gcp_vpc_list_routes
List all routes in the project
This record as markdown: /tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-vpc-list-routes.md
What gcp_vpc_list_routes does on GCP MCP Server
AI agents call gcp_vpc_list_routes to retrieve information from GCP MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why gcp_vpc_list_routes is rated Low
This tool queries and retrieves VPC route information, which is a non-destructive read operation. While network topology information could be sensitive, listing routes is a standard informational query with no side effects, no resource modification, and no ability to alter network behavior. The blast radius of misuse is limited to information disclosure about network configuration.
From the tool's definition Tool name 'list_routes' and description 'List all routes in the project' indicate a read operation that retrieves network routing configuration data without modification or execution.
Attacks that exploit this kind of access
The rule that runs gcp_vpc_list_routes safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GCP MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gcp_vpc_list_routes, this is the rule to start with:
gcp_vpc_list_routes is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect GCP MCP Server, apply this rule, and every gcp_vpc_list_routes call is checked against it from then on.
Questions about gcp_vpc_list_routes
List all routes in the project. It is categorised as a Read tool in the GCP MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GCP MCP Server MCP server in PolicyLayer and add a rule for gcp_vpc_list_routes: 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 GCP MCP Server. Nothing to install.
gcp_vpc_list_routes 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 gcp_vpc_list_routes 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 gcp_vpc_list_routes. 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.
gcp_vpc_list_routes is provided by the GCP MCP Server MCP server (ahmedselimmansor-ctrl/gcp_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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