Mark a test run as completed/archived. This is irreversible in TestRail.
AI agents call close_run to permanently remove resources in Testrail — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Although 'close_run' does not delete data in the traditional sense, it irreversibly transitions a test run to a terminal state (archived/completed), preventing further modifications and effectively removing it from active use.
From the tool's definition The description explicitly states the action is 'irreversible in TestRail' and involves marking a test run as 'completed/archived,' which permanently changes the state of a test run artifact and cannot be undone.
Attacks that exploit this kind of access
Mark a test run as completed/archived. This is irreversible in TestRail. It is categorised as a Destructive tool in the Testrail MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Testrail MCP server in PolicyLayer and add a rule for close_run: 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 Testrail. Nothing to install.
close_run 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 close_run 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 close_run. 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.
close_run is provided by the Testrail MCP server (sergey-bl/testrail-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.
Teams ship this data inside their own products. See what a licence covers →