When AI Becomes Your On-Call Teammate: Inside Wix's AirBot That Saves 675 Engineering Hours a Month

Wix built AirBot, an AI-powered Slack agent that automates incident investigation for their 3,500+ Apache Airflow pipelines. The system uses LLMs with Model Context Protocol to analyze logs, identify root causes, and generate pull requests automatically. By leveraging Socket Mode for security, LangChain for reasoning, and tiered model selection (GPT-4o Mini for classification, Claude 4.5 Opus for complex analysis), AirBot saves 675 engineering hours monthly. The architecture includes custom MCP integrations with GitHub, Trino, Spark, and OpenMetadata, achieving a 15% fully automated fix rate and 66% positive feedback across 60 engineers.