List all task lists.
AI agents call list_tasklists to retrieve information from Mcp Google Tasks without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves/queries data (lists task lists) without creating, modifying, or deleting any data. It is a pure read operation. The severity is low because listing task lists has minimal blast radius—it only exposes metadata about task organization without exposing sensitive task contents or enabling destructive actions.
From the tool's definition Tool name is 'list_tasklists' and description states 'List all task lists.' This is a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all task lists. It is categorised as a Read tool in the Mcp Google Tasks MCP Server, which means it retrieves data without modifying state.
Register the Mcp Google Tasks 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 Mcp Google Tasks. 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 Mcp Google Tasks MCP server (ktmage/mcp-google-tasks). 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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