Update mcp_agent.config.yaml settings

Author: LZH-YS1998

mcp_agent.config.yaml

@@ -2,7 +2,7 @@ $schema: ./schema/mcp-agent.config.schema.json
 anthropic: null
 default_search_server: brave
 document_segmentation:
-  enabled: true
+  enabled: False
   size_threshold_chars: 50000
 execution_engine: asyncio
 logger:
@@ -101,8 +101,8 @@ mcp:
       env:
         PYTHONPATH: .
 openai:
-  base_max_tokens: 20000
-  default_model: google/gemini-2.5-pro
+  base_max_tokens: 40000
+  default_model: anthropic/claude-3.5-sonnet
   max_tokens_policy: adaptive
-  retry_max_tokens: 32768
+  retry_max_tokens: 30000
 planning_mode: traditional