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calculator

Evaluate math expressions, unit conversions, and calculations.

Skill by riley1802

IndexedApache-2.0
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/riley1802-calculator

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Evaluate math expressions, unit conversions, and calculations. Supports arithmetic, trigonometry, logarithms, and more.

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Node.js package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/calculator

What's inside

Skill name
calculator
Description
Evaluate math expressions, unit conversions, and calculations. Supports arithmetic, trigonometry, logarithms, and more.
License
Apache-2.0
Instructions
29 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (3)

  • SKILL.md
  • index.html · scripts/
  • index.js · scripts/

SKILL.md (first lines)

# Calculator

This skill evaluates mathematical expressions and returns the result.

## Examples

* "What is 15% of 230?"
* "Calculate the square root of 144"
* "Convert 72 fahrenheit to celsius"
* "What is sin(45 degrees)?"
* "2^10 + 3 * 7"

## Instructions

Call the `run_js` tool with the following exact parameters:

- script name: `index.html`
- data: A JSON string with the following field
  - expression: the math expression to evaluate (e.g., "sqrt(144)", "15/100 * 230", "(72-32) * 5/9")

Supported operations:
- Basic: +, -, *, /, %, ** (power)
- Functions: sqrt, abs, ceil, floor, round, min, max
- Trig: sin, cos, tan, asin, acos, atan (input in radians)
- Logarithms: log (natural), log10, log2
- Constants: PI, E
- Conversion helpers: pass the full expression like "(72-32)*5/9" for Fahrenheit to Celsius

From riley1802/HUSK, Apache-2.0.

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Last commit (this folder)
Apr 14, 2026 (6 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from riley1802

Cite this page

calculator skill. Agent Mart. https://agentmart.dev/skills/riley1802-calculator (last updated 2026-10-24)