AI agents call get_note_comments to retrieve information from RedNote MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves/queries comments associated with a note on Xiaohongshu, which is a read-only operation with no side effects. It does not create, modify, delete, or execute operations. The blast radius of misuse is minimal—an agent could only retrieve publicly accessible or authenticated comments without causing harm to data or systems.
From the tool's definition Tool name 'get_note_comments' and description '获取笔记评论' (get note comments) indicate retrieval of existing comment data with no modification or deletion of data.
Documented attack patterns abuse exactly the kind of access get_note_comments gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and RedNote MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_note_comments:
{
"version": "1",
"default": "deny",
"tools": {
"get_note_comments": {}
}
}get_note_comments is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取笔记评论. It is categorised as a Read tool in the RedNote MCP MCP Server, which means it retrieves data without modifying state.
Register the RedNote MCP server in PolicyLayer and add a rule for get_note_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 RedNote MCP. Nothing to install.
get_note_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 get_note_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 get_note_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.
get_note_comments is provided by the RedNote MCP server (jonafly/rednote-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from RedNote MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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4 RedNote MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.