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docs: Add Mosaic Component Architecture and Guard Rails design docs
- mosaic-component-architecture.md: OpenClaw wrapper pattern, component naming,
  job tracking, chat integration, database schema
- guard-rails-capability-permissions.md: Capability-based permission model

Related: #162 (M4.2 Infrastructure Epic)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-01 01:26:01 -06:00
..

Architecture

Technical architecture and design principles for Mosaic Stack.

Chapters

  1. Overview — System design and component architecture
  2. Authentication — BetterAuth integration and OIDC flow
  3. Design Principles — PDA-friendly patterns and UX guidelines

Architecture Principles

  • Type Safety First: Shared types prevent frontend/backend drift
  • Multi-Tenant Ready: Row-level security with workspace isolation
  • PDA-Friendly: Calm, stress-free language and visual design
  • Modular: Plugin architecture for extensibility

Technology Decisions

Key architectural choices and their rationale:

  • BetterAuth over Passport.js for modern authentication
  • Prisma ORM for type-safe database access
  • Monorepo with pnpm workspaces for code sharing
  • PostgreSQL + pgvector for AI-ready data storage

Next Steps

  • Review API for implementation details
  • Check Development for workflow standards