AI agents use create_image_sharegroup to create or update resources in Linode MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Linode MCP Server environment.
This tool creates a new resource (image share group) that can be modified or deleted later, fitting the Write category. Severity is medium rather than low because misconfigured sharing permissions could expose images to unintended parties, and medium rather than high because the resource itself is not production-critical infrastructure. Confidence is high as the intent is unambiguous from the name and description.
From the tool's definition Tool creates a new image share group, which is a reversible modification to account configuration. The verb 'create' indicates data creation rather than deletion or financial action.
Documented attack patterns abuse exactly the kind of access create_image_sharegroup gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Linode MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_image_sharegroup:
{
"version": "1",
"default": "deny",
"tools": {
"create_image_sharegroup": {
"limits": [
{
"counter": "create_image_sharegroup_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_image_sharegroup 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 a new image share group. It is categorised as a Write tool in the Linode MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Linode MCP Server MCP server in PolicyLayer and add a rule for create_image_sharegroup: 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 Linode MCP Server. Nothing to install.
create_image_sharegroup 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_image_sharegroup 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_image_sharegroup. 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_image_sharegroup is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Linode MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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416 Linode MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.