This is an open-source agent SDK for TypeScript that executes the full agent loop in-process without CLI dependencies. It supports Anthropic Claude and OpenAI-compatible APIs, and works with models including GPT-4o, Claude Sonnet, DeepSeek, Qwen, and Mistral. Agents can use built-in tools like file reading and globbing, and the SDK can be deployed to cloud, serverless, Docker, or CI/CD environments.