add_filter · Media-Editor- MCP: Risk & Policy

WHAT IT DOES

What add_filter does on Media-Editor-MCP

AI agents use add_filter to create or update resources in Media-Editor-MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Media-Editor-MCP environment.

WHY IT NEEDS A POLICY

Why add_filter needs a policy

This tool creates or modifies video clip attributes reversibly (filters can be removed or adjusted). It does not execute arbitrary code, delete content, or move resources. It falls squarely into Write category as it transforms media properties without destructive intent.

From the tool's definition Tool name 'add_filter' and description 'Apply a color filter to a clip' indicate creation/modification of clip properties. This modifies video content by applying visual effects, analogous to adding a Lumetri look or LUT in Adobe Premiere Pro.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_filter Rate-limited

add_filter 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about add_filter

What does the add_filter tool do? +

Apply a color filter to a clip (the CapCut analogue of a Lumetri look/LUT). It is categorised as a Write tool in the Media-Editor-MCP 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_filter? +

Register the Media-Editor- MCP server in PolicyLayer and add a rule for add_filter: 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 Media-Editor-MCP. Nothing to install.

What risk level is add_filter? +

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

Can I rate-limit add_filter? +

Yes. Add a rate_limit block to the add_filter 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_filter completely? +

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

add_filter is provided by the Media-Editor- MCP server (nguyenph88/media-editor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.