AI agents call list_folders to retrieve information from MCP-RAGAnything without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a listing/query operation on MinIO object storage. It retrieves information about folder structure under a specified prefix but does not create, modify, delete, or execute any operations. The action is read-only with no side effects, consistent with the Read category.
From the tool's definition Tool name 'list_folders' combined with description 'List folders in MinIO storage under a given prefix' indicates a retrieval operation that enumerates directory structures without modification or side effects.
Documented attack patterns abuse exactly the kind of access list_folders gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-RAGAnything, and nothing reaches the server without passing your rules. This is the rule we recommend for list_folders:
{
"version": "1",
"default": "deny",
"tools": {
"list_folders": {}
}
}list_folders is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List folders in MinIO storage under a given prefix. It is categorised as a Read tool in the MCP-RAGAnything MCP Server, which means it retrieves data without modifying state.
Register the MCP-RAGAnything MCP server in PolicyLayer and add a rule for list_folders: 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 MCP-RAGAnything. Nothing to install.
list_folders 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_folders 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_folders. 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_folders is provided by the MCP-RAGAnything MCP server (soludevtech/mcp-raganything). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP-RAGAnything, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
9 MCP-RAGAnything tools catalogued and risk-classified — across an index of 43,000+ MCP servers.