⚙️ Implementation: How should MCP sessions be synced to MongoDB for persistence...

📋 Decision Context

Question:

How should MCP sessions be synced to MongoDB for persistence and cross-device access?

Task: Session 42.4: MongoDB Session Sync Implementation

🎯 Decision Made

Chosen:

Implemented full MongoDB sync with subSessionNumber, platform, and subSessions[] array for quick cross-reference

Options Considered:

• No alternatives documented

💭 Reasoning

Option B (one document per sub-session) was chosen for simplicity and immutability. Enhanced with: 1) subSessionNumber field for ordering, 2) platform field for multi-platform support, 3) subSessions[] array populated from manifest for quick cross-session reference without additional queries. Fixed backend controller to accept all new fields with proper date conversion. Auto-detection of next available subSession prevents overwrites.

📁 Files Involved

• MCP/mcp-gograb-ai/src/storage/docs-data-integration.ts
• MCP/mcp-gograb-ai/src/tools/chat-context.ts
• MCP/mcp-gograb-ai/src/services/auto-documentation.ts
• apis/backend-ai-api/src/app/infrastructure/infrastructure.controller.ts

🔗 Related

• Decision ID: dev_1768509011430_xft5j29
• Session: 42
• Workspace: editor2

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