set_develop_group

What set_develop_group does on Lightroom Classic MCP

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

Why set_develop_group is rated Medium

This tool modifies photo metadata and editing parameters (develop settings) but does not delete data or execute arbitrary code. Changes to develop settings are reversible through Lightroom's undo functionality or by applying different presets/settings. The blast radius is contained to individual photos' non-destructive edits, making it Write rather than Execute or Destructive.

From the tool's definition Tool description states 'Apply a partial update to one develop parameter group' — this modifies develop settings in Lightroom Classic, which are photo editing parameters that can be reversed (undone) through the UI or by applying different settings.

The rule that runs set_develop_group safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Lightroom Classic MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_develop_group, this is the rule to start with:

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

Questions about set_develop_group