High Risk →

play_video

使用 ffplay 播放视频文件,支持mkv,mp4,mov,avi,3gp等等 参数: video_path(str) - 视频文件的路径。 speed(float) - 浮点型,播放速率,建议0.5-2之间。 loop(int) - 整形,是否循环播放,1:不循环,播放后就退出,0: 循环播放。

How to control play_video ↓

AI agents invoke play_video to trigger actions in FFmpeg-MCP Server. 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.

High Risk

This tool executes an external process (ffplay) to play a video, triggering an external operation on the local system. It does not read/query data in a passive sense, nor does it write or destroy data. The blast radius is medium: misuse could cause unwanted media playback or resource consumption, but it does not modify or delete files.

From the tool's definition 使用 ffplay 播放视频文件 — launches an external ffplay process to play a video file

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "play_video": {
      "limits": [
        {
          "counter": "play_video_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

play_video 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.

  1. Create a free account and register FFmpeg-MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the play_video tool do? +

使用 ffplay 播放视频文件,支持mkv,mp4,mov,avi,3gp等等 参数: video_path(str) - 视频文件的路径。 speed(float) - 浮点型,播放速率,建议0.5-2之间。 loop(int) - 整形,是否循环播放,1:不循环,播放后就退出,0: 循环播放。. It is categorised as a Execute tool in the FFmpeg-MCP Server 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_video? +

Register the FFmpeg-MCP Server MCP server in PolicyLayer and add a rule for play_video: 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 FFmpeg-MCP Server. Nothing to install.

What risk level is play_video? +

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

Can I rate-limit play_video? +

Yes. Add a rate_limit block to the play_video 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_video completely? +

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

play_video is provided by the FFmpeg-MCP Server MCP server (video-creator/ffmpeg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FFmpeg-MCP Server tool call.

Deterministic rules across all 8 FFmpeg-MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

8 FFmpeg-MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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