AI agents call list_tasks to retrieve information from Mcp Tasks without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns task data from the SQLite database without creating, modifying, or deleting any records. It is a straightforward read operation with minimal risk—filtering by status does not constitute a side effect. Even if misused by an AI agent, the worst outcome is information disclosure of the user's own task list.
From the tool's definition Tool name 'list_tasks' and description 'List tasks, optionally filtered by status' indicate a retrieval operation with no modifications or side effects.
Attacks that exploit this kind of access
List tasks, optionally filtered by status (open|done). It is categorised as a Read tool in the Mcp Tasks MCP Server, which means it retrieves data without modifying state.
Register the Mcp Tasks MCP server in PolicyLayer and add a rule for list_tasks: 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 Tasks. Nothing to install.
list_tasks 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_tasks 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_tasks. 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_tasks is provided by the Mcp Tasks MCP server (kanaparthikiran/mcp-tasks-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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