List all available labels
AI agents call list_labels to retrieve information from Vikunja MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation to enumerate labels in the Vikunja instance. It retrieves information without modifying, deleting, or executing any actions. The verb 'list' is a classic read operation. Blast radius is minimal as misuse would only expose label metadata already intended to be discoverable within the task management system.
From the tool's definition Tool name 'list_labels' and description 'List all available labels' indicate a query operation that retrieves data with no side effects.
Attacks that exploit this kind of access
List all available labels. It is categorised as a Read tool in the Vikunja MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Vikunja MCP Server MCP server in PolicyLayer and add a rule for list_labels: 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.
list_labels is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_labels 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 list_labels. 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.
list_labels 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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