resolve_grab_still · Resolve MCP: Risk & Policy

WHAT IT DOES

What resolve_grab_still does on Resolve

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

WHY IT NEEDS A POLICY

Why resolve_grab_still needs a policy

This tool creates or stores a new media asset (a still frame) in DaVinci Resolve's gallery, which is a write operation. It does not execute arbitrary code, delete data irreversibly, move funds, or cause destructive side effects. The blast radius is minimal — the worst outcome is an unwanted still in the gallery, which can be easily removed.

From the tool's definition 'Grab a still from the current frame to the gallery' — the tool creates a new still image asset in the gallery, which is a data creation operation that is reversible (the still can be deleted).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

resolve_grab_still Rate-limited

resolve_grab_still 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": {
    "resolve_grab_still": {
      "limits": [
        {
          "counter": "resolve_grab_still_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 Resolve, so you can run agents against it safely.

FAQ

Questions about resolve_grab_still

What does the resolve_grab_still tool do? +

Grab a still from the current frame to the gallery. It is categorised as a Write tool in the Resolve MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on resolve_grab_still? +

Register the Resolve MCP server in PolicyLayer and add a rule for resolve_grab_still: 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 Resolve. Nothing to install.

What risk level is resolve_grab_still? +

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

Can I rate-limit resolve_grab_still? +

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

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

resolve_grab_still is provided by the Resolve MCP server (jenkinsm13/resolve-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.