bigquery_cancel_job · Google Cloud MCP: Risk & Policy

WHAT IT DOES

What bigquery_cancel_job does on Google Cloud

AI agents call bigquery_cancel_job to permanently remove resources in Google Cloud — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

WHY IT NEEDS A POLICY

Why bigquery_cancel_job needs a policy

Cancelling a BigQuery job is irreversible; once cancelled, the job cannot be resumed. This could disrupt critical data processing pipelines, ETL jobs, or long-running queries. The blast radius is medium since it affects running jobs rather than stored data directly, but the action cannot be undone.

From the tool's definition 'Cancel a BigQuery job' - cancelling a running job is an irreversible action that terminates the job and cannot be undone

Attacks that exploit this kind of access

Questions about bigquery_cancel_job

What does the bigquery_cancel_job tool do? +

Cancel a BigQuery job. It is categorised as a Destructive tool in the Google Cloud MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on bigquery_cancel_job? +

Register the Google Cloud MCP server in PolicyLayer and add a rule for bigquery_cancel_job: 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 Google Cloud. Nothing to install.

What risk level is bigquery_cancel_job? +

bigquery_cancel_job is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit bigquery_cancel_job? +

Yes. Add a rate_limit block to the bigquery_cancel_job 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.

How do I block bigquery_cancel_job completely? +

Set action: deny in the PolicyLayer policy for bigquery_cancel_job. 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.

What MCP server provides bigquery_cancel_job? +

bigquery_cancel_job is provided by the Google Cloud MCP server (lockon-n/google-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.