ares-server 0.7.5

A.R.E.S - Agentic Retrieval Enhanced Server: A production-grade agentic chatbot server with multi-provider LLM support, tool calling, RAG, and MCP integration
Documentation 
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use crate::tools::registry::Tool;
use crate::types::Result;
use async_trait::async_trait;
use serde_json::{json, Value};

/// Calculator tool for basic arithmetic operations.
pub struct Calculator;

#[async_trait]
impl Tool for Calculator {
    fn name(&self) -> &str {
        "calculator"
    }

    fn description(&self) -> &str {
        "Perform basic arithmetic operations"
    }

    fn parameters_schema(&self) -> Value {
        json!({
            "type": "object",
            "properties": {
                "operation": {
                    "type": "string",
                    "enum": ["add", "subtract", "multiply", "divide"]
                },
                "a": { "type": "number" },
                "b": { "type": "number" }
            },
            "required": ["operation", "a", "b"]
        })
    }

    async fn execute(&self, args: Value) -> Result<Value> {
        let op = args["operation"].as_str().unwrap_or("add");
        let a = args["a"].as_f64().unwrap_or(0.0);
        let b = args["b"].as_f64().unwrap_or(0.0);

        let result = match op {
            "add" => a + b,
            "subtract" => a - b,
            "multiply" => a * b,
            "divide" => a / b,
            _ => 0.0,
        };

        Ok(json!({ "result": result }))
    }
}