trim_clip_by_frames

THE RISK

Medium Risk

Why trim_clip_by_frames needs a policy

This tool modifies clip boundaries (in/out points) within a Premiere Pro sequence. It changes project data but is reversible through undo operations, making it a Write-category action. Misuse could disrupt editing timelines but is not irreversible at a system level.

From the tool's definition Trim or extend the in/out point of a video or audio clip by a number of frames

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

POLICY

How to control trim_clip_by_frames

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

policy.json

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

trim_clip_by_frames 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 Premiere Pro 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

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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 trim_clip_by_frames

What does the trim_clip_by_frames tool do? +

Trim or extend the in/out point of a video or audio clip by a number of frames. It is categorised as a Write tool in the Premiere Pro 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 trim_clip_by_frames? +

Register the Premiere Pro MCP Server MCP server in PolicyLayer and add a rule for trim_clip_by_frames: 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 Premiere Pro MCP Server. Nothing to install.

What risk level is trim_clip_by_frames? +

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

Can I rate-limit trim_clip_by_frames? +

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

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

trim_clip_by_frames is provided by the Premiere Pro MCP Server MCP server (jordanl61/premiere-pro-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Premiere Pro MCP Server tool call.

Start from Premiere Pro 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 →