generate_video_from_video

THE RISK

High Risk

Why generate_video_from_video needs a policy

This tool executes an external AI-powered video transformation pipeline (Gen-4 Aleph), which runs a computational process with real-world side effects (generating/transforming video content). It is not a simple read or write — it triggers an external operation whose effects depend on the input video and style arguments.

From the tool's definition 'Re-style or transform an existing video using Gen-4 Aleph' — triggers an external AI video generation/transformation operation

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

POLICY

How to control generate_video_from_video

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

policy.json

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

generate_video_from_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.

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

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

High-risk tools in Apple Shortcuts → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about generate_video_from_video

What does the generate_video_from_video tool do? +

Re-style or transform an existing video using Gen-4 Aleph. It is categorised as a Execute tool in the Apple Shortcuts MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on generate_video_from_video? +

Register the Apple Shortcuts MCP server in PolicyLayer and add a rule for generate_video_from_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 Apple Shortcuts. Nothing to install.

What risk level is generate_video_from_video? +

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

Can I rate-limit generate_video_from_video? +

Yes. Add a rate_limit block to the generate_video_from_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 generate_video_from_video completely? +

Set action: deny in the PolicyLayer policy for generate_video_from_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 generate_video_from_video? +

generate_video_from_video is provided by the Apple Shortcuts MCP server (@mindstone/mcp-server-apple-shortcuts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Apple Shortcuts tool call.

Start from Apple Shortcuts, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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