AI agents call search-notes to retrieve information from Apple Notes MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Search operations retrieve and query data without side effects. The empty description is typical for straightforward read tools, and the name combined with server context (which explicitly mentions 'search' as a supported function) clearly indicates this is a data retrieval tool.
From the tool's definition Tool name is 'search-notes' and the server description indicates it supports 'search' as a core capability alongside note creation and retrieval. The tool performs a query operation over existing notes without modifying or deleting them.
Documented attack patterns abuse exactly the kind of access search-notes gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apple Notes MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search-notes:
{
"version": "1",
"default": "deny",
"tools": {
"search-notes": {}
}
}search-notes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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search-notes. It is categorised as a Read tool in the Apple Notes MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apple Notes MCP Server MCP server in PolicyLayer and add a rule for search-notes: 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 Apple Notes MCP Server. Nothing to install.
search-notes 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 search-notes 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 search-notes. 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.
search-notes is provided by the Apple Notes MCP Server MCP server (siddhant-k-code/mcp-apple-notes). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apple Notes 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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3 Apple Notes MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.