List Gmail messages, optionally filtered by Gmail search query and labels.
AI agents call list_gmail_messages to retrieve information from Sudo Mcp Gmail without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and queries existing Gmail messages based on search criteria and labels. It has no side effects—it does not create, modify, delete, or send data. It is purely a read operation. The severity is low because listing messages reveals only metadata and content the user already has access to; misuse would result in information disclosure rather than destructive or financial harm.
From the tool's definition Tool name is 'list_gmail_messages' and description states it 'List Gmail messages, optionally filtered by Gmail search query and labels.' This is a retrieval operation with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
List Gmail messages, optionally filtered by Gmail search query and labels. It is categorised as a Read tool in the Sudo Mcp Gmail MCP Server, which means it retrieves data without modifying state.
Register the Sudo Mcp Gmail MCP server in PolicyLayer and add a rule for list_gmail_messages: 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 Sudo Mcp Gmail. Nothing to install.
list_gmail_messages 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_gmail_messages 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_gmail_messages. 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_gmail_messages is provided by the Sudo Mcp Gmail MCP server (sahilyadav902/sudo-mcp-gmail). 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.
Teams ship this data inside their own products. See what a licence covers →