Ant Social Security Tianjin Calculator

Problem Addressed

When a user supplies a Tianjin social security base, such as “Tianjin base 8000, calculate it”, manual calculation requires checking the base range, five-insurance rates, employee and employer splits, and floating work-injury rates. This skill turns that process into structured input, fixed calculation rules, and rendered output, reducing repeated table lookup and arithmetic.

How It Works

• Input parsing: extracts a numeric base from the message and supports thousands separators such as 10,000; asks for the base if missing.
• Calculation script: runs a managed Python module, loads references/rates.json when available, falls back to embedded constants, and clamps the base to [5124, 25620].
• Result output: produces a JSON breakdown for pension, medical including maternity, unemployment, and work-injury insurance, including monthly employee, employer, and total amounts.
• Infographic generation: installs matplotlib / pillow into a managed venv, registers Chinese fonts, renders a branded PNG, and presents the file.

Scope and Caveats

The skill is scoped to Tianjin enterprise employees and five-insurance estimation. Rates are based on Tianjin 2025 published standards, with the referenced effective date of October 1, 2025. Work-injury insurance uses floating industry risk rates, so actual values can vary by industry category; the estimate is for planning and verification, not a substitute for official HR, medical, tax, or employer determinations.