This record as markdown: /tools/nasbridge/cloud-backup-run.md
What cloud_backup_run does on Nasbridge
AI agents invoke cloud_backup_run to trigger actions in Nasbridge. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why cloud_backup_run is rated High
The tool executes a backup operation, which is a real-time action that initiates data transfer and processing on external systems. While not destructive in the sense of deletion, it is an Execute action because it triggers an irreversible operational sequence. Severity is high because a malicious agent could exhaust cloud storage, incur unexpected costs, or disrupt backup schedules.
From the tool's definition Tool name and description indicate 'Run a cloud backup task now' — this triggers an external operation (cloud backup execution) whose effects depend on system state and backup configuration.
Attacks that exploit this kind of access
The rule that runs cloud_backup_run safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nasbridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cloud_backup_run, this is the rule to start with:
cloud_backup_run stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nasbridge, apply this rule, and every cloud_backup_run call is checked against it from then on.
Questions about cloud_backup_run
Run a cloud backup task now. It is categorised as a Execute tool in the Nasbridge MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Nasbridge MCP server in PolicyLayer and add a rule for cloud_backup_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 Nasbridge. Nothing to install.
cloud_backup_run is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the cloud_backup_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 cloud_backup_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.
cloud_backup_run is provided by the Nasbridge MCP server (maverick0628/nasbridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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