support otel tool input and outputy

Author: JqRrt

backend/modules/observability/lib/otel/consts.go

@@ -101,6 +101,9 @@ const (
 // otel attribute key
 const (
 	otelAttributeModelInputTools = "gen_ai.tool.definitions" // model tools
+
+	otelAttributeToolInput  = "gen_ai.tool.call.arguments" // tool input
+	otelAttributeToolOutput = "gen_ai.tool.call.result"
 )
 
 var otelMessageEventNameMap = []string{

backend/modules/observability/lib/otel/open_inference/openinference.go

@@ -86,6 +86,9 @@ func convertModelMsg(msg map[string]interface{}) map[string]interface{} {
 				}
 				typ, _ := mcContent["type"]
 				text, _ := mcContent["text"]
+				if text == nil {
+					text, _ = mcContent["content"]
+				}
 				image, _ := mcContent["image_url"]
 				part := map[string]interface{}{}
 				switch typ {

backend/modules/observability/lib/otel/otel_convert.go

@@ -26,7 +26,7 @@ import (
 // FieldConfMap Field configuration, supports configuring data sources and export methods for fields, currently supports attribute, event, is_tag, data_type
 // Among them, attributes and events support configuring multiple, while tags and datatypes only support configuring one.
 // For AttributeKey and AttributeKeyPrefix, the field at the head has higher priority, and result will be returned once a match is found.
-// FOr Events, the fields have same priority, and result will be fixed by all fields.
+// For Events, the fields have same priority, and result will be fixed by all fields.
 // Other types of configurations need to be manually processed in the code.
 var (
 	FieldConfMap = map[string]FieldConf{
@@ -93,6 +93,7 @@ var (
 				springAIAttributeToolInput,
 				otelAttributeInput,
 				apmInput,
+				otelAttributeToolInput,
 			},
 			AttributeKeyPrefix: []string{
 				openInferenceAttributeModelInputMessages,
@@ -121,6 +122,7 @@ var (
 				springAIAttributeToolOutput,
 				otelAttributeOutput,
 				apmOutput,
+				otelAttributeToolOutput,
 			},
 			AttributeKeyPrefix: []string{
 				openInferenceAttributeModelOutputMessages,