List available device presets with their configurations
AI agents call list_device_presets to retrieve information from Screenshot MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists existing device preset data. It performs a read-only operation that queries configuration information without modifying, executing, or deleting anything. The blast radius is minimal—an AI agent cannot misuse this to cause harm, only to discover what device options are available.
From the tool's definition Tool name 'list_device_presets' and description 'List available device presets with their configurations' indicate a query/retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access list_device_presets gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Screenshot MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_device_presets:
{
"version": "1",
"default": "deny",
"tools": {
"list_device_presets": {}
}
}list_device_presets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List available device presets with their configurations. It is categorised as a Read tool in the Screenshot MCP MCP Server, which means it retrieves data without modifying state.
Register the Screenshot MCP server in PolicyLayer and add a rule for list_device_presets: 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 Screenshot MCP. Nothing to install.
list_device_presets 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 list_device_presets 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 list_device_presets. 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.
list_device_presets is provided by the Screenshot MCP server (upnorthmedia/screenshotmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 3 Screenshot MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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3 Screenshot MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.