Function buildReactionTranscript

src/buddy/observer.ts:306–337

(
  messages: readonly Message[],
  toolOutput: string,
)

}

function buildReactionTranscript(
  messages: readonly Message[],
  toolOutput: string,
): string {
  const lines: string[] = []
  const recentMessages = messages.slice(-REACTION_TRANSCRIPT_WINDOW)

  for (const message of recentMessages) {
    if (message.type !== 'user' && message.type !== 'assistant') {
      continue
    }
    if (message.isMeta) {
      continue
    }

    const text =
      message.type === 'user'
        ? getUserMessageText(message)
        : getAssistantMessageText(message)
    if (text) {
      lines.push(
        `${message.type === 'user' ? 'user' : 'claude'}: ${text.slice(0, MAX_MESSAGE_CHARS)}`,
      )
    }
  }

  if (toolOutput) {
    lines.push(`[tool output]\n${toolOutput.slice(-MAX_TOOL_OUTPUT_CHARS)}`)
  }

  return lines.join('\n')
}

async function postBuddyReaction(
  companion: Companion,