disk_update
Update disk settings such as description, power management, SMART monitoring, and standby configuration.
This record as markdown: /tools/nasbridge/disk-update.md
What disk_update does on Nasbridge
AI agents use disk_update to create or update resources in Nasbridge, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nasbridge environment.
Why disk_update is rated Medium
This tool modifies disk configuration settings (description, power management, SMART monitoring, standby) which are system parameters that can be changed and reverted. It does not delete data or perform irreversible operations, nor does it execute arbitrary commands or involve financial transactions.
From the tool's definition Tool name 'disk_update' and description explicitly states it updates disk settings: 'description, power management, SMART monitoring, and standby configuration.' This is a reversible modification of disk configuration parameters.
Attacks that exploit this kind of access
The rule that runs disk_update 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 disk_update, this is the rule to start with:
disk_update stays usable, but capped: an agent stuck in a loop can't make hundreds of changes 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 disk_update call is checked against it from then on.
Questions about disk_update
Update disk settings such as description, power management, SMART monitoring, and standby configuration. It is categorised as a Write tool in the Nasbridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Nasbridge MCP server in PolicyLayer and add a rule for disk_update: 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.
disk_update is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the disk_update 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 disk_update. 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.
disk_update 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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