archiveCard · Trello MCP Server MCP: Risk & Policy

WHAT IT DOES

What archiveCard does on Trello MCP Server

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

WHY IT NEEDS A POLICY

Why archiveCard needs a policy

Archiving a card is a reversible state change operation. Cards remain in the system and can be restored, so this is not destructive. The operation modifies data (card visibility and state) rather than reading it, placing it in the Write category. Severity is medium because archiving multiple cards could disrupt workflow visibility, but the action is easily undone.

From the tool's definition archiveCard - 'Archive or unarchive a Trello card. Archived cards are hidden from the board but can be restored.' The tool modifies card state reversibly (archived/unarchived) without permanent deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

archiveCard Rate-limited

archiveCard 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": {
    "archiveCard": {
      "limits": [
        {
          "counter": "archivecard_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 Trello MCP Server, so you can run agents against it safely.

FAQ

Questions about archiveCard

What does the archiveCard tool do? +

Archive or unarchive a Trello card. Archived cards are hidden from the board but can be restored. It is categorised as a Write tool in the Trello 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 archiveCard? +

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

What risk level is archiveCard? +

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

Can I rate-limit archiveCard? +

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

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

archiveCard is provided by the Trello MCP Server MCP server (semblancelabs/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.