Fix Art Issues

• Commit with a message that includes Closes #<issue-number>.
• Push the feature branch. If HTTPS push fails due to SAML SSO, set SSH remote: git remote set-url origin [email protected]:OpenPipe/ART.git

4. Open a Draft PR

• gh pr create --base main --draft.
• PR body: ## Summary, Closes #<number>, ## Changes, ## Test plan.

5. Testing

• No test artifacts in the final PR: debug prints, test scripts, and temporary changes must NOT be committed.
• Update the PR's test plan section with detailed results.
• When testing passes, mark the PR as ready: gh pr ready.

Reference

Read CONTRIBUTING.md at the repo root for guidance on code quality checks (prek), CI cache refresh, and the release process.

Dependency Management Tips

• Pin versions strictly (==) for critical deps like transformers, trl, unsloth, unsloth-zoo, vllm to avoid surprise breakage from new releases.
• Don't loosen pins without reason: if a dep was ==X.Y.Z, keep it pinned unless there's a specific reason to change. Don't use >= just because it seems more flexible.
• uv run fails on macOS for backend deps (apex/torch need CUDA). This is expected — use uvx ruff for linting locally, test on GPU cluster.

Deploying a GPU Cluster

Name the SkyPilot cluster after the branch name without the fix/ prefix, replacing / with - (SkyPilot doesn't allow slashes). For example, if the branch is fix/short-description:

uv run sky launch -c short-description skypilot-config.yaml -y

To connect: ssh short-description

To tear down when done: uv run sky down short-description

GPU Cluster Testing Tips

• Kill stale GPU processes before re-running tests: nvidia-smi --query-compute-apps=pid --format=csv,noheader | xargs -r kill -9. Previous failed runs leave processes holding GPU memory.
• Set gpu_memory_utilization in test scripts (e.g. 0.7) — the default 0.9 is too high when Unsloth's training model is also loaded on the same GPU.
• Redirect test output to a log file: nohup python test.py > /tmp/output.log 2>&1 & then tail -f /tmp/output.log. SSH background tasks lose output when connection drops.
• Git on cluster: SSH keys may not be configured. Use HTTPS with token: git remote set-url origin https://${GITHUB_TOKEN}@github.com/OpenPipe/ART.git
• Tear down clusters when done: sky down <cluster-name> -y

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