create_cards · Superthread Mcp Extended MCP: Risk & Policy

WHAT IT DOES

What create_cards does on Superthread Mcp Extended

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

WHY IT NEEDS A POLICY

Why create_cards needs a policy

This tool creates new data (cards) in a reversible manner—created cards can be deleted or modified later. It is not destructive (no deletion), not financial, and not execute-like (no arbitrary code/command execution). The 'parallel' execution method does not change the risk category.

From the tool's definition Tool name 'create_cards' and description 'Create multiple cards at once in parallel' directly indicate creation of data. The purpose is to add new cards to a Superthread board/space.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_cards Rate-limited

create_cards 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_cards": {
      "limits": [
        {
          "counter": "create_cards_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 Superthread Mcp Extended, so you can run agents against it safely.

FAQ

Questions about create_cards

What does the create_cards tool do? +

Create multiple cards at once in parallel. Use this instead of calling create_card repeatedly. It is categorised as a Write tool in the Superthread Mcp Extended 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_cards? +

Register the Superthread Mcp Extended MCP server in PolicyLayer and add a rule for create_cards: 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 Superthread Mcp Extended. Nothing to install.

What risk level is create_cards? +

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

Can I rate-limit create_cards? +

Yes. Add a rate_limit block to the create_cards 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_cards completely? +

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

create_cards is provided by the Superthread Mcp Extended MCP server (jaey-p/superthread-mcp-extended). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.