AI agents use create_server to create or update resources in Sacloud — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sacloud environment.
Creating a server is a reversible Write operation that provisions new cloud infrastructure. While significant in scope and blast radius (an AI agent could spawn expensive resources), it is not Destructive (reversible via deletion) and not Financial (no direct money movement, though cost implications exist).
From the tool's definition Tool name 'create_server' indicates creation of cloud infrastructure resources. Server description confirms this is a Sakura Cloud management tool enabling interaction with cloud resources.
Documented attack patterns abuse exactly the kind of access create_server gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sacloud, and nothing reaches the server without passing your rules. This is the rule we recommend for create_server:
{
"version": "1",
"default": "deny",
"tools": {
"create_server": {
"limits": [
{
"counter": "create_server_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_server 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.
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create_server. It is categorised as a Write tool in the Sacloud MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sacloud MCP server in PolicyLayer and add a rule for create_server: 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 Sacloud. Nothing to install.
create_server 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 create_server 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 create_server. 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.
create_server is provided by the Sacloud MCP server (sacloud/sacloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sacloud, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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37 Sacloud tools catalogued and risk-classified — across an index of 43,000+ MCP servers.