gmail-get-labels · Google Services MCP Server MCP

WHAT IT DOES

What gmail-get-labels does on Google Services MCP Server

AI agents call gmail-get-labels to retrieve information from Google Services MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why gmail-get-labels needs a policy

This tool retrieves existing Gmail labels without creating, modifying, deleting, or executing any operations. It is a straightforward data retrieval operation with minimal security risk—labels are typically user-managed metadata. The blast radius of misuse is limited to unauthorized visibility of label names, which are generally low-sensitivity metadata.

From the tool's definition Tool name 'gmail-get-labels' and description 'Get all Gmail labels' indicate a query/retrieval operation with no modification of data.

Attacks that exploit this kind of access

Questions about gmail-get-labels

What does the gmail-get-labels tool do? +

Get all Gmail labels. It is categorised as a Read tool in the Google Services MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gmail-get-labels? +

Register the Google Services MCP Server MCP server in PolicyLayer and add a rule for gmail-get-labels: 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 Services MCP Server. Nothing to install.

What risk level is gmail-get-labels? +

gmail-get-labels is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit gmail-get-labels? +

Yes. Add a rate_limit block to the gmail-get-labels 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.

How do I block gmail-get-labels completely? +

Set action: deny in the PolicyLayer policy for gmail-get-labels. 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.

What MCP server provides gmail-get-labels? +

gmail-get-labels is provided by the Google Services MCP Server MCP server (ricleedo/google-service-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.