removeMemberFromCard · Trello MCP Server MCP: Risk & Policy

WHAT IT DOES

What removeMemberFromCard does on Trello MCP Server

AI agents use removeMemberFromCard 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 removeMemberFromCard needs a policy

Removing a member from a card is a reversible modification — the member can be re-added. It modifies card membership state but does not delete data permanently, making it a Write operation. Misuse could disrupt collaboration but is recoverable.

From the tool's definition Remove a member from a Trello card

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

removeMemberFromCard Rate-limited

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

FAQ

Questions about removeMemberFromCard

What does the removeMemberFromCard tool do? +

Remove a member from a Trello card. 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 removeMemberFromCard? +

Register the Trello MCP Server MCP server in PolicyLayer and add a rule for removeMemberFromCard: 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 removeMemberFromCard? +

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

Can I rate-limit removeMemberFromCard? +

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

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

removeMemberFromCard 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.