Lightroom Classic MCP

Instructions

Implementation Reference

• src/lightroom_mcp_custom/server.py:369-376 (handler)

  The MCP tool handler function for 'list_develop_groups' which calls the helper function list_group_descriptions.

  @mcp.tool()
  async def list_develop_groups() -> dict[str, Any]:
      """List grouped develop parameter sets for faster targeted edits."""
      groups = list_group_descriptions()
      return {
          "count": len(groups),
          "groups": groups,
      }

• src/lightroom_mcp_custom/workflows.py:385-395 (helper)

  Helper function that generates the list of develop group descriptions used by the 'list_develop_groups' tool.

  def list_group_descriptions() -> list[dict[str, Any]]:
      out: list[dict[str, Any]] = []
      for name in sorted(DEVELOP_GROUPS):
          params = DEVELOP_GROUPS[name]
          out.append(
              {
                  "group": name,
                  "parameter_count": len(params),
                  "parameters": [describe_parameter(param) for param in params],
              }
          )