Method recordHarnessAssistantMessage

pkg/runtime/harness.go:345–375

(sess *session.Session, a *agent.Agent, content, modelID string, usage *chat.Usage, cost float64, events EventSink)

}

func (r *LocalRuntime) recordHarnessAssistantMessage(sess *session.Session, a *agent.Agent, content, modelID string, usage *chat.Usage, cost float64, events EventSink) {
	if strings.TrimSpace(content) == "" && usage == nil {
		return
	}

	msg := chat.Message{
		Role:         chat.MessageRoleAssistant,
		Content:      content,
		CreatedAt:    r.now().Format(time.RFC3339),
		Usage:        usage,
		Model:        modelID,
		Cost:         cost,
		FinishReason: chat.FinishReasonStop,
	}
	addAgentMessage(sess, a, &msg, events)

	if usage == nil {
		return
	}
	input := usage.InputTokens + usage.CachedInputTokens + usage.CacheWriteTokens
	sess.SetUsage(input, usage.OutputTokens)
	msgUsage := &MessageUsage{
		Usage:        *usage,
		Cost:         cost,
		Model:        modelID,
		FinishReason: chat.FinishReasonStop,
	}
	usageEvent := SessionUsage(sess, 0)
	usageEvent.LastMessage = msgUsage
	events.Emit(NewTokenUsageEvent(sess.ID, a.Name(), usageEvent))
}

func harnessPromptFromMessages(messages []chat.Message) string {
	var b strings.Builder