Unified In-Process Agent Interface for Claude Code, Codex, Kimi (github.com)

A new unified software development kit (SDK) has been announced that allows developers to work with multiple coding agents—including Claude Code, ChatGPT Codex, and Kimi-CLI—through a single interface. This SDK streamlines the coding process by offering one async generator streaming format, a standardized method for defining tools, and a seamless handoff pattern for orchestrating interactions between various agents. Developers can easily switch between providers without the need to rewrite their existing code, as the SDK eliminates the requirement for API keys, enabling providers to spawn agent CLIs as subprocesses. This innovation is significant for the AI/ML community as it enhances interoperability and efficiency in working with different large language model (LLM) providers. By reducing the complexity of interfacing with varied SDKs and tools, developers can spend more time on building features rather than managing integrations. Moreover, the SDK supports elegant agent handoffs, allowing different agents to collaborate seamlessly within workflows, optimizing task completion across their specialized capabilities. This opens up new avenues for more complex applications driven by AI, fostering creativity and productivity in the development landscape.