Assign a user to a card
AI agents use planka_assign_user_to_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.
This operation creates or modifies card data (user assignments) in a reversible manner—assignments can be removed or changed. It does not execute arbitrary code, delete data permanently, or move financial resources. The medium severity reflects that misuse could reassign work to wrong users, causing disruption to project workflows, but the effect is limited to the card assignment scope and easily correctable.
From the tool's definition Tool name 'planka_assign_user_to_card' and description 'Assign a user to a card' indicate the tool modifies card state by adding a user assignment, which is reversible metadata modification to a project management card.
Attacks that exploit this kind of access
Assign a user to 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_assign_user_to_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_assign_user_to_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_assign_user_to_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_assign_user_to_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_assign_user_to_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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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