create_snapshot

What create_snapshot does on Lightroom Classic MCP

AI agents use create_snapshot 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 create_snapshot is rated Medium

Snapshots in Lightroom Classic are named checkpoints of develop settings that can be freely deleted or reverted without permanent data loss. This is a reversible write operation that modifies the photo's internal state (adding a snapshot entry) rather than the underlying image file. The blast radius is minimal—misuse would only clutter the snapshot history, not cause data loss or side effects beyond Lightroom.

From the tool's definition Tool description states 'Create a named develop snapshot', which creates a new, reversible artifact (a snapshot) in Lightroom's develop history. This is not data deletion or external execution, but rather creation of a named state that can be undone.

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

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

Questions about create_snapshot