = content.some(
      b => b.type === 'tool_result' && replacementMap.has(b.tool_use_id),
    )
    if (!needsReplace) return message
    return {
      ...message,
      message: {
        ...message.message,
        content: content.map(block => {
          if (block.type !== 'tool_result') return block
          const replacement = replacementMap.get(block.tool_use_id)
          return replacement === undefined
            ? block
            : { ...block, content: replacement }
        }),
      },
    }
  })
}

async function buildReplacement(
  candidate: ToolResultCandidate,