刪除文件
AI agents call delete_file to permanently remove resources in Node Js MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly removes data from the file system without the ability to undo the operation. Even with careful constraints, an AI agent invoking this with incorrect paths could permanently destroy user files, configuration, or critical system data. This represents a high blast radius and belongs in the Destructive category, which supersedes all others due to the permanent nature of the action.
From the tool's definition Tool name 'delete_file' and description '刪除文件' (Chinese: 'delete file') explicitly indicate irreversible deletion of files.
Attacks that exploit this kind of access
刪除文件. It is categorised as a Destructive tool in the Node Js MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Node Js MCP Server MCP server in PolicyLayer and add a rule for delete_file: 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 Node Js MCP Server. Nothing to install.
delete_file is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_file 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 delete_file. 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.
delete_file is provided by the Node Js MCP Server MCP server (weiweicode/20250923mcptest). 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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