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The AI Task node uses natural language instructions to perform actions inside a real browser. It is the most flexible node type and is ideal for handling dynamic UI, multi-step interactions, and workflows that benefit from LLM reasoning. Common actions include:

Navigate

Navigate to and through pages

Fill forms

Enter and submit structured data

Use files

Read, upload, or download files

Extract data

Scrape data from a webpage

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Configuration

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Instructions

The core of an AI Task node is a natural language instruction block. You describe what the agent should do, and the LLM executes those steps in the browser. To achieve the most reliable behavior, structure your instructions with:
  • Goal: What the node is trying to accomplish
  • Ordered steps: A sequence of specific actions
  • Edge cases: Known variations the agent must handle
  • Success criteria: Observable conditions indicating completion
Example: 
Your goal is to submit the consultation form for the current patient:
1.	Click “New Consultation”
2.	Fill the form fields with the provided data
3.	Upload any provided attachments
4.	Click “Create”

Edge cases:
- If a modal appears, close it before continuing
- If the page asks for confirmation, accept it

Success criteria:
Once you see the “Consultation Submitted” banner, the task is complete.

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Dynamic Variables

Dynamic variables make your instructions reusable across multiple runs with different inputs. Variables are passed at execution time and referenced with the {{.var_name}} syntax. Example: 
Navigate to the patient search page:
1.	Enter {{.patient_name}} into the search bar
2.	Select the matching result
3.	Fill {{.diagnosis}}
4.	Click Submit
...

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Naming Rules

Variable names must:
  • Start with a letter or underscore
  • Contain only letters, numbers, and underscores
  • Not include special characters such as @, -, ., or spaces
Valid: {{.user_name}}, {{.email}}, {{.api_key}} Invalid: {{.user-name}}, {{.my@var}}, {{.1st_item}}

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Advanced Templating

AI Task instructions support full Go Template syntax, enabling conditionals, loops, and structured data.
Use if statements to conditionally adjust behavior:
{{if .is_premium}}
Navigate to the premium dashboard and enable all features.
{{else}}
Navigate to the free dashboard.
{{end}}
The corresponding variable values should be:
{"is_premium": true}
Iterate through lists or arrays.Simple array:
Fill the form with the following items:
{{range .items}}
- Enter "{{.}}" in the next field
{{end}}
Array of objects:
Add products to the cart:
{{range .products}}
- {{.name}}: {{.price}}
{{end}}
The corresponding variable values should be:
["Item 1", "Item 2", "Item 3"]
Via SDK, you’d pass:
{
  "dynamicData": {
    "products": [
      {"name": "Widget A", "price": "$10"},
      {"name": "Widget B", "price": "$20"}
    ]
  }
}
Inside a range, {{.}} refers to the current item. For objects, use fields like {{.name}} and {{.price}}.
Access nested JSON structures:
User: {{.user.name}} ({{.user.email}})

{{if .user.verified}}
Proceed to checkout.
{{else}}
Please verify your email before continuing.
{{end}}
The corresponding variable values should be:
{"name": "Jane Smith", "email": "[email protected]", "verified": true}

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Model Selection

Choose the model that best fits the complexity of the task:

Asteroid Fast

Lowest latency. Best for simple, fast interactions.

Asteroid Balanced

Default model. Balanced speed and accuracy.

Asteroid Max

Highest intelligence and reasoning depth for complex flows.

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AI Capabilities

Enable specific capabilities depending on what the node needs to perform:

Web Browsing Essentials

Basic navigation, clicking, typing, and interaction

Advanced Web Browsing

Complex navigation, dynamic UIs, and robust action handling

Computer Vision

Visual understanding of the page and image-based interaction

Communication

Exchange messages and emails with the user during execution

File System

Upload, download, read, and write files

Memory & Storage

Store and retrieve data across execution steps

Google Sheets

Read from and write to Google Sheets

Authentication

Generate and manage authentication tokens

Context & Utilities

Access contextual data and system utilities
Explore all available features in AI Capabilities.

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Additional Settings

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Batch Actions

Enable parallel steps for faster execution when the workflow allows it.

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Snapshot Compression

Reduce context size by compressing browser snapshots captured during execution.

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Learn & Compile

Convert successful executions into a deterministic script for future runs. If the script fails, the agent falls back to AI and automatically updates the script. Scripts can include variable placeholders using the <<.VARNAME>> syntax.