Retrieves all Gmail filters
AI agents call list_filters to retrieve information from Gmail AutoAuth MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only retrieval of Gmail filter configurations. It queries existing data without creating, modifying, or deleting any resources. While filters could contain sensitive rule information, the tool itself only reads and does not execute, modify, or delete. The confidence is high because the description is clear and unambiguous about the retrieval-only nature of the operation.
From the tool's definition Tool description explicitly states 'Retrieves all Gmail filters' - a query operation with no modification or side effects.
Attacks that exploit this kind of access
Retrieves all Gmail filters. It is categorised as a Read tool in the Gmail AutoAuth MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Gmail AutoAuth MCP Server MCP server in PolicyLayer and add a rule for list_filters: 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 AutoAuth MCP Server. Nothing to install.
list_filters 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_filters 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_filters. 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_filters is provided by the Gmail AutoAuth MCP Server MCP server (sepehrshapouri/gmail-mcp-server). 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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