AI agents use updateNote to create or update resources in Memnote — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Memnote environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | string | Yes | |
body | object | Yes |
Parameters from the server's own tool schema.
The tool modifies existing notes, making it a Write operation rather than Read, Execute, or Destructive. It is not Destructive because updates are reversible (prior versions are archived in note history). Severity is medium because an AI agent misusing this could modify important notes, but the reversibility via history mitigates the risk compared to destructive operations.
From the tool's definition Tool name is 'updateNote' and description states 'Update a note' and 'The current version is automatically archived to note history before the update is applied.' This is a modification operation that changes existing data reversibly (with automatic history…
Risk signalsAccepts raw HTML/template content (body)
Attacks that exploit this kind of access
Update a note Updates a note. The current version is automatically archived to note history before the update is applied. It is categorised as a Write tool in the Memnote MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
updateNote accepts 2 parameters: id, body. Required: id, body. The full parameter table on this page comes from the server's own tool schema.
Register the Memnote MCP server in PolicyLayer and add a rule for updateNote: 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 Memnote. Nothing to install.
updateNote 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 updateNote 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 updateNote. 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.
updateNote is provided by the Memnote MCP server (@randomfact/memnote-mcp-server). 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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