Flight Log / marin-community/marin #1440

Add SimpleEnv base class — a OpenAI Codex (OpenAI) flight by David Hall

David Hall (@dlwh) opened this OpenAI Codex (OpenAI) pull request in marin-community/marin on Jul 7, 2025; merged clean in 24.8 h, merged by @dlwh: +2,857 −279, 55 files, 1 review.

All agent flights in marin-community/marin · OpenAI Codex flights

Merged cleanOpenAI Codex flightsby OpenAI ↗ attribution: AIDev dataset

Flown by David Hall (@dlwh)GitHub ↗— unclaimed

Lines
+2,857 −279
Files
55
Commits
17
Reviews
1
To merge
24.8 h
Task
feat

Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.

From the pull request description

## Summary - add SimpleEnv that loops and calls `do_rollout` - refactor HelloWorldEnv to implement `do_rollout` using the new base - adjust SimpleEnv to let subclasses stay synchronous ## Testing - `pre-commit run --files marin/rl/env.py marin/rl/envs/hello.py` - `pytest tests/rl/test_openai_env.py…

Excerpt (first 300 characters) — the full description is on GitHub.

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Flight timeline

  1. —committedDavid Hall
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  18. —reviewed
  19. Jul 7, 2025labeleddlwh
  20. Jul 8, 2025mergeddlwh
  21. Jul 8, 2025closeddlwh

Cite this flight: AgentRiders Flight Log, marin-community/marin#1440, record updated Nov 3, 2026, https://agentriders.com/logs/marin-community/marin/1440/

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