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In this guide, you’ll learn how to build a Relay app workflow that uses videos recorded with Tella to instantly draft help desk articles. This is the same approach we use at Tella: when we add a new video to a help center playlist, a workflow uses the video transcript to write a draft help article, creates that draft in Plain, and then notifies a teammate in Slack to review before publishing.

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What you’ll build

You will create an Relay workflow that:
  1. Triggers when a video is added to a Tella playlist
  2. Checks whether the playlist is intended for help center content
  3. Uses an AI step to write a help article from the video transcript
  4. Drafts the article in Plain using Plain’s API
  5. Sends a Slack message so you can review the draft before it is published

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Step 1: Create the trigger in Relay app

  1. Create a new workflow in Relay app.
  2. Select an instant trigger.
  3. Choose the Tella trigger video added to playlist.
This trigger runs every time a video is added to any playlist.

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Step 2: Add a path or filter for help center playlists

Because the trigger fires for every playlist, you’ll want to ensure the workflow only runs for help center videos. In our case, the videos that goes on our help center are placed in a playlist containing “Help Center.” Set up a conditional path such as:
  • Continue only if the video playlist name contains help center.
If the playlist name does not contain “help center”, the workflow should stop (or take a different path).

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Step 3: Write the help article with ai using the transcript

  1. Add an AI step (we’re using GPT 5.2).
  2. Provide instructions for the article format and content.
  3. Pass the video transcript into the ai step so the article is written based on what is said in the video.
In our workflow, we prompt the AI to write a help center article based on the video name and transcript. We also include additional guidance so the output matches what we need for the next step (creating the article via Plain’s API).

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Step 4: Draft the article in Plain using Plain’s API

  1. Add a step that calls Plain’s api.
  2. Use the ai output as the content for the help article.
  3. Create the article as a draft so it can be reviewed before publishing.
This step creates the help article inside Plain automatically, without manual copying and pasting.

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Step 5: Send a Slack notification to review the draft

  1. Add a Slack step after the draft is created.
  2. Send a message to yourself or your team to let them know a new AI drafted article is ready for review.
This final step keeps a human in the loop, so you can quickly review and publish the article when it looks good.