計算雇主端二代健保補充保費（費率 2.11%）：(每月支付薪資總額 − 受僱者當月健保投保金額總額) × 費率，無上限。結果僅供參考，以勞保局、健保署核發之繳款單為準，不構成法律或會計建議。
AI agents call calculate_employer_supplementary_premium to retrieve information from Taiwan Payroll without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
year | integer | — | 年度（西元，如 2026）。省略則使用最新可用年度；可先用 list_years 查可用年度。 |
rounding | string | — | 進位策略：round=四捨五入（預設）、ceil=無條件進位、aggregate-then-round=合計後分配（政府方吸收進位差）。 |
monthlyPaidTotal | number | Yes | 每月支付薪資所得總額 A，新臺幣元（含薪資、獎金、兼職、車馬費、承攬等）。 |
monthlyInsuredTotal | number | Yes | 受僱者當月健保投保金額總額 B，新臺幣元（全體受僱者投保金額合計）。 |
Parameters from the server's own tool schema.
This tool retrieves payroll-related data and performs a read-only statutory calculation. It does not create records, modify databases, execute external commands, delete data, or commit financial transactions. While it involves payroll context, the tool itself is purely computational with no side effects—it calculates an informational figure.
From the tool's definition Tool name and description indicate calculation-only operation: 'calculate_employer_supplementary_premium' performs arithmetic computation of Taiwan's 2nd-gen NHI supplementary premium (2.11% rate) without modifying any data or triggering payment obligations.
Attacks that exploit this kind of access
計算雇主端二代健保補充保費（費率 2.11%）：(每月支付薪資總額 − 受僱者當月健保投保金額總額) × 費率，無上限。結果僅供參考，以勞保局、健保署核發之繳款單為準，不構成法律或會計建議。. It is categorised as a Read tool in the Taiwan Payroll MCP Server, which means it retrieves data without modifying state.
calculate_employer_supplementary_premium accepts 4 parameters: year, rounding, monthlyPaidTotal, monthlyInsuredTotal. Required: monthlyPaidTotal, monthlyInsuredTotal. The full parameter table on this page comes from the server's own tool schema.
Register the Taiwan Payroll MCP server in PolicyLayer and add a rule for calculate_employer_supplementary_premium: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Taiwan Payroll. Nothing to install.
calculate_employer_supplementary_premium is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the calculate_employer_supplementary_premium rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for calculate_employer_supplementary_premium. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
calculate_employer_supplementary_premium is provided by the Taiwan Payroll MCP server (taiwan-payroll-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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