Merge branch 'refactor/channel-system' into main

pkg/agent/loop.go

@@ -55,6 +55,8 @@ type processOptions struct {
 	NoHistory       bool   // If true, don't load session history (for heartbeat)
 }
 
+const defaultResponse = "I've completed processing but have no response to give. Increase `max_tool_iterations` in config.json."
+
 func NewAgentLoop(cfg *config.Config, msgBus *bus.MessageBus, provider providers.LLMProvider) *AgentLoop {
 	registry := NewAgentRegistry(cfg, provider)
 
@@ -330,7 +332,7 @@ func (al *AgentLoop) ProcessHeartbeat(ctx context.Context, content, channel, cha
 		Channel:         channel,
 		ChatID:          chatID,
 		UserMessage:     content,
-		DefaultResponse: "I've completed processing but have no response to give.",
+		DefaultResponse: defaultResponse,
 		EnableSummary:   false,
 		SendResponse:    false,
 		NoHistory:       true, // Don't load session history for heartbeat
@@ -406,7 +408,7 @@ func (al *AgentLoop) processMessage(ctx context.Context, msg bus.InboundMessage)
 		Channel:         msg.Channel,
 		ChatID:          msg.ChatID,
 		UserMessage:     msg.Content,
-		DefaultResponse: "I've completed processing but have no response to give.",
+		DefaultResponse: defaultResponse,
 		EnableSummary:   true,
 		SendResponse:    false,
 	})
@@ -551,6 +553,34 @@ func (al *AgentLoop) runAgentLoop(ctx context.Context, agent *AgentInstance, opt
 	return finalContent, nil
 }
 
+func (al *AgentLoop) targetReasoningChannelID(channelName string) (chatID string) {
+	if al.channelManager == nil {
+		return ""
+	}
+	if ch, ok := al.channelManager.GetChannel(channelName); ok {
+		return ch.ReasoningChannelID()
+	}
+	return ""
+}
+
+func (al *AgentLoop) handleReasoning(ctx context.Context, reasoningContent, channelName, channelID string) {
+	if reasoningContent == "" || channelName == "" || channelID == "" {
+		return
+	}
+
+	// Check context cancellation before attempting to publish,
+	// since PublishOutbound's select may race between send and ctx.Done().
+	if ctx.Err() != nil {
+		return
+	}
+
+	al.bus.PublishOutbound(ctx, bus.OutboundMessage{
+		Channel: channelName,
+		ChatID:  channelID,
+		Content: reasoningContent,
+	})
+}
+
 // runLLMIteration executes the LLM call loop with tool handling.
 func (al *AgentLoop) runLLMIteration(
 	ctx context.Context,
@@ -677,6 +707,18 @@ func (al *AgentLoop) runLLMIteration(
 			return "", iteration, fmt.Errorf("LLM call failed after retries: %w", err)
 		}
 
+		go al.handleReasoning(ctx, response.Reasoning, opts.Channel, al.targetReasoningChannelID(opts.Channel))
+
+		logger.DebugCF("agent", "LLM response",
+			map[string]any{
+				"agent_id":       agent.ID,
+				"iteration":      iteration,
+				"content_chars":  len(response.Content),
+				"tool_calls":     len(response.ToolCalls),
+				"reasoning":      response.Reasoning,
+				"target_channel": al.targetReasoningChannelID(opts.Channel),
+				"channel":        opts.Channel,
+			})
 		// Check if no tool calls - we're done
 		if len(response.ToolCalls) == 0 {
 			finalContent = response.Content