Develop Production Extension (Photos or Email)

Description

Develop a production-ready extension as a real-world validation of the WASM extension system. This will serve as the canonical example for third-party developers and demonstrate the full capabilities of the extension platform.

Candidates:

• Photos Extension: AI-powered photo management (face recognition, places, moments) - Currently "In Progress"
• Email Archive Extension: Gmail/Outlook ingestion with OCR and classification - Design complete

Implementation Steps

1. Complete PLUG-002 (VDFS Plugin API Bridge) first
   • Ensure host_spacedrive_call() is fully functional
   • Add required operations: ai.ocr, ai.classify_text, vdfs.write_sidecar
2. Develop the extension as a Rust project using spacedrive-sdk
   • Use #[extension], #[job], #[agent] macros
   • Implement core functionality
3. Create extension-specific models and database tables
   • Define data schema (e.g., Person, Face, Album for Photos)
   • Use #[model] macro for real SQL tables
4. Implement job pipeline with progress tracking
   • Discovery, processing, and persistence phases
   • Checkpointing for resumability
5. Add CLI/UI integration
   • Extension installation flow
   • Configuration UI
   • Job dispatch and monitoring

Acceptance Criteria

• Extension can be loaded and initialized by the PluginManager
• Extension creates and queries its own database tables
• Extension can dispatch jobs with full progress tracking
• Extension integrates with AI operations (OCR, classification, embeddings)
• Extension data is searchable and accessible in the library
• Extension can be distributed as a standalone .wasm + manifest.json

Implementation Files

Extension Code:

• extensions/photos/ - Photos extension (in progress)
• extensions/finance/ - Finance extension (planned)

Supporting Infrastructure:

• core/src/ops/extension_test/ - Test operations
• workbench/core/extensions/ - Design documents

Notes

• Supersedes: Original PLUG-003 (Twitter Archive) is outdated
• Current Focus: Photos extension is partially implemented
• Reference: See docs/extensions/ for SDK documentation and examples/