create_knowledge_library · Ai Books MCP: Risk & Policy

WHAT IT DOES

What create_knowledge_library does on Ai Books

AI agents use create_knowledge_library to create or update resources in Ai Books — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ai Books environment.

WHY IT NEEDS A POLICY

Why create_knowledge_library needs a policy

This tool creates a new data structure (knowledge library) but does not delete, execute arbitrary code, or commit financial transactions. Creation of new data structures is a Write-category operation.

From the tool's definition Tool description states it 'Creates a new knowledge library', which is a create operation that modifies data reversibly. The sibling tool 'delete_knowledge_library' confirms libraries can be deleted, reinforcing that creation is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_knowledge_library Rate-limited

create_knowledge_library 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": {
    "create_knowledge_library": {
      "limits": [
        {
          "counter": "create_knowledge_library_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 Ai Books, so you can run agents against it safely.

FAQ

Questions about create_knowledge_library

What does the create_knowledge_library tool do? +

Creates a new knowledge library by compressing text using gravitational memory. It is categorised as a Write tool in the Ai Books MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_knowledge_library? +

Register the Ai Books MCP server in PolicyLayer and add a rule for create_knowledge_library: 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 Ai Books. Nothing to install.

What risk level is create_knowledge_library? +

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

Can I rate-limit create_knowledge_library? +

Yes. Add a rate_limit block to the create_knowledge_library 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 create_knowledge_library completely? +

Set action: deny in the PolicyLayer policy for create_knowledge_library. 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 create_knowledge_library? +

create_knowledge_library is provided by the Ai Books MCP server (nvmtoxic/ai-books-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.