unsuspend_cards · Anki MCP Data Bridge MCP: Risk & Policy

WHAT IT DOES

What unsuspend_cards does on Anki MCP Data Bridge

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

WHY IT NEEDS A POLICY

Why unsuspend_cards needs a policy

This tool modifies card metadata (suspension flag) but does not delete data or execute arbitrary code. The change is reversible—cards can be suspended again. This is a standard Write operation that updates card state in the Anki database.

From the tool's definition Tool name 'unsuspend_cards' and description 'Unsuspend previously suspended cards' indicates modification of card suspension status, which is a reversible state change.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unsuspend_cards Rate-limited

unsuspend_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": {
    "unsuspend_cards": {
      "limits": [
        {
          "counter": "unsuspend_cards_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about unsuspend_cards

What does the unsuspend_cards tool do? +

Unsuspend previously suspended cards. It is categorised as a Write tool in the Anki MCP Data Bridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unsuspend_cards? +

Register the Anki MCP Data Bridge MCP server in PolicyLayer and add a rule for unsuspend_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 Anki MCP Data Bridge. Nothing to install.

What risk level is unsuspend_cards? +

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

Can I rate-limit unsuspend_cards? +

Yes. Add a rate_limit block to the unsuspend_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 unsuspend_cards completely? +

Set action: deny in the PolicyLayer policy for unsuspend_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 unsuspend_cards? +

unsuspend_cards is provided by the Anki MCP Data Bridge MCP server (stefanspycher/anki-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.