List Apple Notes accounts available to the current macOS user.
AI agents call notes_list_accounts to retrieve information from Apple Notes MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about available Notes accounts without creating, modifying, deleting, or executing any operations. It is a pure read operation with minimal security impact—account enumeration poses low risk compared to data access or modification tools elsewhere on this server.
From the tool's definition Tool name 'notes_list_accounts' and description 'List Apple Notes accounts' indicate a query/retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List Apple Notes accounts available to the current macOS user. It is categorised as a Read tool in the Apple Notes MCP MCP Server, which means it retrieves data without modifying state.
Register the Apple Notes MCP server in PolicyLayer and add a rule for notes_list_accounts: 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. Nothing to install.
notes_list_accounts 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 notes_list_accounts 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 notes_list_accounts. 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.
notes_list_accounts is provided by the Apple Notes MCP server (taylorarndt/apple-notes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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