zernio_list_media

List all uploaded media files in your Zernio media library.

SERVERZernio SOURCEeyalm321/zernio-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/eyalm321-zernio-mcp/zernio-list-media.md

WHAT IT DOES

What zernio_list_media does on Zernio

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

RISK

Why zernio_list_media is rated Low

This tool queries and returns a list of existing media files without creating, modifying, deleting, or executing any actions. It is a standard read/retrieval operation with minimal security risk—the worst outcome of misuse would be information disclosure of media metadata already belonging to the account.

From the tool's definition Tool name 'zernio_list_media' and description 'List all uploaded media files in your Zernio media library' indicate a retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs zernio_list_media safely

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

zernio_list_media Allowed

zernio_list_media 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": {
    "zernio_list_media": {}
  }
}

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

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

FAQ

Questions about zernio_list_media

What does the zernio_list_media tool do? +

List all uploaded media files in your Zernio media library. It is categorised as a Read tool in the Zernio MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on zernio_list_media? +

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

What risk level is zernio_list_media? +

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

Can I rate-limit zernio_list_media? +

Yes. Add a rate_limit block to the zernio_list_media 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 zernio_list_media completely? +

Set action: deny in the PolicyLayer policy for zernio_list_media. 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 zernio_list_media? +

zernio_list_media is provided by the Zernio MCP server (eyalm321/zernio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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