fix: aws claude 4.6 not support context management (#471)

* fix: aws claude 4.6 not support context management

* fix: ci lint

Author: zijiren233

core/relay/adaptor/anthropic/main.go

@@ -57,7 +57,12 @@ func RemoveContextManagenetEdits(
 	node *ast.Node,
 	isSupportedEditsType ...func(t string) bool,
 ) {
-	editesNode := node.GetByPath("context_management", "edits")
+	contextManagementNode := node.Get("context_management")
+	if contextManagementNode.Check() != nil {
+		return
+	}
+
+	editesNode := contextManagementNode.GetByPath("edits")
 	if editesNode.Check() != nil {
 		return
 	}
@@ -82,6 +87,11 @@ func RemoveContextManagenetEdits(
 			return true
 		})
 
+	if len(newEdits) == 0 {
+		_, _ = contextManagementNode.Unset("edits")
+		return
+	}
+
 	*editesNode = ast.NewArray(newEdits)
 }
 

core/relay/adaptor/aws/claude/adapter.go

@@ -83,6 +83,7 @@ func fixBetas(model string, betas []string) []string {
 
 var supportedContextManagementEditsType = map[string]struct{}{
 	"clear_tool_uses_20250919": {},
+	"clear_thinking_20251015":  {},
 }
 
 func handleChatCompletionsRequest(meta *meta.Meta, request *http.Request) ([]byte, error) {
@@ -121,10 +122,15 @@ func handleAnthropicRequest(meta *meta.Meta, request *http.Request) ([]byte, err
 			)
 		}
 
-		anthropic.RemoveContextManagenetEdits(node, func(t string) bool {
-			_, ok := supportedContextManagementEditsType[t]
-			return ok
-		})
+		if strings.Contains(meta.ActualModel, "4-6") {
+			_, _ = node.Unset("context_management")
+		} else {
+			anthropic.RemoveContextManagenetEdits(node, func(t string) bool {
+				_, ok := supportedContextManagementEditsType[t]
+				return ok
+			})
+		}
+
 		anthropic.RemoveToolsExamples(node)
 
 		stream, _ := node.Get("stream").Bool()