list_media_items

THE RISK

Low Risk

Why list_media_items needs a policy

This tool retrieves and enumerates media items from the user's Google Photos library without creating, modifying, or deleting any content. It is a read-only query operation. While it does expose potentially sensitive personal photos/metadata, the severity remains low because the blast radius of misuse is limited to unauthorized enumeration rather than data destruction or financial impact.

From the tool's definition Tool name 'list_media_items' and description 'List all media items in the library' indicate a retrieval operation with no modification of data. The server description emphasizes 'search, browse, and retrieve metadata and images' as core functionality.

Documented attack patterns abuse exactly the kind of access list_media_items gives an agent:

POLICY

How to control list_media_items

PolicyLayer is an MCP gateway — it sits between your AI agents and Google Photos MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_media_items:

policy.json

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

list_media_items is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Google Photos MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Google Photos MCP Server tools

Execute start_auth Start Google OAuth authentication flow. Spins up a temporary local server, returns a URL t Write add_album_enrichment Add a text or location enrichment to a Google Photos album. Write add_media_to_album Add existing media items to a Google Photos album. Maximum 50 items per call. Write create_album Create a new Google Photos album Write create_album_with_media Create a new album and upload multiple local files to it in one step. Handles partial fail Write create_picker_session Create a Google Photos Picker session. Returns a pickerUri the user must open in their bro Write set_album_cover Set the cover photo of a Google Photos album. Write upload_media Upload a local media file to Google Photos. Reads bytes from filePath and creates a new me

All 19 Google Photos MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_media_items

What does the list_media_items tool do? +

List all media items in the library (not filtered by album). It is categorised as a Read tool in the Google Photos MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_media_items? +

Register the Google Photos MCP Server MCP server in PolicyLayer and add a rule for list_media_items: 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 Google Photos MCP Server. Nothing to install.

What risk level is list_media_items? +

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

Can I rate-limit list_media_items? +

Yes. Add a rate_limit block to the list_media_items 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_media_items completely? +

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

list_media_items is provided by the Google Photos MCP Server MCP server (savethepolarbears/google-photos-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Google Photos MCP Server tool call.

Start from Google Photos MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →