Claude Code Chess Mod Adds Jev Opponent

This is a clever latency showcase, but its real value is demonstrating how typed decision models can drive interactive developer tools without consuming Claude session tokens.

• –Jev receives the position, move history, and legal moves, while the mod enforces chess rules.
• –Each move uses one HTTP request to TypeSafe’s decision API.
• –Developers can switch between Claude, Jev, and the Vercel AI Gateway.
• –Failed requests fall back to a random legal move, so games continue.
• –It is a fun integration demo, not evidence that Jev rivals dedicated chess engines.