Launch HN: Spine Swarm (YC S23) – AI agents that collaborate on a visual canvas

Spine Swarm is a multi-agent system built on an infinite visual canvas where AI agents collaborate to complete complex non-coding projects like competitive analysis, financial modeling, and pitch decks. Instead of linear chat threads, it uses composable blocks—each wrapping a specific AI capability (LLM calls, image generation, web browsing, apps)—that can be connected in branching, model-agnostic workflows. The founders argue that chat is the wrong abstraction for complex AI work and that users need an explicit, controllable workspace rather than context hidden inside a single thread.