List users, bots, and optional groups invited to a Google Chat space.
AI agents call list_google_chat_memberships to retrieve information from Google Workspace MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries membership data from a Google Chat space. It performs no data modification, deletion, code execution, or financial operations. The action is read-only enumeration of existing members. Severity is low because membership lists are typically non-sensitive organizational metadata, and the blast radius of misuse is limited to information disclosure of already-known team membership.
From the tool's definition Tool name 'list_google_chat_memberships' and description 'List users, bots, and optional groups invited to a Google Chat space' indicate retrieval of membership information with no modification or side effects.
Attacks that exploit this kind of access
List users, bots, and optional groups invited to a Google Chat space. It is categorised as a Read tool in the Google Workspace MCP MCP Server, which means it retrieves data without modifying state.
Register the Google Workspace MCP server in PolicyLayer and add a rule for list_google_chat_memberships: 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 Google Workspace MCP. Nothing to install.
list_google_chat_memberships 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_google_chat_memberships 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_google_chat_memberships. 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_google_chat_memberships is provided by the Google Workspace MCP server (ngoquocviet2001/google-workspace-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.
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