List all available presets in the presets directory. Optionally includes full manifest metadata for each preset. Args: - include_metadata (boolean): Include full manifest for each preset (default: false) Returns: Array of preset IDs, or array of preset manifests if include_metadata is true.
AI agents call list_presets to retrieve information from UI Preset 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 pure query/retrieval operation with no side effects. It enumerates and retrieves preset information without creating, modifying, or deleting data. The optional metadata inclusion does not change the fundamental read-only nature of the operation.
From the tool's definition Tool lists available presets and optionally includes metadata. The description explicitly states it 'List[s] all available presets' and 'returns array of preset IDs, or array of preset manifests'.
Attacks that exploit this kind of access
List all available presets in the presets directory. Optionally includes full manifest metadata for each preset. Args: - include_metadata (boolean): Include full manifest for each preset (default: false) Returns: Array of preset IDs, or array of preset manifests if include_metadata is true. It is categorised as a Read tool in the UI Preset MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UI Preset MCP Server MCP server in PolicyLayer and add a rule for list_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 UI Preset MCP Server. Nothing to install.
list_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_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_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_presets is provided by the UI Preset MCP Server MCP server (ncsound919/og-glass). 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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