get_group_file_system_info
Get group file system information
This record as markdown: /tools/1021143806-napcat-mcp/get-group-file-system-info.md
What get_group_file_system_info does on NapCat MCP Server
AI agents call get_group_file_system_info to retrieve information from NapCat MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_group_file_system_info is rated Low
This tool retrieves or queries file system metadata from a group without side effects. It matches the 'Read' category definition: retrieves or queries data with no side effects. The low severity reflects that information disclosure alone poses minimal risk unless the group file structure is highly sensitive, but in a messaging platform context, file system metadata is typically non-critical operational data.
From the tool's definition Tool name 'get_group_file_system_info' and description 'Get group file system information' indicate a read-only query operation that retrieves information about a group's file system without modifying or deleting data.
Attacks that exploit this kind of access
The rule that runs get_group_file_system_info safely
PolicyLayer is an MCP gateway: it sits between your AI agents and NapCat MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_group_file_system_info, this is the rule to start with:
get_group_file_system_info 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 NapCat MCP Server, apply this rule, and every get_group_file_system_info call is checked against it from then on.
Questions about get_group_file_system_info
Get group file system information. It is categorised as a Read tool in the NapCat MCP Server MCP Server, which means it retrieves data without modifying state.
Register the NapCat MCP Server MCP server in PolicyLayer and add a rule for get_group_file_system_info: 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 NapCat MCP Server. Nothing to install.
get_group_file_system_info 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 get_group_file_system_info 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 get_group_file_system_info. 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.
get_group_file_system_info is provided by the NapCat MCP Server MCP server (1021143806/napcat_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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