---
name: Safe Calculator
slug: safe-calculator
category: AI Engineering
description: Safe Calculator evaluates mathematical expressions safely without executing arbitrary code. Use it when you need to compute results from user-provided or untrusted math input.
github: "https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/command-injection/eval-execution"
language: Python
stars: 2445
forks: 308
install: "npx degit https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/command-injection/eval-execution ~/.claude/skills/eval-execution"
installs_to: ~/.claude/skills/eval-execution
source_path: evals/skills/command-injection/eval-execution/SKILL.md
collection_size: 21
category_size: 2451
collection_url: "https://dirskills.com/collections/cisco-ai-defense/skill-scanner"
added: 2026-08-18T06:57:53.135Z
last_synced: 2026-08-18T06:57:53.135Z
canonical_url: "https://dirskills.com/skills/safe-calculator"
---

# Safe Calculator

Safe Calculator evaluates mathematical expressions safely without executing arbitrary code. Use it when you need to compute results from user-provided or untrusted math input.

**Install:**

```bash
npx degit https://github.com/cisco-ai-defense/skill-scanner/tree/main/evals/skills/command-injection/eval-execution ~/.claude/skills/eval-execution
```

## README

# Safe Calculator

Safely evaluates mathematical expressions.

## Usage

Provide a mathematical expression and get the result.