calculator

Evaluate arithmetic expressions with parentheses using a restricted environment.

32|9|Updated Feb 12, 2026
One-click install
npx skills add https://github.com/DotNetAge/mindx --skill calculator-dotnetage
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: calculator
Source: https://github.com/DotNetAge/mindx/tree/main/skills/calculator
Command: npx skills add https://github.com/DotNetAge/mindx --skill calculator-dotnetage

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Calculates mathematical expressions quickly and safely, eliminating manual arithmetic errors and tedious calculator fiddling.

Core Features & Use Cases

  • Safe evaluation of arithmetic expressions using a restricted execution environment
  • Supports basic operators (+, -, *, /) and parentheses for nested calculations
  • Useful in scripts, prompts, and automation where numerical results are needed quickly

Quick Start

Provide a JSON payload with the expression to evaluate to obtain the result.

Frequently Asked Questions about calculator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I safely evaluate mathematical expressions in an automation script?

To safely evaluate mathematical expressions, you can use a restricted execution environment with no builtins. This prevents arbitrary code execution while computing arithmetic operations and nested parentheses.

What is the best way to compute arithmetic expressions and get structured JSON output?

The best way to compute arithmetic expressions for structured output is passing a JSON payload to a safe evaluation tool. It processes the mathematical operations and returns the numerical results formatted as structured JSON data.

Can I use safe evaluation for arithmetic tasks with nested parentheses?

Yes, safe evaluation supports arithmetic tasks with nested parentheses. It handles basic operators like addition, subtraction, multiplication, and division within complex expressions without exposing system builtins.

Does safe math evaluation support basic operators and CLI integration?

Safe math evaluation supports basic operators and CLI integration. You can input mathematical expressions directly through command-line interfaces to quickly compute results without manual arithmetic errors.

Why do I need a restricted environment with no builtins for calculating expressions?

You need a restricted environment with no builtins to calculate expressions safely and prevent malicious code injection. This ensures only mathematical operations are executed, protecting the system during automation tasks.