AI agents call list_todos to retrieve information from Jikan 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 items for the current day based on recurrence rules and timezone settings. It performs no modifications, deletions, or external operations—only data retrieval. The low severity reflects that misuse would only expose existing todo data already known to the user, with no blast radius beyond information disclosure of the user's own task list.
From the tool's definition Tool name 'list_todos' and description 'Get today's todos' clearly indicate a retrieval operation with no side effects. The term 'Get' is explicitly used, confirming this is a query-only action.
Attacks that exploit this kind of access
Get today's todos based on recurrence rules and timezone. Free (0 credits). It is categorised as a Read tool in the Jikan MCP Server, which means it retrieves data without modifying state.
Register the Jikan 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 Jikan. 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 Jikan MCP server (thunderrabbit/jikan). 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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