A Go SDK for the Claude Code CLI: one-shot runs, interactive sessions, in-process Go tools, permission & hook callbacks, inline subagents. Behaviorally verified against the real binary.
Plan/apply for your GTM stack — canonical CRM data model, deterministic audits, reviewable patch plans, approval-gated writeback. Think terraform plan for your CRM.
A small, nestable agent-loop job primitive: loop(body→until→review) composed with dag, pluggable engines, agent-judge gates, budget + run records. TypeScript.
A lightweight, high-performance personal AI agent. Fast async core, pluggable tools, and open integration with external agent ecosystems (Claude Code, Codex, MCP). Simple to configure, easy to extend.
Inspired by the idea of the Upside Down, Downcity is a parallel city built for agents — a hidden operating layer beneath the surface. It is where agents are organized, coordinated, and put to work.