Function normalize_tool_call 

pub fn normalize_tool_call(
    name: String,
    arguments: Value,
    provider_call_id: Option<String>,
) -> ToolCallPayload

Normalize raw tool call data into a typed ToolCallPayload variant

This function encapsulates provider-specific knowledge about:

• Tool name mapping (e.g., “Read” -> FileRead variant)
• Argument schema parsing (e.g., JSON -> FileReadArgs)
• Fallback handling (unknown tools -> Generic variant)

Arguments

• name - Tool name from provider (e.g., “Read”, “Bash”, “mcp__o3__search”)
• arguments - Raw JSON arguments from provider
• provider_call_id - Optional provider-specific call identifier

Returns

Typed ToolCallPayload variant with parsed arguments, or Generic variant as fallback