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SNAP Sync Documentation

This directory contains documentation for the SNAP sync implementation in Fukuii.

Documentation Files

📊 SNAP_SYNC_STATUS.md - Current Status & Progress

Purpose: Track implementation progress and current state
Audience: Developers and project managers
Update Frequency: After each major milestone

Reports on: - Completed components and phases - Critical gaps and blockers - Timeline and roadmap - Success criteria progress

📋 SNAP_SYNC_TODO.md - Implementation Task List

Purpose: Detailed task inventory and priorities
Audience: Developers implementing features
Update Frequency: Continuously during development

Contains: - Detailed task breakdowns by priority (P0, P1, P2, P3) - Required work for each task - File-level implementation notes - Success criteria checklist

📖 SNAP_SYNC_IMPLEMENTATION.md - Technical Reference

Purpose: Evergreen technical documentation
Audience: Developers and users
Update Frequency: When features are completed

Documents: - Protocol overview and architecture - Completed features and capabilities - Technical specifications - Performance characteristics

Quick Reference

Current Status (2025-12-02): - ✅ All P0 critical tasks complete - ⏳ P1 production readiness in progress - 📊 Overall: 70% complete

Next Steps: 1. State storage integration (1 week) 2. ByteCode download (1 week) 3. State validation enhancement (1 week) 4. Testing & deployment (3 weeks)

Key Files Modified: - SNAPSyncController.scala - Core sync orchestration - NetworkPeerManagerActor.scala - Message routing - Handshaker states - SNAP capability detection

For New Contributors

  1. Start with SNAP_SYNC_IMPLEMENTATION.md to understand the architecture
  2. Check SNAP_SYNC_STATUS.md to see what's done and what's in progress
  3. Review SNAP_SYNC_TODO.md for tasks you can work on
  4. See ADR documents in docs/adr/protocols/ for design decisions

References