json-mcp-server 0.1.0

A high-performance Model Context Protocol (MCP) server for comprehensive JSON file operations optimized for LLM interactions
Documentation 
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use serde::{Deserialize, Serialize};
use serde_json::Value;
use std::collections::HashMap;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MCPRequest {
    pub jsonrpc: String,
    pub id: Option<Value>,
    pub method: String,
    pub params: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MCPResponse {
    pub jsonrpc: String,
    pub id: Option<Value>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub result: Option<Value>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub error: Option<MCPError>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MCPError {
    pub code: i32,
    pub message: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub data: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Tool {
    pub name: String,
    pub description: String,
    pub input_schema: Value,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToolCall {
    pub name: String,
    pub arguments: HashMap<String, Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToolResult {
    pub content: Vec<ToolContent>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub is_error: Option<bool>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToolContent {
    #[serde(rename = "type")]
    pub content_type: String,
    pub text: String,
}

impl MCPResponse {
    pub fn success(id: Option<Value>, result: Value) -> Self {
        Self {
            jsonrpc: "2.0".to_string(),
            id,
            result: Some(result),
            error: None,
        }
    }

    pub fn error(id: Option<Value>, code: i32, message: &str) -> Self {
        Self {
            jsonrpc: "2.0".to_string(),
            id,
            result: None,
            error: Some(MCPError {
                code,
                message: message.to_string(),
                data: None,
            }),
        }
    }
}

impl ToolResult {
    pub fn success(text: String) -> Self {
        Self {
            content: vec![ToolContent {
                content_type: "text".to_string(),
                text,
            }],
            is_error: None,
        }
    }

    pub fn error(text: String) -> Self {
        Self {
            content: vec![ToolContent {
                content_type: "text".to_string(),
                text,
            }],
            is_error: Some(true),
        }
    }
}