AI agents call todo_list to retrieve information from Todo MCP 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 existing todo items without modifying, creating, or deleting data. It is a query operation with no side effects, fitting the Read category with low severity since exposure poses minimal security risk (worst case: information disclosure of user's task list).
From the tool's definition Tool name 'todo_list' indicates a listing operation. Sibling tools show a pattern: todo_add (Write), todo_complete (Write), todo_delete (Destructive), todo_stats (Read), todo_update (Write). The 'list' suffix is a standard read-pattern verb.
Attacks that exploit this kind of access
todo_list. It is categorised as a Read tool in the Todo MCP MCP Server, which means it retrieves data without modifying state.
Register the Todo MCP server in PolicyLayer and add a rule for todo_list: 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 MCP. Nothing to install.
todo_list 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 todo_list 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 todo_list. 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.
todo_list is provided by the Todo MCP server (peterfabakker/todo-mcp). 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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