Lightroom Classic MCP

Instructions

Implementation Reference

• src/lightroom_mcp_custom/server.py:403-421 (handler)

  The implementation of the set_develop_group tool handler.

  async def set_develop_group(
      group: str,
      values: dict[str, Any],
      local_ids: list[int] | None = None,
      strict: bool = False,
      clamp: bool = True,
      history_name: str | None = None,
  ) -> dict[str, Any]:
      """Apply a partial update to one develop parameter group."""
      canonical, scoped_values = validate_group_values(group, values)
      response = await _apply_validated_settings(
          scoped_values,
          local_ids=local_ids,
          strict=strict,
          clamp=clamp,
          history_name=history_name or f"MCP Group: {canonical}",
      )
      response["group"] = canonical
      return response

• src/lightroom_mcp_custom/server.py:402-402 (registration)

  Registration of the set_develop_group tool via @mcp.tool() decorator.

  @mcp.tool()