sync(openapi): agent-sdk/main 352de84 (#193)

Co-authored-by: xingyaoww <38853559+xingyaoww@users.noreply.github.com>

Author: github-actions[bot]

openapi/agent-sdk.json

@@ -6570,7 +6570,7 @@
           "version": {
             "type": "string",
             "title": "Version",
-            "default": "1.5.2"
+            "default": "1.6.0"
           },
           "docs": {
             "type": "string",
@@ -7389,6 +7389,11 @@
           "text": {
             "type": "string",
             "title": "Text"
+          },
+          "enable_truncation": {
+            "type": "boolean",
+            "title": "Enable Truncation",
+            "default": true
           }
         },
         "additionalProperties": false,
@@ -7469,15 +7474,21 @@
             "description": "The thinking content"
           },
           "signature": {
-            "type": "string",
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
             "title": "Signature",
             "description": "Cryptographic signature for the thinking block"
           }
         },
         "type": "object",
         "required": [
-          "thinking",
-          "signature"
+          "thinking"
         ],
         "title": "ThinkingBlock",
         "description": "Anthropic thinking block for extended thinking feature.\n\nThis represents the raw thinking blocks returned by Anthropic models\nwhen extended thinking is enabled. These blocks must be preserved\nand passed back to the API for tool use scenarios."