play_similar · Social Video MCP: Risk & Policy

WHAT IT DOES

What play_similar does on Social Video

AI agents invoke play_similar to trigger actions in Social Video. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why play_similar needs a policy

This tool executes an external media player operation (launching/controlling mpv) based on the currently playing video. It triggers real-world side effects (playing media) and depends on dynamic arguments/state. It is not merely reading data, as it actively controls an external application.

From the tool's definition 'Play videos similar to what is currently playing. Fetches the current video' — triggers external playback operation via native mpv player window

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

play_similar Rate-limited

play_similar stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "play_similar": {
      "limits": [
        {
          "counter": "play_similar_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Social Video, so you can run agents against it safely.

FAQ

Questions about play_similar

What does the play_similar tool do? +

Play videos similar to what is currently playing. Fetches the current video\. It is categorised as a Execute tool in the Social Video MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on play_similar? +

Register the Social Video MCP server in PolicyLayer and add a rule for play_similar: 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 Social Video. Nothing to install.

What risk level is play_similar? +

play_similar is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit play_similar? +

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

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

play_similar is provided by the Social Video MCP server (ronantakizawa/social-video-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.