List all gateways in specified folder
AI agents call list_vpc_gateways to retrieve information from Yandex Cloud 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 gateway information without creating, modifying, deleting, or executing any operations. It is a passive query operation that has no side effects on cloud resources. The blast radius of misuse is limited to information disclosure of existing gateway configurations.
From the tool's definition Tool name 'list_vpc_gateways' and description 'List all gateways in specified folder' indicate a query/listing operation with no modification capabilities. The server is explicitly described as 'Read-only MCP server', and the tool performs data retrieval only.
Attacks that exploit this kind of access
List all gateways in specified folder. It is categorised as a Read tool in the Yandex Cloud MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Yandex Cloud MCP Server MCP server in PolicyLayer and add a rule for list_vpc_gateways: 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 Yandex Cloud MCP Server. Nothing to install.
list_vpc_gateways 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_vpc_gateways 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_vpc_gateways. 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_vpc_gateways is provided by the Yandex Cloud MCP Server MCP server (romati88/ycmcp). 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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