Using the webapp / Insights
Verified against Flow 5.0.0-beta.39
Insights shows how reliable and how fast a workspace's workflows are over a period you choose. It answers four questions in order: are runs succeeding, are they getting slower, what fails and why, and where the time goes.
Select Insights in the side navigation. Every member of the workspace can see it. An administrator can turn it off for the whole install under Admin › Settings › Features.

The filters under the header narrow every section:
key=value pairs, applied when you press Enter or leave the field.Headline tiles. Four numbers for the period:
| Tile | Value | Detail line |
|---|---|---|
| Runs | How many runs | The top three triggers by share |
| Success rate | Succeeded runs as a share of the runs that succeeded, failed, timed out or were invalid. Cancelled and unfinished runs are left out. | How many failed, timed out and were cancelled |
| Typical duration (p50) | Half the runs took less than this | How long runs waited in the queue before starting |
| Slow tail (p95) | 95 in 100 runs took less than this | The longest run, and its workflow |
Durations are taken over succeeded runs, and are active time: waits for approvals and other gates, and pauses, are left out.
Runs per day, by outcome. Stacked bars of each day's runs: Succeeded, Failed, Timed out, Cancelled and Other.
By workflow. One row per workflow, worst success rate first, with its runs, success rate, p50 and p95 durations, Last failure (a link to that run) and a strip of the Last 7 days. Select a workflow's name to filter the page to it and open its detail underneath:
Duration spread, by workflow. A bar from p5 to p95 for each workflow with a mark at p50, on a log scale. A red mark shows the workflow's run timeout, so you can see how close its slow runs come to it.
Task runs. The period's task runs grouped by Task, Task type, Workflow, Model, For-each item or a run Label, over the whole period or per hour, day or month. Each row has runs, failures, and mean, p50, p95 and maximum duration over its succeeded task runs; tokens and cost appear when AI tasks reported them. Wall clock by run label measures, for each value of a run label, the time from the first task run's start to the last one's end across the runs that share it. Slowest task runs lists the ten slowest, each linking to its run. This section takes the workflow, label and date filters, not the status and trigger filters, and shows at most 1,000 groups.
Model usage. Shown when an AI task ran in the period: total tokens, cost as the model endpoints reported it, the number of AI task runs, and a row per model.
Insights reads the runs Flow still holds. Runs older than the Activity retention, 365 days by default, are gone, and so are the runs of deleted workflows. The workspace's monthly run quota still counts those, so the two numbers can differ. See Runs.
You notice that "nightly-report" now finishes after people start work.
The month it changed points to the cause: here, the month the source table grew past a size the export handles quickly.