rag_create_collection · MCP Math Calculator Server MCP

WHAT IT DOES

What rag_create_collection does on MCP Math Calculator Server

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

WHY IT NEEDS A POLICY

Why rag_create_collection needs a policy

This tool creates new data structures (RAG collections) which is reversible—collections can be deleted or recreated. It does not execute arbitrary code, delete data irreversibly, or move money. The medium severity reflects that creating collections could consume storage resources or affect system state, but the impact is bounded and recoverable.

From the tool's definition Tool name 'rag_create_collection' and description 'Create a new RAG collection if it doesn't exist' indicate data creation. The verb 'create' and action of instantiating a new collection establish write semantics.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rag_create_collection Rate-limited

rag_create_collection 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": {
    "rag_create_collection": {
      "limits": [
        {
          "counter": "rag_create_collection_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about rag_create_collection

What does the rag_create_collection tool do? +

Create a new RAG collection if it doesn't exist. It is categorised as a Write tool in the MCP Math Calculator 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 rag_create_collection? +

Register the MCP Math Calculator Server MCP server in PolicyLayer and add a rule for rag_create_collection: 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 MCP Math Calculator Server. Nothing to install.

What risk level is rag_create_collection? +

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

Can I rate-limit rag_create_collection? +

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

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

rag_create_collection is provided by the MCP Math Calculator Server MCP server (r-yash/mcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.