Move/rename an object (server-side copy + delete source). (Refused read-only.)
AI agents call move_object to permanently remove resources in Rustfs — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
A move operation performs a copy followed by deletion of the source object. The deletion of the source is irreversible, making this a Destructive action. Misuse by an AI agent could result in permanent loss or relocation of objects in S3-compatible storage.
From the tool's definition Move/rename an object (server-side copy + delete source). (Refused read-only.)
Attacks that exploit this kind of access
Move/rename an object (server-side copy + delete source). (Refused read-only.). It is categorised as a Destructive tool in the Rustfs MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Rustfs MCP server in PolicyLayer and add a rule for move_object: 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 Rustfs. Nothing to install.
move_object 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 move_object 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 move_object. 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.
move_object is provided by the Rustfs MCP server (stackblaze/rustfs-mcp). 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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