Fluent, chainable TypeScript SDK: configure models, enable tools, stream events, then fetch text, JSON, run details or token stats in one call via .asText() or .allowTools('Read', 'Write'). Multi-level logging plus live onMessage/onToolUse callbacks give deep, CLI-compatible observability.
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.