aevatarai/python-calc
examples/SkillsMCPUnifiedDemo/agent_skills/python-calc/SKILL.md
Evaluate arithmetic expressions precisely by calling py_calc (python-file tool).
$ install --global
skillsauthnpx skillsauth add aevatarai/aevatar-agent-framework python-calcInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Mar 30, 2026, 5:32 PM56.7s1 file scanned
SKILL.md
- name:
- python-calc
- description:
- Evaluate arithmetic expressions precisely by calling py_calc (python-file tool).
When to use
- 用户要求精确计算（尤其是分数/长小数），例如
1/7、(1+2)*3、2**128。 - 不允许“心算/估算/臆测”，必须可执行验证。
Procedure
- Call
py_calcwith:expr: 用户的表达式（原样）precision: 需要的小数精度（默认 50；如果用户要求 N 位小数，建议 precision >= N + 5）
- 用工具结果回答，必要时说明 precision。
Notes
py_calc只允许安全 AST 子集（数字、括号、+ - * / **），不支持变量/函数调用。
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