add_media_to_album

THE RISK

Medium Risk

Why add_media_to_album needs a policy

This tool modifies the state of Google Photos albums by adding media items to them. This is a Write operation—it creates new relationships between media and albums, is reversible (items can be removed), and has side effects but no permanent data loss or financial impact.

From the tool's definition Tool description explicitly states it 'Add[s] existing media items to a Google Photos album,' which is a reversible creation/modification operation. The limitation of 'Maximum 50 items per call' confirms it performs a write action with defined scope.

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

POLICY

How to control add_media_to_album

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 add_media_to_album:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_media_to_album": {
      "limits": [
        {
          "counter": "add_media_to_album_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

add_media_to_album stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. 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.

LIMIT 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 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 Read auth_status Check authentication status with Google Photos

All 19 Google Photos MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about add_media_to_album

What does the add_media_to_album tool do? +

Add existing media items to a Google Photos album. Maximum 50 items per call. It is categorised as a Write tool in the Google Photos MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_media_to_album? +

Register the Google Photos MCP Server MCP server in PolicyLayer and add a rule for add_media_to_album: 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 add_media_to_album? +

add_media_to_album is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_media_to_album? +

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

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

add_media_to_album 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 →