list_data_files

List the refreshable data files (uploaded via upload_data) for a Deloc app, with sizes and last-updated time. Use this to check what data files exist and when they were last refreshed.

SERVERDeloc SOURCEdelocdev/deloc-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/deloc-mcp/list-data-files.md

WHAT IT DOES

What list_data_files does on Deloc

AI agents call list_data_files to retrieve information from Deloc without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_data_files is rated Low

This tool retrieves metadata about existing data files (names, sizes, timestamps) but performs no modifications, deletions, or execution. It is a straightforward read operation with minimal blast radius if misused by an AI agent.

From the tool's definition Tool description explicitly states it 'list[s]' data files and is used to 'check what data files exist' — pure query/inspection without side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_data_files safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Deloc, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_data_files, this is the rule to start with:

list_data_files Allowed

list_data_files is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_data_files": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Deloc, apply this rule, and every list_data_files call is checked against it from then on.

FAQ

Questions about list_data_files

What does the list_data_files tool do? +

List the refreshable data files (uploaded via upload_data) for a Deloc app, with sizes and last-updated time. Use this to check what data files exist and when they were last refreshed. It is categorised as a Read tool in the Deloc MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_data_files? +

Register the Deloc MCP server in PolicyLayer and add a rule for list_data_files: 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 Deloc. Nothing to install.

What risk level is list_data_files? +

list_data_files is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_data_files? +

Yes. Add a rate_limit block to the list_data_files 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.

How do I block list_data_files completely? +

Set action: deny in the PolicyLayer policy for list_data_files. 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.

What MCP server provides list_data_files? +

list_data_files is provided by the Deloc MCP server (delocdev/deloc-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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