Sprites give a coding AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → a cloud development environment whose files remain available between work sessions. In Fly.io's introduction, a Sprite goes idle after use and later returns with an installed program still present. This persistence lets subsequent tasks reuse packages and working files instead of rebuilding the environment each time.
Filesystem checkpoints also let users return to a saved local state after a damaging change. Persistence and rollback serve different needs: one preserves accumulated work, while the other provides a recovery point. The implementation account explains the storage behind those capabilities.
Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
sandbox — An isolated environment where AI-generated code or agent actions run without being able to touch anything real.
