Lightroom Classic MCP

Instructions

Implementation Reference

• src/lightroom_mcp_custom/server.py:434-453 (handler)

  The implementation of the apply_develop_preset tool, which merges overrides and applies settings via _apply_validated_settings.

  @mcp.tool()
  async def apply_develop_preset(
      preset: str,
      local_ids: list[int] | None = None,
      overrides: dict[str, Any] | None = None,
      strict: bool = False,
      clamp: bool = True,
      history_name: str | None = None,
  ) -> dict[str, Any]:
      """Apply a named preset with optional parameter overrides."""
      preset_name, settings = merge_preset_overrides(preset, overrides)
      response = await _apply_validated_settings(
          settings,
          local_ids=local_ids,
          strict=strict,
          clamp=clamp,
          history_name=history_name or f"MCP Preset: {preset_name}",
      )
      response["preset"] = preset_name
      return response