Reverts a GCNV managed volume to a previous snapshot.
AI agents call gcnv_snapshot_revert to permanently remove resources in Google Cloud NetApp Volumes MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Reverting a volume to a previous snapshot irreversibly overwrites all data written to the volume since that snapshot was taken. This is a destructive operation — any changes made after the snapshot point are permanently lost. The blast radius is critical because it affects an entire storage volume, potentially destroying large amounts of data that cannot be recovered.
From the tool's definition Reverts a GCNV managed volume to a previous snapshot
Attacks that exploit this kind of access
Reverts a GCNV managed volume to a previous snapshot. It is categorised as a Destructive tool in the Google Cloud NetApp Volumes MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Google Cloud NetApp Volumes MCP Server MCP server in PolicyLayer and add a rule for gcnv_snapshot_revert: 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 NetApp Volumes MCP Server. Nothing to install.
gcnv_snapshot_revert 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 gcnv_snapshot_revert 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 gcnv_snapshot_revert. 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.
gcnv_snapshot_revert is provided by the Google Cloud NetApp Volumes MCP Server MCP server (netapp/gcnv-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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