AI agents use set_note_privacy to create or update resources in Mowen Notes MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mowen Notes MCP Server environment.
This tool modifies note metadata (privacy settings) reversibly without deleting data or executing arbitrary code. It falls under Write category as a data modification operation. Severity is medium because misconfiguration of privacy settings could expose sensitive notes, but the effect is reversible. Confidence is reduced due to missing description.
From the tool's definition Tool name 'set_note_privacy' indicates modification of note access controls; sibling tools include 'create_note' and 'edit_note' confirming this server manages note data. Description is empty, limiting specificity.
Documented attack patterns abuse exactly the kind of access set_note_privacy gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mowen Notes MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for set_note_privacy:
{
"version": "1",
"default": "deny",
"tools": {
"set_note_privacy": {
"limits": [
{
"counter": "set_note_privacy_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_note_privacy stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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set_note_privacy. It is categorised as a Write tool in the Mowen Notes MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mowen Notes MCP Server MCP server in PolicyLayer and add a rule for set_note_privacy: 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 Mowen Notes MCP Server. Nothing to install.
set_note_privacy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_note_privacy 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 set_note_privacy. 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.
set_note_privacy is provided by the Mowen Notes MCP Server MCP server (z4656207/mowen-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 Mowen Notes MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4 Mowen Notes MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.