---
title: Agent instance page
description: "What the Agent instance page covers: purpose, the strip above the
  tabs, and how the tabs fit together."
editUrl: true
head: []
template: doc
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  hidden: false
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draft: false
---

Prefactor records how one run unfolded: lifecycle timing, span hierarchy when present, data-risk signals tied to your schemas and profiles, and tools such as terminating an active instance.

One strip sits above the tab row: it summarises run state and holds actions that affect the whole instance (such as terminate). Switching tabs swaps the detail underneath without losing that context.

## Above the tabs

- Status — Pending, Active, Complete, Failed, Cancelled, or Terminated.
- Time — for completed or terminated runs, the wall-clock range; for active runs, the start time; for pending runs, "Ready to start".
- Registered and Last updated — when Prefactor first recorded the instance and when it last changed.
- **Risk profile** — the profile assigned to the agent, linked through to its configuration.
- **Terminate** — appears while the instance is **Active**; ends the run after you confirm with a reason (see below).

Above the tab content, Prefactor surfaces a **Risk score** — the run's numeric total and risk level under the assigned profile — and an **Activity over last 24 hours** chart with span counts in five-minute buckets. The score's composition by span type lives on the [Risk tab](/admin-ui/agent-instance/risk).

### Terminate

The modal captures a reason before Prefactor sets the status to **Terminated** and closes in-flight spans. You cannot undo termination; the reason travels with the instance and audit trail.

## Tabs

- [Activity tab](/admin-ui/agent-instance/activity) — span-by-span inspection for this run.
- [Risk tab](/admin-ui/agent-instance/risk) — score composition and how the instance total was calculated.
- [Details tab](/admin-ui/agent-instance/details) — structural metadata (agent line, version links, timestamps).

## Related

- [Instance](/platform/concepts/instance) — what an instance is and the states it moves through.
- [Risk profile](/platform/concepts/risk-profile) — how risk levels are derived from spans.
- [Agent page › Instances tab](/admin-ui/agent/instances) — the list you navigated from.
- [Agent page](/admin-ui/agent) — agent-level context, deployments, and versions.