Find pharmacies near a postcode.
AI agents call find_pharmacies to retrieve information from GovUK 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 publicly available pharmacy location information based on a postcode input. It has no side effects, does not execute code, does not modify data, and does not involve financial transactions. It is a straightforward read operation consistent with other query tools on the server (find_courts, find_gp_surgeries, find_hospitals, find_mp, get_*).
From the tool's definition Tool name 'find_pharmacies' and description 'Find pharmacies near a postcode' indicate a query operation that retrieves location data without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
Find pharmacies near a postcode. It is categorised as a Read tool in the GovUK MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GovUK MCP Server MCP server in PolicyLayer and add a rule for find_pharmacies: 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 GovUK MCP Server. Nothing to install.
find_pharmacies 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 find_pharmacies 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 find_pharmacies. 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.
find_pharmacies is provided by the GovUK MCP Server MCP server (stealth-labs-ltd/govuk-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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