This record as markdown: /tools/io-github-homenshum-nodebench/listfolders.md
What listFolders does on Nodebench
AI agents call listFolders to retrieve information from Nodebench without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why listFolders is rated Low
This tool retrieves folder information from the user's filesystem or storage system. The verb 'list' and the absence of any modification language (create, update, delete) clearly indicate a read-only operation with no side effects. Severity is low because folder enumeration has minimal blast radius unless the system contains highly sensitive structural information, which is not indicated here.
From the tool's definition Tool name 'listFolders' and description 'List all user folders' indicate a query operation that retrieves data without modification.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs listFolders safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nodebench, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For listFolders, this is the rule to start with:
listFolders is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nodebench, apply this rule, and every listFolders call is checked against it from then on.
Questions about listFolders
List all user folders. It is categorised as a Read tool in the Nodebench MCP Server, which means it retrieves data without modifying state.
Register the Nodebench MCP server in PolicyLayer and add a rule for listFolders: 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 Nodebench. Nothing to install.
listFolders 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 listFolders 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 listFolders. 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.
listFolders is provided by the Nodebench MCP server (nodebench-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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