Crate kodegen_mcp_tool 

Core Tool trait and error types for MCP tool implementations

This crate provides the fundamental abstractions for building MCP tools:

• The Tool trait that defines tool behavior and RMCP integration
• The McpError type for tool execution errors
• The tool_history module for tracking tool call history

Example

use kodegen_mcp_tool::{Tool, error::McpError};
use serde::{Deserialize, Serialize};
use schemars::JsonSchema;
use serde_json::Value;
use rmcp::model::{PromptArgument, PromptMessage};

pub struct MyTool;

#[derive(Deserialize, Serialize, JsonSchema)]
pub struct MyArgs {
    message: String,
}

#[derive(Deserialize, Serialize, JsonSchema)]
pub struct MyPromptArgs {}

impl Tool for MyTool {
    type Args = MyArgs;
    type PromptArgs = MyPromptArgs;
     
    fn name() -> &'static str { "my_tool" }
    fn description() -> &'static str { "Example tool" }
     
    async fn execute(&self, args: Self::Args) -> Result<Value, McpError> {
        Ok(serde_json::json!({ "message": args.message }))
    }
     
    fn prompt_arguments() -> Vec<PromptArgument> {
        vec![]
    }
     
    async fn prompt(&self, _args: Self::PromptArgs) -> Result<Vec<PromptMessage>, McpError> {
        Ok(vec![])
    }
}

Re-exports

pub use error::McpError;

pub use tool::Tool;

Modules

error

tool

tool_history