[scosman]

Summary

Adds a docs page and a Community Environments card for Stripe World, a stateful OpenEnv of Stripe's Billing and Payments API (HuggingFace Space). Agents use Stripe's MCP tools. Each connection gets a private account that can start from a saved fixture with a seed: an empty account, or one of two test-mode companies with history (small_co, 45 customers; big_co, about 380). state() returns a row-level change log, so an episode can be graded on what the agent changed rather than on what it said.

• docs/source/environments/stripe_world.md: what it models, the fixtures it ships, how episodes are graded, an AutoEnv.from_hub(..., skip_install=True) quick start, and how to run it locally
• docs/source/environments.md: card under Community Environments, since the code lives outside this repo
• docs/source/_toctree.yml: sidebar entry

Docs only. No code is added under envs/.

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• New environment
• Refactoring

Alignment Checklist

• I have read .claude/docs/PRINCIPLES.md and this PR aligns with our principles
• I have checked .claude/docs/INVARIANTS.md and no invariants are violated
• I have run /pre-submit-pr (or bash .claude/hooks/lint.sh and tests) and addressed all issues

Note on invariant 3 (rewards inside the environment): Stripe World returns reward=None; episodes are graded by the caller from the change log in state(). The page states this plainly.

RFC Status

• Not required (bug fix, docs, minor refactoring)

Test Plan

• python scripts/sync_env_docs.py --check passes.
• Full doc-builder build at the commit CI pins passes (MDX and HTML); the new page renders and the catalog card links to it.
• The quick-start snippet was run end to end against a local Stripe World server built from main: it created a customer, state() returned the change log, and list_tools returned the tools.
• reset(fixture="small_co") and reset(fixture="big_co") were run against the same server to confirm the Fixtures section.

Claude Code Review

N/A

---

Note

Low Risk
Documentation-only updates to the environment catalog and navigation; no application code or behavior changes in this repository.

Overview
Adds Stripe World to the docs as an external community OpenEnv: a stateful Stripe Billing/Payments simulation with MCP-style tools, per-episode accounts, fixtures, and caller-side grading from a row-level change log in state() (no built-in reward).

Introduces docs/source/environments/stripe_world.md covering modeled API scope, reset/step/state usage, the empty / small_co / big_co fixtures, an AutoEnv.from_hub("scosman/stripe_world", skip_install=True) quick start, and local server setup. The Community Environments grid on environments.md gets a new card linking to that page and the Hugging Face Space, and _toctree.yml adds a sidebar entry under Environments.

No runtime or envs/ code changes—catalog and navigation only.

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[burtenshaw]

ALIGNMENT FLAG: caller-side reward computation. This catalog page explicitly documents reward=None and external grading from state(). The repository invariant keeps reward computation within the environment boundary. @Darktex should decide whether this external community listing is an accepted exception or needs a server-side reward adapter; this should be coordinated with the tutorial in #1450.

[scosman]

@Darktex same question and comment as here: #1450 (comment) - I won't paste the whole thing here, but it applies equally.

It's by design, LMK if you agree.

[burtenshaw]

I merged main into this branch to fix a conflict in the docs index with the OR-Tools environment (#1501). Both entries are kept, and python scripts/sync_env_docs.py --check passes. Please pull before you push again.

[scosman]

@burtenshaw ready to merge when you are. I don't have permissions to merge, so you'd need to.

Same case for #1450