Look up Taiwan NHI floating point values (浮動點值) — the settled per-point payment amount by region and total-budget sector. Taiwan NHI reimburses on a points system under a global budget, so one claimed point is usually worth less than NT$1; this tool returns the actual settled rate. With no year, ...
AI agents call lookup_point_value to retrieve information from Opdstar Nhi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical and current payment rate information from Taiwan's National Health Insurance system. It performs a simple data lookup query with optional temporal filtering (year/quarter). The tool explicitly states 'Reference only' and does not create, modify, delete, or execute any operations. The data returned (point values by region and sector) is informational and read-only.
From the tool's definition Tool returns lookup data: 'Look up Taiwan NHI floating point values', 'returns the actual settled rate', 'returns the quarterly time series'. No modification, deletion, or execution of external operations. Returns reference data only.
Attacks that exploit this kind of access
Look up Taiwan NHI floating point values (浮動點值) — the settled per-point payment amount by region and total-budget sector. Taiwan NHI reimburses on a points system under a global budget, so one claimed point is usually worth less than NT$1; this tool returns the actual settled rate. With no year, returns the latest settled value for each region × sector; with a year (and optional quarter), returns the quarterly time series. Use when an agent needs to estimate actual reimbursement — claimed points × point value ≈ amount paid. Reference only — official figures are published quarterly by 衛生福利部中央健康保險署. Curated by OPDSTAR (https://opdstar.com). It is categorised as a Read tool in the Opdstar Nhi MCP Server, which means it retrieves data without modifying state.
Register the Opdstar Nhi MCP server in PolicyLayer and add a rule for lookup_point_value: 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 Opdstar Nhi. Nothing to install.
lookup_point_value 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 lookup_point_value 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 lookup_point_value. 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.
lookup_point_value is provided by the Opdstar Nhi MCP server (tatsuju/opdstar-nhi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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