An interface library for RL post training with environments.
OpenEnv is a framework for creating, deploying, and using isolated execution environments through simple APIs modeled on Gymnasium. It is intended for researchers and developers training agents with reinforcement learning, as well as creators who need secure environments that can be deployed and accessed through familiar protocols. The catalogue add-ons provide agent integrations and workflows for using OpenEnv.
Latest release v0.9.0 · 15 Oct 2026
32 files for Claude Code, Codex and OpenCode: hf-cli, openenv-cli, alignment-reviewer, build-validator and 28 more — 4,157 tokens loaded in every session.
AGENTS.md A 730 tok CLAUDE.md A 3,427 tok .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .agents/skills/hf-cli/SKILL.md C 46 tok .agents/skills/openenv-cli/SKILL.md A 25 tok .claude/skills/alignment-review/SKILL.md A 42 tok .claude/skills/deploy-hf/SKILL.md A 32 tok .claude/skills/generate-openenv-env/SKILL.md A 79 tok .claude/skills/hf-space-recovery/SKILL.md A 81 tok .claude/skills/implement/SKILL.md A 15 tok .claude/skills/pre-submit-pr/SKILL.md A 48 tok .claude/skills/release/SKILL.md A 21 tok .claude/skills/rfc-check/SKILL.md A 32 tok .claude/skills/simplify/SKILL.md A 24 tok .claude/skills/sprint/SKILL.md A 40 tok .claude/skills/update-docs/SKILL.md A 28 tok .claude/skills/watch-pr/SKILL.md A 48 tok .claude/skills/work-on-issue/SKILL.md A 27 tok .claude/skills/write-tests/SKILL.md A 17 tok .claude/agents/alignment-reviewer.md A 34 tok .claude/agents/build-validator.md A 23 tok .claude/agents/docs-updater.md A — .claude/agents/env-validator.md A 22 tok .claude/agents/implementer.md A 15 tok .claude/agents/issue-worker.md A 24 tok .claude/agents/openenv-architect.md A 22 tok .claude/agents/pr-planner.md A 13 tok .claude/agents/tester.md A 17 tok These files are huggingface/OpenEnv's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.