List available OS images for creating servers. Returns system images (operating systems) like Ubuntu, Debian, CentOS, etc. Each image includes: - Name (e.g.,
AI agents call hetzner_list_images to retrieve information from Hetzner MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a purely informational tool that retrieves and displays available OS image options. It performs no create, modify, delete, or execute operations. The blast radius if misused by an agent is negligible—at worst it returns a list of public image options, which is non-sensitive operational metadata.
From the tool's definition Tool name 'list_images' and description 'List available OS images' indicate a query operation with no side effects. Returns metadata about available system images without modifying any infrastructure.
Attacks that exploit this kind of access
List available OS images for creating servers. Returns system images (operating systems) like Ubuntu, Debian, CentOS, etc. Each image includes: - Name (e.g.,. It is categorised as a Read tool in the Hetzner MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Hetzner MCP Server MCP server in PolicyLayer and add a rule for hetzner_list_images: 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 Hetzner MCP Server. Nothing to install.
hetzner_list_images is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the hetzner_list_images 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 hetzner_list_images. 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.
hetzner_list_images is provided by the Hetzner MCP Server MCP server (jurislm/hetzner-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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