NOTICE

This repository contains original code (MIT, see LICENSE) together with the
following vendored third-party components, each under its own license:

1. skill_entropy_rl/ — a modified fork of:
   - verl (https://github.com/volcengine/verl)
     Copyright 2023-2024 Bytedance Ltd. and/or its affiliates. Apache License 2.0.
     Apache-2.0 headers are preserved in the affected files under skill_entropy_rl/verl/.
   - verl-agent / GiGPO (https://github.com/langfengQ/verl-agent)
     Copyright 2025 Nanyang Technological University (NTU), Singapore and the
     verl-agent (GiGPO) team. See skill_entropy_rl/Notice.txt and skill_entropy_rl/LICENSE (MIT,
     Copyright (c) 2026 AIMING Lab).
   The upstream environment packages (ALFWorld, AppWorld, WebShop, Sokoban,
   gym-cards, search) and their assets were removed from this release for size;
   obtain them from the upstream verl-agent repository.

2. evaluation/math_evaluation/ — math answer grader derived from the Qwen2.5-Math
   evaluation toolkit (https://github.com/QwenLM/Qwen2.5-Math).
   MIT License, Copyright (c) 2024 Zhibin Gou. Includes latex2sympy
   (MIT, see evaluation/math_evaluation/latex2sympy/LICENSE.txt) and the ANTLR 4.11.1
   runtime jar (BSD-3-Clause).

Benchmark tasks in skill2_bench/ were generated with the assistance of large
language models; training traces in the data tarball contain model-generated
text. Seed corpora retain the licenses of their original sources (LiveCodeBench,
OpenR1-Math-220k, MMLU-Pro, WikiTableQuestions, Natural Plan, guru-RL-92k).