Delete a task by ID
AI agents call delete_task to permanently remove resources in Vikunja MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deletion of tasks cannot be reversed and permanently removes data. This is the most severe category applicable. While the blast radius depends on task importance and system backups, a misused tool could delete critical project work. Severity is 'high' rather than 'critical' because impact is scoped to individual tasks rather than bulk operations or system-wide destruction.
From the tool's definition Tool name is 'delete_task' with description 'Delete a task by ID'. The verb 'delete' is explicitly destructive—it irreversibly removes data with no undo mechanism in typical task management systems.
Attacks that exploit this kind of access
Delete a task by ID. It is categorised as a Destructive tool in the Vikunja MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Vikunja MCP Server MCP server in PolicyLayer and add a rule for delete_task: 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 Vikunja MCP Server. Nothing to install.
delete_task 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 delete_task 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 delete_task. 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.
delete_task is provided by the Vikunja MCP Server MCP server (wosh-i/vikunja-mcp). 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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