Lists the forwarding addresses for the specified account
AI agents call list_forwarding_addresses to retrieve information from Gmail 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 and queries forwarding address configuration without creating, modifying, deleting, or executing any actions. It is purely informational. The low severity reflects minimal blast radius—an AI agent listing forwarding addresses cannot cause harm, though the data retrieved could inform further malicious actions if combined with other tools.
From the tool's definition Tool name 'list_forwarding_addresses' and description 'Lists the forwarding addresses for the specified account' indicates retrieval of existing configuration data with no modification or side effects.
Attacks that exploit this kind of access
Lists the forwarding addresses for the specified account. It is categorised as a Read tool in the Gmail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Gmail MCP Server MCP server in PolicyLayer and add a rule for list_forwarding_addresses: 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 Gmail MCP Server. Nothing to install.
list_forwarding_addresses 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_forwarding_addresses 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_forwarding_addresses. 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_forwarding_addresses is provided by the Gmail MCP Server MCP server (nk900600/gmail-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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