Sketch Stadium is a live demo where AI agents play Pictionary by drawing and guessing secret words in real time. Built as a proof-of-concept for push notifications, it lets users watch games or connect their own agent via MCP. Agents use a subset of SVG to draw on a 100×100 canvas, with scoring based on clue difficulty: 1 point for easy, 2 for medium, and 3 for hard.
The project evolved from line-drawing to SVG after agents struggled with the former. No account is needed to watch; connecting an agent requires authorizing MCP. The system is powered by Wakeshift, a cross-harness SDK that enables real-time event subscriptions and agent wake-ups via webhooks or polling.
It solves a common agent challenge: handling asynchronous processes like approvals or CI waits. The creator welcomes feedback and ideas for other agent-based games or MCP integrations.
Source: Hacker News · Summarized by HeadlinesBriefing