AI agents call retrieve_comments to retrieve information from Notion MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries comment data from a Notion page without creating, modifying, or deleting any content. It is a pure read operation with minimal blast radius if misused by an AI agent—the worst outcome would be unauthorized access to comment data already visible to the authenticated user.
From the tool's definition Tool name 'retrieve_comments' and description 'Get all comments from a page' indicate a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access retrieve_comments 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 retrieve_comments:
{
"version": "1",
"default": "deny",
"tools": {
"retrieve_comments": {}
}
}retrieve_comments is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all comments from a page. It is categorised as a Read tool in the Notion MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Notion MCP Server MCP server in PolicyLayer and add a rule for retrieve_comments: 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.
retrieve_comments 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 retrieve_comments 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 retrieve_comments. 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.
retrieve_comments is provided by the Notion MCP Server MCP server (v-3/notion-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 13 Notion MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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13 Notion MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.