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Scoping: All Agents vs One Agent

Scoping: All Agents vs One Agent

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2 mins READ

Introduction

Monitoring opens on every agent at once, and narrows to one. Those two scopes are good at opposite things, and using the wrong one is why a real problem can sit unnoticed on a dashboard somebody checks every morning.

Where to find it

The scope picker sits above the switchers, defaulting to All Agents. The time range sits opposite it: Last 24 hours, 7, 14 or 30 days (default 30), bucketed by day in your time zone.

What each scope is good and bad at

All agents

One agent

Good at

Noticing that something changed

Explaining what changed

Bad at

Saying which agent

Noticing in the first place

Fails by

Absorbing a single agent's problem into the aggregate

Only ever showing you what you already suspected

Use for

The periodic review

The investigation

Note: The fleet view has a blind spot proportional to your fleet. One agent doubling its error rate is obvious across five agents and invisible across fifty. The more successful your AI programme is, the less the aggregate can tell you — so the review habit has to change as the estate grows.

The workflow that works

  1. Start at fleet scope, at a fixed cadence — You are looking for a change in shape, not a number. Anything unexplained becomes step two.

  2. Check what kind of step moved — Run Types, LLM Calls and Tools show whether model calls or tool calls account for the change. See Run Types.

  3. Narrow to candidate agents — The registry table, sorted by Incidents or Activity, is often faster than stepping through the picker.

  4. Confirm at agent scope — Same switchers, one agent. This is where a suspicion becomes a finding.

  5. Drop into individual runs — The agent's Observability tab — see Reading a Trace.

Compensating for the blind spot

Because the aggregate degrades as the estate grows, fleet-level review needs a supplement rather than more attention. Three that work:

  • Review the registry table, not only Monitoring. Per-agent incident and activity counts sit side by side there, so an outlier is visible as a row rather than hidden in a total.

  • Let incidents do the noticing. A control that fires is agent-specific by construction — it names the asset. That is a per-agent signal arriving without anyone scoping a view.

  • Review the newest agents specifically. A recently registered agent has the least established baseline and contributes least to the aggregate, which is exactly the combination the fleet view handles worst.

"The fleet dashboard gets less useful with every agent you add to it. Plan the review for the estate you will have, not the one you started with."

The time range is part of the scope

Range choice changes what is visible as much as agent scope does. A window wide enough to establish a baseline will flatten a spike; one narrow enough to show the spike has no baseline to judge it against.

The practical habit is to look at both: a wide range to know what normal is, a narrow one to see what just happened. A finding that survives both is real.