LorenEteval_Furious/Furious/Controllers/AGENTS.md

Controller guidance

Shared state authorities

• Controllers own process-lifetime shared state and transition policy. They coordinate injected repositories/services and publish structured Qt signals; they do not own transient widgets, network replies, core processes, or worker pools.
• ConnectionController is the sole connection state machine. A GUI start remains Connecting while one generation- checked ConnectionManager transaction acquires readiness/TUN resources; System Proxy and the active-profile commit occur only after success. Disconnect/reconnect cancels the exact in-flight generation and ignores stale completion.
• Preserve state and signal ordering, interaction gating, the exact selected ServerProfile, runtime snapshots, reconnect preference, and rollback after validation, runtime, TUN, System Proxy, cancellation, or unexpected-exit failure. Worker/native callbacks cross to the controller’s Qt thread before transition.
• RoutingController owns available capability options plus selected/persisted routing. Distinguish a newly selected repository profile from the profile snapshot already owned by a live connection; changes use controlled reconnect, not mutation of the running document. User-defined routing labels are semantic data, not translatable UI literals.
• SettingsController is the shared policy path used by Home, Settings, tray, and platform integration. Validate availability and complete host effects before persisting success; UI surfaces render its signals rather than keeping duplicate preference state.

Verification and evolution

• Test exact states and signal counts for async success, invalid input, supersession, cancellation, partial acquisition, System Proxy failure, unexpected exit, routing refresh/reconnect, startup restoration, failed host settings, missing partial-startup dependencies, and repeated shutdown. If ownership moves deliberately, update this guide and the affected controller tests instead of keeping a compatibility controller as a second authority.