AI agents call read-note to retrieve information from Apple Notes without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves note content from a local database with no side effects, no data modification, and no external operations. It poses minimal security risk unless the notes contain highly sensitive information, but the tool itself is fundamentally a safe read operation. Severity is low because the blast radius is limited to information disclosure of locally-stored notes.
From the tool's definition Tool name 'read-note' and description 'Get full content of a specific note' indicate retrieval without modification. Server description explicitly states 'allows the AI to read from your local Apple Notes database'.
Documented attack patterns abuse exactly the kind of access read-note gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apple Notes, and nothing reaches the server without passing your rules. This is the rule we recommend for read-note:
{
"version": "1",
"default": "deny",
"tools": {
"read-note": {}
}
}read-note is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get full content of a specific note. It is categorised as a Read tool in the Apple Notes MCP Server, which means it retrieves data without modifying state.
Register the Apple Notes MCP server in PolicyLayer and add a rule for read-note: 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. Nothing to install.
read-note 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 read-note 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 read-note. 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.
read-note is provided by the Apple Notes MCP server (sirmews/apple-notes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 3 Apple Notes tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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3 Apple Notes tools catalogued and risk-classified — across an index of 42,500+ MCP servers.