search_tfda_drug
AI agents call search_tfda_drug 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.
Search and lookup operations are informational retrieval with no side effects. The tool queries regulatory data to retrieve drug information, which is a Read category function. Severity is low since it only accesses reference data without modifying systems or enabling harmful actions.
From the tool's definition Tool name 'search_tfda_drug' indicates a query/search operation against Taiwan FDA (TFDA) drug database. Server description confirms 'drug search' and 'Taiwan regulatory lookups' as reference workflows.
Attacks that exploit this kind of access
search_tfda_drug. 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 search_tfda_drug: 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.
search_tfda_drug 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 search_tfda_drug 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 search_tfda_drug. 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.
search_tfda_drug 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.
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