AI agents call gsc_list_sites to retrieve information from Geoseo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns a list of existing Google Search Console properties. It performs information retrieval only, with no capacity to modify, delete, or execute operations. The blast radius is minimal—an agent can only discover which properties exist, not alter them.
From the tool's definition Tool name 'gsc_list_sites' and description 'List all Search Console properties the authenticated user can access' indicate a data retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all Search Console properties the authenticated user can access. It is categorised as a Read tool in the Geoseo MCP Server, which means it retrieves data without modifying state.
Register the Geoseo MCP server in PolicyLayer and add a rule for gsc_list_sites: 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 Geoseo. Nothing to install.
gsc_list_sites 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 gsc_list_sites 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 gsc_list_sites. 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.
gsc_list_sites is provided by the Geoseo MCP server (rachit8484/geoseo-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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