Directory contents dekhna
AI agents call file_list to retrieve information from Universal Dev MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists directory contents without modifying, deleting, or executing anything. It is a read-only operation analogous to 'ls' or 'dir' commands. The blast radius of misuse is minimal—an attacker gains visibility into file structure but cannot modify, delete, or execute code.
From the tool's definition Tool name 'file_list' and description 'Directory contents dekhna' (viewing directory contents) indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Directory contents dekhna. It is categorised as a Read tool in the Universal Dev MCP MCP Server, which means it retrieves data without modifying state.
Register the Universal Dev MCP server in PolicyLayer and add a rule for file_list: 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 Universal Dev MCP. Nothing to install.
file_list 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 file_list 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 file_list. 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.
file_list is provided by the Universal Dev MCP server (kallusuvaidyam/universal_mcp). 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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