AI agents use create-comment to create or update resources in Notion MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Notion MCP Server environment.
Creating a comment is a reversible write operation that adds data to a Notion workspace. It does not execute code, delete data, or involve financial transactions. While the description is empty, the tool name and server context clearly indicate a content creation capability.
From the tool's definition Tool name 'create-comment' indicates creation of a new comment. The Notion SDK context shows this server enables interactions with Notion workspaces.
Documented attack patterns abuse exactly the kind of access create-comment gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Notion MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create-comment:
{
"version": "1",
"default": "deny",
"tools": {
"create-comment": {
"limits": [
{
"counter": "create-comment_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create-comment 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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create-comment. It is categorised as a Write tool in the Notion MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Notion MCP Server MCP server in PolicyLayer and add a rule for 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 Notion MCP Server. Nothing to install.
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 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 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.
create-comment is provided by the Notion MCP Server MCP server (ramidecodes/mcp-server-notion). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Notion MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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17 Notion MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.