AI agents call list-todos to retrieve information from Todo List MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays todo data with no side effects. It performs a simple read operation consistent with list/fetch operations in the Read category. The low severity reflects that misuse would only expose task information without enabling destructive or financial actions.
From the tool's definition Tool name 'list-todos' and description 'List all todos' indicate a query operation that retrieves todo items without modification or deletion.
Documented attack patterns abuse exactly the kind of access list-todos gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Todo List MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list-todos:
{
"version": "1",
"default": "deny",
"tools": {
"list-todos": {}
}
}list-todos is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all todos. It is categorised as a Read tool in the Todo List MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Todo List MCP Server MCP server in PolicyLayer and add a rule for list-todos: 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 Todo List MCP Server. Nothing to install.
list-todos 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-todos 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-todos. 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-todos is provided by the Todo List MCP Server MCP server (regibyte/todo-list-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Todo List MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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10 Todo List MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.