Medium Risk

create_collection

Create a new collection in PocketBase note never use created and updated because these are already created

How to control create_collection ↓

What create_collection does on PocketBase MCP Server

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

Medium Risk

Why create_collection needs a policy

Creating a collection adds a new schema structure to the database, which is a reversible Write operation. It does not execute arbitrary code (Execute), permanently destroy data (Destructive), or involve financial transactions (Financial). The severity is medium because schema changes can impact application functionality and data organization, but collections can be deleted or modified to undo the change.

From the tool's definition Tool name 'create_collection' and description states 'Create a new collection in PocketBase' — this is a data creation operation that modifies the database schema reversibly.

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

How to control create_collection

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_collection": {
      "limits": [
        {
          "counter": "create_collection_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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.

  1. Create a free account and register PocketBase 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.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about create_collection

What does the create_collection tool do? +

Create a new collection in PocketBase note never use created and updated because these are already created. It is categorised as a Write tool in the PocketBase 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 create_collection? +

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

What risk level is create_collection? +

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

Can I rate-limit create_collection? +

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

Set action: deny in the PolicyLayer policy for 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 create_collection? +

create_collection is provided by the PocketBase MCP Server MCP server (mrwyndham/pocketbase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PocketBase MCP Server tool call.

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

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

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