Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize (github.com)

A new VSCode extension called Mysti has been launched, allowing developers to utilize multiple AI coding assistants—including Claude, Codex, and Gemini—either individually or in collaboration through a feature known as Brainstorm Mode. With no additional subscriptions required, users can easily switch between AIs, benefiting from each one's unique strengths: Claude excels in deep reasoning and analysis, Codex offers rapid iterations, and Gemini integrates smoothly with the Google ecosystem. The extension supports a modern chat interface with syntax highlighting and various specialized personas, enhancing the coding experience by allowing AIs to debate and synthesize code solutions collaboratively. This development is significant for the AI/ML community as it represents a shift towards multi-agent cooperation in coding, potentially leading to more robust and thoroughly vetted code solutions. By enabling different AIs to critique and enhance each other's outputs, Mysti effectively simulates a dynamic team of senior developers reviewing code, which may help users identify edge cases and improve the quality of their work. With features like adjustable access levels and personalized AI strategies, Mysti not only broadens the tools available to developers but also fosters a collaborative environment that enhances productivity and learning in software development.