Module ExtensionRegistry 

ExtensionRegistry Module (ApplicationState)

RESPONSIBILITIES

Manages extension registry including command registry and provider handle management. Tracks extension scan paths and enabled proposed APIs.

ARCHITECTURAL ROLE

ExtensionRegistry is part of the ExtensionState module, representing the command registry and provider handle management.

KEY COMPONENTS

• Registry: Main struct containing command registry and provider state
• Default: Initialization implementation
• Helper methods: Registry manipulation utilities

ERROR HANDLING

• Thread-safe access via Arc<Mutex<...>>
• Proper lock error handling with MapLockError helpers

LOGGING

State changes are logged at appropriate levels (debug, info, warn, error).

PERFORMANCE CONSIDERATIONS

• Lock mutexes briefly and release immediately
• Avoid nested locks to prevent deadlocks
• Use Arc for shared ownership across threads
• Use AtomicU32 for unique provider handles

TODO

• Add command validation invariants
• Implement command discovery events
• Add command metrics collection

Structs

Registry

Extension registry containing command registry and provider handle state.