Function getAgentTranscript

src/utils/sessionStorage.ts:4191–4237

(agentId: AgentId)

 *          or null if not found
 */
export async function getAgentTranscript(agentId: AgentId): Promise<{
  messages: Message[]
  contentReplacements: ContentReplacementRecord[]
} | null> {
  const agentFile = getAgentTranscriptPath(agentId)

  try {
    const { messages, agentContentReplacements } =
      await loadTranscriptFile(agentFile)

    // Find messages with matching agentId
    const agentMessages = Array.from(messages.values()).filter(
      msg => msg.agentId === agentId && msg.isSidechain,
    )

    if (agentMessages.length === 0) {
      return null
    }

    // Find the most recent leaf message with this agentId
    const parentUuids = new Set(agentMessages.map(msg => msg.parentUuid))
    const leafMessage = findLatestMessage(
      agentMessages,
      msg => !parentUuids.has(msg.uuid),
    )

    if (!leafMessage) {
      return null
    }

    // Build the conversation chain
    const transcript = buildConversationChain(messages, leafMessage)

    // Filter to only include messages with this agentId
    const agentTranscript = transcript.filter(msg => msg.agentId === agentId)

    return {
      // Convert TranscriptMessage[] to Message[]
      messages: agentTranscript.map(
        ({ isSidechain, parentUuid, ...msg }) => msg,
      ),
      contentReplacements: agentContentReplacements.get(agentId) ?? [],
    }
  } catch {
    return null
  }
}

/**
 * Extract agent IDs from progress messages in the conversation.