Cancel a queued build by queue ID
AI agents call jenkins_cancel_queue to permanently remove resources in Mcp Jenkins — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a queued build permanently removes it from the build queue. There is no way to re-queue the exact same build automatically, making this action irreversible. It affects CI/CD pipeline execution and could disrupt deployment workflows if misused.
From the tool's definition 'Cancel a queued build by queue ID' — cancelling a queued build is an irreversible removal of the queued item; once cancelled, the build entry is gone and cannot be restored.
Attacks that exploit this kind of access
Cancel a queued build by queue ID. It is categorised as a Destructive tool in the Mcp Jenkins MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp Jenkins MCP server in PolicyLayer and add a rule for jenkins_cancel_queue: 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 Mcp Jenkins. Nothing to install.
jenkins_cancel_queue 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 jenkins_cancel_queue 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 jenkins_cancel_queue. 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.
jenkins_cancel_queue is provided by the Mcp Jenkins MCP server (@kud/mcp-jenkins). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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