architecture-patterns

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use when architecting complex backend systems or refactoring existing applications for better maintainability.

1.14x

Quality

59%

Does it follow best practices?

Impact

100%

1.14x

Average score across 3 eval scenarios

Securityby

Advisory

Suggest reviewing before use

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npx tessl skill review --optimize ./plugins/architecture-patterns/skills/architecture-patterns/SKILL.md

Evaluation results

100%

38%

Library Management Backend — Core Architecture

Clean Architecture structure and use cases

Criteria

Without context

With context

domain/ directory

25%

100%

use_cases/ directory

100%

adapters/ directory

100%

Abstract repo interface

20%

100%

No framework imports in domain

100%

Entity uses @dataclass

100%

Entity has behavior

100%

Use case constructor injection

100%

Use case has request/response DTOs

100%

Adapter returns domain entity

100%

No business logic in adapters

100%

Inward dependency direction

100%

Subscription Billing Domain Model

DDD value objects, aggregates, domain events

Criteria

Without context

With context

Money is frozen dataclass

100%

Email is frozen dataclass

100%

Money validates in __post_init__

100%

Email validates in __post_init__

100%

Subscription has behavior

100%

Aggregate enforces max limit

100%

_events list on entity

100%

Cancel appends domain event

100%

Billing cycle appends domain event

100%

Entities use @dataclass

100%

No framework dependencies

100%

Cancel status guard

100%

Alert Dispatch Service

Hexagonal architecture ports and mock adapters

Criteria

Without context

With context

Ports use ABC

100%

Separate ports per capability

100%

Service depends on ports only

100%

No infrastructure in service

100%

Mock adapter provided

100%

Mock adapter returns fixed result

100%

Tests use mock adapters

100%

Tests pass without network

100%

Adapters implement ports

100%

Core logic in service

100%

No business logic in adapters

100%

Repository: secondsky/claude-skills
Commit: 90d6bd7

Evaluated: 29 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Library Management Backend — Core Architecture Subscription Billing Domain Model Alert Dispatch Service

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