Module transform 

Tool transformations for dynamic schema modification.

This module provides the ability to transform tools dynamically, allowing:

• Renaming tools and their arguments
• Modifying descriptions
• Providing default values for arguments
• Hiding arguments from the schema (while still providing values)
• Wrapping tools with custom transformation functions

Example

use fastmcp_server::transform::{ArgTransform, TransformedTool};

// Original tool with cryptic argument names
let original_tool = my_search_tool();

// Transform to be more LLM-friendly
let transformed = TransformedTool::from_tool(original_tool)
    .name("semantic_search")
    .description("Search for documents using natural language")
    .transform_arg("q", ArgTransform::new().name("query").description("Search query"))
    .transform_arg("n", ArgTransform::new().name("limit").default(10))
    .build();

Structs

ArgTransform

Transformation rules for a single argument.

NotSet

Sentinel value for unset optional fields.

TransformedTool

A transformed tool that wraps another tool and applies transformations.

TransformedToolBuilder

Builder for creating transformed tools.