assign_card · Framedeck MCP: Risk & Policy

WHAT IT DOES

What assign_card does on Framedeck

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

WHY IT NEEDS A POLICY

Why assign_card needs a policy

This tool creates or modifies assignments on a card, which is a reversible data modification typical of Write operations. Unassigning is also reversible. The blast radius is medium because incorrect assignment could disrupt team workflows, but the action is non-destructive and easily correctable.

From the tool's definition Assign or unassign a user to a card - modifies card metadata (assignments) but does not delete, destroy, or execute code.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

assign_card Rate-limited

assign_card 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": {
    "assign_card": {
      "limits": [
        {
          "counter": "assign_card_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 Framedeck, so you can run agents against it safely.

FAQ

Questions about assign_card

What does the assign_card tool do? +

Assign or unassign a user to a card. It is categorised as a Write tool in the Framedeck MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on assign_card? +

Register the Framedeck MCP server in PolicyLayer and add a rule for assign_card: 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 Framedeck. Nothing to install.

What risk level is assign_card? +

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

Can I rate-limit assign_card? +

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

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

assign_card is provided by the Framedeck MCP server (lukaris/framedeck-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.