Automated Error Detection and Diagnosis in n8n

Error Alert and Summarizer Workflow for n8n

This workflow automates error detection, diagnosis, and alerting within n8n workflows. It activates when an error occurs, extracts detailed error information, and leverages OpenAI’s GPT-4 to analyze, diagnose, and recommend solutions for the error. The system then generates a comprehensive email report, including a formatted HTML report of the error, with links to the workflow and execution details, and sends it via Gmail.

**Steps involved:**

1. **Error Trigger:** Listens for workflow errors.

2. **Get Failed Execution:** Retrieves details of the failed execution.

3. **Extract Error Information:** Parses and organizes error data, nodes involved, and trigger details.

4. **Analyze Error with GPT-4:** Sends the error details to OpenAI’s GPT-4 for diagnosis and suggestions.

5. **Set Diagnosis Fields:** Stores GPT-4 analysis results.

6. **Generate HTML Email:** Creates a formatted HTML report of the error, with all relevant details.

7. **Construct Email:** Builds email with error report and sends via Gmail.

**Use case:**

This automation is ideal for monitoring complex n8n workflows, quickly diagnosing issues, and keeping teams informed through detailed error reports without manual intervention.

**Nodes involved:** Error trigger, data fetching, error analysis via GPT-4, email generation, and Gmail integration.

**Practical scenario:** Useful in production environments where workflow errors need immediate attention, diagnosis, and reporting to minimize downtime and streamline troubleshooting.