AI agents use add_todo to create or update resources in Notion API MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Notion API MCP Server environment.
This tool creates new todo items in Notion, which is a reversible write operation. It does not delete data (not Destructive), execute arbitrary code (not Execute), or involve financial transactions (not Financial). The severity is medium because misuse could create spam or clutter in a user's Notion workspace, but the impact is limited to data creation rather than irreversible deletion or system compromise.
From the tool's definition Tool name 'add_todo' and description 'Add a new todo' indicate creation of new data. Sibling tools include 'create_page', 'create_database', and 'delete_block', confirming this server manages Notion content creation and modification.
Documented attack patterns abuse exactly the kind of access add_todo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Notion API MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for add_todo:
{
"version": "1",
"default": "deny",
"tools": {
"add_todo": {
"limits": [
{
"counter": "add_todo_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_todo 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.
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Add a new todo with rich features. It is categorised as a Write tool in the Notion API MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Notion API MCP Server MCP server in PolicyLayer and add a rule for add_todo: 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 Notion API MCP Server. Nothing to install.
add_todo is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the add_todo 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 add_todo. 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.
add_todo is provided by the Notion API MCP Server MCP server (pbohannon/notion-api-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Notion API MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
17 Notion API MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.