Unassign a user from a card
AI agents use planka_unassign_user_from_card to create or update resources in Planka MCP Server for Claude — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Planka MCP Server for Claude environment.
Unassigning a user from a card modifies the card's state by removing a user assignment, which is a Write-category operation (creates/modifies data reversibly). Severity is medium because misuse could disrupt project workflow by incorrectly removing task assignments, but the action is fully reversible by reassigning the user.
From the tool's definition Tool name 'planka_unassign_user_from_card' and description 'Unassign a user from a card' indicate modification of card assignment state. This is a reversible write operation that changes card metadata without deleting data.
Attacks that exploit this kind of access
Unassign a user from a card. It is categorised as a Write tool in the Planka MCP Server for Claude MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Planka MCP Server for Claude MCP server in PolicyLayer and add a rule for planka_unassign_user_from_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 Planka MCP Server for Claude. Nothing to install.
planka_unassign_user_from_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 planka_unassign_user_from_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 planka_unassign_user_from_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.
planka_unassign_user_from_card is provided by the Planka MCP Server for Claude MCP server (nextheberg/planka-mcp-server-for-claude). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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