Vercel has redesigned the trace viewer for Vercel Workflows and the Workflow SDK. The update adds span search, timeline zooming, keyboard step navigation, and per-step inspection of inputs, outputs, and run metadata.
The viewer is not limited to production. Run `npx workflow@beta web` locally to inspect runs during development before they ever hit a deployment.
The interest here is in the details: how span search performs at scale, what metadata is exposed per step, and whether the keyboard navigation holds up on long-running workflows. The full changelog at vercel.com/changelog is worth reading for the specifics.
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