Build automated AI workflow apps with Google Opal (no-code) | Alpha | PandaiTech

Build automated AI workflow apps with Google Opal (no-code)

A step-by-step guide to building 'micro-apps' using Google Opal. You will learn how to use prompts to generate workflows, customize nodes, and integrate the output directly into Google Docs or Slides.

Learning Timeline
Key Insights

Advantages of Opal Over Agent Kit

Unlike the OpenAI Agent Kit, which requires manual node-by-node construction, Google Opal can generate an entire workflow framework from a single simple prompt.

AI Output Flexibility

Opal does more than just generate text; it acts as an automated bridge to convert AI output into Google Docs, Slides, or web pages with just one click.
Prompts

Blog Post Generator Initial Prompt

Target: Google Opal
create a blog post generator where I enter a topic and it would do research, generate relevant photos, and write a full blog.

Detailed Image Prompting Node

Target: Google Opal Logic Node
You are an expert visual storyteller tasked with generating highly detailed and descriptive image prompts for a Gen AI image generation API. You need to specify the number of images.
Step by Step

Building an AI Workflow with Google Opal

  1. Visit the Google Opal homepage and ensure you are in a supported region for free access.
  2. Locate the main prompt input box at the top of the interface.
  3. Enter a description of the application you want to build (e.g., 'create a blog post generator').
  4. Click the 'Generate' button to allow the AI to automatically build the node structure.
  5. Review the generated flow; it typically includes nodes for 'User Input', 'Research', 'Image Prompt Generation', and 'Content Generation'.
  6. Click on any node (e.g., the Image Generation node) to customize it.
  7. Select the AI model you want to use for that node (e.g., switch from 'Gemini 2.5 Flash' to 'Imagen 4' for better image quality).
  8. Click the 'Start' button to run the workflow simulation.
  9. Enter data into the input node (e.g., blog title 'Benefits of Coffee') when prompted.
  10. Wait for each node to finish processing until the final output is displayed.

Exporting and Integrating Workflow Results

  1. Once the workflow is complete, click on the final generated output.
  2. Click the 'Consult' button if you want to view the specific output for each individual step/node.
  3. Click the 'Save to Google Docs' option to send the text directly to a new document.
  4. Select 'Save as Presentation' if you want to convert the blog or research results into Google Slides.
  5. Choose 'Save into Google Sheets' to save structured data into a spreadsheet.

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