Lightroom Classic MCP

Instructions

Implementation Reference

• src/lightroom_mcp_custom/server.py:345-366 (handler)

  The `set_develop_param` tool handler function, which sets a single develop parameter for photos. It internally uses `_apply_validated_settings` to perform the operation.

  async def set_develop_param(
      parameter: str,
      value: Any,
      local_ids: list[int] | None = None,
      strict: bool = False,
      clamp: bool = True,
      history_name: str | None = None,
  ) -> dict[str, Any]:
      """Set a single develop parameter across selected photos or local_ids."""
      if not parameter:
          raise ValueError("parameter is required")
  
      response = await _apply_validated_settings(
          {parameter: value},
          local_ids=local_ids,
          strict=strict,
          clamp=clamp,
          history_name=history_name,
      )
      response["parameter"] = parameter
      response["value"] = response["applied_settings"][parameter]
      return response