ktx: An Open-Source Context Layer for Improving Analytics Agent Accuracy

Summary

ktx is an open-source tool that serves as a "context layer" for analytics agents. It helps AI agents query data warehouses accurately by maintaining approved metric definitions, joinable columns, and business knowledge. The tool addresses the problem of general-purpose agents struggling with data tasks—they tend to re-explore the warehouse on every query, invent their own metric logic, and return numbers that don't match approved definitions. Traditional semantic layers are insufficient because they require constant manual upkeep. ktx aims to be a self-improving system that teaches agents how to query correctly without manual intervention.