apply_lightroom_preset

Apply a Lightroom develop preset by its UUID.

SERVERLightroom Classic MCP SOURCE4xiomdev/lightroom-classic-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/4xiomdev-lightroom-classic-mcp/apply-lightroom-preset.md

WHAT IT DOES

What apply_lightroom_preset does on Lightroom Classic MCP

AI agents use apply_lightroom_preset 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.

RISK

Why apply_lightroom_preset is rated Medium

This tool creates or modifies photo editing settings reversibly—a core Write operation. It does not delete data (ruling out Destructive), execute arbitrary code (ruling out Execute), or involve financial transactions. The 'medium' severity reflects that incorrect preset application could affect large batches of photos, but changes are reversible via undo or re-editing.

From the tool's definition Tool 'apply_lightroom_preset' applies (modifies) a Lightroom develop preset to photos. The server description indicates it 'automate[s] workflows' and 'apply[ies] develop settings', confirming that this tool modifies photo metadata and development parameters…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs apply_lightroom_preset 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 apply_lightroom_preset, this is the rule to start with:

apply_lightroom_preset Rate-limited

apply_lightroom_preset 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": {
    "apply_lightroom_preset": {
      "limits": [
        {
          "counter": "apply_lightroom_preset_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Lightroom Classic MCP, apply this rule, and every apply_lightroom_preset call is checked against it from then on.

FAQ

Questions about apply_lightroom_preset

What does the apply_lightroom_preset tool do? +

Apply a Lightroom develop preset by its UUID. It is categorised as a Write tool in the Lightroom Classic 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 apply_lightroom_preset? +

Register the Lightroom Classic MCP server in PolicyLayer and add a rule for apply_lightroom_preset: 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 Lightroom Classic MCP. Nothing to install.

What risk level is apply_lightroom_preset? +

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

Can I rate-limit apply_lightroom_preset? +

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

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

apply_lightroom_preset is provided by the Lightroom Classic MCP server (4xiomdev/lightroom-classic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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