Create a comment on a page (parent) or discussion thread (discussion_id). Needs insert-comment capability.
AI agents use notion_create_comment to create or update resources in MCP Notion Server (@suncreation) — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Notion Server (@suncreation) environment.
Creating comments modifies workspace state by adding new content, fitting the Write category (creates data reversibly). Severity is medium because comments can be edited or deleted by authorized users, and the blast radius is limited to adding potentially unwanted or misleading comments within a Notion workspace rather than affecting critical data or access controls.
From the tool's definition Tool creates comments ('Create a comment'), which is a reversible write operation that adds new content to a Notion page or discussion thread.
Attacks that exploit this kind of access
Create a comment on a page (parent) or discussion thread (discussion_id). Needs insert-comment capability. It is categorised as a Write tool in the MCP Notion Server (@suncreation) MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP Notion Server (@suncreation) MCP server in PolicyLayer and add a rule for notion_create_comment: 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 MCP Notion Server (@suncreation). Nothing to install.
notion_create_comment 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 notion_create_comment 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 notion_create_comment. 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.
notion_create_comment is provided by the MCP Notion Server (@suncreation) MCP server (suncreation/mcp-notion-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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