---
title: "looker-health-pulse"
type: docs
weight: 1
description: >
"looker-health-pulse" performs health checks on a Looker instance, with multiple actions available (e.g., checking database connections, dashboard performance, etc).
aliases:
- /resources/tools/looker-health-pulse
---
## About
The `looker-health-pulse` tool performs health checks on a Looker instance. The
`action` parameter selects the type of check to perform:
- `check_db_connections`: Checks all database connections, runs supported tests,
and reports query counts.
- `check_dashboard_performance`: Finds dashboards with slow running queries in
the last 7 days.
- `check_dashboard_errors`: Lists dashboards with erroring queries in the last 7
days.
- `check_explore_performance`: Lists the slowest explores in the last 7 days and
reports average query runtime.
- `check_schedule_failures`: Lists schedules that have failed in the last 7
days.
- `check_legacy_features`: Lists enabled legacy features. (*To note, this
function is not available in Looker Core.*)
## Parameters
| **field** | **type** | **required** | **description** |
|-----------|:--------:|:------------:|-----------------------------|
| action | string | true | The health check to perform |
| **action** | **description** |
|-----------------------------|---------------------------------------------------------------------|
| check_db_connections | Checks all database connections and reports query counts and errors |
| check_dashboard_performance | Finds dashboards with slow queries (>30s) in the last 7 days |
| check_dashboard_errors | Lists dashboards with erroring queries in the last 7 days |
| check_explore_performance | Lists slowest explores and average query runtime |
| check_schedule_failures | Lists failed schedules in the last 7 days |
| check_legacy_features | Lists enabled legacy features |
## Example
```yaml
tools:
health_pulse:
kind: looker-health-pulse
source: looker-source
description: |
This tool performs various health checks on a Looker instance.
Parameters:
- action (required): Specifies the type of health check to perform.
Choose one of the following:
- `check_db_connections`: Verifies database connectivity.
- `check_dashboard_performance`: Assesses dashboard loading performance.
- `check_dashboard_errors`: Identifies errors within dashboards.
- `check_explore_performance`: Evaluates explore query performance.
- `check_schedule_failures`: Reports on failed scheduled deliveries.
- `check_legacy_features`: Checks for the usage of legacy features.
Note on `check_legacy_features`:
This action is exclusively available in Looker Core instances. If invoked
on a non-Looker Core instance, it will return a notice rather than an error.
This notice should be considered normal behavior and not an indication of an issue.
```
## Reference
| **field** | **type** | **required** | **description** |
|-------------|:--------:|:------------:|----------------------------------------------------|
| kind | string | true | Must be "looker-health-pulse" |
| source | string | true | Looker source name |
| description | string | true | Description of the tool that is passed to the LLM. |