Chunk sidecars

Chunk Sidecars is an innovative developer tool designed to enhance the reliability and efficiency of AI-generated code. It acts as a pre-commit validation layer that runs scoped microbuilds in a CI mirror environment, effectively catching errors before they reach the shared CI pipeline. This approach allows developers to validate code quickly—averaging around 27 seconds—while significantly reducing token usage in retry loops. By auto-detecting the tech stack and supporting various AI agents like Claude Code, Codex, and Cursor, it seamlessly integrates into existing workflows. The main advantage is that it enables agents to iterate on code within a controlled environment, reducing costly failures and speeding up development cycles. Its free availability for CircleCI users makes it accessible for teams seeking robust validation without adding overhead to their CI processes.