“Reinforcing Agents with Collective Skills” Thousands of developers have published Agent Skills on GitHub that contains instruction files which teach agents how to perform specific workflows. Skill2Env crawls these Skills and turns 3.4k of them into ~8k executable RL environments, preserving the workflows and quality criteria their authors wrote down. And after just 300 RL steps, Qwen3.8-27B gains +4.7 on Terminal-Bench 2.1 and +4.3 on…