Low Risk

list_topics

获取知识库列表(每页固定 20 条)。返回 topics[]、has_more、total。每个 topic 包含 topic_id(知识库 ID,后续所有接口的 topic_id 参数均传此值)、name、description、cover、stats(笔记数、文件数、博主数、直播数)等。

How to control list_topics ↓

What list_topics does on GetNote MCP Server

AI agents call list_topics to retrieve information from GetNote MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why list_topics needs a policy

This is a pure query/retrieval tool that fetches paginated topic listings without side effects. It only reads and returns knowledge base metadata to the caller. No data is created, modified, deleted, or used to trigger external operations. Classified as Read with low severity due to minimal blast radius if misused by an AI agent.

From the tool's definition Tool description states it 'retrieves' (获取) a list of topics/knowledge bases, returning topics array with metadata (topic_id, name, description, cover, stats), has_more, and total. No modification, deletion, or execution of operations occurs.

Documented attack patterns abuse exactly the kind of access list_topics gives an agent:

How to control list_topics

PolicyLayer is an MCP gateway — it sits between your AI agents and GetNote MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_topics:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_topics": {}
  }
}

list_topics is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register GetNote MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Free to start. No card required.

Related tools and policies

Go deeper

Questions about list_topics

What does the list_topics tool do? +

获取知识库列表(每页固定 20 条)。返回 topics[]、has_more、total。每个 topic 包含 topic_id(知识库 ID,后续所有接口的 topic_id 参数均传此值)、name、description、cover、stats(笔记数、文件数、博主数、直播数)等。. It is categorised as a Read tool in the GetNote MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_topics? +

Register the GetNote MCP Server MCP server in PolicyLayer and add a rule for list_topics: 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 GetNote MCP Server. Nothing to install.

What risk level is list_topics? +

list_topics is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_topics? +

Yes. Add a rate_limit block to the list_topics 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.

How do I block list_topics completely? +

Set action: deny in the PolicyLayer policy for list_topics. 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.

What MCP server provides list_topics? +

list_topics is provided by the GetNote MCP Server MCP server (iswalle/getnote-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GetNote MCP Server tool call.

Start from GetNote MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

26 GetNote MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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