publish-answer · zhihu MCP Server MCP: Risk & Policy

WHAT IT DOES

What publish-answer does on zhihu MCP Server

AI agents use publish-answer to create or update resources in zhihu MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your zhihu MCP Server environment.

WHY IT NEEDS A POLICY

Why publish-answer needs a policy

Publishing an answer is a reversible write operation that creates new data on the Zhihu platform. While answers can theoretically be deleted later, the act of publishing commits content to a public forum with potential reputational and engagement consequences.

From the tool's definition Tool name 'publish-answer' and description '发布回答, publish answer' indicate the tool creates new content (answers) on Zhihu platform. This is a write operation that modifies the platform's data by adding user-generated content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish-answer Rate-limited

publish-answer 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "publish-answer": {
      "limits": [
        {
          "counter": "publish-answer_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches zhihu MCP Server, so you can run agents against it safely.

FAQ

Questions about publish-answer

What does the publish-answer tool do? +

发布回答, publish answer. It is categorised as a Write tool in the zhihu MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on publish-answer? +

Register the zhihu MCP Server MCP server in PolicyLayer and add a rule for publish-answer: 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 zhihu MCP Server. Nothing to install.

What risk level is publish-answer? +

publish-answer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit publish-answer? +

Yes. Add a rate_limit block to the publish-answer 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 publish-answer completely? +

Set action: deny in the PolicyLayer policy for publish-answer. 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 publish-answer? +

publish-answer is provided by the zhihu MCP Server MCP server (morrain/zhihumcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.