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SKILL unreviewed Apache-2.0 Self-run

Calculator

skill-nvidia-skillevaluator-calculator · by NVIDIA

Evaluate mathematical expressions and unit conversions. Handles arithmetic, percentages, exponents, and common unit conversions (temperature, distance, weight). No external dependencies.

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Install

$ agentstack add skill-nvidia-skillevaluator-calculator

Open-source listing, not yet scanned by AgentStack. Follow the source repository for install instructions.

Security review

⚠ Flagged

1 finding(s); flagged for manual review. · v0.1.0 How review works →

  • • Prompt-injection patterns
  • • Secret / credential exfiltration
  • • Dangerous shell & filesystem operations
  • • Untrusted network calls
  • • Known-malicious package signatures
  • high Dangerous shell/eval execution.

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ● Dynamic code execution Used

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

Reliability & compatibility

— Not yet reviewed
0 installs to date
— no reviews yet
● 1mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

Calculator

Evaluate math expressions and perform unit conversions from the command line.

Purpose

Provide a safe, sandboxed calculator for arithmetic expressions and common unit conversions without relying on eval() or external services.

Agent Instructions

  1. Read this SKILL.md to understand capabilities.
  2. Run scripts/calc.py with the user's expression or conversion.
  3. Return the computed result to the user.

Examples

Usage

# Arithmetic expressions
python scripts/calc.py "2 + 3 * 4"
python scripts/calc.py "(100 - 25) / 3"
python scripts/calc.py "2 ** 10"

# Percentage calculations
python scripts/calc.py "15% of 200"

# Unit conversions
python scripts/calc.py "100 celsius to fahrenheit"
python scripts/calc.py "5 miles to km"
python scripts/calc.py "10 kg to lbs"

Output

A single line with the result, e.g.:

Result: 14

For conversions:

100 celsius = 212.0 fahrenheit

Limitations

  • No symbolic algebra (no variables, no equations).
  • Only supports basic arithmetic operators: +, -, *, /, **, %, parentheses.
  • Unit conversions are limited to: celsius/fahrenheit, miles/km, kg/lbs, meters/feet.

Troubleshooting

| Problem | Fix | |---------|-----| | Invalid expression | Check for unsupported operators or variables | | Unknown conversion | Use supported units: celsius, fahrenheit, miles, km, kg, lbs, meters, feet |

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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