title	Founder Decision OpenEnv
emoji	🧭
colorFrom	orange
colorTo	indigo
sdk	docker
app_port	8000
pinned	false
license	mit

Founder Decision OpenEnv

A reproducible package for constrained sequential decisions under a frozen synthetic transition model and verifier v0.1.0. It does not predict startup success, reproduce YC content, or claim that a static dataset is an environment.

The package contains 24 original synthetic cases, a four-step interactive OpenEnv server, strict deterministic reward components, deterministic replay, and seeded random plus state-only rule baselines. YC material appears only as official URL/heading/timestamp locators.

Frozen data contract

The dataset record uses the exact decoded allenai/RLVR-GSM schema at revision b14884519de816306cf8ce7fc74547284b9ac548:

messages: nullable list[nullable {content: nullable string, role: nullable string}]
ground_truth: nullable string
dataset: nullable string

No Team Attention field is added to those records. Case state, splits, locators, costs, transitions, and rights flags live in environment-metadata-v0.1.0.json, keyed by the canonical record SHA-256. The pinned Parquet marks every top-level field, list element, and nested message member nullable; V0 preserves that even though the decoded train rows had no top-level null values. See schemas/rlvr-gsm-record.schema-snapshot.json.

Run

uv sync --all-extras --frozen
uv run pytest -q
uv run ycfd-demo
uv run ycfd-baselines --output artifacts/baselines-v0.1.0.json
uv run openenv validate . --json --verbose
uv run server

In another shell, validate the running adapter:

uv run openenv validate --url http://127.0.0.1:8000

OpenEnv v0.4.1 exposes done and scalar reward only. This package adds typed terminated, truncated, and reward_components, while mapping done = terminated or truncated. Use the persistent WebSocket client for an episode; OpenEnv's stateless REST probes are not a trajectory client.

Hard reward

Each component contributes 0.2: action validity, exact/affordable budget-time use, official source locator validity, state arithmetic, and future-leakage rejection. Machine-readable failure codes accompany failures. The optional strategic-quality audit is explicitly excluded from hard reward and is not calibrated to real outcomes.

Boundaries

• Synthetic/derived status: all 24 founder cases are original synthetic fixtures.
• YC boundary: no scraping or redistribution of original text, transcript, audio, or video.
• License: Team Attention code/data is MIT. Third-party evidence retains upstream terms.
• Limitation: passing the verifier means contract compliance under a frozen simulator, not good business judgment or likely startup success.
• Non-endorsement: this independent synthetic benchmark is not affiliated with or endorsed by YC.
• Public surfaces: code is on GitHub and records are on the Hugging Face Dataset Hub. The Docker Space is blocked by the host's PRO requirement; exact status and identifiers are in publication/APPROVAL_REQUIRED.md.