Lightroom Classic MCP

Instructions

Implementation Reference

• src/lightroom_mcp_custom/server.py:753-760 (handler)

  The tool `list_snapshots` is implemented as an async function decorated with `@mcp.tool()`, which validates input IDs and calls the internal `_call` helper to communicate with the Lightroom plugin.

  @mcp.tool()
  async def list_snapshots(local_ids: list[int] | None = None) -> dict[str, Any]:
      """List develop snapshots for the active photo."""
      ids = validate_local_ids(local_ids)
      payload: dict[str, Any] = {}
      if ids:
          payload["local_ids"] = ids
      return await _call("develop.list_snapshots", payload)