add_todo_item · Tiny TODO MCP: Risk & Policy

WHAT IT DOES

What add_todo_item does on Tiny TODO MCP

AI agents use add_todo_item to create or update resources in Tiny TODO MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tiny TODO MCP environment.

WHY IT NEEDS A POLICY

Why add_todo_item needs a policy

An AI agent can call add_todo_item faster than any human can review — one bad instruction and it creates or modifies resources in Tiny TODO MCP by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_todo_item Rate-limited

add_todo_item stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_todo_item": {
      "limits": [
        {
          "counter": "add_todo_item_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tiny TODO MCP, so you can run agents against it safely.

FAQ

Questions about add_todo_item

What does the add_todo_item tool do? +

SINGLE ITEM ADDITION: Adds just one new TODO item to the existing list. Use this when you want to add a specific task without modifying the rest of the list. Input should be just the task text without any formatting. It is categorised as a Write tool in the Tiny TODO MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_todo_item? +

Register the Tiny TODO MCP server in PolicyLayer and add a rule for add_todo_item: 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 Tiny TODO MCP. Nothing to install.

What risk level is add_todo_item? +

add_todo_item is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_todo_item? +

Yes. Add a rate_limit block to the add_todo_item 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.

How do I block add_todo_item completely? +

Set action: deny in the PolicyLayer policy for add_todo_item. 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.

What MCP server provides add_todo_item? +

add_todo_item is provided by the Tiny TODO MCP server (tkc/tinyt-todo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.