List drugs requiring NHI prior authorization.
AI agents call list_prior_authorization_drugs to retrieve information from Pharmacy MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and presents reference information about which medications require prior authorization under Taiwan's National Health Insurance system. It performs a pure data lookup without creating, modifying, deleting, or executing any operations. The output is informational only, used to help healthcare providers understand regulatory requirements. This is a classic Read category operation.
From the tool's definition Tool name 'list_prior_authorization_drugs' and description 'List drugs requiring NHI prior authorization' indicate a retrieval/query operation with no modifications or side effects.
Attacks that exploit this kind of access
List drugs requiring NHI prior authorization. It is categorised as a Read tool in the Pharmacy MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Pharmacy MCP Server MCP server in PolicyLayer and add a rule for list_prior_authorization_drugs: 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 Pharmacy MCP Server. Nothing to install.
list_prior_authorization_drugs 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 list_prior_authorization_drugs 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 list_prior_authorization_drugs. 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.
list_prior_authorization_drugs is provided by the Pharmacy MCP Server MCP server (u9401066/pharmacy-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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