Wrangler configures real-time Issues observability

Introduced 2026-09-17 · score 0.94

HOW TO USE IT

When enabling or updating real-time Issues observability for a Worker, set `observability.issues.enabled` to `true` in Wrangler configuration and deploy the Worker.

{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "observability": {
    "issues": {
      "enabled": true
    }
  }
}

npx wrangler deploy

WHY THIS HELPS

Enable or update real-time Issues observability for a Worker in its Wrangler configuration.

REQUIREMENTS AND LIMITATIONS

Version: 4.134.0
Availability: experimental configuration format supports the equivalent option
observability.issues.enabled: Boolean; set to `true` to detect and group production failures, or `false` and deploy to stop detecting new failures.
Prerequisite: Requires Wrangler 4.134.0 or later.
Prerequisite: A Worker configuration must include `name`, `main`, and `compatibility_date` to deploy; `main` is optional for assets-only Workers.

FIRST-PARTY EVIDENCE

Check the installed version and the source before using it. Entry JSON

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Wrangler configures real-time Issues observability