AI agents call nobetci_eczane to retrieve information from Yaver without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
city | string | Yes | City name (e.g. istanbul, ankara, izmir, bursa) |
district | string | — | District/ilçe (e.g. kadıköy, beşiktaş, çankaya) |
Parameters from the server's own tool schema.
Even though nobetci_eczane only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Find on-duty pharmacies (nöbetçi eczane) in Turkish cities. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.
nobetci_eczane accepts 2 parameters: city, district. Required: city. The full parameter table on this page comes from the server's own tool schema.
Register the Yaver MCP server in PolicyLayer and add a rule for nobetci_eczane: 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 Yaver. Nothing to install.
nobetci_eczane 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 nobetci_eczane 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 nobetci_eczane. 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.
nobetci_eczane is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.