Agentic Checks Configuration

Agentic Checks are deprecated and will stop running on December 1, 2026. Migrate your active Agentic Checks before then.This page documents the AgenticCheck construct in Checkly CLI version 9. Checkly CLI version 10 and later no longer include it. To keep managing existing Agentic Checks as code until December 1, 2026, stay on the version 9 release line.

Prerequisites

To review an existing Agentic Check, you need:

Access to Agentic Checks on your Checkly account
An initialized Checkly CLI project if you want to manage the check as code
Any required test credentials saved as Checkly variables or secrets

For CLI setup, see the CLI overview.

Define the check goal

Write the prompt as a monitoring objective, not as implementation instructions. Include the target URL, the user journey, and the observable success criteria. For broader guidance, see Prompt best practices.

Prompt

Go to https://app.example.com/login.
Sign in with the test account.
Verify that the dashboard loads, the account name is visible, and there are no blocking console errors.

Good prompts include:

The exact page or flow to start from
The expected end state
Important assertions
Known constraints, such as test account behavior
What should count as a failure

If an existing prompt covers unrelated paths, split them into separate replacement checks during migration.

Reference variables and secrets

Agentic Checks do not automatically expose all account variables or secrets to the agent. To expose one to an Agentic Check, reference it directly in the prompt with double curly brackets, such as {{TEST_USER_EMAIL}}.

checkout.agentic.check.ts

import { AgenticCheck, Frequency } from 'checkly/constructs'

new AgenticCheck('checkout-flow', {
  name: 'Checkout Flow',
  prompt: 'Sign in with {{TEST_USER_EMAIL}} and {{TEST_USER_PASSWORD}}, then verify that a user can reach the checkout review step.',
  frequency: Frequency.EVERY_1H,
  activated: true,
})

Do not paste secret values directly into the prompt. Store secrets in Checkly and reference them by name with {{SECRET_NAME}}.

Some applications block automated monitoring unless requests include required headers, test bypass tokens, or feature flags. If your flow depends on a header value, store that value as a Checkly variable or secret and say in the prompt which header the agent should send. Do not paste the header value directly into the prompt.

Add skills

Agentic Checks include a default browser automation skill. You can add extra skills when the agent needs domain-specific capabilities.

agentic-runtime.check.ts

import { AgenticCheck } from 'checkly/constructs'

new AgenticCheck('web-quality-check', {
  name: 'Web Quality Agentic Check',
  prompt: 'Review the homepage and verify that the main navigation and primary call to action are usable.',
  agentRuntime: {
    skills: ['addyosmani/web-quality-skills'],
  },
})

Keep the skill list short. Every added skill expands what the agent can do during execution.

Scheduling

The CLI construct supports these frequencies:

Frequency in minutes	Frequency constant
`5`	`Frequency.EVERY_5M`
`10`	`Frequency.EVERY_10M`
`15`	`Frequency.EVERY_15M`
`30`	`Frequency.EVERY_30M`
`60`	`Frequency.EVERY_1H`
`120`	`Frequency.EVERY_2H`
`180`	`Frequency.EVERY_3H`
`360`	`Frequency.EVERY_6H`
`720`	`Frequency.EVERY_12H`
`1440`	`Frequency.EVERY_24H`

Active and deactivated checks

Use activated: false to keep an existing Agentic Check deactivated while preserving its configuration and history:

draft.agentic.check.ts

import { AgenticCheck } from 'checkly/constructs'

new AgenticCheck('draft-agentic-check', {
  name: 'Draft Agentic Check',
  prompt: 'Verify the account settings page loads for a signed-in user.',
  activated: false,
})

Test and deploy

Test your project before deploying:

Terminal

npx checkly test

Deploy the check when you are ready:

Terminal

npx checkly deploy

Getting Started

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Agentic Checks Configuration

Define the check goal

Reference variables and secrets

Add skills

Scheduling

Active and deactivated checks

Test and deploy

​Define the check goal

​Reference variables and secrets

​Add skills

​Scheduling

​Active and deactivated checks

​Test and deploy

Define the check goal

Reference variables and secrets

Add skills

Scheduling

Active and deactivated checks

Test and deploy