Cancel a running CI/CD job.
AI agents call cancel_job_tool to permanently remove resources in MCP Gitlab — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a running CI/CD job is an irreversible action — the job cannot be resumed from where it stopped. This can interrupt deployments, tests, or automated pipelines, potentially causing build failures or blocking releases. The blast radius is high as misuse could disrupt critical automation workflows.
From the tool's definition Cancel a running CI/CD job
Attacks that exploit this kind of access
Cancel a running CI/CD job. It is categorised as a Destructive tool in the MCP Gitlab MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP Gitlab MCP server in PolicyLayer and add a rule for cancel_job_tool: 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 Gitlab. Nothing to install.
cancel_job_tool 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 cancel_job_tool 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 cancel_job_tool. 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.
cancel_job_tool is provided by the MCP Gitlab MCP server (mcp-gitlab-crunchtools). 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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