AI agents use archive_card 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.
Archiving modifies card state reversibly rather than permanently deleting data, placing it in the Write category. Severity is medium because an AI agent misusing this could clutter workflow by archiving important cards, but the action is recoverable. High confidence because the semantics of 'archive' in project management tools are well-established as reversible operations.
From the tool's definition Tool name 'archive_card' and description 'Archive a card' indicates a reversible state change to a card object in Trello. Archiving is a non-destructive operation that can be undone (cards can be unarchived), distinguishing it from deletion.
Documented attack patterns abuse exactly the kind of access archive_card gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trello MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for archive_card:
{
"version": "1",
"default": "deny",
"tools": {
"archive_card": {
"limits": [
{
"counter": "archive_card_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}archive_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.
Free to start. No card required.
Archive a 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.
Register the Trello MCP Server MCP server in PolicyLayer and add a rule for archive_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 Trello MCP Server. Nothing to install.
archive_card is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the archive_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.
Set action: deny in the PolicyLayer policy for archive_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.
archive_card is provided by the Trello MCP Server MCP server (lzvxck/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Trello MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
11 Trello MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.