Trace and debug eve agent sessions with Vercel Observability
By Steven Van ·
Agent Runs needs no setup, offers developer and business views, and retains data from 12 hours on Hobby to 30 days with Observability Plus.
Eve, Vercel's open-source agent framework, now has a built-in observability view. Every eve project automatically gets an Agent Runs tab in the Vercel dashboard, with no instrumentation required.
The overview lists each run's trigger, duration, and token usage. Drilling into a run shows every turn, model call, and tool call, and runtime errors that used to vanish into function logs now show up against the step that failed.
- Developer mode shows raw tool names, input and output JSON, and per-step token counts.
- Business mode humanizes tool names, hides JSON, and generates a plain-English summary so a non-technical reviewer can audit what an agent did.
- Run data is encrypted by default. Retention is 12 hours on Hobby, 1 day on Pro, and 3 days on Enterprise; Pro and Enterprise teams can extend it to 30 days with Observability Plus.
- Teams running their own OpenTelemetry backend can still export AI SDK spans from agent/instrumentation.ts to destinations such as Braintrust or Datadog.
Details are in the announcement.
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