List all available project presets with their descriptions.
AI agents call list_presets to retrieve information from Pypi:pypreset without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about available presets without modifying, executing, or deleting any data. It is a straightforward read operation with minimal risk if misused by an AI agent—worst case, it returns a large dataset, which is a negligible concern.
From the tool's definition Tool name is 'list_presets' and description states 'List all available project presets with their descriptions.' The verb 'list' indicates data retrieval with no side effects.
Attacks that exploit this kind of access
List all available project presets with their descriptions. It is categorised as a Read tool in the Pypi:pypreset MCP Server, which means it retrieves data without modifying state.
Register the Pypi:pypreset 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 Pypi:pypreset. 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 Pypi:pypreset MCP server (KaiErikNiermann/pypreset). 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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