List tickets in Ravenna with optional filters
AI agents call list_tickets to retrieve information from Ravenna MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists tickets from the help desk platform with optional filtering. It performs no side effects, does not create, modify, or delete tickets, and does not execute external operations. It is a straightforward read operation on existing data, fitting the 'Read' category with low severity since listing tickets presents minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'list_tickets' and description 'List tickets in Ravenna with optional filters' indicate a query/retrieval operation with no modification of data.
Attacks that exploit this kind of access
List tickets in Ravenna with optional filters. It is categorised as a Read tool in the Ravenna MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Ravenna MCP Server MCP server in PolicyLayer and add a rule for list_tickets: 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 Ravenna MCP Server. Nothing to install.
list_tickets 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_tickets 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_tickets. 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_tickets is provided by the Ravenna MCP Server MCP server (ravennahq/ravenna-mcp-server). 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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