Compute arithmetic expressions safely using AST parsing with whitelisted operators.
npx skills add https://github.com/Ynyqy/ZAgent --skill calculator-ynyqy
Please help me install this Agent Skill. Skill: calculator Source: https://github.com/Ynyqy/ZAgent/tree/main/zagent/workspace/skills/calculator Command: npx skills add https://github.com/Ynyqy/ZAgent --skill calculator-ynyqy
Quickly and safely compute mathematical expressions without exposing your environment to unsafe evaluation.
Ask the agent to evaluate a math expression, for example "2 + 3 * 4".
High-intent search queries and answers about installing and using this skill.
This Skill safely evaluates math expressions by parsing with a restricted AST parser that whitelists operators, preventing arbitrary code execution. It processes user-provided strings to compute arithmetic operations without exposing your environment to unsafe evaluation.
To compute arithmetic expressions, ask the agent to evaluate a math string like "2 + 3 * 4". The Skill parses and calculates the result on demand, supporting basic arithmetic, exponentiation, and modulus operations.
Safe AST expression evaluation supports basic arithmetic including addition, subtraction, multiplication, division, exponentiation (**), and modulus (%). It restricts parsing to these whitelisted mathematical operations only.
Yes, safe expression evaluation prevents arbitrary code execution by whitelisting operators and parsing with AST. This restricted parser ensures only mathematical computations run on user-provided strings, blocking dangerous code execution.
Evaluating complex formulas with a restricted AST parser is limited to basic arithmetic, exponentiation, and modulus operations. It does not support arbitrary Python functions or variables, as the whitelist enforces safe mathematical evaluation only.
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