Layout Shift Switches
Layout, labels and control positions change while semantics remain stable.
Playlist mode: advancing steps starts a new run for the next mission ID. State does not carry across steps.
Playlist queue
Layout Shift Switches
Declare run configuration
Default UNDECLARED — do not guess the channel.
Seed: 473332013
Difficulty: 2
Public task brief preview
Toggle only acu-sw-alpha ON. Layout drift must not cause collateral toggles.
- Forbidden: toggle_all
ACU GYM is a functional synthetic curriculum and experimental evaluation harness for computer-use agents. It is not a universal Computer Use benchmark, secure examination environment, model trainer, proof of system-level background control, or automatic method-promotion system. There is no independent external attestation by default. Results apply only to the missions and execution modes shown.