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everything-claude-code/.claude/rules/common/patterns.md
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Common Patterns

Skeleton Projects

When implementing new functionality:

  1. Search for battle-tested skeleton projects
  2. Use parallel agents to evaluate options:
    • Security assessment
    • Extensibility analysis
    • Relevance scoring
    • Implementation planning
  3. Clone best match as foundation
  4. Iterate within proven structure

Design Patterns

Repository Pattern

Encapsulate data access behind a consistent interface:

  • Define standard operations: findAll, findById, create, update, delete
  • Concrete implementations handle storage details (database, API, file, etc.)
  • Business logic depends on the abstract interface, not the storage mechanism
  • Enables easy swapping of data sources and simplifies testing with mocks

API Response Format

Use a consistent envelope for all API responses:

  • Include a success/status indicator
  • Include the data payload (nullable on error)
  • Include an error message field (nullable on success)
  • Include metadata for paginated responses (total, page, limit)