Function collectRecentSuccessfulTools

src/utils/attachments.ts:2465–2503

(
  messages: ReadonlyArray<Message>,
  lastUserMessage: Message,
)

 * resolve after.
 */
export function collectRecentSuccessfulTools(
  messages: ReadonlyArray<Message>,
  lastUserMessage: Message,
): readonly string[] {
  const useIdToName = new Map<string, string>()
  const resultByUseId = new Map<string, boolean>()
  for (let i = messages.length - 1; i >= 0; i--) {
    const m = messages[i]
    if (!m) continue
    if (isHumanTurn(m) && m !== lastUserMessage) break
    if (m.type === 'assistant' && typeof m.message.content !== 'string') {
      for (const block of m.message.content) {
        if (block.type === 'tool_use') useIdToName.set(block.id, block.name)
      }
    } else if (
      m.type === 'user' &&
      'message' in m &&
      Array.isArray(m.message.content)
    ) {
      for (const block of m.message.content) {
        if (isToolResultBlock(block)) {
          resultByUseId.set(block.tool_use_id, block.is_error === true)
        }
      }
    }
  }
  const failed = new Set<string>()
  const succeeded = new Set<string>()
  for (const [id, name] of useIdToName) {
    const errored = resultByUseId.get(id)
    if (errored === undefined) continue
    if (errored) {
      failed.add(name)
    } else {
      succeeded.add(name)
    }
  }
  return [...succeeded].filter(t => !failed.has(t))
}


/**