List all task lists in Google Tasks
AI agents call list-tasklists to retrieve information from Google Tasks MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The list-tasklists tool queries and retrieves existing task lists without creating, modifying, deleting, or executing any operations. This is a pure read operation with minimal risk—even if misused by an AI agent, it only exposes metadata about the user's task lists with no side effects.
From the tool's definition Tool name 'list-tasklists' and description 'List all task lists in Google Tasks' indicate a retrieval operation with no modification or deletion of data.
Attacks that exploit this kind of access
List all task lists in Google Tasks. It is categorised as a Read tool in the Google Tasks MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Tasks MCP Server MCP server in PolicyLayer and add a rule for list-tasklists: 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 Tasks MCP Server. Nothing to install.
list-tasklists 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-tasklists 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-tasklists. 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-tasklists is provided by the Google Tasks MCP Server MCP server (tonywmnix/gtasks-mcp-cf). 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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