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Harveyj

Built at The Recursive Agents Hackathon · Oct 17, 2026 · San Francisco, CA

Harveyj — Demo video

Bug Hunters is a QA crew that lives inside the Godot editor. You press one button and AI testers play your game, find bugs, prove each bug by replaying it from a fresh start, and write plain-English bug reports with a GIF and the exact steps, ready to fix. Plain code acts as the referee, so the AI never decides on its own what counts as a bug. The crew also gets better on its own (Version N+1). A coach model studies past test runs and writes a better game plan and small helper programs, and a tryout keeps a new version only if it finds more confirmed bugs on the same levels. On bugs it had never practiced on, version 1 found 19 bugs where version 0 found 5, across 16 test runs. It also found real bugs in real open-source games: a mid-air double jump in Pixel Adventure, and the bug in PlatformerController2D issue #2. After you fix a bug, “Re-check all” replays every saved bug, so the old reports become regression tests.

Team