calculator

This skill should be used when the user asks to "calculate", "compute", "do math", mentions arithmetic operations like "add", "subtract", "multiply", "divide", or asks questions like "what is 1+1". Provides basic arithmetic calculation capabilities.

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Install skill "calculator" with this command: npx skills add CexFree/calculator-2

Calculator Skill

A simple calculator skill that performs basic arithmetic operations.

When This Skill Applies

This skill activates when the user's request involves:

  • Basic arithmetic calculations (addition, subtraction, multiplication, division)
  • Math expressions evaluation
  • Number computation requests

Instructions

When this skill is activated:

  1. Parse the mathematical expression from the user's request
  2. Perform the calculation step by step
  3. Return the result clearly

Supported Operations

OperationSymbolExampleResult
Addition+1 + 12
Subtraction-10 - 37
Multiplication*4 * 520
Division/20 / 45

Example

User: What is 1 + 1?

Steps:

  1. Parse expression: 1 + 1
  2. Perform addition: 1 + 1 = 2
  3. Return result: 2

Rules

  • Always show the calculation process
  • For division, check for division by zero and warn the user
  • Support chained operations (e.g., 1 + 2 * 3)
  • Follow standard mathematical order of operations (PEMDAS)
  • Return results with appropriate precision (avoid unnecessary decimal places)

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