Run HR interview agent with TruGen, OpenAI, and Google Sheets

Quick overview

This workflow creates a TruGen.ai interview agent from a pasted job description, saves the agent and interview link to Google Sheets, then receives call-ended webhook to fetch the interview transcript, analyze it with OpenAI, and log structured candidate evaluation results back to Google Sheets.

How it works

1. Starts manually to initialize setup with your job description.
2. Creates a custom TruGen.ai interview agent using the job description, welcome message, and system prompt, and sets a callback URL for call-ended events.
3. Stores the created TruGen.ai agent ID and interview link and appends them to a Google Sheets “Interview Agents” worksheet.
4. Receives a POST webhook callback when an interview call ends.
5. Fetches the completed conversation details and transcript from TruGen.ai.
6. Sends the transcript to OpenAI (GPT-4o-mini) to generate a strict-JSON hiring assessment with scores, strengths, concerns, and next steps.
7. Formats the assessment into spreadsheet columns and appends the results to a Google Sheets “Interview Results” worksheet.

Setup

1. Create and connect a TruGen.ai API credential, then update the agent creation step with your public webhook callback URL and ensure the callback event is set to call_ended.
2. Add an OpenAI API credential for the interview evaluation step.
3. Connect a Google Sheets OAuth credential and select your spreadsheet and the two worksheets used for “Interview Agents” and “Interview Results” (with matching column headers).

Requirements

• TruGen.AI Credentials