get_medications_history · Agent Care MCP: Risk & Policy

WHAT IT DOES

What get_medications_history does on Agent Care MCP

AI agents call get_medications_history to retrieve information from Agent Care MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get_medications_history needs a policy

This tool retrieves historical medication data from patient electronic medical records (EMRs like Cerner/Epic via FHIR). It has no side effects—it only queries and returns data.

From the tool's definition Tool name 'get_medications_history' and description 'Get patient' indicate retrieval of patient medication history data without modification.

Attacks that exploit this kind of access

Questions about get_medications_history

What does the get_medications_history tool do? +

Get patient. It is categorised as a Read tool in the Agent Care MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_medications_history? +

Register the Agent Care MCP server in PolicyLayer and add a rule for get_medications_history: 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 Agent Care MCP. Nothing to install.

What risk level is get_medications_history? +

get_medications_history is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_medications_history? +

Yes. Add a rate_limit block to the get_medications_history 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.

How do I block get_medications_history completely? +

Set action: deny in the PolicyLayer policy for get_medications_history. 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.

What MCP server provides get_medications_history? +

get_medications_history is provided by the Agent Care MCP server (polya20/agentcare-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.