Ant Social Security Hangzhou Calculator

Problem

Hangzhou five-insurance calculations often get stuck on a few details: whether the contribution base falls inside the minimum and maximum range, whether the work-injury rate should be adjusted by industry risk class, and how to separate employee and employer amounts for both monthly and annual totals. Content workflows also need a shareable estimate card. Ant Social Security Hangzhou Calculator targets this workflow by turning one estimate into base parsing, rate calculation, and card rendering.

How it works

The skill extracts the monthly contribution base from the user message, including comma-formatted values such as 12,000; if no base is provided, it asks for one. It then runs scripts/calc.py in an isolated Python environment and calculates the employee and employer monthly and annual contributions under the 2025 Hangzhou employee five-insurance rules. Covered insurance types include pension, medical (including maternity), unemployment, and work-injury insurance. Work-injury insurance defaults to 0.2%, but can be adjusted with --work-injury when the user specifies an industry risk class. The default base range is 4986 to 25299; values outside that range are clamped and marked by default, while --no-clamp preserves the original input. The script prints line items and totals in the terminal and renders a landscape 1200×800 PNG card, defaulting to hangzhou_ss_result.png unless --out points elsewhere. references/rates.md stores rates, base limits, and policy references for verifying the calculation basis.

Scope and notes

This skill covers Hangzhou employee five-insurance only and does not include housing provident fund. Rates and base limits may change with Zhejiang Province policy, so annual updates should be made to RATES_2025, the min/max constants in scripts/calc.py, and references/rates.md. The rendered image uses a placeholder brand style; colors or official visual assets can be replaced later.