Skip generated data-refresh Vercel previews

[0thernet]

Summary

• Skip only disposable Vercel Previews for generated automation/model-data-refresh-<run>-<attempt> branches in the exact hraness/aicharts GitHub project.
• Preserve production builds, ordinary pull-request previews, custom/manual environments, and fail-open behavior for missing or unfamiliar provider metadata.
• Document Vercel's manual redeploy override for inspecting a generated refresh when needed.

The refresh workflow already runs the full application check before publishing its branch and requires successful CI on the exact head before merge. No required GitHub check, deployment protection, runtime limit, or provider capacity setting changes.

Validation

• Focused regression suite: 14 tests and 84 assertions pass, including actual Node execution and Vercel's exit-zero-to-skip contract.
• Full repository gate passed: NEXT_PUBLIC_HRANESS_MAILING_TURNSTILE_SITEKEY=1x00000000000000000000AA bun run check through the host scheduler. Generated-data checks, TypeScript, ESLint, all 728 tests (121,148 assertions), the production build, and the atlas/chart-export/model-card browser contracts passed.
• Managed local-efficiency baseline is current; git diff --check passes.
• Independent integration review completed without requested changes.

Cost boundary

The September 1–9 observation window contained 68 generated refresh previews among 174 deployments. Those 68 consumed approximately 65.75 minutes from build start to Ready, before cache-finalization work. This change avoids future equivalent preview builds without changing production refresh delivery. Actual savings depend on future refresh frequency and configured build-machine pricing; deployment counts alone are not a dollar estimate.

[vercel]

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Project	Deployment	Actions	Updated
aicharts	Ready	Preview	Sep 9, 2026 8:53pm UTC