Module interceptor 

Tool call interception — hooks that run before tool execution.

ToolCallInterceptor lets users inspect, modify, or log tool calls before the tool’s execute() runs. Common uses:

• Input sanitization
• Rate limiting
• Audit logging
• Argument validation or transformation

Structs

PassthroughInterceptor

No-op interceptor — passes tool calls through unchanged.

Traits

ToolCallInterceptor

Hook that runs before each tool call inside super::ToolNode.