Architecture: How should Space collections be initialized for the preferen...

Documentation for Sessions

🏗️ Architecture: How should Space collections be initialized for the preferen...

Date: 2026-01-31
Time: 18:32:07 UTC
Session: editor2-75.19
Agent: backend
Confidence: 90%
Status: ✅ Documented

📋 Decision Context

Question:

How should Space collections be initialized for the preference system?

Task: Session 75.15: Two-Layer Agent Intelligence & Preference Override System

🎯 Decision Made

Chosen:

Add space_agent_context, user_preferences, and preference_overrides to createSpaceDatabase() and seed default override config on Space creation

Options Considered:

Create collections lazily on first access
Create collections in createSpaceDatabase but don't seed data
Create and seed in createSpaceDatabase (chosen)
Use a migration script

💭 Reasoning

Previously, preference_overrides was created lazily on first access, which caused race conditions if multiple requests hit simultaneously. By seeding the default config during Space creation (using createDefaultOverrideConfig from shared-models), we guarantee the singleton document exists before any preference resolution happens. This eliminates a class of concurrency bugs.

📁 Files Involved

apis/backend-api/src/app/spaces/space-database.service.ts

🔗 Related

Decision ID: dev_1769884327283_bvlqy8k
Session: 75
Workspace: editor2

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