# Dashboards

The dashboard tabs — what they share, how to scope them, and which tab answers which question.

**Dashboards** are the aggregate views: charts and KPI cards over all your traffic, as opposed to the per-conversation reading you do on [Sessions](/docs/platform/observe/sessions.md). Each tab frames the same underlying data around a different question — how fast, how much, how expensive, who.

## What every tab shares

Every dashboard tab reads through the same three controls, so learning them once covers the whole section.

- **Service scope.** Tabs report on one trace service at a time. Switch services and every chart re-reads for that service.
- **Global filter bar and segmentation.** Any filter or segment you set applies across the dashboard — narrow to a user cohort, a custom property, or a label and every metric on the tab re-reads for that slice.
- **Date range.** One window governs the tab. Charts bucket within it; the bucket size follows the window.

Two things sit outside those controls and are worth knowing about, because they surprise people: **change-event markers** follow only the service and date range, ignoring session filters; and **cost figures** are keyed to when a call happened, while session counts are keyed to when data arrived. A divergence between the two is a lead, not a measurement.

## Which tab to open

| Question | Tab |
|---|---|
| Are we up and steady? | [Performance](/docs/platform/dashboards/performance.md) — volumes, error rates, cost |
| Why does it feel slow? | [Latency](/docs/platform/dashboards/latency.md) — TTFR, turn duration, turns per session |
| Who are my best and worst accounts? | [Leaderboard](/docs/platform/dashboards/leaderboard.md) — ranked users, orgs, segments |
| Where is the spend going? | [Cost](/docs/platform/dashboards/cost.md) — spend by model, user, org, component |
| Which tool is the problem? | [Tools](/docs/platform/dashboards/tools.md) — per-tool volume, run time, errors, tokens |
| Which delegated agent needs attention? | [Subagents](/docs/platform/dashboards/subagents.md) — per-subagent issues, tool failures, run volume |
| None of the above | [Custom dashboards](/docs/platform/dashboards/custom-dashboards.md) — build your own board |

## Building your own

When no built-in tab frames the data your way, build a board: a [custom dashboard](/docs/platform/dashboards/custom-dashboards.md) is a named grid of [custom charts](/docs/platform/dashboards/custom-charts.md), each one a live query rather than a saved snapshot.

## See also

- [Overview](/docs/platform/overview.md) — the tenant-wide summary that links into these tabs.
- [How cost is computed](/docs/platform/dashboards/cost-calculation.md) — the arithmetic behind every cost figure here.
- [Labels](/docs/platform/labels.md) — the dimensions you can segment and group these charts by.