Agent Valley, coding agents in Stardew Valley

Agent Valley is a SMAPI mod for Stardew Valley. You plant a Junimo on your farm, in the saloon or down in your cellar, and hand it a code folder: it’s a real Claude Code or Codex agent that reads your files, runs commands and edits your project while you water your cauliflowers. When it’s done, it calls you: your phone rings, a card shows its message, and you reply on the spot.

What I did

• The bridge to the official CLIs: every message starts claude -p in stream-json or codex exec --json in the background and resumes the same session, without ever touching the game’s save.
• Agents that live outside any map: change location, sleep, open your inventory, the agent keeps going and is back in its spot next time you play.
• The in-game interface: a chat docked on the side with tabs and drafts, an agents panel, a phone to warp to them or call them over, status bubbles above the Junimos.
• Slash commands with autocompletion (including Claude Code’s own commands and skills), a “!” shell whose output goes along with the next message, and a button to take the session over in a real terminal.
• Three permission levels per agent, in-game settings through Generic Mod Config Menu, English and French, Windows and macOS.

Released on October 21, 2026, MIT license.