Claude Agent SDK v0.1.48: Full Agent Loop + Built-in Tools Without Building Infrastructure — Python and TypeScript Available

Anthropic Engineering·medium signal

Anthropic's Claude Agent SDK (renamed from Claude Code SDK) packages the full agent loop, file operations, shell commands, web search, and MCP integration as a library. Developers get the same context management that powers Claude Code without building any scaffolding. Python package is at v0.1.48 on PyPI; TypeScript at v0.2.71 on npm. The key design principle is 'give your agents a computer' — agents operate on the local environment directly, dramatically expanding capability beyond pure API calls.