LorenEteval_Furious/Furious/Extensions/AGENTS.md

Bundled extension guidance

• Extensions contains host-shipped plugins that are not proxy backends. They implement the same public plugin API and lifecycle as entry-point plugins; do not give them privileged side channels into repositories, controllers, or UI.
• StandardSubscriptionPlugin owns standard subscription decoding only. Decoders convert untrusted bytes into neutral SubscriptionResult items; SubscriptionImportService owns profile construction/metadata and SubscriptionManager owns reconciliation and persistence.
• Decoder probing is ordered and failure-isolated. Return None when a format does not match, validate sizes/types and bound nesting/work for matched input, preserve useful names/upstream IDs, and never log complete payloads or links.
• Keep bundled extension imports deterministic, side-effect-light, and discoverable by source and Nuitka builds. Test format selection/fallback, malformed and secret-bearing payloads, stable duplicate identity inputs, plugin rollback, and absence of repository/UI mutation during decoding.