Get a list of all notes
AI agents call list_notes to retrieve information from macOS MCP Servers without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves existing note data from the Notes application without creating, modifying, or deleting anything. It is a straightforward read operation with minimal security risk—exposure would allow an AI agent to view user notes but not alter them.
From the tool's definition Tool name 'list_notes' and description 'Get a list of all notes' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Get a list of all notes. It is categorised as a Read tool in the macOS MCP Servers MCP Server, which means it retrieves data without modifying state.
Register the macOS MCP Servers MCP server in PolicyLayer and add a rule for list_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 macOS MCP Servers. Nothing to install.
list_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 list_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 list_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.
list_notes is provided by the macOS MCP Servers MCP server (tdisawas0github/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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