AI agents call get_default_notebook to retrieve information from Evernote 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 information about the user's default notebook setting. It performs no creation, modification, deletion, or execution—it simply queries existing state. The blast radius of misuse is minimal: an agent could learn which notebook is default, but cannot alter notebooks, notes, or any user data. This is a pure Read operation.
From the tool's definition Tool name 'get_default_notebook' and description 'Get the default notebook for new notes' indicate a query operation that retrieves configuration/metadata without modifying any data.
Documented attack patterns abuse exactly the kind of access get_default_notebook gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Evernote MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_default_notebook:
{
"version": "1",
"default": "deny",
"tools": {
"get_default_notebook": {}
}
}get_default_notebook is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the default notebook for new notes. It is categorised as a Read tool in the Evernote MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Evernote MCP Server MCP server in PolicyLayer and add a rule for get_default_notebook: 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 Evernote MCP Server. Nothing to install.
get_default_notebook 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 get_default_notebook 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 get_default_notebook. 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.
get_default_notebook is provided by the Evernote MCP Server MCP server (kensou24/evernote-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Evernote MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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52 Evernote MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.