arvan_s3_copy_object

Copy an object to another key/bucket.

SERVERArvanCloud MCP Server SOURCEdwin-gharibi/arvancloud-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwin-gharibi-arvancloud-mcp/arvan-s3-copy-object.md

WHAT IT DOES

What arvan_s3_copy_object does on ArvanCloud MCP Server

AI agents use arvan_s3_copy_object to create or update resources in ArvanCloud MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ArvanCloud MCP Server environment.

RISK

Why arvan_s3_copy_object is rated Medium

Copying objects in S3 is a write operation that creates new data objects and modifies storage state. While reversible (copies can be deleted), it has a high severity rating due to the potential for an AI agent to misuse this tool to copy sensitive data across buckets, create unauthorized duplicates of confidential information, or exhaust storage quotas through excessive copying.

From the tool's definition Tool description: 'Copy an object to another key/bucket.' The operation creates a duplicate of an object in S3 storage, modifying the state of the storage system by adding new data. This is reversible (the copy can be deleted).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs arvan_s3_copy_object safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ArvanCloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For arvan_s3_copy_object, this is the rule to start with:

arvan_s3_copy_object Rate-limited

arvan_s3_copy_object 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "arvan_s3_copy_object": {
      "limits": [
        {
          "counter": "arvan_s3_copy_object_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ArvanCloud MCP Server, apply this rule, and every arvan_s3_copy_object call is checked against it from then on.

FAQ

Questions about arvan_s3_copy_object

What does the arvan_s3_copy_object tool do? +

Copy an object to another key/bucket. It is categorised as a Write tool in the ArvanCloud MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on arvan_s3_copy_object? +

Register the ArvanCloud MCP Server MCP server in PolicyLayer and add a rule for arvan_s3_copy_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 ArvanCloud MCP Server. Nothing to install.

What risk level is arvan_s3_copy_object? +

arvan_s3_copy_object is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit arvan_s3_copy_object? +

Yes. Add a rate_limit block to the arvan_s3_copy_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.

How do I block arvan_s3_copy_object completely? +

Set action: deny in the PolicyLayer policy for arvan_s3_copy_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.

What MCP server provides arvan_s3_copy_object? +

arvan_s3_copy_object is provided by the ArvanCloud MCP Server MCP server (dwin-gharibi/arvancloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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