Delete a custom field group
AI agents call planka_delete_custom_field_group to permanently remove resources in Planka MCP Server for Claude — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool performs an irreversible deletion operation on a custom field group within a Planka project management system. While the blast radius is scoped to removing field group metadata (not user data or financial systems), the deletion cannot be undone and may disrupt workflows that depend on those field definitions. This fits the Destructive category as it permanently removes data structures.
From the tool's definition Tool name contains 'delete' and description explicitly states 'Delete a custom field group'; this irreversibly removes a custom field group configuration.
Attacks that exploit this kind of access
Delete a custom field group. It is categorised as a Destructive tool in the Planka MCP Server for Claude MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Planka MCP Server for Claude MCP server in PolicyLayer and add a rule for planka_delete_custom_field_group: 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_delete_custom_field_group is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the planka_delete_custom_field_group 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_delete_custom_field_group. 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_delete_custom_field_group 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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