codeant-ai-for-open-source[bot] commented on PR #38775:
URL: https://github.com/apache/superset/pull/38775#issuecomment-4100153294
## **Sequence Diagram**
This PR updates the search transform call proxy so it checks the target tool
schema before forwarding arguments. When a parameter accepts both string and
object forms, dict or list values are serialized to JSON text to avoid
transport encoding failures.
```mermaid
sequenceDiagram
participant Client
participant CallToolProxy
participant MCPServer
participant TargetTool
Client->>CallToolProxy: call_tool with name and arguments
CallToolProxy->>MCPServer: Fetch target tool schema
MCPServer-->>CallToolProxy: Return parameter schema
CallToolProxy->>CallToolProxy: Normalize mixed type fields to JSON text
CallToolProxy->>MCPServer: Forward normalized tool call
MCPServer->>TargetTool: Execute requested tool
TargetTool-->>MCPServer: Tool result
MCPServer-->>Client: Return tool response
```
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