Legato
Copyright 2026 the Legato authors

This product includes software from the following projects:

- OSWorld (https://github.com/xlang-ai/OSWorld), Apache License 2.0.
  `legato/rl/osworld_env.py` subclasses OSWorld's DesktopEnv. `LegatoDesktopEnv.step` is DesktopEnv.step from commit
  8903ebeb0efdf74331bd7dc37ed91ccbbff22317, modified: the final fixed sleep before the observation is replaced by the
  configured wait.

- Anthropic computer-use demo (https://github.com/anthropics/claude-quickstarts, computer-use-demo), MIT License,
  Copyright 2024 Anthropic, PBC. (computer-use-demo/LICENSE)
  `legato/harness.py` (`REFERENCE_SYSTEM`) quotes two lines of the demo's system prompt. `Harness.reference`
  re-implements the demo's loop behaviour: a 2 s screenshot delay, a screenshot per action, the screenshot sizes and
  keep-all history. The MIT license text follows.

  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
  documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all copies or substantial portions of
  the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
