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Alerts send real-time Slack notifications when signal events are detected in your traces. Each alert is tied to a signal and a Slack channel — whenever the signal fires, Laminar posts a notification to that channel.
Project alerts settings page showing Slack connection and alert management
Alerts require a Slack integration and are available on paid plans only.

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Prerequisites

Before creating alerts, you need:
  1. A connected Slack integration — Connect Slack from Workspace > Integrations (see Integrations). You can also connect Slack directly from the Alerts settings page.
  2. At least one signal — Create a signal in your project (see Signals). Alerts fire based on signal events.

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Create an alert

  1. Go to Project Settings and select Alerts from the sidebar.
  2. Click the + Alert button.
  3. Fill in the alert form:
    • Name — A descriptive name for the alert (for example, “High error rate alert”).
    • Signal — Select the signal that will trigger the alert. After selecting a signal, a preview chart shows how often it would have triggered in a recent time period.
    • Slack Channel — Pick the public Slack channel where notifications should be sent.
  4. (Optional) Click Test to send a test notification to the selected channel.
  5. Click Create.
The alert is immediately active. Whenever the selected signal detects an event, Laminar sends a notification to the configured Slack channel with the event details and a link to the trace.

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Edit an alert

  1. Go to Project Settings > Alerts.
  2. Find the alert in the table and click the edit (pencil) icon.
  3. Update the name, signal, or Slack channel.
  4. Click Save.

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Delete an alert

  1. Go to Project Settings > Alerts.
  2. Find the alert in the table and click the delete (trash) icon.
  3. Confirm the deletion in the dialog.
You will stop receiving notifications for that alert immediately.

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How alert notifications work

When a signal event is detected on a trace, Laminar checks if any alerts are configured for that signal. For each matching alert, a Slack message is sent to the configured channel containing:
  • The signal name
  • Extracted information from the signal’s structured output
  • A link to the trace so you can investigate directly